Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "ARM:
   - Move the arch-specific code into arch/arm64/kvm

   - Start the post-32bit cleanup

   - Cherry-pick a few non-invasive pre-NV patches

  x86:
   - Rework of TLB flushing

   - Rework of event injection, especially with respect to nested
     virtualization

   - Nested AMD event injection facelift, building on the rework of
     generic code and fixing a lot of corner cases

   - Nested AMD live migration support

   - Optimization for TSC deadline MSR writes and IPIs

   - Various cleanups

   - Asynchronous page fault cleanups (from tglx, common topic branch
     with tip tree)

   - Interrupt-based delivery of asynchronous "page ready" events (host
     side)

   - Hyper-V MSRs and hypercalls for guest debugging

   - VMX preemption timer fixes

  s390:
   - Cleanups

  Generic:
   - switch vCPU thread wakeup from swait to rcuwait

  The other architectures, and the guest side of the asynchronous page
  fault work, will come next week"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (256 commits)
  KVM: selftests: fix rdtsc() for vmx_tsc_adjust_test
  KVM: check userspace_addr for all memslots
  KVM: selftests: update hyperv_cpuid with SynDBG tests
  x86/kvm/hyper-v: Add support for synthetic debugger via hypercalls
  x86/kvm/hyper-v: enable hypercalls regardless of hypercall page
  x86/kvm/hyper-v: Add support for synthetic debugger interface
  x86/hyper-v: Add synthetic debugger definitions
  KVM: selftests: VMX preemption timer migration test
  KVM: nVMX: Fix VMX preemption timer migration
  x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit
  KVM: x86/pmu: Support full width counting
  KVM: x86/pmu: Tweak kvm_pmu_get_msr to pass 'struct msr_data' in
  KVM: x86: announce KVM_FEATURE_ASYNC_PF_INT
  KVM: x86: acknowledgment mechanism for async pf page ready notifications
  KVM: x86: interrupt based APF 'page ready' event delivery
  KVM: introduce kvm_read_guest_offset_cached()
  KVM: rename kvm_arch_can_inject_async_page_present() to kvm_arch_can_dequeue_async_page_present()
  KVM: x86: extend struct kvm_vcpu_pv_apf_data with token info
  Revert "KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously"
  KVM: VMX: Replace zero-length array with flexible-array
  ...

2 files changed, 38 insertions, 36 deletions

diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 2c343c346b79..e28b5a946e26 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -174,6 +174,8 @@ struct kvm_vcpu_stat {
 #endif
 	u64 halt_successful_poll;
 	u64 halt_attempted_poll;
+	u64 halt_poll_success_ns;
+	u64 halt_poll_fail_ns;
 	u64 halt_poll_invalid;
 	u64 halt_wakeup;
 };
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 2261c63174c5..3b0148c99c0d 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -39,40 +39,41 @@
 #define VECTORSPACING 0x100	/* for EI/VI mode */
 #endif
 
