diff options
| author | Greg Kroah-Hartman | 2023-07-31 09:31:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-07-31 09:31:38 +0200 |
| commit | 1346e9331abe8d08c05148def1cb2cdf03085c40 (patch) | |
| tree | 2cab2825e6292ec41354b5b3da7d4137f5e62941 /arch | |
| parent | 0995c95b0882ee0ed0ea1930c8918bb0899e924c (diff) | |
| parent | 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 (diff) | |
Merge 6.5-rc4 into char-misc-next
We need the char-misc fixes in here as well for testing.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
124 files changed, 622 insertions, 408 deletions
diff --git a/arch/arm/configs/axm55xx_defconfig b/arch/arm/configs/axm55xx_defconfig index bfbaa2df3be5..d1c550894a65 100644 --- a/arch/arm/configs/axm55xx_defconfig +++ b/arch/arm/configs/axm55xx_defconfig @@ -197,7 +197,7 @@ CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=y CONFIG_CUSE=y CONFIG_FSCACHE=y diff --git a/arch/arm/configs/davinci_all_defconfig b/arch/arm/configs/davinci_all_defconfig index 821d966c95a5..05ea71778ef8 100644 --- a/arch/arm/configs/davinci_all_defconfig +++ b/arch/arm/configs/davinci_all_defconfig @@ -232,7 +232,7 @@ CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_XFS_FS=m -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig index b0f0baa3a6c4..53b1d41b4a8b 100644 --- a/arch/arm/configs/exynos_defconfig +++ b/arch/arm/configs/exynos_defconfig @@ -327,7 +327,7 @@ CONFIG_PWM_SAMSUNG=y CONFIG_PHY_EXYNOS5250_SATA=y CONFIG_EXT2_FS=y CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y diff --git a/arch/arm/configs/footbridge_defconfig b/arch/arm/configs/footbridge_defconfig index 87c489337d0e..c9f4594b7ca9 100644 --- a/arch/arm/configs/footbridge_defconfig +++ b/arch/arm/configs/footbridge_defconfig @@ -94,7 +94,7 @@ CONFIG_LEDS_CLASS=y CONFIG_LEDS_TRIGGERS=y CONFIG_LEDS_TRIGGER_TIMER=y CONFIG_EXT2_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_MSDOS_FS=m diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index 05706696a5fb..0a90583f9f01 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -442,7 +442,7 @@ CONFIG_EXT3_FS_SECURITY=y CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y # CONFIG_PRINT_QUOTA_WARNING is not set -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=y CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig index d7a0bca641eb..1cb145633a91 100644 --- a/arch/arm/configs/keystone_defconfig +++ b/arch/arm/configs/keystone_defconfig @@ -207,7 +207,7 @@ CONFIG_RESET_TI_SYSCON=m CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_FANOTIFY=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_NTFS_FS=y diff --git a/arch/arm/configs/lpc32xx_defconfig b/arch/arm/configs/lpc32xx_defconfig index d7df0486850f..e2b0ff0b253f 100644 --- a/arch/arm/configs/lpc32xx_defconfig +++ b/arch/arm/configs/lpc32xx_defconfig @@ -162,7 +162,7 @@ CONFIG_MAX517=y CONFIG_PWM=y CONFIG_PWM_LPC32XX=y CONFIG_EXT2_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y diff --git a/arch/arm/configs/milbeaut_m10v_defconfig b/arch/arm/configs/milbeaut_m10v_defconfig index 385ad0f391a8..7d4284502325 100644 --- a/arch/arm/configs/milbeaut_m10v_defconfig +++ b/arch/arm/configs/milbeaut_m10v_defconfig @@ -81,7 +81,7 @@ CONFIG_SOC_BRCMSTB=y CONFIG_MEMORY=y # CONFIG_ARM_PMU is not set CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_NTFS_FS=y diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index f0800f806b5f..c7b2550d706c 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -1226,7 +1226,7 @@ CONFIG_COUNTER=m CONFIG_STM32_TIMER_CNT=m CONFIG_STM32_LPTIMER_CNT=m CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_NTFS_FS=y diff --git a/arch/arm/configs/omap1_defconfig b/arch/arm/configs/omap1_defconfig index 53dd0717cea5..7c2cc7a89511 100644 --- a/arch/arm/configs/omap1_defconfig +++ b/arch/arm/configs/omap1_defconfig @@ -188,7 +188,7 @@ CONFIG_RTC_DRV_OMAP=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_DNOTIFY is not set -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_MSDOS_FS=y diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index 9bd36dd39bd0..b685018dcf54 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -678,7 +678,7 @@ CONFIG_EXT4_FS_SECURITY=y CONFIG_FANOTIFY=y CONFIG_QUOTA=y CONFIG_QFMT_V2=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y diff --git a/arch/arm/configs/pxa_defconfig b/arch/arm/configs/pxa_defconfig index b46e39369dbb..b0c3355e2599 100644 --- a/arch/arm/configs/pxa_defconfig +++ b/arch/arm/configs/pxa_defconfig @@ -589,7 +589,7 @@ CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=m -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_CUSE=m CONFIG_FSCACHE=y diff --git a/arch/arm/configs/rpc_defconfig b/arch/arm/configs/rpc_defconfig index 65a3fded55be..b1d12a2c2ef8 100644 --- a/arch/arm/configs/rpc_defconfig +++ b/arch/arm/configs/rpc_defconfig @@ -79,7 +79,7 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_PCF8583=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_MSDOS_FS=m diff --git a/arch/arm/configs/s5pv210_defconfig b/arch/arm/configs/s5pv210_defconfig index 4c1e480b5bbd..72df854878f8 100644 --- a/arch/arm/configs/s5pv210_defconfig +++ b/arch/arm/configs/s5pv210_defconfig @@ -103,7 +103,7 @@ CONFIG_PHY_SAMSUNG_USB2=m CONFIG_PHY_S5PV210_USB2=y CONFIG_EXT2_FS=y CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y diff --git a/arch/arm/configs/socfpga_defconfig b/arch/arm/configs/socfpga_defconfig index 70739e09d0f4..d6dfae196f84 100644 --- a/arch/arm/configs/socfpga_defconfig +++ b/arch/arm/configs/socfpga_defconfig @@ -136,7 +136,7 @@ CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT3_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_VFAT_FS=y CONFIG_NTFS_FS=y CONFIG_NTFS_RW=y diff --git a/arch/arm/configs/spear13xx_defconfig b/arch/arm/configs/spear13xx_defconfig index bfde0c86cdc5..c8128a6180e7 100644 --- a/arch/arm/configs/spear13xx_defconfig +++ b/arch/arm/configs/spear13xx_defconfig @@ -85,7 +85,7 @@ CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_SECURITY=y CONFIG_EXT3_FS=y CONFIG_EXT3_FS_SECURITY=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=y CONFIG_MSDOS_FS=m CONFIG_VFAT_FS=m diff --git a/arch/arm/configs/spear3xx_defconfig b/arch/arm/configs/spear3xx_defconfig index a96ed5cf778e..97ea2e9a6f07 100644 --- a/arch/arm/configs/spear3xx_defconfig +++ b/arch/arm/configs/spear3xx_defconfig @@ -68,7 +68,7 @@ CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_SECURITY=y CONFIG_EXT3_FS=y CONFIG_EXT3_FS_SECURITY=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_MSDOS_FS=m CONFIG_VFAT_FS=m CONFIG_FAT_DEFAULT_IOCHARSET="ascii" diff --git a/arch/arm/configs/spear6xx_defconfig b/arch/arm/configs/spear6xx_defconfig index 3e2c2abae5ba..a7a3413ac968 100644 --- a/arch/arm/configs/spear6xx_defconfig +++ b/arch/arm/configs/spear6xx_defconfig @@ -54,7 +54,7 @@ CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_SECURITY=y CONFIG_EXT3_FS=y CONFIG_EXT3_FS_SECURITY=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_MSDOS_FS=m CONFIG_VFAT_FS=m CONFIG_FAT_DEFAULT_IOCHARSET="ascii" diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 0777bcae9104..a25d783dfb95 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -1469,7 +1469,7 @@ CONFIG_BTRFS_FS_POSIX_ACL=y CONFIG_FANOTIFY=y CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y CONFIG_QUOTA=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=m CONFIG_CUSE=m CONFIG_OVERLAY_FS=m diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 8b6096753740..d3dd05bbfe23 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -727,6 +727,8 @@ struct kvm_vcpu_arch { #define DBG_SS_ACTIVE_PENDING __vcpu_single_flag(sflags, BIT(5)) /* PMUSERENR for the guest EL0 is on physical CPU */ #define PMUSERENR_ON_CPU __vcpu_single_flag(sflags, BIT(6)) +/* WFI instruction trapped */ +#define IN_WFI __vcpu_single_flag(sflags, BIT(7)) /* Pointer to the vcpu's SVE FFR for sve_{save,load}_state() */ diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h index 8294a9a7e566..929d355eae0a 100644 --- a/arch/arm64/include/asm/kvm_pgtable.h +++ b/arch/arm64/include/asm/kvm_pgtable.h @@ -608,22 +608,26 @@ int kvm_pgtable_stage2_wrprotect(struct kvm_pgtable *pgt, u64 addr, u64 size); kvm_pte_t kvm_pgtable_stage2_mkyoung(struct kvm_pgtable *pgt, u64 addr); /** - * kvm_pgtable_stage2_mkold() - Clear the access flag in a page-table entry. + * kvm_pgtable_stage2_test_clear_young() - Test and optionally clear the access + * flag in a page-table entry. * @pgt: Page-table structure initialised by kvm_pgtable_stage2_init*(). * @addr: Intermediate physical address to identify the page-table entry. + * @size: Size of the address range to visit. + * @mkold: True if the access flag should be cleared. * * The offset of @addr within a page is ignored. * - * If there is a valid, leaf page-table entry used to translate @addr, then - * clear the access flag in that entry. + * Tests and conditionally clears the access flag for every valid, leaf + * page-table entry used to translate the range [@addr, @addr + @size). * * Note that it is the caller's responsibility to invalidate the TLB after * calling this function to ensure that the updated permissions are visible * to the CPUs. * - * Return: The old page-table entry prior to clearing the flag, 0 on failure. + * Return: True if any of the visited PTEs had the access flag set. */ -kvm_pte_t kvm_pgtable_stage2_mkold(struct kvm_pgtable *pgt, u64 addr); +bool kvm_pgtable_stage2_test_clear_young(struct kvm_pgtable *pgt, u64 addr, + u64 size, bool mkold); /** * kvm_pgtable_stage2_relax_perms() - Relax the permissions enforced by a @@ -646,18 +650,6 @@ int kvm_pgtable_stage2_relax_perms(struct kvm_pgtable *pgt, u64 addr, enum kvm_pgtable_prot prot); /** - * kvm_pgtable_stage2_is_young() - Test whether a page-table entry has the - * access flag set. - * @pgt: Page-table structure initialised by kvm_pgtable_stage2_init*(). - * @addr: Intermediate physical address to identify the page-table entry. - * - * The offset of @addr within a page is ignored. - * - * Return: True if the page-table entry has the access flag set, false otherwise. - */ -bool kvm_pgtable_stage2_is_young(struct kvm_pgtable *pgt, u64 addr); - -/** * kvm_pgtable_stage2_flush_range() - Clean and invalidate data cache to Point * of Coherency for guest stage-2 address * range. diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h index 5227db7640c8..261d6e9df2e1 100644 --- a/arch/arm64/include/asm/virt.h +++ b/arch/arm64/include/asm/virt.h @@ -78,6 +78,7 @@ extern u32 __boot_cpu_mode[2]; void __hyp_set_vectors(phys_addr_t phys_vector_base); void __hyp_reset_vectors(void); +bool is_kvm_arm_initialised(void); DECLARE_STATIC_KEY_FALSE(kvm_protected_mode_initialized); diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 7a1aeb95d7c3..520b681a07bb 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -847,6 +847,8 @@ void sve_sync_from_fpsimd_zeropad(struct task_struct *task) int vec_set_vector_length(struct task_struct *task, enum vec_type type, unsigned long vl, unsigned long flags) { + bool free_sme = false; + if (flags & ~(unsigned long)(PR_SVE_VL_INHERIT | PR_SVE_SET_VL_ONEXEC)) return -EINVAL; @@ -897,24 +899,39 @@ int vec_set_vector_length(struct task_struct *task, enum vec_type type, task->thread.fp_type = FP_STATE_FPSIMD; } - if (system_supports_sme() && type == ARM64_VEC_SME) { - task->thread.svcr &= ~(SVCR_SM_MASK | - SVCR_ZA_MASK); - clear_thread_flag(TIF_SME); + if (system_supports_sme()) { + if (type == ARM64_VEC_SME || + !