diff options
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 14 | ||||
| -rw-r--r-- | arch/x86/kvm/cpuid.h | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/emulate.c | 8 | ||||
| -rw-r--r-- | arch/x86/kvm/kvm_emulate.h | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/svm.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 5 |
6 files changed, 17 insertions, 16 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index afa2062b5a79..08280d8a2ac9 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -986,16 +986,16 @@ get_out_of_range_cpuid_entry(struct kvm_vcpu *vcpu, u32 *fn_ptr, u32 index) } bool kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, - u32 *ecx, u32 *edx, bool check_limit) + u32 *ecx, u32 *edx, bool exact_only) { u32 orig_function = *eax, function = *eax, index = *ecx; struct kvm_cpuid_entry2 *entry; - bool found; + bool exact; entry = kvm_find_cpuid_entry(vcpu, function, index); - found = entry; + exact = !!entry; - if (!entry && check_limit) + if (!entry && !exact_only) entry = get_out_of_range_cpuid_entry(vcpu, &function, index); if (entry) { @@ -1026,8 +1026,8 @@ bool kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, } } } - trace_kvm_cpuid(orig_function, *eax, *ebx, *ecx, *edx, found); - return found; + trace_kvm_cpuid(orig_function, *eax, *ebx, *ecx, *edx, exact); + return exact; } EXPORT_SYMBOL_GPL(kvm_cpuid); @@ -1040,7 +1040,7 @@ int kvm_emulate_cpuid(struct kvm_vcpu *vcpu) eax = kvm_rax_read(vcpu); ecx = kvm_rcx_read(vcpu); - kvm_cpuid(vcpu, &eax, &ebx, &ecx, &edx, true); + kvm_cpuid(vcpu, &eax, &ebx, &ecx, &edx, false); kvm_rax_write(vcpu, eax); kvm_rbx_write(vcpu, ebx); kvm_rcx_write(vcpu, ecx); diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h index a0988609f620..23b4cd1ad986 100644 --- a/arch/x86/kvm/cpuid.h +++ b/arch/x86/kvm/cpuid.h @@ -25,7 +25,7 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu, struct kvm_cpuid2 *cpuid, struct kvm_cpuid_entry2 __user *entries); bool kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, - u32 *ecx, u32 *edx, bool check_limit); + u32 *ecx, u32 *edx, bool exact_only); int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 6663f6887d2c..fefa32d6af00 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2722,7 +2722,7 @@ static bool vendor_intel(struct x86_emulate_ctxt *ctxt) u32 eax, ebx, ecx, edx; eax = ecx = 0; - ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false); + ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, true); return is_guest_vendor_intel(ebx, ecx, edx); } @@ -2740,7 +2740,7 @@ static bool em_syscall_is_enabled(struct x86_emulate_ctxt *ctxt) eax = 0x00000000; ecx = 0x00000000; - ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false); + ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, true); /* * remark: Intel CPUs only support "syscall" in 64bit longmode. Also a * 64bit guest with a 32bit compat-app running will #UD !! While this @@ -3971,7 +3971,7 @@ static int em_cpuid(struct x86_emulate_ctxt *ctxt) eax = reg_read(ctxt, VCPU_REGS_RAX); ecx = reg_read(ctxt, VCPU_REGS_RCX); - ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, true); + ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false); *reg_write(ctxt, VCPU_REGS_RAX) = eax; *reg_write(ctxt, VCPU_REGS_RBX) = ebx; *reg_write(ctxt, VCPU_REGS_RCX) = ecx; @@ -4241,7 +4241,7 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt) eax = 0x80000008; ecx = 0; if (ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, - &edx, false)) + &edx, true)) maxphyaddr = eax & 0xff; else maxphyaddr = 36; diff --git a/arch/x86/kvm/kvm_emulate.h b/arch/x86/kvm/kvm_emulate.h index 3cb50eda606d..4688b26c17ee 100644 --- a/arch/x86/kvm/kvm_emulate.h +++ b/arch/x86/kvm/kvm_emulate.h @@ -221,7 +221,7 @@ struct x86_emulate_ops { enum x86_intercept_stage stage); bool (*get_cpuid)(struct x86_emulate_ctxt *ctxt, u32 *eax, u32 *ebx, - u32 *ecx, u32 *edx, bool check_limit); + u32 *ecx, u32 *edx, bool exact_only); bool (*guest_has_long_mode)(struct x86_emulate_ctxt *ctxt); bool (*guest_has_movbe)(struct x86_emulate_ctxt *ctxt); bool (*guest_has_fxsr)(struct x86_emulate_ctxt *ctxt); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 4dca3579e740..95d0d1841483 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2193,7 +2193,7 @@ static void svm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) } init_vmcb(svm); - kvm_cpuid(vcpu, &eax, &dummy, &dummy, &dummy, true); + kvm_cpuid(vcpu, &eax, &dummy, &dummy, &dummy, false); kvm_rdx_write(vcpu, eax); if (kvm_vcpu_apicv_active(vcpu) && !init_event) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index cda0b787b2e3..62cf170b31d4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6241,9 +6241,10 @@ static int emulator_intercept(struct x86_emulate_ctxt *ctxt, } static bool emulator_get_cpuid(struct x86_emulate_ctxt *ctxt, - u32 *eax, u32 *ebx, u32 *ecx, u32 *edx, bool check_limit) + u32 *eax, u32 *ebx, u32 *ecx, u32 *edx, + bool exact_only) { - return kvm_cpuid(emul_to_vcpu(ctxt), eax, ebx, ecx, edx, check_limit); + return kvm_cpuid(emul_to_vcpu(ctxt), eax, ebx, ecx, edx, exact_only); } static bool emulator_guest_has_long_mode(struct x86_emulate_ctxt *ctxt) |