-#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x)
 struct kvm_stats_debugfs_item debugfs_entries[] = {
-	{ "wait",	  VCPU_STAT(wait_exits),	 KVM_STAT_VCPU },
-	{ "cache",	  VCPU_STAT(cache_exits),	 KVM_STAT_VCPU },
-	{ "signal",	  VCPU_STAT(signal_exits),	 KVM_STAT_VCPU },
-	{ "interrupt",	  VCPU_STAT(int_exits),		 KVM_STAT_VCPU },
-	{ "cop_unusable", VCPU_STAT(cop_unusable_exits), KVM_STAT_VCPU },
-	{ "tlbmod",	  VCPU_STAT(tlbmod_exits),	 KVM_STAT_VCPU },
-	{ "tlbmiss_ld",	  VCPU_STAT(tlbmiss_ld_exits),	 KVM_STAT_VCPU },
-	{ "tlbmiss_st",	  VCPU_STAT(tlbmiss_st_exits),	 KVM_STAT_VCPU },
-	{ "addrerr_st",	  VCPU_STAT(addrerr_st_exits),	 KVM_STAT_VCPU },
-	{ "addrerr_ld",	  VCPU_STAT(addrerr_ld_exits),	 KVM_STAT_VCPU },
-	{ "syscall",	  VCPU_STAT(syscall_exits),	 KVM_STAT_VCPU },
-	{ "resvd_inst",	  VCPU_STAT(resvd_inst_exits),	 KVM_STAT_VCPU },
-	{ "break_inst",	  VCPU_STAT(break_inst_exits),	 KVM_STAT_VCPU },
-	{ "trap_inst",	  VCPU_STAT(trap_inst_exits),	 KVM_STAT_VCPU },
-	{ "msa_fpe",	  VCPU_STAT(msa_fpe_exits),	 KVM_STAT_VCPU },
-	{ "fpe",	  VCPU_STAT(fpe_exits),		 KVM_STAT_VCPU },
-	{ "msa_disabled", VCPU_STAT(msa_disabled_exits), KVM_STAT_VCPU },
-	{ "flush_dcache", VCPU_STAT(flush_dcache_exits), KVM_STAT_VCPU },
+	VCPU_STAT("wait", wait_exits),
+	VCPU_STAT("cache", cache_exits),
+	VCPU_STAT("signal", signal_exits),
+	VCPU_STAT("interrupt", int_exits),
+	VCPU_STAT("cop_unusable", cop_unusable_exits),
+	VCPU_STAT("tlbmod", tlbmod_exits),
+	VCPU_STAT("tlbmiss_ld", tlbmiss_ld_exits),
+	VCPU_STAT("tlbmiss_st", tlbmiss_st_exits),
+	VCPU_STAT("addrerr_st", addrerr_st_exits),
+	VCPU_STAT("addrerr_ld", addrerr_ld_exits),
+	VCPU_STAT("syscall", syscall_exits),
+	VCPU_STAT("resvd_inst", resvd_inst_exits),
+	VCPU_STAT("break_inst", break_inst_exits),
+	VCPU_STAT("trap_inst", trap_inst_exits),
+	VCPU_STAT("msa_fpe", msa_fpe_exits),
+	VCPU_STAT("fpe", fpe_exits),
+	VCPU_STAT("msa_disabled", msa_disabled_exits),
+	VCPU_STAT("flush_dcache", flush_dcache_exits),
 #ifdef CONFIG_KVM_MIPS_VZ
-	{ "vz_gpsi",	  VCPU_STAT(vz_gpsi_exits),	 KVM_STAT_VCPU },
-	{ "vz_gsfc",	  VCPU_STAT(vz_gsfc_exits),	 KVM_STAT_VCPU },
-	{ "vz_hc",	  VCPU_STAT(vz_hc_exits),	 KVM_STAT_VCPU },
-	{ "vz_grr",	  VCPU_STAT(vz_grr_exits),	 KVM_STAT_VCPU },
-	{ "vz_gva",	  VCPU_STAT(vz_gva_exits),	 KVM_STAT_VCPU },
-	{ "vz_ghfc",	  VCPU_STAT(vz_ghfc_exits),	 KVM_STAT_VCPU },
-	{ "vz_gpa",	  VCPU_STAT(vz_gpa_exits),	 KVM_STAT_VCPU },
-	{ "vz_resvd",	  VCPU_STAT(vz_resvd_exits),	 KVM_STAT_VCPU },
+	VCPU_STAT("vz_gpsi", vz_gpsi_exits),
+	VCPU_STAT("vz_gsfc", vz_gsfc_exits),
+	VCPU_STAT("vz_hc", vz_hc_exits),
+	VCPU_STAT("vz_grr", vz_grr_exits),
+	VCPU_STAT("vz_gva", vz_gva_exits),
+	VCPU_STAT("vz_ghfc", vz_ghfc_exits),
+	VCPU_STAT("vz_gpa", vz_gpa_exits),
+	VCPU_STAT("vz_resvd", vz_resvd_exits),
 #endif
-	{ "halt_successful_poll", VCPU_STAT(halt_successful_poll), KVM_STAT_VCPU },
-	{ "halt_attempted_poll", VCPU_STAT(halt_attempted_poll), KVM_STAT_VCPU },
-	{ "halt_poll_invalid", VCPU_STAT(halt_poll_invalid), KVM_STAT_VCPU },
-	{ "halt_wakeup",  VCPU_STAT(halt_wakeup),	 KVM_STAT_VCPU },
+	VCPU_STAT("halt_successful_poll", halt_successful_poll),
+	VCPU_STAT("halt_attempted_poll", halt_attempted_poll),
+	VCPU_STAT("halt_poll_invalid", halt_poll_invalid),
+	VCPU_STAT("halt_wakeup", halt_wakeup),
+	VCPU_STAT("halt_poll_success_ns", halt_poll_success_ns),
+	VCPU_STAT("halt_poll_fail_ns", halt_poll_fail_ns),
 	{NULL}
 };
 
@@ -284,8 +285,7 @@ static enum hrtimer_restart kvm_mips_comparecount_wakeup(struct hrtimer *timer)
 	kvm_mips_callbacks->queue_timer_int(vcpu);
 
 	vcpu->arch.wait = 0;
-	if (swq_has_sleeper(&vcpu->wq))
-		swake_up_one(&vcpu->wq);
+	rcuwait_wake_up(&vcpu->wait);
 
 	return kvm_mips_count_timeout(vcpu);
 }
@@ -439,8 +439,9 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 	return -ENOIOCTLCMD;
 }
 
-int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
+int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 {
+	struct kvm_run *run = vcpu->run;
 	int r = -EINTR;
 
 	vcpu_load(vcpu);
@@ -511,8 +512,7 @@ int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
 
 	dvcpu->arch.wait = 0;
 
-	if (swq_has_sleeper(&dvcpu->wq))
-		swake_up_one(&dvcpu->wq);
+	rcuwait_wake_up(&dvcpu->wait);
 
 	return 0;
 }