(task->thread.svcr & (SVCR_SM_MASK | SVCR_ZA_MASK))) { + /* + * We are changing the SME VL or weren't using + * SME anyway, discard the state and force a + * reallocation. + */ + task->thread.svcr &= ~(SVCR_SM_MASK | + SVCR_ZA_MASK); + clear_thread_flag(TIF_SME); + free_sme = true; + } } if (task == current) put_cpu_fpsimd_context(); + task_set_vl(task, type, vl); + /* - * Force reallocation of task SVE and SME state to the correct - * size on next use: + * Free the changed states if they are not in use, SME will be + * reallocated to the correct size on next use and we just + * allocate SVE now in case it is needed for use in streaming + * mode. */ - sve_free(task); - if (system_supports_sme() && type == ARM64_VEC_SME) - sme_free(task); + if (system_supports_sve()) { + sve_free(task); + sve_alloc(task, true); + } - task_set_vl(task, type, vl); + if (free_sme) + sme_free(task); out: update_tsk_thread_flag(task, vec_vl_inherit_flag(type), @@ -1649,7 +1666,6 @@ void fpsimd_flush_thread(void) fpsimd_flush_thread_vl(ARM64_VEC_SME); current->thread.svcr = 0; - sme_smstop(); } current->thread.fp_type = FP_STATE_FPSIMD; diff --git a/arch/arm64/kernel/vdso/vgettimeofday.c b/arch/arm64/kernel/vdso/vgettimeofday.c index 4236cf34d7d9..9941c5b04f15 100644 --- a/arch/arm64/kernel/vdso/vgettimeofday.c +++ b/arch/arm64/kernel/vdso/vgettimeofday.c @@ -6,6 +6,10 @@ * */ +int __kernel_clock_gettime(clockid_t clock, struct __kernel_timespec *ts); +int __kernel_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz); +int __kernel_clock_getres(clockid_t clock_id, struct __kernel_timespec *res); + int __kernel_clock_gettime(clockid_t clock, struct __kernel_timespec *ts) { diff --git a/arch/arm64/kvm/arch_timer.c b/arch/arm64/kvm/arch_timer.c index 0696732fa38c..6dcdae4d38cb 100644 --- a/arch/arm64/kvm/arch_timer.c +++ b/arch/arm64/kvm/arch_timer.c @@ -827,8 +827,8 @@ static void timer_set_traps(struct kvm_vcpu *vcpu, struct timer_map *map) assign_clear_set_bit(tpt, CNTHCTL_EL1PCEN << 10, set, clr); assign_clear_set_bit(tpc, CNTHCTL_EL1PCTEN << 10, set, clr); - /* This only happens on VHE, so use the CNTKCTL_EL1 accessor */ - sysreg_clear_set(cntkctl_el1, clr, set); + /* This only happens on VHE, so use the CNTHCTL_EL2 accessor. */ + sysreg_clear_set(cnthctl_el2, clr, set); } void kvm_timer_vcpu_load(struct kvm_vcpu *vcpu) @@ -1563,7 +1563,7 @@ no_vgic: void kvm_timer_init_vhe(void) { if (cpus_have_final_cap(ARM64_HAS_ECV_CNTPOFF)) - sysreg_clear_set(cntkctl_el1, 0, CNTHCTL_ECV); + sysreg_clear_set(cnthctl_el2, 0, CNTHCTL_ECV); } int kvm_arm_timer_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index c2c14059f6a8..72dc53a75d1c 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -53,11 +53,16 @@ DECLARE_KVM_NVHE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params); DECLARE_KVM_NVHE_PER_CPU(struct kvm_cpu_context, kvm_hyp_ctxt); -static bool vgic_present; +static bool vgic_present, kvm_arm_initialised; static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled); DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use); +bool is_kvm_arm_initialised(void) +{ + return kvm_arm_initialised; +} + int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu) { return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE; @@ -713,13 +718,15 @@ void kvm_vcpu_wfi(struct kvm_vcpu *vcpu) */ preempt_disable(); kvm_vgic_vmcr_sync(vcpu); - vgic_v4_put(vcpu, true); + vcpu_set_flag(vcpu, IN_WFI); + vgic_v4_put(vcpu); preempt_enable(); kvm_vcpu_halt(vcpu); vcpu_clear_flag(vcpu, IN_WFIT); preempt_disable(); + vcpu_clear_flag(vcpu, IN_WFI); vgic_v4_load(vcpu); preempt_enable(); } @@ -787,7 +794,7 @@ static int check_vcpu_requests(struct kvm_vcpu *vcpu) if (kvm_check_request(KVM_REQ_RELOAD_GICv4, vcpu)) { /* The distributor enable bits were changed */ preempt_disable(); - vgic_v4_put(vcpu, false); + vgic_v4_put(vcpu); vgic_v4_load(vcpu); preempt_enable(); } @@ -1867,8 +1874,17 @@ static void _kvm_arch_hardware_enable(void *discard) int kvm_arch_hardware_enable(void) { - int was_enabled = __this_cpu_read(kvm_arm_hardware_enabled); + int was_enabled; + + /* + * Most calls to this function are made with migration + * disabled, but not with preemption disabled. The former is + * enough to ensure correctness, but most of the helpers + * expect the later and will throw a tantrum otherwise. + */ + preempt_disable(); + was_enabled = __this_cpu_read(kvm_arm_hardware_enabled); _kvm_arch_hardware_enable(NULL); if (!was_enabled) { @@ -1876,6 +1892,8 @@ int kvm_arch_hardware_enable(void) kvm_timer_cpu_up(); } + preempt_enable(); + return 0; } @@ -2482,6 +2500,8 @@ static __init int kvm_arm_init(void) if (err) goto out_subs; + kvm_arm_initialised = true; + return 0; out_subs: diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S index 8f3f93fa119e..03f97d71984c 100644 --- a/arch/arm64/kvm/hyp/hyp-entry.S +++ b/arch/arm64/kvm/hyp/hyp-entry.S @@ -154,6 +154,12 @@ SYM_CODE_END(\label) esb stp x0, x1, [sp, #-16]! 662: + /* + * spectre vectors __bp_harden_hyp_vecs generate br instructions at runtime + * that jump at offset 8 at __kvm_hyp_vector. + * As hyp .text is guarded section, it needs bti j. + */ + bti j b \target check_preamble_length 661b, 662b @@ -165,6 +171,8 @@ check_preamble_length 661b, 662b nop stp x0, x1, [sp, #-16]! 662: + /* Check valid_vect */ + bti j b \target check_preamble_length 661b, 662b diff --git a/arch/arm64/kvm/hyp/nvhe/host.S b/arch/arm64/kvm/hyp/nvhe/host.S index c87c63133e10..7693a6757cd7 100644 --- a/arch/arm64/kvm/hyp/nvhe/host.S +++ b/arch/arm64/kvm/hyp/nvhe/host.S @@ -297,3 +297,13 @@ SYM_CODE_START(__kvm_hyp_host_forward_smc) ret SYM_CODE_END(__kvm_hyp_host_forward_smc) + +/* + * kvm_host_psci_cpu_entry is called through br instruction, which requires + * bti j instruction as compilers (gcc and llvm) doesn't insert bti j for external + * functions, but bti c instead. + */ +SYM_CODE_START(kvm_host_psci_cpu_entry) + bti j + b __kvm_host_psci_cpu_entry +SYM_CODE_END(kvm_host_psci_cpu_entry) diff --git a/arch/arm64/kvm/hyp/nvhe/psci-relay.c b/arch/arm64/kvm/hyp/nvhe/psci-relay.c index 08508783ec3d..24543d2a3490 100644 --- a/arch/arm64/kvm/hyp/nvhe/psci-relay.c +++ b/arch/arm64/kvm/hyp/nvhe/psci-relay.c @@ -200,7 +200,7 @@ static int psci_system_suspend(u64 func_id, struct kvm_cpu_context *host_ctxt) __hyp_pa(init_params), 0); } -asmlinkage void __noreturn kvm_host_psci_cpu_entry(bool is_cpu_on) +asmlinkage void __noreturn __kvm_host_psci_cpu_entry(bool is_cpu_on) { struct psci_boot_args *boot_args; struct kvm_cpu_context *host_ctxt; diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c index aa740a974e02..f7a93ef29250 100644 --- a/arch/arm64/kvm/hyp/pgtable.c +++ b/arch/arm64/kvm/hyp/pgtable.c @@ -1195,25 +1195,54 @@ kvm_pte_t kvm_pgtable_stage2_mkyoung(struct kvm_pgtable *pgt, u64 addr) return pte; } -kvm_pte_t kvm_pgtable_stage2_mkold(struct kvm_pgtable *pgt, u64 addr) +struct stage2_age_data { + bool mkold; + bool young; +}; + +static int stage2_age_walker(const struct kvm_pgtable_visit_ctx *ctx, + enum kvm_pgtable_walk_flags visit) { - kvm_pte_t pte = 0; - stage2_update_leaf_attrs(pgt, addr, 1, 0, KVM_PTE_LEAF_ATTR_LO_S2_AF, - &pte, NULL, 0); + kvm_pte_t new = ctx->old & ~KVM_PTE_LEAF_ATTR_LO_S2_AF; + struct stage2_age_data *data = ctx->arg; + + if (!kvm_pte_valid(ctx->old) || new == ctx->old) + return 0; + + data->young = true; + + /* + * stage2_age_walker() is always called while holding the MMU lock for + * write, so this will always succeed. Nonetheless, this deliberately + * follows the race detection pattern of the other stage-2 walkers in + * case the locking mechanics of the MMU notifiers is ever changed. + */ + if (data->mkold && !stage2_try_set_pte(ctx, new)) + return -EAGAIN; + /* * "But where's the TLBI?!", you scream. * "Over in the core code", I sigh. * * See the '->clear_flush_young()' callback on the KVM mmu notifier. */ - return pte; + return 0; } -bool kvm_pgtable_stage2_is_young(struct kvm_pgtable *pgt, u64 addr) +bool kvm_pgtable_stage2_test_clear_young(struct kvm_pgtable *pgt, u64 addr, + u64 size, bool mkold) { - kvm_pte_t pte = 0; - stage2_update_leaf_attrs(pgt, addr, 1, 0, 0, &pte, NULL, 0); - return pte & KVM_PTE_LEAF_ATTR_LO_S2_AF; + struct stage2_age_data data = { + .mkold = mkold, + }; + struct kvm_pgtable_walker walker = { + .cb = stage2_age_walker, + .arg = &data, + .flags = KVM_PGTABLE_WALK_LEAF, + }; + + WARN_ON(kvm_pgtable_walk(pgt, addr, size, &walker)); + return data.young; } int kvm_pgtable_stage2_relax_perms(struct kvm_pgtable *pgt, u64 addr, diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index 6db9ef288ec3..d3b4feed460c 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -1756,27 +1756,25 @@ bool kvm_set_spte_gfn(struct kvm *kvm, struct kvm_gfn_range *range) bool kvm_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range) { u64 size = (range->end - range->start) << PAGE_SHIFT; - kvm_pte_t kpte; - pte_t pte; if (!kvm->arch.mmu.pgt) return false; - WARN_ON(size != PAGE_SIZE && size != PMD_SIZE && size != PUD_SIZE); - - kpte = kvm_pgtable_stage2_mkold(kvm->arch.mmu.pgt, - range->start << PAGE_SHIFT); - pte = __pte(kpte); - return pte_valid(pte) && pte_young(pte); + return kvm_pgtable_stage2_test_clear_young(kvm->arch.mmu.pgt, + range->start << PAGE_SHIFT, + size, true); } bool kvm_test_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range) { + u64 size = (range->end - range->start) << PAGE_SHIFT; + if (!kvm->arch.mmu.pgt) return false; - return kvm_pgtable_stage2_is_young(kvm->arch.mmu.pgt, - range->start << PAGE_SHIFT); + return kvm_pgtable_stage2_test_clear_young(kvm->arch.mmu.pgt, + range->start << PAGE_SHIFT, + size, false); } phys_addr_t kvm_mmu_get_httbr(void) diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c index 994a494703c3..6ff3ec18c925 100644 --- a/arch/arm64/kvm/pkvm.c +++ b/arch/arm64/kvm/pkvm.c @@ -244,7 +244,7 @@ static int __init finalize_pkvm(void) { int ret; - if (!is_protected_kvm_enabled()) + if (!is_protected_kvm_enabled() || !is_kvm_arm_initialised()) return 0; /* diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index bd3431823ec5..2ca2973abe66 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -986,7 +986,6 @@ static bool access_pmu_evtyper(struct kvm_vcpu *vcpu, struct sys_reg_params *p, if (p->is_write) { kvm_pmu_set_counter_event_type(vcpu, p->regval, idx); - __vcpu_sys_reg(vcpu, reg) = p->regval & ARMV8_PMU_EVTYPE_MASK; kvm_vcpu_pmu_restore_guest(vcpu); } else { p->regval = __vcpu_sys_reg(vcpu, reg) & ARMV8_PMU_EVTYPE_MASK; @@ -1115,18 +1114,19 @@ static bool access_pmuserenr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, { SYS_DESC(SYS_DBGWCRn_EL1(n)), \ trap_wcr, reset_wcr, 0, 0, get_wcr, set_wcr } -#define PMU_SYS_REG(r) \ - SYS_DESC(r), .reset = reset_pmu_reg, .visibility = pmu_visibility +#define PMU_SYS_REG(name) \ + SYS_DESC(SYS_##name), .reset = reset_pmu_reg, \ + .visibility = pmu_visibility /* Macro to expand the PMEVCNTRn_EL0 register */ #define PMU_PMEVCNTR_EL0(n) \ - { PMU_SYS_REG(SYS_PMEVCNTRn_EL0(n)), \ + { PMU_SYS_REG(PMEVCNTRn_EL0(n)), \ .reset = reset_pmevcntr, .get_user = get_pmu_evcntr, \ .access = access_pmu_evcntr, .reg = (PMEVCNTR0_EL0 + n), } /* Macro to expand the PMEVTYPERn_EL0 register */ #define PMU_PMEVTYPER_EL0(n) \ - { PMU_SYS_REG(SYS_PMEVTYPERn_EL0(n)), \ + { PMU_SYS_REG(PMEVTYPERn_EL0(n)), \ .reset = reset_pmevtyper, \ .access = access_pmu_evtyper, .reg = (PMEVTYPER0_EL0 + n), } @@ -2115,9 +2115,9 @@ static const struct sys_reg_desc sys_reg_descs[] = { { SYS_DESC(SYS_PMBSR_EL1), undef_access }, /* PMBIDR_EL1 is not trapped */ - { PMU_SYS_REG(SYS_PMINTENSET_EL1), + { PMU_SYS_REG(PMINTENSET_EL1), .access = access_pminten, .reg = PMINTENSET_EL1 }, - { PMU_SYS_REG(SYS_PMINTENCLR_EL1), + { PMU_SYS_REG(PMINTENCLR_EL1), .access = access_pminten, .reg = PMINTENSET_EL1 }, { SYS_DESC(SYS_PMMIR_EL1), trap_raz_wi }, @@ -2164,41 +2164,41 @@ static const struct sys_reg_desc sys_reg_descs[] = { { SYS_DESC(SYS_CTR_EL0), access_ctr }, { SYS_DESC(SYS_SVCR), undef_access }, - { PMU_SYS_REG(SYS_PMCR_EL0), .access = access_pmcr, + { PMU_SYS_REG(PMCR_EL0), .access = access_pmcr, .reset = reset_pmcr, .reg = PMCR_EL0 }, - { PMU_SYS_REG(SYS_PMCNTENSET_EL0), + { PMU_SYS_REG(PMCNTENSET_EL0), .access = access_pmcnten, .reg = PMCNTENSET_EL0 }, - { PMU_SYS_REG(SYS_PMCNTENCLR_EL0), + { PMU_SYS_REG(PMCNTENCLR_EL0), .access = access_pmcnten, .reg = PMCNTENSET_EL0 }, - { PMU_SYS_REG(SYS_PMOVSCLR_EL0), + { PMU_SYS_REG(PMOVSCLR_EL0), .access = access_pmovs, .reg = PMOVSSET_EL0 }, /* * PM_SWINC_EL0 is exposed to userspace as RAZ/WI, as it was * previously (and pointlessly) advertised in the past... */ - { PMU_SYS_REG(SYS_PMSWINC_EL0), + { PMU_SYS_REG(PMSWINC_EL0), .get_user = get_raz_reg, .set_user = set_wi_reg, .access = access_pmswinc, .reset = NULL }, - { PMU_SYS_REG(SYS_PMSELR_EL0), + { PMU_SYS_REG(PMSELR_EL0), .access = access_pmselr, .reset = reset_pmselr, .reg = PMSELR_EL0 }, - { PMU_SYS_REG(SYS_PMCEID0_EL0), + { PMU_SYS_REG(PMCEID0_EL0), .access = access_pmceid, .reset = NULL }, - { PMU_SYS_REG(SYS_PMCEID1_EL0), + { PMU_SYS_REG(PMCEID1_EL0), .access = access_pmceid, .reset = NULL }, - { PMU_SYS_REG(SYS_PMCCNTR_EL0), + { PMU_SYS_REG(PMCCNTR_EL0), .access = access_pmu_evcntr, .reset = reset_unknown, .reg = PMCCNTR_EL0, .get_user = get_pmu_evcntr}, - { PMU_SYS_REG(SYS_PMXEVTYPER_EL0), + { PMU_SYS_REG(PMXEVTYPER_EL0), .access = access_pmu_evtyper, .reset = NULL }, - { PMU_SYS_REG(SYS_PMXEVCNTR_EL0), + { PMU_SYS_REG(PMXEVCNTR_EL0), .access = access_pmu_evcntr, .reset = NULL }, /* * PMUSERENR_EL0 resets as unknown in 64bit mode while it resets as zero * in 32bit mode. Here we choose to reset it as zero for consistency. */ - { PMU_SYS_REG(SYS_PMUSERENR_EL0), .access = access_pmuserenr, + { PMU_SYS_REG(PMUSERENR_EL0), .access = access_pmuserenr, .reset = reset_val, .reg = PMUSERENR_EL0, .val = 0 }, - { PMU_SYS_REG(SYS_PMOVSSET_EL0), + { PMU_SYS_REG(PMOVSSET_EL0), .access = access_pmovs, .reg = PMOVSSET_EL0 }, { SYS_DESC(SYS_TPIDR_EL0), NULL, reset_unknown, TPIDR_EL0 }, @@ -2354,7 +2354,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { * PMCCFILTR_EL0 resets as unknown in 64bit mode while it resets as zero * in 32bit mode. Here we choose to reset it as zero for consistency. */ - { PMU_SYS_REG(SYS_PMCCFILTR_EL0), .access = access_pmu_evtyper, + { PMU_SYS_REG(PMCCFILTR_EL0), .access = access_pmu_evtyper, .reset = reset_val, .reg = PMCCFILTR_EL0, .val = 0 }, EL2_REG(VPIDR_EL2, access_rw, reset_unknown, 0), diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c index c3b8e132d599..3dfc8b84e03e 100644 --- a/arch/arm64/kvm/vgic/vgic-v3.c +++ b/arch/arm64/kvm/vgic/vgic-v3.c @@ -749,7 +749,7 @@ void vgic_v3_put(struct kvm_vcpu *vcpu) { struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3; - WARN_ON(vgic_v4_put(vcpu, false)); + WARN_ON(vgic_v4_put(vcpu)); vgic_v3_vmcr_sync(vcpu); diff --git a/arch/arm64/kvm/vgic/vgic-v4.c b/arch/arm64/kvm/vgic/vgic-v4.c index c1c28fe680ba..339a55194b2c 100644 --- a/arch/arm64/kvm/vgic/vgic-v4.c +++ b/arch/arm64/kvm/vgic/vgic-v4.c @@ -336,14 +336,14 @@ void vgic_v4_teardown(struct kvm *kvm) its_vm->vpes = NULL; } -int vgic_v4_put(struct kvm_vcpu *vcpu, bool need_db) +int vgic_v4_put(struct kvm_vcpu *vcpu) { struct its_vpe *vpe = &vcpu->arch.vgic_cpu.vgic_v3.its_vpe; if (!vgic_supports_direct_msis(vcpu->kvm) || !vpe->resident) return 0; - return its_make_vpe_non_resident(vpe, need_db); + return its_make_vpe_non_resident(vpe, !!vcpu_get_flag(vcpu, IN_WFI)); } int vgic_v4_load(struct kvm_vcpu *vcpu) @@ -354,6 +354,9 @@ int vgic_v4_load(struct kvm_vcpu *vcpu) if (!vgic_supports_direct_msis(vcpu->kvm) || vpe->resident) return 0; + if (vcpu_get_flag(vcpu, IN_WFI)) + return 0; + /* * Before making the VPE resident, make sure the redistributor * corresponding to our current CPU expects us here. See the diff --git a/arch/arm64/mm/trans_pgd.c b/arch/arm64/mm/trans_pgd.c index 4ea2eefbc053..e9ad391fc8ea 100644 --- a/arch/arm64/mm/trans_pgd.c +++ b/arch/arm64/mm/trans_pgd.c @@ -24,6 +24,7 @@ #include <linux/bug.h> #include <linux/mm.h> #include <linux/mmzone.h> +#include <linux/kfence.h> static void *trans_alloc(struct trans_pgd_info *info) { @@ -41,7 +42,8 @@ static void _copy_pte(pte_t *dst_ptep, pte_t *src_ptep, unsigned long addr) * the temporary mappings we use during restore. */ set_pte(dst_ptep, pte_mkwrite(pte)); - } else if (debug_pagealloc_enabled() && !pte_none(pte)) { + } else if ((debug_pagealloc_enabled() || + is_kfence_address((void *)addr)) && !pte_none(pte)) { /* * debug_pagealloc will removed the PTE_VALID bit if * the page isn't in use by the resume kernel. It may have diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index 145b540ec34f..ec2174838f2a 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -322,7 +322,13 @@ static int build_prologue(struct jit_ctx *ctx, bool ebpf_from_cbpf) * */ - emit_bti(A64_BTI_C, ctx); + /* bpf function may be invoked by 3 instruction types: + * 1. bl, attached via freplace to bpf prog via short jump + * 2. br, attached via freplace to bpf prog via long jump + * 3. blr, working as a function pointer, used by emit_call. + * So BTI_JC should used here to support both br and blr. + */ + emit_bti(A64_BTI_JC, ctx); emit(A64_MOV(1, A64_R(9), A64_LR), ctx); emit(A64_NOP, ctx); diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg index 1ea4a3dc68f8..65866bf819c3 100644 --- a/arch/arm64/tools/sysreg +++ b/arch/arm64/tools/sysreg @@ -2017,7 +2017,7 @@ Field 0 SM EndSysreg SysregFields HFGxTR_EL2 -Field 63 nAMIAIR2_EL1 +Field 63 nAMAIR2_EL1 Field 62 nMAIR2_EL1 Field 61 nS2POR_EL1 Field 60 nPOR_EL1 @@ -2032,9 +2032,9 @@ Field 52 nGCS_EL0 Res0 51 Field 50 nACCDATA_EL1 Field 49 ERXADDR_EL1 -Field 48 EXRPFGCDN_EL1 -Field 47 EXPFGCTL_EL1 -Field 46 EXPFGF_EL1 +Field 48 ERXPFGCDN_EL1 +Field 47 ERXPFGCTL_EL1 +Field 46 ERXPFGF_EL1 Field 45 ERXMISCn_EL1 Field 44 ERXSTATUS_EL1 Field 43 ERXCTLR_EL1 @@ -2049,8 +2049,8 @@ Field 35 TPIDR_EL0 Field 34 TPIDRRO_EL0 Field 33 TPIDR_EL1 Field 32 TCR_EL1 -Field 31 SCTXNUM_EL0 -Field 30 SCTXNUM_EL1 +Field 31 SCXTNUM_EL0 +Field 30 SCXTNUM_EL1 Field 29 SCTLR_EL1 Field 28 REVIDR_EL1 Field 27 PAR_EL1 diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig index 3e1337aceb37..7cb96db9a25d 100644 --- a/arch/ia64/configs/bigsur_defconfig +++ b/arch/ia64/configs/bigsur_defconfig @@ -77,7 +77,7 @@ CONFIG_EXT3_FS=y CONFIG_XFS_FS=y CONFIG_XFS_QUOTA=y CONFIG_XFS_POSIX_ACL=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_UDF_FS=m diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig index f8033bacea89..4581240013dd 100644 --- a/arch/ia64/configs/generic_defconfig +++ b/arch/ia64/configs/generic_defconfig @@ -146,7 +146,7 @@ CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_UDF_FS=m diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig index ffebe6c503f5..c9e806616544 100644 --- a/arch/ia64/configs/gensparse_defconfig +++ b/arch/ia64/configs/gensparse_defconfig @@ -127,7 +127,7 @@ CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_UDF_FS=m diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig index 45f5d6e2da0a..d7d8fb5c7b71 100644 --- a/arch/ia64/configs/tiger_defconfig +++ b/arch/ia64/configs/tiger_defconfig @@ -110,7 +110,7 @@ CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_UDF_FS=m diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c index 6e948d015332..eb561cc93632 100644 --- a/arch/ia64/kernel/sys_ia64.c +++ b/arch/ia64/kernel/sys_ia64.c @@ -63,7 +63,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len info.low_limit = addr; info.high_limit = TASK_SIZE; info.align_mask = align_mask; - info.align_offset = 0; + info.align_offset = pgoff << PAGE_SHIFT; return vm_unmapped_area(&info); } diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index e55511af4c77..e71d5bf2cee0 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -14,6 +14,7 @@ config LOONGARCH select ARCH_HAS_CPU_FINALIZE_INIT select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS + select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE select ARCH_HAS_PTE_SPECIAL select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_INLINE_READ_LOCK if !PREEMPTION diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index 09ba338a64de..b1e5db51b61c 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -68,6 +68,8 @@ LDFLAGS_vmlinux += -static -n -nostdlib ifdef CONFIG_AS_HAS_EXPLICIT_RELOCS cflags-y += $(call cc-option,-mexplicit-relocs) KBUILD_CFLAGS_KERNEL += $(call cc-option,-mdirect-extern-access) +KBUILD_AFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax) +KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax) else cflags-y += $(call cc-option,-mno-explicit-relocs) KBUILD_AFLAGS_KERNEL += -Wa,-mla-global-with-pcrel @@ -111,7 +113,7 @@ KBUILD_CFLAGS += -isystem $(shell $(CC) -print-file-name=include) KBUILD_LDFLAGS += -m $(ld-emul) -ifdef CONFIG_LOONGARCH +ifdef need-compiler CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \ sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig index 6cd26dd3c134..d64849b4cba1 100644 --- a/arch/loongarch/configs/loongson3_defconfig +++ b/arch/loongarch/configs/loongson3_defconfig @@ -769,7 +769,7 @@ CONFIG_QUOTA=y # CONFIG_PRINT_QUOTA_WARNING is not set CONFIG_QFMT_V1=m CONFIG_QFMT_V2=m -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=m CONFIG_OVERLAY_FS=y CONFIG_OVERLAY_FS_INDEX=y diff --git a/arch/loongarch/include/asm/fpu.h b/arch/loongarch/include/asm/fpu.h index e4193d637f66..b541f6248837 100644 --- a/arch/loongarch/include/asm/fpu.h +++ b/arch/loongarch/include/asm/fpu.h @@ -218,15 +218,8 @@ static inline void restore_lsx(struct task_struct *t) static inline void init_lsx_upper(void) { - /* - * Check cpu_has_lsx only if it's a constant. This will allow the - * compiler to optimise out code for CPUs without LSX without adding - * an extra redundant check for CPUs with LSX. - */ - if (__builtin_constant_p(cpu_has_lsx) && !cpu_has_lsx) - return; - - _init_lsx_upper(); + if (cpu_has_lsx) + _init_lsx_upper(); } static inline void restore_lsx_upper(struct task_struct *t) @@ -294,7 +287,7 @@ static inline void restore_lasx_upper(struct task_struct *t) {} static inline int thread_lsx_context_live(void) { - if (__builtin_constant_p(cpu_has_lsx) && !cpu_has_lsx) + if (!cpu_has_lsx) return 0; return test_thread_flag(TIF_LSX_CTX_LIVE); @@ -302,7 +295,7 @@ static inline int thread_lsx_context_live(void) static inline int thread_lasx_context_live(void) { - if (__builtin_constant_p(cpu_has_lasx) && !cpu_has_lasx) + if (!cpu_has_lasx) return 0; return test_thread_flag(TIF_LASX_CTX_LIVE); diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index 78a00359bde3..9d830ab4e302 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -332,9 +332,25 @@ static void __init bootcmdline_init(char **cmdline_p) strlcat(boot_command_line, " ", COMMAND_LINE_SIZE); strlcat(boot_command_line, init_command_line, COMMAND_LINE_SIZE); + goto out; } #endif + /* + * Append built-in command line to the bootloader command line if + * CONFIG_CMDLINE_EXTEND is enabled. + */ + if (IS_ENABLED(CONFIG_CMDLINE_EXTEND) && CONFIG_CMDLINE[0]) { + strlcat(boot_command_line, " ", COMMAND_LINE_SIZE); + strlcat(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); + } + + /* + * Use built-in command line if the bootloader command line is empty. + */ + if (IS_ENABLED(CONFIG_CMDLINE_BOOTLOADER) && !boot_command_line[0]) + strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); + out: *cmdline_p = boot_command_line; } diff --git a/arch/loongarch/lib/clear_user.S b/arch/loongarch/lib/clear_user.S index fd1d62b244f2..9dcf71719387 100644 --- a/arch/loongarch/lib/clear_user.S +++ b/arch/loongarch/lib/clear_user.S @@ -108,6 +108,7 @@ SYM_FUNC_START(__clear_user_fast) addi.d a3, a2, -8 bgeu a0, a3, .Llt8 15: st.d zero, a0, 0 + addi.d a0, a0, 8 .Llt8: 16: st.d zero, a2, -8 @@ -188,7 +189,7 @@ SYM_FUNC_START(__clear_user_fast) _asm_extable 13b, .L_fixup_handle_0 _asm_extable 14b, .L_fixup_handle_1 _asm_extable 15b, .L_fixup_handle_0 - _asm_extable 16b, .L_fixup_handle_1 + _asm_extable 16b, .L_fixup_handle_0 _asm_extable 17b, .L_fixup_handle_s0 _asm_extable 18b, .L_fixup_handle_s0 _asm_extable 19b, .L_fixup_handle_s0 diff --git a/arch/loongarch/lib/copy_user.S b/arch/loongarch/lib/copy_user.S index b21f6d5d38f5..fecd08cad702 100644 --- a/arch/loongarch/lib/copy_user.S +++ b/arch/loongarch/lib/copy_user.S @@ -136,6 +136,7 @@ SYM_FUNC_START(__copy_user_fast) bgeu a1, a4, .Llt8 30: ld.d t0, a1, 0 31: st.d t0, a0, 0 + addi.d a0, a0, 8 .Llt8: 32: ld.d t0, a3, -8 @@ -246,7 +247,7 @@ SYM_FUNC_START(__copy_user_fast) _asm_extable 30b, .L_fixup_handle_0 _asm_extable 31b, .L_fixup_handle_0 _asm_extable 32b, .L_fixup_handle_0 - _asm_extable 33b, .L_fixup_handle_1 + _asm_extable 33b, .L_fixup_handle_0 _asm_extable 34b, .L_fixup_handle_s0 _asm_extable 35b, .L_fixup_handle_s0 _asm_extable 36b, .L_fixup_handle_s0 diff --git a/arch/loongarch/net/bpf_jit.h b/arch/loongarch/net/bpf_jit.h index c335dc4eed37..68586338ecf8 100644 --- a/arch/loongarch/net/bpf_jit.h +++ b/arch/loongarch/net/bpf_jit.h @@ -150,7 +150,7 @@ static inline void move_imm(struct jit_ctx *ctx, enum loongarch_gpr rd, long imm * no need to call lu32id to do a new filled operation. */ imm_51_31 = (imm >> 31) & 0x1fffff; - if (imm_51_31 != 0 || imm_51_31 != 0x1fffff) { + if (imm_51_31 != 0 && imm_51_31 != 0x1fffff) { /* lu32id rd, imm_51_32 */ imm_51_32 = (imm >> 32) & 0xfffff; emit_insn(ctx, lu32id, rd, imm_51_32); diff --git a/arch/m68k/fpsp040/skeleton.S b/arch/m68k/fpsp040/skeleton.S index 439395aa6fb4..081922c72daa 100644 --- a/arch/m68k/fpsp040/skeleton.S +++ b/arch/m68k/fpsp040/skeleton.S @@ -499,13 +499,13 @@ in_ea: dbf %d0,morein rts - .section .fixup,#alloc,#execinstr + .section .fixup,"ax" .even 1: jbsr fpsp040_die jbra .Lnotkern - .section __ex_table,#alloc + .section __ex_table,"a" .align 4 .long in_ea,1b diff --git a/arch/m68k/ifpsp060/os.S b/arch/m68k/ifpsp060/os.S index 7a0d6e428066..89e2ec224ab6 100644 --- a/arch/m68k/ifpsp060/os.S +++ b/arch/m68k/ifpsp060/os.S @@ -379,11 +379,11 @@ _060_real_access: | Execption handling for movs access to illegal memory - .section .fixup,#alloc,#execinstr + .section .fixup,"ax" .even 1: moveq #-1,%d1 rts -.section __ex_table,#alloc +.section __ex_table,"a" .align 4 .long dmrbuae,1b .long dmrwuae,1b diff --git a/arch/m68k/kernel/relocate_kernel.S b/arch/m68k/kernel/relocate_kernel.S index ab0f1e7d4653..f7667079e08e 100644 --- a/arch/m68k/kernel/relocate_kernel.S +++ b/arch/m68k/kernel/relocate_kernel.S @@ -26,7 +26,7 @@ ENTRY(relocate_new_kernel) lea %pc@(.Lcopy),%a4 2: addl #0x00000000,%a4 /* virt_to_phys() */ - .section ".m68k_fixup","aw" + .section .m68k_fixup,"aw" .long M68K_FIXUP_MEMOFFSET, 2b+2 .previous @@ -49,7 +49,7 @@ ENTRY(relocate_new_kernel) lea %pc@(.Lcont040),%a4 5: addl #0x00000000,%a4 /* virt_to_phys() */ - .section ".m68k_fixup","aw" + .section .m68k_fixup,"aw" .long M68K_FIXUP_MEMOFFSET, 5b+2 .previous diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig index b0cbfa781ffc..e463a9acae03 100644 --- a/arch/mips/configs/bigsur_defconfig +++ b/arch/mips/configs/bigsur_defconfig @@ -153,7 +153,7 @@ CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y # CONFIG_PRINT_QUOTA_WARNING is not set CONFIG_QFMT_V2=m -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig index 5458573286a2..1843468f84a3 100644 --- a/arch/mips/configs/fuloong2e_defconfig +++ b/arch/mips/configs/fuloong2e_defconfig @@ -178,7 +178,7 @@ CONFIG_EXT3_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y CONFIG_REISERFS_FS=m -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=y CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig index 897e55579af0..44821f497261 100644 --- a/arch/mips/configs/ip22_defconfig +++ b/arch/mips/configs/ip22_defconfig @@ -245,7 +245,7 @@ CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y # CONFIG_PRINT_QUOTA_WARNING is not set CONFIG_QFMT_V2=m -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig index 418a4181e2fe..930c5f6ed182 100644 --- a/arch/mips/configs/ip32_defconfig +++ b/arch/mips/configs/ip32_defconfig @@ -95,7 +95,7 @@ CONFIG_EXT3_FS_SECURITY=y CONFIG_QUOTA=y CONFIG_QFMT_V1=m CONFIG_QFMT_V2=m -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig index 6b5d7e963ed9..fdf374574105 100644 --- a/arch/mips/configs/jazz_defconfig +++ b/arch/mips/configs/jazz_defconfig @@ -76,7 +76,7 @@ CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=m CONFIG_XFS_QUOTA=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig index 7e598d338979..83d9a8ff4270 100644 --- a/arch/mips/configs/lemote2f_defconfig +++ b/arch/mips/configs/lemote2f_defconfig @@ -240,7 +240,7 @@ CONFIG_XFS_POSIX_ACL=y CONFIG_BTRFS_FS=m CONFIG_QUOTA=y CONFIG_QFMT_V2=m -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FSCACHE=m CONFIG_CACHEFILES=m CONFIG_ISO9660_FS=m diff --git a/arch/mips/configs/loongson2k_defconfig b/arch/mips/configs/loongson2k_defconfig index 0ab029ecad21..ec3ee8df737d 100644 --- a/arch/mips/configs/loongson2k_defconfig +++ b/arch/mips/configs/loongson2k_defconfig @@ -296,7 +296,7 @@ CONFIG_XFS_QUOTA=y CONFIG_XFS_POSIX_ACL=y CONFIG_QUOTA=y # CONFIG_PRINT_QUOTA_WARNING is not set -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 3087e64e6ebe..129426351237 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -352,7 +352,7 @@ CONFIG_QUOTA=y # CONFIG_PRINT_QUOTA_WARNING is not set CONFIG_QFMT_V1=m CONFIG_QFMT_V2=m -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=m CONFIG_VIRTIO_FS=m CONFIG_FSCACHE=m diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig index b64172179160..935585d8bb26 100644 --- a/arch/mips/configs/mtx1_defconfig +++ b/arch/mips/configs/mtx1_defconfig @@ -601,7 +601,7 @@ CONFIG_EXT3_FS=m CONFIG_EXT3_FS_POSIX_ACL=y CONFIG_EXT3_FS_SECURITY=y CONFIG_QUOTA=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/mips/configs/pic32mzda_defconfig b/arch/mips/configs/pic32mzda_defconfig index 8397f28355d5..0e494c24246f 100644 --- a/arch/mips/configs/pic32mzda_defconfig +++ b/arch/mips/configs/pic32mzda_defconfig @@ -66,7 +66,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_FSCACHE=m CONFIG_ISO9660_FS=m diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig index 7475c2cbea89..e0e312dd968a 100644 --- a/arch/mips/configs/rm200_defconfig +++ b/arch/mips/configs/rm200_defconfig @@ -317,7 +317,7 @@ CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y CONFIG_XFS_FS=m CONFIG_XFS_QUOTA=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig index 9651f4390029..ee4febb30386 100644 --- a/arch/parisc/configs/generic-32bit_defconfig +++ b/arch/parisc/configs/generic-32bit_defconfig @@ -237,7 +237,7 @@ CONFIG_EXT3_FS_SECURITY=y CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y CONFIG_QFMT_V2=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_VFAT_FS=y diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig index 6758c030b09d..f6ded7147b4d 100644 --- a/arch/parisc/configs/generic-64bit_defconfig +++ b/arch/parisc/configs/generic-64bit_defconfig @@ -259,7 +259,7 @@ CONFIG_BTRFS_FS=m CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y CONFIG_QFMT_V2=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_FUSE_FS=y CONFIG_CUSE=y CONFIG_ISO9660_FS=y diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 9915062d5243..ca2d537e25b1 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -27,12 +27,17 @@ #include <linux/elf-randomize.h> /* - * Construct an artificial page offset for the mapping based on the physical + * Construct an artificial page offset for the mapping based on the virtual * address of the kernel file mapping variable. + * If filp is zero the calculated pgoff value aliases the memory of the given + * address. This is useful for io_uring where the mapping shall alias a kernel + * address and a userspace adress where both the kernel and the userspace + * access the same memory region. */ -#define GET_FILP_PGOFF(filp) \ - (filp ? (((unsigned long) filp->f_mapping) >> 8) \ - & ((SHM_COLOUR-1) >> PAGE_SHIFT) : 0UL) +#define GET_FILP_PGOFF(filp, addr) \ + ((filp ? (((unsigned long) filp->f_mapping) >> 8) \ + & ((SHM_COLOUR-1) >> PAGE_SHIFT) : 0UL) \ + + (addr >> PAGE_SHIFT)) static unsigned long shared_align_offset(unsigned long filp_pgoff, unsigned long pgoff) @@ -112,7 +117,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, do_color_align = 0; if (filp || (flags & MAP_SHARED)) do_color_align = 1; - filp_pgoff = GET_FILP_PGOFF(filp); + filp_pgoff = GET_FILP_PGOFF(filp, addr); if (flags & MAP_FIXED) { /* Even MAP_FIXED mappings must reside within TASK_SIZE */ diff --git a/arch/powerpc/configs/44x/sam440ep_defconfig b/arch/powerpc/configs/44x/sam440ep_defconfig index ef09786d49b9..51499ee6366b 100644 --- a/arch/powerpc/configs/44x/sam440ep_defconfig +++ b/arch/powerpc/configs/44x/sam440ep_defconfig @@ -79,7 +79,7 @@ CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_REISERFS_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_ZISOFS=y diff --git a/arch/powerpc/configs/85xx/stx_gp3_defconfig b/arch/powerpc/configs/85xx/stx_gp3_defconfig index ecbcc853307d..e7080497048d 100644 --- a/arch/powerpc/configs/85xx/stx_gp3_defconfig +++ b/arch/powerpc/configs/85xx/stx_gp3_defconfig @@ -50,7 +50,7 @@ CONFIG_DRM=m CONFIG_SOUND=m CONFIG_EXT2_FS=y CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=m CONFIG_UDF_FS=m CONFIG_MSDOS_FS=m diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig index 06391cc2af3a..53f43a34e1a9 100644 --- a/arch/powerpc/configs/cell_defconfig +++ b/arch/powerpc/configs/cell_defconfig @@ -172,7 +172,7 @@ CONFIG_EDAC_CELL=y CONFIG_UIO=m CONFIG_EXT2_FS=y CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_UDF_FS=m diff --git a/arch/powerpc/configs/ep8248e_defconfig b/arch/powerpc/configs/ep8248e_defconfig index b9dfa3a0713b..0d8d3f41f194 100644 --- a/arch/powerpc/configs/ep8248e_defconfig +++ b/arch/powerpc/configs/ep8248e_defconfig @@ -47,7 +47,7 @@ CONFIG_SERIAL_CPM_CONSOLE=y # CONFIG_USB_SUPPORT is not set CONFIG_EXT2_FS=y CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_CRAMFS=y diff --git a/arch/powerpc/configs/mgcoge_defconfig b/arch/powerpc/configs/mgcoge_defconfig index ce220ceeb91c..2101bfe6db94 100644 --- a/arch/powerpc/configs/mgcoge_defconfig +++ b/arch/powerpc/configs/mgcoge_defconfig @@ -60,7 +60,7 @@ CONFIG_USB_FSL_USB2=y CONFIG_USB_G_SERIAL=y CONFIG_UIO=y CONFIG_EXT2_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig index 96aa5355911f..61993944db40 100644 --- a/arch/powerpc/configs/pasemi_defconfig +++ b/arch/powerpc/configs/pasemi_defconfig @@ -143,7 +143,7 @@ CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT4_FS=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=y CONFIG_UDF_FS=y CONFIG_MSDOS_FS=y diff --git a/arch/powerpc/configs/pmac32_defconfig b/arch/powerpc/configs/pmac32_defconfig index 019163c2571e..05ed58576464 100644 --- a/arch/powerpc/configs/pmac32_defconfig +++ b/arch/powerpc/configs/pmac32_defconfig @@ -254,7 +254,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y CONFIG_EXT2_FS=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=y CONFIG_JOLIET=y diff --git a/arch/powerpc/configs/powernv_defconfig b/arch/powerpc/configs/powernv_defconfig index e02ab94a09bf..ee84ade7a033 100644 --- a/arch/powerpc/configs/powernv_defconfig +++ b/arch/powerpc/configs/powernv_defconfig @@ -270,7 +270,7 @@ CONFIG_BTRFS_FS=m CONFIG_BTRFS_FS_POSIX_ACL=y CONFIG_NILFS2_FS=m CONFIG_FANOTIFY=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_OVERLAY_FS=m CONFIG_ISO9660_FS=y diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index 268fa361a06d..c0f4bbc2c975 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -327,7 +327,7 @@ CONFIG_BTRFS_FS=m CONFIG_BTRFS_FS_POSIX_ACL=y CONFIG_NILFS2_FS=m CONFIG_FS_DAX=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_OVERLAY_FS=m CONFIG_ISO9660_FS=y diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig index 776c32964e12..624c371ffcc3 100644 --- a/arch/powerpc/configs/ppc64e_defconfig +++ b/arch/powerpc/configs/ppc64e_defconfig @@ -185,7 +185,7 @@ CONFIG_JFS_SECURITY=y CONFIG_XFS_FS=m CONFIG_XFS_POSIX_ACL=y CONFIG_FS_DAX=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=y CONFIG_UDF_FS=m CONFIG_MSDOS_FS=y diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig index f21170b8fa11..1034aeabdd6c 100644 --- a/arch/powerpc/configs/ppc6xx_defconfig +++ b/arch/powerpc/configs/ppc6xx_defconfig @@ -969,7 +969,7 @@ CONFIG_XFS_POSIX_ACL=y CONFIG_GFS2_FS=m CONFIG_FS_DAX=y CONFIG_QUOTA_NETLINK_INTERFACE=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=y CONFIG_JOLIET=y diff --git a/arch/powerpc/configs/ps3_defconfig b/arch/powerpc/configs/ps3_defconfig index ea3ee0719bb2..1ea732c19235 100644 --- a/arch/powerpc/configs/ps3_defconfig +++ b/arch/powerpc/configs/ps3_defconfig @@ -129,7 +129,7 @@ CONFIG_EXT2_FS=m CONFIG_EXT4_FS=y CONFIG_QUOTA=y CONFIG_QFMT_V2=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_UDF_FS=m diff --git a/arch/powerpc/crypto/.gitignore b/arch/powerpc/crypto/.gitignore new file mode 100644 index 000000000000..e1094f08f713 --- /dev/null +++ b/arch/powerpc/crypto/.gitignore @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only +aesp10-ppc.S +ghashp10-ppc.S diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h index ef42adb44aa3..00c6b0b4ede4 100644 --- a/arch/powerpc/include/asm/bug.h +++ b/arch/powerpc/include/asm/bug.h @@ -4,14 +4,13 @@ #ifdef __KERNEL__ #include <asm/asm-compat.h> -#include <asm/extable.h> #ifdef CONFIG_BUG #ifdef __ASSEMBLY__ #include <asm/asm-offsets.h> #ifdef CONFIG_DEBUG_BUGVERBOSE -.macro __EMIT_BUG_ENTRY addr,file,line,flags +.macro EMIT_BUG_ENTRY addr,file,line,flags .section __bug_table,"aw" 5001: .4byte \addr - . .4byte 5002f - . @@ -23,7 +22,7 @@ .previous .endm #else -.macro __EMIT_BUG_ENTRY addr,file,line,flags +.macro EMIT_BUG_ENTRY addr,file,line,flags .section __bug_table,"aw" 5001: .4byte \addr - . .short \flags @@ -32,18 +31,6 @@ .endm #endif /* verbose */ -.macro EMIT_WARN_ENTRY addr,file,line,flags - EX_TABLE(\addr,\addr+4) - __EMIT_BUG_ENTRY \addr,\file,\line,\flags -.endm - -.macro EMIT_BUG_ENTRY addr,file,line,flags - .if \flags & 1 /* BUGFLAG_WARNING */ - .err /* Use EMIT_WARN_ENTRY for warnings */ - .endif - __EMIT_BUG_ENTRY \addr,\file,\line,\flags -.endm - #else /* !__ASSEMBLY__ */ /* _EMIT_BUG_ENTRY expects args %0,%1,%2,%3 to be FILE, LINE, flags and sizeof(struct bug_entry), respectively */ @@ -73,16 +60,6 @@ "i" (sizeof(struct bug_entry)), \ ##__VA_ARGS__) -#define WARN_ENTRY(insn, flags, label, ...) \ - asm_volatile_goto( \ - "1: " insn "\n" \ - EX_TABLE(1b, %l[label]) \ - _EMIT_BUG_ENTRY \ - : : "i" (__FILE__), "i" (__LINE__), \ - "i" (flags), \ - "i" (sizeof(struct bug_entry)), \ - ##__VA_ARGS__ : : label) - /* * BUG_ON() and WARN_ON() do their best to cooperate with compile-time * optimisations. However depending on the complexity of the condition @@ -95,16 +72,7 @@ } while (0) #define HAVE_ARCH_BUG -#define __WARN_FLAGS(flags) do { \ - __label__ __label_warn_on; \ - \ - WARN_ENTRY("twi 31, 0, 0", BUGFLAG_WARNING | (flags), __label_warn_on); \ - barrier_before_unreachable(); \ - __builtin_unreachable(); \ - \ -__label_warn_on: \ - break; \ -} while (0) +#define __WARN_FLAGS(flags) BUG_ENTRY("twi 31, 0, 0", BUGFLAG_WARNING | (flags)) #ifdef CONFIG_PPC64 #define BUG_ON(x) do { \ @@ -117,25 +85,15 @@ __label_warn_on: \ } while (0) #define WARN_ON(x) ({ \ - bool __ret_warn_on = false; \ - do { \ - if (__builtin_constant_p((x))) { \ - if (!(x)) \ - break; \ + int __ret_warn_on = !!(x); \ + if (__builtin_constant_p(__ret_warn_on)) { \ + if (__ret_warn_on) \ __WARN(); \ - __ret_warn_on = true; \ - } else { \ - __label__ __label_warn_on; \ - \ - WARN_ENTRY(PPC_TLNEI " %4, 0", \ - BUGFLAG_WARNING | BUGFLAG_TAINT(TAINT_WARN), \ - __label_warn_on, \ - "r" ((__force long)(x))); \ - break; \ -__label_warn_on: \ - __ret_warn_on = true; \ - } \ - } while (0); \ + } else { \ + BUG_ENTRY(PPC_TLNEI " %4, 0", \ + BUGFLAG_WARNING | BUGFLAG_TAINT(TAINT_WARN), \ + "r" (__ret_warn_on)); \ + } \ unlikely(__ret_warn_on); \ }) @@ -148,14 +106,13 @@ __label_warn_on: \ #ifdef __ASSEMBLY__ .macro EMIT_BUG_ENTRY addr,file,line,flags .endm -.macro EMIT_WARN_ENTRY addr,file,line,flags -.endm #else /* !__ASSEMBLY__ */ #define _EMIT_BUG_ENTRY -#define _EMIT_WARN_ENTRY #endif #endif /* CONFIG_BUG */ +#define EMIT_WARN_ENTRY EMIT_BUG_ENTRY + #include <asm-generic/bug.h> #ifndef __ASSEMBLY__ diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h index a26ca097d032..79f1c480b5eb 100644 --- a/arch/powerpc/include/asm/elf.h +++ b/arch/powerpc/include/asm/elf.h @@ -12,14 +12,8 @@ /* * This is used to ensure we don't load something for the wrong architecture. - * 64le only supports ELFv2 64-bit binaries (64be supports v1 and v2). */ -#if defined(CONFIG_PPC64) && defined(CONFIG_CPU_LITTLE_ENDIAN) -#define elf_check_arch(x) (((x)->e_machine == ELF_ARCH) && \ - (((x)->e_flags & 0x3) == 0x2)) -#else #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) -#endif #define compat_elf_check_arch(x) ((x)->e_machine == EM_PPC) #define CORE_DUMP_USE_REGSET diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index bc5d39a835fe..bf5dde1a4114 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -183,13 +183,9 @@ static inline bool test_thread_local_flags(unsigned int flags) #define clear_tsk_compat_task(tsk) do { } while (0) #endif -#ifdef CONFIG_PPC64 -#ifdef CONFIG_CPU_BIG_ENDIAN +#if defined(CONFIG_PPC64) #define is_elf2_task() (test_thread_flag(TIF_ELF2ABI)) #else -#define is_elf2_task() (1) -#endif -#else #define is_elf2_task() (0) #endif diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index e59ec6d32d37..7ef147e2a20d 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -1508,13 +1508,8 @@ static void do_program_check(struct pt_regs *regs) if (!(regs->msr & MSR_PR) && /* not user-mode */ report_bug(bugaddr, regs) == BUG_TRAP_TYPE_WARN) { - const struct exception_table_entry *entry; - - entry = search_exception_tables(bugaddr); - if (entry) { - regs_set_return_ip(regs, extable_fixup(entry) + regs->nip - bugaddr); - return; - } + regs_add_return_ip(regs, 4); + return; } if (cpu_has_feature(CPU_FTR_DEXCR_NPHIE) && user_mode(regs)) { diff --git a/arch/powerpc/mm/kasan/Makefile b/arch/powerpc/mm/kasan/Makefile index 699eeffd9f55..f9522fd70b2f 100644 --- a/arch/powerpc/mm/kasan/Makefile +++ b/arch/powerpc/mm/kasan/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 KASAN_SANITIZE := n +KCOV_INSTRUMENT := n obj-$(CONFIG_PPC32) += init_32.o obj-$(CONFIG_PPC_8xx) += 8xx.o diff --git a/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c b/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c index 1bfb29574caa..c1e981649bd9 100644 --- a/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c +++ b/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c @@ -477,7 +477,7 @@ static int mpc512x_lpbfifo_probe(struct platform_device *pdev) return ret; } -static int mpc512x_lpbfifo_remove(struct platform_device *pdev) +static void mpc512x_lpbfifo_remove(struct platform_device *pdev) { unsigned long flags; struct dma_device *dma_dev = lpbfifo.chan->device; @@ -494,8 +494,6 @@ static int mpc512x_lpbfifo_remove(struct platform_device *pdev) free_irq(lpbfifo.irq, &pdev->dev); irq_dispose_mapping(lpbfifo.irq); dma_release_channel(lpbfifo.chan); - - return 0; } static const struct of_device_id mpc512x_lpbfifo_match[] = { @@ -506,7 +504,7 @@ MODULE_DEVICE_TABLE(of, mpc512x_lpbfifo_match); static struct platform_driver mpc512x_lpbfifo_driver = { .probe = mpc512x_lpbfifo_probe, - .remove = mpc512x_lpbfifo_remove, + .remove_new = mpc512x_lpbfifo_remove, .driver = { .name = DRV_NAME, .of_match_table = mpc512x_lpbfifo_match, diff --git a/arch/powerpc/platforms/pseries/vas.c b/arch/powerpc/platforms/pseries/vas.c index 9a44a98ba342..3fbc2a6aa319 100644 --- a/arch/powerpc/platforms/pseries/vas.c +++ b/arch/powerpc/platforms/pseries/vas.c @@ -744,6 +744,12 @@ static int reconfig_close_windows(struct vas_caps *vcap, int excess_creds, } task_ref = &win->vas_win.task_ref; + /* + * VAS mmap (coproc_mmap()) and its fault handler + * (vas_mmap_fault()) are called after holding mmap lock. + * So hold mmap mutex after mmap_lock to avoid deadlock. + */ + mmap_write_lock(task_ref->mm); mutex_lock(&task_ref->mmap_mutex); vma = task_ref->vma; /* @@ -752,7 +758,6 @@ static int reconfig_close_windows(struct vas_caps *vcap, int excess_creds, */ win->vas_win.status |= flag; - mmap_write_lock(task_ref->mm); /* * vma is set in the original mapping. But this mapping * is done with mmap() after the window is opened with ioctl. @@ -762,8 +767,8 @@ static int reconfig_close_windows(struct vas_caps *vcap, int excess_creds, if (vma) zap_vma_pages(vma); - mmap_write_unlock(task_ref->mm); mutex_unlock(&task_ref->mmap_mutex); + mmap_write_unlock(task_ref->mm); /* * Close VAS window in the hypervisor, but do not * free vas_window struct since it may be reused diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index 0a0107460a5c..ab86ec3b9eab 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -192,7 +192,7 @@ CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y CONFIG_BTRFS_FS=m CONFIG_BTRFS_FS_POSIX_ACL=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_OVERLAY_FS=m CONFIG_ISO9660_FS=y CONFIG_JOLIET=y diff --git a/arch/riscv/configs/rv32_defconfig b/arch/riscv/configs/rv32_defconfig index 38760e4296cf..89b601e253a6 100644 --- a/arch/riscv/configs/rv32_defconfig +++ b/arch/riscv/configs/rv32_defconfig @@ -98,7 +98,7 @@ CONFIG_RPMSG_CTRL=y CONFIG_RPMSG_VIRTIO=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig index aa95cf6dfabb..d03d4cb9332c 100644 --- a/arch/s390/configs/debug_defconfig +++ b/arch/s390/configs/debug_defconfig @@ -624,7 +624,7 @@ CONFIG_QUOTA_NETLINK_INTERFACE=y CONFIG_QUOTA_DEBUG=y CONFIG_QFMT_V1=m CONFIG_QFMT_V2=m -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=y CONFIG_CUSE=m CONFIG_VIRTIO_FS=m diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig index f041945f9148..1855759cdc6a 100644 --- a/arch/s390/configs/defconfig +++ b/arch/s390/configs/defconfig @@ -609,7 +609,7 @@ CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y CONFIG_QUOTA_NETLINK_INTERFACE=y CONFIG_QFMT_V1=m CONFIG_QFMT_V2=m -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=y CONFIG_CUSE=m CONFIG_VIRTIO_FS=m diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c index d29a9d908797..38349150c96e 100644 --- a/arch/s390/crypto/paes_s390.c +++ b/arch/s390/crypto/paes_s390.c @@ -103,7 +103,7 @@ static inline void _free_kb_keybuf(struct key_blob *kb) { if (kb->key && kb->key != kb->keybuf && kb->keylen > sizeof(kb->keybuf)) { - kfree(kb->key); + kfree_sensitive(kb->key); kb->key = NULL; } } diff --git a/arch/s390/kvm/pv.c b/arch/s390/kvm/pv.c index 2f34c7c3c5ab..bf1fdc7bf89e 100644 --- a/arch/s390/kvm/pv.c +++ b/arch/s390/kvm/pv.c @@ -411,8 +411,12 @@ int kvm_s390_pv_deinit_cleanup_all(struct kvm *kvm, u16 *rc, u16 *rrc) u16 _rc, _rrc; int cc = 0; - /* Make sure the counter does not reach 0 before calling s390_uv_destroy_range */ - atomic_inc(&kvm->mm->context.protected_count); + /* + * Nothing to do if the counter was already 0. Otherwise make sure + * the counter does not reach 0 before calling s390_uv_destroy_range. + */ + if (!atomic_inc_not_zero(&kvm->mm->context.protected_count)) + return 0; *rc = 1; /* If the current VM is protected, destroy it */ diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index dbe8394234e2..2f123429a291 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -421,6 +421,8 @@ static inline vm_fault_t do_exception(struct pt_regs *regs, int access) vma_end_read(vma); if (!(fault & VM_FAULT_RETRY)) { count_vm_vma_lock_event(VMA_LOCK_SUCCESS); + if (likely(!(fault & VM_FAULT_ERROR))) + fault = 0; goto out; } count_vm_vma_lock_event(VMA_LOCK_RETRY); diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index 989ebd0912b4..9c8af31be970 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -2853,6 +2853,7 @@ int s390_replace_asce(struct gmap *gmap) page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); if (!page) return -ENOMEM; + page->index = 0; table = page_to_virt(page); memcpy(table, gmap->table, 1UL << (CRST_ALLOC_ORDER + PAGE_SHIFT)); diff --git a/arch/sh/configs/espt_defconfig b/arch/sh/configs/espt_defconfig index 623012d9af9d..67716a44463e 100644 --- a/arch/sh/configs/espt_defconfig +++ b/arch/sh/configs/espt_defconfig @@ -61,7 +61,7 @@ CONFIG_USB_STORAGE=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_TMPFS_POSIX_ACL=y diff --git a/arch/sh/configs/sdk7780_defconfig b/arch/sh/configs/sdk7780_defconfig index 41cb588ca99c..cd24cf08210e 100644 --- a/arch/sh/configs/sdk7780_defconfig +++ b/arch/sh/configs/sdk7780_defconfig @@ -105,7 +105,7 @@ CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y diff --git a/arch/sh/configs/sdk7786_defconfig b/arch/sh/configs/sdk7786_defconfig index a080c5d05a7b..cf59b98446e4 100644 --- a/arch/sh/configs/sdk7786_defconfig +++ b/arch/sh/configs/sdk7786_defconfig @@ -168,7 +168,7 @@ CONFIG_EXT3_FS=y CONFIG_EXT4_FS=y CONFIG_XFS_FS=y CONFIG_BTRFS_FS=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=y CONFIG_CUSE=m CONFIG_FSCACHE=m diff --git a/arch/sh/configs/sh03_defconfig b/arch/sh/configs/sh03_defconfig index f661ef816f09..48f38ec236b6 100644 --- a/arch/sh/configs/sh03_defconfig +++ b/arch/sh/configs/sh03_defconfig @@ -60,7 +60,7 @@ CONFIG_EXT2_FS_XATTR=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_ZISOFS=y diff --git a/arch/sh/configs/sh7763rdp_defconfig b/arch/sh/configs/sh7763rdp_defconfig index ae726745d9a0..57923c3296cc 100644 --- a/arch/sh/configs/sh7763rdp_defconfig +++ b/arch/sh/configs/sh7763rdp_defconfig @@ -63,7 +63,7 @@ CONFIG_MMC=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig index 7c489e7f19b7..5010164de3e4 100644 --- a/arch/sparc/configs/sparc32_defconfig +++ b/arch/sparc/configs/sparc32_defconfig @@ -65,7 +65,7 @@ CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=m CONFIG_PROC_KCORE=y CONFIG_ROMFS_FS=m diff --git a/arch/um/configs/i386_defconfig b/arch/um/configs/i386_defconfig index 05ae535ba0dc..630be793759e 100644 --- a/arch/um/configs/i386_defconfig +++ b/arch/um/configs/i386_defconfig @@ -62,7 +62,7 @@ CONFIG_UML_NET_SLIRP=y CONFIG_EXT4_FS=y CONFIG_REISERFS_FS=y CONFIG_QUOTA=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_PROC_KCORE=y diff --git a/arch/um/configs/x86_64_defconfig b/arch/um/configs/x86_64_defconfig index 1c757238be7f..8540d3370272 100644 --- a/arch/um/configs/x86_64_defconfig +++ b/arch/um/configs/x86_64_defconfig @@ -60,7 +60,7 @@ CONFIG_UML_NET_SLIRP=y CONFIG_EXT4_FS=y CONFIG_REISERFS_FS=y CONFIG_QUOTA=y -CONFIG_AUTOFS4_FS=m +CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_PROC_KCORE=y diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index 37d60e72cf26..9e71794839e8 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c @@ -3,7 +3,6 @@ * Copyright (C) 2002 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com) */ -#include <linux/minmax.h> #include <unistd.h> #include <errno.h> #include <fcntl.h> @@ -51,7 +50,7 @@ static struct pollfds all_sigio_fds; static int write_sigio_thread(void *unused) { - struct pollfds *fds; + struct pollfds *fds, tmp; struct pollfd *p; int i, n, respond_fd; char c; @@ -78,7 +77,9 @@ static int write_sigio_thread(void *unused) "write_sigio_thread : " "read on socket failed, " "err = %d\n", errno); - swap(current_poll, next_poll); + tmp = current_poll; + current_poll = next_poll; + next_poll = tmp; respond_fd = sigio_private[1]; } else { diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig index 3cf34912abfe..75a343f10e58 100644 --- a/arch/x86/configs/i386_defconfig +++ b/arch/x86/configs/i386_defconfig @@ -245,7 +245,7 @@ CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y # CONFIG_PRINT_QUOTA_WARNING is not set CONFIG_QFMT_V2=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_ZISOFS=y diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig index 27759236fd60..0902518e9b93 100644 --- a/arch/x86/configs/x86_64_defconfig +++ b/arch/x86/configs/x86_64_defconfig @@ -242,7 +242,7 @@ CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y # CONFIG_PRINT_QUOTA_WARNING is not set CONFIG_QFMT_V2=y -CONFIG_AUTOFS4_FS=y +CONFIG_AUTOFS_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_ZISOFS=y diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index 91f6818884fa..43606de22511 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -285,7 +285,15 @@ SYM_FUNC_END(__switch_to_asm) */ .pushsection .text, "ax" SYM_CODE_START(ret_from_fork_asm) - UNWIND_HINT_REGS + /* + * This is the start of the kernel stack; even through there's a + * register set at the top, the regset isn't necessarily coherent + * (consider kthreads) and one cannot unwind further. + * + * This ensures stack unwinds of kernel threads terminate in a known + * good state. + */ + UNWIND_HINT_END_OF_STACK ANNOTATE_NOENDBR // copy_thread CALL_DEPTH_ACCOUNT @@ -295,6 +303,12 @@ SYM_CODE_START(ret_from_fork_asm) movq %r12, %rcx /* fn_arg */ call ret_from_fork + /* + * Set the stack state to what is expected for the target function + * -- at this point the register set should be a valid user set + * and unwind should work normally. + */ + UNWIND_HINT_REGS jmp swapgs_restore_regs_and_return_to_usermode SYM_CODE_END(ret_from_fork_asm) .popsection diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h index 13bc212cd4bc..e3054e3e46d5 100644 --- a/arch/x86/include/asm/kvm-x86-ops.h +++ b/arch/x86/include/asm/kvm-x86-ops.h @@ -37,6 +37,7 @@ KVM_X86_OP(get_segment) KVM_X86_OP(get_cpl) KVM_X86_OP(set_segment) KVM_X86_OP(get_cs_db_l_bits) +KVM_X86_OP(is_valid_cr0) KVM_X86_OP(set_cr0) KVM_X86_OP_OPTIONAL(post_set_cr3) KVM_X86_OP(is_valid_cr4) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 28bd38303d70..3bc146dfd38d 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1566,9 +1566,10 @@ struct kvm_x86_ops { void (*set_segment)(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg); void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l); + bool (*is_valid_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0); void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0); void (*post_set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); - bool (*is_valid_cr4)(struct kvm_vcpu *vcpu, unsigned long cr0); + bool (*is_valid_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4); void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4); int (*set_efer)(struct kvm_vcpu *vcpu, u64 efer); void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h index 320566a0443d..66dbba181bd9 100644 --- a/arch/x86/include/asm/microcode.h +++ b/arch/x86/include/asm/microcode.h @@ -5,6 +5,7 @@ #include <asm/cpu.h> #include <linux/earlycpio.h> #include <linux/initrd.h> +#include <asm/microcode_amd.h> struct ucode_patch { struct list_head plist; diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h index e6662adf3af4..9675c621c1ca 100644 --- a/arch/x86/include/asm/microcode_amd.h +++ b/arch/x86/include/asm/microcode_amd.h @@ -48,11 +48,13 @@ extern void __init load_ucode_amd_bsp(unsigned int family); extern void load_ucode_amd_ap(unsigned int family); extern int __init save_microcode_in_initrd_amd(unsigned int family); void reload_ucode_amd(unsigned int cpu); +extern void amd_check_microcode(void); #else static inline void __init load_ucode_amd_bsp(unsigned int family) {} static inline void load_ucode_amd_ap(unsigned int family) {} static inline int __init save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; } static inline void reload_ucode_amd(unsigned int cpu) {} +static inline void amd_check_microcode(void) {} #endif #endif /* _ASM_X86_MICROCODE_AMD_H */ diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index 3aedae61af4f..a00a53e15ab7 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -545,6 +545,7 @@ #define MSR_AMD64_DE_CFG 0xc0011029 #define MSR_AMD64_DE_CFG_LFENCE_SERIALIZE_BIT 1 #define MSR_AMD64_DE_CFG_LFENCE_SERIALIZE BIT_ULL(MSR_AMD64_DE_CFG_LFENCE_SERIALIZE_BIT) +#define MSR_AMD64_DE_CFG_ZEN2_FP_BACKUP_FIX_BIT 9 #define MSR_AMD64_BU_CFG2 0xc001102a #define MSR_AMD64_IBSFETCHCTL 0xc0011030 diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 571abf808ea3..26ad7ca423e7 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -27,11 +27,6 @@ #include "cpu.h" -static const int amd_erratum_383[]; -static const int amd_erratum_400[]; -static const int amd_erratum_1054[]; -static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum); - /* * nodes_per_socket: Stores the number of nodes per socket. * Refer to Fam15h Models 00-0fh BKDG - CPUID Fn8000_001E_ECX @@ -39,6 +34,78 @@ static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum); */ static u32 nodes_per_socket = 1; +/* + * AMD errata checking + * + * Errata are defined as arrays of ints using the AMD_LEGACY_ERRATUM() or + * AMD_OSVW_ERRATUM() macros. The latter is intended for newer errata that + * have an OSVW id assigned, which it takes as first argument. Both take a + * variable number of family-specific model-stepping ranges created by + * AMD_MODEL_RANGE(). + * + * Example: + * + * const int amd_erratum_319[] = + * AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x10, 0x2, 0x1, 0x4, 0x2), + * AMD_MODEL_RANGE(0x10, 0x8, 0x0, 0x8, 0x0), + * AMD_MODEL_RANGE(0x10, 0x9, 0x0, 0x9, 0x0)); + */ + +#define AMD_LEGACY_ERRATUM(...) { -1, __VA_ARGS__, 0 } +#define AMD_OSVW_ERRATUM(osvw_id, ...) { osvw_id, __VA_ARGS__, 0 } +#define AMD_MODEL_RANGE(f, m_start, s_start, m_end, s_end) \ + ((f << 24) | (m_start << 16) | (s_start << 12) | (m_end << 4) | (s_end)) +#define AMD_MODEL_RANGE_FAMILY(range) (((range) >> 24) & 0xff) +#define AMD_MODEL_RANGE_START(range) (((range) >> 12) & 0xfff) +#define AMD_MODEL_RANGE_END(range) ((range) & 0xfff) + +static const int amd_erratum_400[] = + AMD_OSVW_ERRATUM(1, AMD_MODEL_RANGE(0xf, 0x41, 0x2, 0xff, 0xf), + AMD_MODEL_RANGE(0x10, 0x2, 0x1, 0xff, 0xf)); + +static const int amd_erratum_383[] = + AMD_OSVW_ERRATUM(3, AMD_MODEL_RANGE(0x10, 0, 0, 0xff, 0xf)); + +/* #1054: Instructions Retired Performance Counter May Be Inaccurate */ +static const int amd_erratum_1054[] = + AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x17, 0, 0, 0x2f, 0xf)); + +static const int amd_zenbleed[] = + AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x17, 0x30, 0x0, 0x4f, 0xf), + AMD_MODEL_RANGE(0x17, 0x60, 0x0, 0x7f, 0xf), + AMD_MODEL_RANGE(0x17, 0xa0, 0x0, 0xaf, 0xf)); + +static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum) +{ + int osvw_id = *erratum++; + u32 range; + u32 ms; + + if (osvw_id >= 0 && osvw_id < 65536 && + cpu_has(cpu, X86_FEATURE_OSVW)) { + u64 osvw_len; + + rdmsrl(MSR_AMD64_OSVW_ID_LENGTH, osvw_len); + if (osvw_id < osvw_len) { + u64 osvw_bits; + + rdmsrl(MSR_AMD64_OSVW_STATUS + (osvw_id >> 6), + osvw_bits); + return osvw_bits & (1ULL << (osvw_id & 0x3f)); + } + } + + /* OSVW unavailable or ID unknown, match family-model-stepping range */ + ms = (cpu->x86_model << 4) | cpu->x86_stepping; + while ((range = *erratum++)) + if ((cpu->x86 == AMD_MODEL_RANGE_FAMILY(range)) && + (ms >= AMD_MODEL_RANGE_START(range)) && + (ms <= AMD_MODEL_RANGE_END(range))) + return true; + + return false; +} + static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p) { u32 gprs[8] = { 0 }; @@ -916,6 +983,47 @@ static void init_amd_zn(struct cpuinfo_x86 *c) } } +static bool cpu_has_zenbleed_microcode(void) +{ + u32 good_rev = 0; + + switch (boot_cpu_data.x86_model) { + case 0x30 ... 0x3f: good_rev = 0x0830107a; break; + case 0x60 ... 0x67: good_rev = 0x0860010b; break; + case 0x68 ... 0x6f: good_rev = 0x08608105; break; + case 0x70 ... 0x7f: good_rev = 0x08701032; break; + case 0xa0 ... 0xaf: good_rev = 0x08a00008; break; + + default: + return false; + break; + } + + if (boot_cpu_data.microcode < good_rev) + return false; + + return true; +} + +static void zenbleed_check(struct cpuinfo_x86 *c) +{ + if (!cpu_has_amd_erratum(c, amd_zenbleed)) + return; + + if (cpu_has(c, X86_FEATURE_HYPERVISOR)) + return; + + if (!cpu_has(c, X86_FEATURE_AVX)) + return; + + if (!cpu_has_zenbleed_microcode()) { + pr_notice_once("Zenbleed: please update your microcode for the most optimal fix\n"); + msr_set_bit(MSR_AMD64_DE_CFG, MSR_AMD64_DE_CFG_ZEN2_FP_BACKUP_FIX_BIT); + } else { + msr_clear_bit(MSR_AMD64_DE_CFG, MSR_AMD64_DE_CFG_ZEN2_FP_BACKUP_FIX_BIT); + } +} + static void init_amd(struct cpuinfo_x86 *c) { early_init_amd(c); @@ -1020,6 +1128,8 @@ static void init_amd(struct cpuinfo_x86 *c) if (spectre_v2_in_eibrs_mode(spectre_v2_enabled) && cpu_has(c, X86_FEATURE_AUTOIBRS)) WARN_ON_ONCE(msr_set_bit(MSR_EFER, _EFER_AUTOIBRS)); + + zenbleed_check(c); } #ifdef CONFIG_X86_32 @@ -1115,73 +1225,6 @@ static const struct cpu_dev amd_cpu_dev = { cpu_dev_register(amd_cpu_dev); -/* - * AMD errata checking - * - * Errata are defined as arrays of ints using the AMD_LEGACY_ERRATUM() or - * AMD_OSVW_ERRATUM() macros. The latter is intended for newer errata that - * have an OSVW id assigned, which it takes as first argument. Both take a - * variable number of family-specific model-stepping ranges created by - * AMD_MODEL_RANGE(). - * - * Example: - * - * const int amd_erratum_319[] = - * AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x10, 0x2, 0x1, 0x4, 0x2), - * AMD_MODEL_RANGE(0x10, 0x8, 0x0, 0x8, 0x0), - * AMD_MODEL_RANGE(0x10, 0x9, 0x0, 0x9, 0x0)); - */ - -#define AMD_LEGACY_ERRATUM(...) { -1, __VA_ARGS__, 0 } -#define AMD_OSVW_ERRATUM(osvw_id, ...) { osvw_id, __VA_ARGS__, 0 } -#define AMD_MODEL_RANGE(f, m_start, s_start, m_end, s_end) \ - ((f << 24) | (m_start << 16) | (s_start << 12) | (m_end << 4) | (s_end)) -#define AMD_MODEL_RANGE_FAMILY(range) (((range) >> 24) & 0xff) -#define AMD_MODEL_RANGE_START(range) (((range) >> 12) & 0xfff) -#define AMD_MODEL_RANGE_END(range) ((range) & 0xfff) - -static const int amd_erratum_400[] = - AMD_OSVW_ERRATUM(1, AMD_MODEL_RANGE(0xf, 0x41, 0x2, 0xff, 0xf), - AMD_MODEL_RANGE(0x10, 0x2, 0x1, 0xff, 0xf)); - -static const int amd_erratum_383[] = - AMD_OSVW_ERRATUM(3, AMD_MODEL_RANGE(0x10, 0, 0, 0xff, 0xf)); - -/* #1054: Instructions Retired Performance Counter May Be Inaccurate */ -static const int amd_erratum_1054[] = - AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x17, 0, 0, 0x2f, 0xf)); - -static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum) -{ - int osvw_id = *erratum++; - u32 range; - u32 ms; - - if (osvw_id >= 0 && osvw_id < 65536 && - cpu_has(cpu, X86_FEATURE_OSVW)) { - u64 osvw_len; - - rdmsrl(MSR_AMD64_OSVW_ID_LENGTH, osvw_len); - if (osvw_id < osvw_len) { - u64 osvw_bits; - - rdmsrl(MSR_AMD64_OSVW_STATUS + (osvw_id >> 6), - osvw_bits); - return osvw_bits & (1ULL << (osvw_id & 0x3f)); - } - } - - /* OSVW unavailable or ID unknown, match family-model-stepping range */ - ms = (cpu->x86_model << 4) | cpu->x86_stepping; - while ((range = *erratum++)) - if ((cpu->x86 == AMD_MODEL_RANGE_FAMILY(range)) && - (ms >= AMD_MODEL_RANGE_START(range)) && - (ms <= AMD_MODEL_RANGE_END(range))) - return true; - - return false; -} - static DEFINE_PER_CPU_READ_MOSTLY(unsigned long[4], amd_dr_addr_mask); static unsigned int amd_msr_dr_addr_masks[] = { @@ -1235,3 +1278,15 @@ u32 amd_get_highest_perf(void) return 255; } EXPORT_SYMBOL_GPL(amd_get_highest_perf); + +static void zenbleed_check_cpu(void *unused) +{ + struct cpuinfo_x86 *c = &cpu_data(smp_processor_id()); + + zenbleed_check(c); +} + +void amd_check_microcode(void) +{ + on_each_cpu(zenbleed_check_cpu, NULL, 1); +} diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 9e2a91830f72..95507448e781 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -1150,19 +1150,21 @@ spectre_v2_user_select_mitigation(void) } /* - * If no STIBP, enhanced IBRS is enabled, or SMT impossible, STIBP + * If no STIBP, Intel enhanced IBRS is enabled, or SMT impossible, STIBP * is not required. * - * Enhanced IBRS also protects against cross-thread branch target + * Intel's Enhanced IBRS also protects against cross-thread branch target * injection in user-mode as the IBRS bit remains always set which * implicitly enables cross-thread protections. However, in legacy IBRS * mode, the IBRS bit is set only on kernel entry and cleared on return - * to userspace. This disables the implicit cross-thread protection, - * so allow for STIBP to be selected in that case. + * to userspace. AMD Automatic IBRS also does not protect userspace. + * These modes therefore disable the implicit cross-thread protection, + * so allow for STIBP to be selected in those cases. */ if (!boot_cpu_has(X86_FEATURE_STIBP) || !smt_possible || - spectre_v2_in_eibrs_mode(spectre_v2_enabled)) + (spectre_v2_in_eibrs_mode(spectre_v2_enabled) && + !boot_cpu_has(X86_FEATURE_AUTOIBRS))) return; /* @@ -2294,7 +2296,8 @@ static ssize_t mmio_stale_data_show_state(char *buf) static char *stibp_state(void) { - if (spectre_v2_in_eibrs_mode(spectre_v2_enabled)) + if (spectre_v2_in_eibrs_mode(spectre_v2_enabled) && + !boot_cpu_has(X86_FEATURE_AUTOIBRS)) return ""; switch (spectre_v2_user_stibp) { diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 52683fddafaf..0ba1067f4e5f 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -2287,6 +2287,8 @@ void microcode_check(struct cpuinfo_x86 *prev_info) perf_check_microcode(); + amd_check_microcode(); + store_cpu_caps(&curr_info); if (!memcmp(&prev_info->x86_capability, &curr_info.x86_capability, diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c index 5e74610b39e7..c4ec4ca47e11 100644 --- a/arch/x86/kernel/cpu/mce/amd.c +++ b/arch/x86/kernel/cpu/mce/amd.c @@ -1261,10 +1261,10 @@ static void __threshold_remove_blocks(struct threshold_bank *b) struct threshold_block *pos = NULL; struct threshold_block *tmp = NULL; - kobject_del(b->kobj); + kobject_put(b->kobj); list_for_each_entry_safe(pos, tmp, &b->blocks->miscj, miscj) - kobject_del(&pos->kobj); + kobject_put(b->kobj); } static void threshold_remove_bank(struct threshold_bank *bank) diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 58b1f208eff5..4a817d20ce3b 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -697,9 +697,10 @@ static bool try_fixup_enqcmd_gp(void) } static bool gp_try_fixup_and_notify(struct pt_regs *regs, int trapnr, - unsigned long error_code, const char *str) + unsigned long error_code, const char *str, + unsigned long address) { - if (fixup_exception(regs, trapnr, error_code, 0)) + if (fixup_exception(regs, trapnr, error_code, address)) return true; current->thread.error_code = error_code; @@ -759,7 +760,7 @@ DEFINE_IDTENTRY_ERRORCODE(exc_general_protection) goto exit; } - if (gp_try_fixup_and_notify(regs, X86_TRAP_GP, error_code, desc)) + if (gp_try_fixup_and_notify(regs, X86_TRAP_GP, error_code, desc, 0)) goto exit; if (error_code) @@ -1357,17 +1358,20 @@ DEFINE_IDTENTRY(exc_device_not_available) #define VE_FAULT_STR "VE fault" -static void ve_raise_fault(struct pt_regs *regs, long error_code) +static void ve_raise_fault(struct pt_regs *regs, long error_code, + unsigned long address) { if (user_mode(regs)) { gp_user_force_sig_segv(regs, X86_TRAP_VE, error_code, VE_FAULT_STR); return; } - if (gp_try_fixup_and_notify(regs, X86_TRAP_VE, error_code, VE_FAULT_STR)) + if (gp_try_fixup_and_notify(regs, X86_TRAP_VE, error_code, + VE_FAULT_STR, address)) { return; + } - die_addr(VE_FAULT_STR, regs, error_code, 0); + die_addr(VE_FAULT_STR, regs, error_code, address); } /* @@ -1431,7 +1435,7 @@ DEFINE_IDTENTRY(exc_virtualization_exception) * it successfully, treat it as #GP(0) and handle it. */ if (!tdx_handle_virt_exception(regs, &ve)) - ve_raise_fault(regs, 0); + ve_raise_fault(regs, 0, ve.gla); cond_local_irq_disable(regs); } diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 113ca9661ab2..a983a16163b1 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -637,16 +637,22 @@ bool __kvm_apic_update_irr(u32 *pir, void *regs, int *max_irr) *max_irr = -1; for (i = vec = 0; i <= 7; i++, vec += 32) { + u32 *p_irr = (u32 *)(regs + APIC_IRR + i * 0x10); + + irr_val = *p_irr; pir_val = READ_ONCE(pir[i]); - irr_val = *((u32 *)(regs + APIC_IRR + i * 0x10)); + if (pir_val) { + pir_val = xchg(&pir[i], 0); + prev_irr_val = irr_val; - irr_val |= xchg(&pir[i], 0); - *((u32 *)(regs + APIC_IRR + i * 0x10)) = irr_val; - if (prev_irr_val != irr_val) { - max_updated_irr = - __fls(irr_val ^ prev_irr_val) + vec; - } + do { + irr_val = prev_irr_val | pir_val; + } while (prev_irr_val != irr_val && + !try_cmpxchg(p_irr, &prev_irr_val, irr_val)); + + if (prev_irr_val != irr_val) + max_updated_irr = __fls(irr_val ^ prev_irr_val) + vec; } if (irr_val) *max_irr = __fls(irr_val) + vec; @@ -660,8 +666,11 @@ EXPORT_SYMBOL_GPL(__kvm_apic_update_irr); bool kvm_apic_update_irr(struct kvm_vcpu *vcpu, u32 *pir, int *max_irr) { struct kvm_lapic *apic = vcpu->arch.apic; + bool irr_updated = __kvm_apic_update_irr(pir, apic->regs, max_irr); - return __kvm_apic_update_irr(pir, apic->regs, max_irr); + if (unlikely(!apic->apicv_active && irr_updated)) + apic->irr_pending = true; + return irr_updated; } EXPORT_SYMBOL_GPL(kvm_apic_update_irr); diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index d381ad424554..956726d867aa 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1786,6 +1786,11 @@ static void sev_post_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) } } +static bool svm_is_valid_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) +{ + return true; +} + void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) { struct vcpu_svm *svm = to_svm(vcpu); @@ -3986,14 +3991,8 @@ static int svm_vcpu_pre_run(struct kvm_vcpu *vcpu) static fastpath_t svm_exit_handlers_fastpath(struct kvm_vcpu *vcpu) { - struct vmcb_control_area *control = &to_svm(vcpu)->vmcb->control; - - /* - * Note, the next RIP must be provided as SRCU isn't held, i.e. KVM - * can't read guest memory (dereference memslots) to decode the WRMSR. - */ - if (control->exit_code == SVM_EXIT_MSR && control->exit_info_1 && - nrips && control->next_rip) + if (to_svm(vcpu)->vmcb->control.exit_code == SVM_EXIT_MSR && + to_svm(vcpu)->vmcb->control.exit_info_1) return handle_fastpath_set_msr_irqoff(vcpu); return EXIT_FASTPATH_NONE; @@ -4815,6 +4814,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = { .set_segment = svm_set_segment, .get_cpl = svm_get_cpl, .get_cs_db_l_bits = svm_get_cs_db_l_bits, + .is_valid_cr0 = svm_is_valid_cr0, .set_cr0 = svm_set_cr0, .post_set_cr3 = sev_post_set_cr3, .is_valid_cr4 = svm_is_valid_cr4, diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S index 07e927d4d099..be275a0410a8 100644 --- a/arch/x86/kvm/vmx/vmenter.S +++ b/arch/x86/kvm/vmx/vmenter.S @@ -303,10 +303,8 @@ SYM_FUNC_START(vmx_do_nmi_irqoff) VMX_DO_EVENT_IRQOFF call asm_exc_nmi_kvm_vmx SYM_FUNC_END(vmx_do_nmi_irqoff) - -.section .text, "ax" - #ifndef CONFIG_CC_HAS_ASM_GOTO_OUTPUT + /** * vmread_error_trampoline - Trampoline from inline asm to vmread_error() * @field: VMCS field encoding that failed @@ -335,7 +333,7 @@ SYM_FUNC_START(vmread_error_trampoline) mov 3*WORD_SIZE(%_ASM_BP), %_ASM_ARG2 mov 2*WORD_SIZE(%_ASM_BP), %_ASM_ARG1 - call vmread_error + call vmread_error_trampoline2 /* Zero out @fault, which will be popped into the result register. */ _ASM_MOV $0, 3*WORD_SIZE(%_ASM_BP) @@ -357,6 +355,8 @@ SYM_FUNC_START(vmread_error_trampoline) SYM_FUNC_END(vmread_error_trampoline) #endif +.section .text, "ax" + SYM_FUNC_START(vmx_do_interrupt_irqoff) VMX_DO_EVENT_IRQOFF CALL_NOSPEC _ASM_ARG1 SYM_FUNC_END(vmx_do_interrupt_irqoff) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 0ecf4be2c6af..df461f387e20 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -441,13 +441,23 @@ do { \ pr_warn_ratelimited(fmt); \ } while (0) -void vmread_error(unsigned long field, bool fault) +noinline void vmread_error(unsigned long field) { - if (fault) + vmx_insn_failed("vmread failed: field=%lx\n", field); +} + +#ifndef CONFIG_CC_HAS_ASM_GOTO_OUTPUT +noinstr void vmread_error_trampoline2(unsigned long field, bool fault) +{ + if (fault) { kvm_spurious_fault(); - else - vmx_insn_failed("vmread failed: field=%lx\n", field); + } else { + instrumentation_begin(); + vmread_error(field); + instrumentation_end(); + } } +#endif noinline void vmwrite_error(unsigned long field, unsigned long value) { @@ -1503,6 +1513,11 @@ void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags) struct vcpu_vmx *vmx = to_vmx(vcpu); unsigned long old_rflags; + /* + * Unlike CR0 and CR4, RFLAGS handling requires checking if the vCPU + * is an unrestricted guest in order to mark L2 as needing emulation + * if L1 runs L2 as a restricted guest. + */ if (is_unrestricted_guest(vcpu)) { kvm_register_mark_available(vcpu, VCPU_EXREG_RFLAGS); vmx->rflags = rflags; @@ -3037,6 +3052,15 @@ static void enter_rmode(struct kvm_vcpu *vcpu) struct vcpu_vmx *vmx = to_vmx(vcpu); struct kvm_vmx *kvm_vmx = to_kvm_vmx(vcpu->kvm); + /* + * KVM should never use VM86 to virtualize Real Mode when L2 is active, + * as using VM86 is unnecessary if unrestricted guest is enabled, and + * if unrestricted guest is disabled, VM-Enter (from L1) with CR0.PG=0 + * should VM-Fail and KVM should reject userspace attempts to stuff + * CR0.PG=0 when L2 is active. + */ + WARN_ON_ONCE(is_guest_mode(vcpu)); + vmx_get_segment(vcpu, &vmx->rmode.segs[VCPU_SREG_TR], VCPU_SREG_TR); vmx_get_segment(vcpu, &vmx->rmode.segs[VCPU_SREG_ES], VCPU_SREG_ES); vmx_get_segment(vcpu, &vmx->rmode.segs[VCPU_SREG_DS], VCPU_SREG_DS); @@ -3226,6 +3250,17 @@ void ept_save_pdptrs(struct kvm_vcpu *vcpu) #define CR3_EXITING_BITS (CPU_BASED_CR3_LOAD_EXITING | \ CPU_BASED_CR3_STORE_EXITING) +static bool vmx_is_valid_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) +{ + if (is_guest_mode(vcpu)) + return nested_guest_cr0_valid(vcpu, cr0); + + if (to_vmx(vcpu)->nested.vmxon) + return nested_host_cr0_valid(vcpu, cr0); + + return true; +} + void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) { struct vcpu_vmx *vmx = to_vmx(vcpu); @@ -3235,7 +3270,7 @@ void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) old_cr0_pg = kvm_read_cr0_bits(vcpu, X86_CR0_PG); hw_cr0 = (cr0 & ~KVM_VM_CR0_ALWAYS_OFF); - if (is_unrestricted_guest(vcpu)) + if (enable_unrestricted_guest) hw_cr0 |= KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST; else { hw_cr0 |= KVM_VM_CR0_ALWAYS_ON; @@ -3263,7 +3298,7 @@ void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) } #endif - if (enable_ept && !is_unrestricted_guest(vcpu)) { + if (enable_ept && !enable_unrestricted_guest) { /* * Ensure KVM has an up-to-date snapshot of the guest's CR3. If * the below code _enables_ CR3 exiting, vmx_cache_reg() will @@ -3394,7 +3429,7 @@ void vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) * this bit, even if host CR4.MCE == 0. */ hw_cr4 = (cr4_read_shadow() & X86_CR4_MCE) | (cr4 & ~X86_CR4_MCE); - if (is_unrestricted_guest(vcpu)) + if (enable_unrestricted_guest) hw_cr4 |= KVM_VM_CR4_ALWAYS_ON_UNRESTRICTED_GUEST; else if (vmx->rmode.vm86_active) hw_cr4 |= KVM_RMODE_VM_CR4_ALWAYS_ON; @@ -3414,7 +3449,7 @@ void vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) vcpu->arch.cr4 = cr4; kvm_register_mark_available(vcpu, VCPU_EXREG_CR4); - if (!is_unrestricted_guest(vcpu)) { + if (!enable_unrestricted_guest) { if (enable_ept) { if (!is_paging(vcpu)) { hw_cr4 &= ~X86_CR4_PAE; @@ -4651,7 +4686,8 @@ static int vmx_alloc_ipiv_pid_table(struct kvm *kvm) if (kvm_vmx->pid_table) return 0; - pages = alloc_pages(GFP_KERNEL | __GFP_ZERO, vmx_get_pid_table_order(kvm)); + pages = alloc_pages(GFP_KERNEL_ACCOUNT | __GFP_ZERO, + vmx_get_pid_table_order(kvm)); if (!pages) return -ENOMEM; @@ -5364,18 +5400,11 @@ static int handle_set_cr0(struct kvm_vcpu *vcpu, unsigned long val) val = (val & ~vmcs12->cr0_guest_host_mask) | (vmcs12->guest_cr0 & vmcs12->cr0_guest_host_mask); - if (!nested_guest_cr0_valid(vcpu, val)) - return 1; - if (kvm_set_cr0(vcpu, val)) return 1; vmcs_writel(CR0_READ_SHADOW, orig_val); return 0; } else { - if (to_vmx(vcpu)->nested.vmxon && - !nested_host_cr0_valid(vcpu, val)) - return 1; - return kvm_set_cr0(vcpu, val); } } @@ -8203,6 +8232,7 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = { .set_segment = vmx_set_segment, .get_cpl = vmx_get_cpl, .get_cs_db_l_bits = vmx_get_cs_db_l_bits, + .is_valid_cr0 = vmx_is_valid_cr0, .set_cr0 = vmx_set_cr0, .is_valid_cr4 = vmx_is_valid_cr4, .set_cr4 = vmx_set_cr4, diff --git a/arch/x86/kvm/vmx/vmx_ops.h b/arch/x86/kvm/vmx/vmx_ops.h index ce47dc265f89..33af7b4c6eb4 100644 --- a/arch/x86/kvm/vmx/vmx_ops.h +++ b/arch/x86/kvm/vmx/vmx_ops.h @@ -10,7 +10,7 @@ #include "vmcs.h" #include "../x86.h" -void vmread_error(unsigned long field, bool fault); +void vmread_error(unsigned long field); void vmwrite_error(unsigned long field, unsigned long value); void vmclear_error(struct vmcs *vmcs, u64 phys_addr); void vmptrld_error(struct vmcs *vmcs, u64 phys_addr); @@ -31,6 +31,13 @@ void invept_error(unsigned long ext, u64 eptp, gpa_t gpa); * void vmread_error_trampoline(unsigned long field, bool fault); */ extern unsigned long vmread_error_trampoline; + +/* + * The second VMREAD error trampoline, called from the assembly trampoline, + * exists primarily to enable instrumentation for the VM-Fail path. + */ +void vmread_error_trampoline2(unsigned long field, bool fault); + #endif static __always_inline void vmcs_check16(unsigned long field) @@ -101,8 +108,7 @@ static __always_inline unsigned long __vmcs_readl(unsigned long field) do_fail: instrumentation_begin(); - WARN_ONCE(1, KBUILD_MODNAME ": vmread failed: field=%lx\n", field); - pr_warn_ratelimited(KBUILD_MODNAME ": vmread failed: field=%lx\n", field); + vmread_error(field); instrumentation_end(); return 0; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a6b9bea62fb8..278dbd37dab2 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -906,6 +906,22 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3) } EXPORT_SYMBOL_GPL(load_pdptrs); +static bool kvm_is_valid_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) +{ +#ifdef CONFIG_X86_64 + if (cr0 & 0xffffffff00000000UL) + return false; +#endif + + if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD)) + return false; + + if ((cr0 & X86_CR0_PG) && !(cr0 & X86_CR0_PE)) + return false; + + return static_call(kvm_x86_is_valid_cr0)(vcpu, cr0); +} + void kvm_post_set_cr0(struct kvm_vcpu *vcpu, unsigned long old_cr0, unsigned long cr0) { /* @@ -952,20 +968,13 @@ int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) { unsigned long old_cr0 = kvm_read_cr0(vcpu); - cr0 |= X86_CR0_ET; - -#ifdef CONFIG_X86_64 - if (cr0 & 0xffffffff00000000UL) + if (!kvm_is_valid_cr0(vcpu, cr0)) return 1; -#endif - cr0 &= ~CR0_RESERVED_BITS; - - if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD)) - return 1; + cr0 |= X86_CR0_ET; - if ((cr0 & X86_CR0_PG) && !(cr0 & X86_CR0_PE)) - return 1; + /* Write to CR0 reserved bits are ignored, even on Intel. */ + cr0 &= ~CR0_RESERVED_BITS; #ifdef CONFIG_X86_64 if ((vcpu->arch.efer & EFER_LME) && !is_paging(vcpu) && @@ -2172,6 +2181,8 @@ fastpath_t handle_fastpath_set_msr_irqoff(struct kvm_vcpu *vcpu) u64 data; fastpath_t ret = EXIT_FASTPATH_NONE; + kvm_vcpu_srcu_read_lock(vcpu); + switch (msr) { case APIC_BASE_MSR + (APIC_ICR >> 4): data = kvm_read_edx_eax(vcpu); @@ -2194,6 +2205,8 @@ fastpath_t handle_fastpath_set_msr_irqoff(struct kvm_vcpu *vcpu) if (ret != EXIT_FASTPATH_NONE) trace_kvm_msr_write(msr, data); + kvm_vcpu_srcu_read_unlock(vcpu); + return ret; } EXPORT_SYMBOL_GPL(handle_fastpath_set_msr_irqoff); @@ -10203,9 +10216,13 @@ static int kvm_check_and_inject_events(struct kvm_vcpu *vcpu, if (r < 0) goto out; if (r) { - kvm_queue_interrupt(vcpu, kvm_cpu_get_interrupt(vcpu), false); - static_call(kvm_x86_inject_irq)(vcpu, false); - WARN_ON(static_call(kvm_x86_interrupt_allowed)(vcpu, true) < 0); + int irq = kvm_cpu_get_interrupt(vcpu); + + if (!WARN_ON_ONCE(irq == -1)) { + kvm_queue_interrupt(vcpu, irq, false); + static_call(kvm_x86_inject_irq)(vcpu, false); + WARN_ON(static_call(kvm_x86_interrupt_allowed)(vcpu, true) < 0); + } } if (kvm_cpu_has_injectable_intr(vcpu)) static_call(kvm_x86_enable_irq_window)(vcpu); @@ -11460,7 +11477,8 @@ static bool kvm_is_valid_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) return false; } - return kvm_is_valid_cr4(vcpu, sregs->cr4); + return kvm_is_valid_cr4(vcpu, sregs->cr4) && + kvm_is_valid_cr0(vcpu, sregs->cr0); } static int __set_sregs_common(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs, @@ -13185,7 +13203,7 @@ EXPORT_SYMBOL_GPL(kvm_arch_has_noncoherent_dma); bool kvm_arch_has_irq_bypass(void) { - return true; + return enable_apicv && irq_remapping_cap(IRQ_POSTING_CAP); } int kvm_arch_irq_bypass_add_producer(struct irq_bypass_consumer *cons, |