diff options
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ceb7c5e9cf9e..7f70207e8689 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1446,7 +1446,7 @@ static const u32 msrs_to_save_base[] = { #endif MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA, MSR_IA32_FEAT_CTL, MSR_IA32_BNDCFGS, MSR_TSC_AUX, - MSR_IA32_SPEC_CTRL, + MSR_IA32_SPEC_CTRL, MSR_IA32_TSX_CTRL, MSR_IA32_RTIT_CTL, MSR_IA32_RTIT_STATUS, MSR_IA32_RTIT_CR3_MATCH, MSR_IA32_RTIT_OUTPUT_BASE, MSR_IA32_RTIT_OUTPUT_MASK, MSR_IA32_RTIT_ADDR0_A, MSR_IA32_RTIT_ADDR0_B, @@ -2799,14 +2799,13 @@ static u64 read_tsc(void) static inline u64 vgettsc(struct pvclock_clock *clock, u64 *tsc_timestamp, int *mode) { - long v; u64 tsc_pg_val; + long v; switch (clock->vclock_mode) { case VDSO_CLOCKMODE_HVCLOCK: - tsc_pg_val = hv_read_tsc_page_tsc(hv_get_tsc_page(), - tsc_timestamp); - if (tsc_pg_val != U64_MAX) { + if (hv_read_tsc_page_tsc(hv_get_tsc_page(), + tsc_timestamp, &tsc_pg_val)) { /* TSC page valid */ *mode = VDSO_CLOCKMODE_HVCLOCK; v = (tsc_pg_val - clock->cycle_last) & @@ -7155,6 +7154,10 @@ static void kvm_probe_msr_to_save(u32 msr_index) if (!kvm_cpu_cap_has(X86_FEATURE_XFD)) return; break; + case MSR_IA32_TSX_CTRL: + if (!(kvm_get_arch_capabilities() & ARCH_CAP_TSX_CTRL_MSR)) + return; + break; default: break; } @@ -10754,6 +10757,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) exit_fastpath = EXIT_FASTPATH_EXIT_HANDLED; break; } + + /* Note, VM-Exits that go down the "slow" path are accounted below. */ + ++vcpu->stat.exits; } /* @@ -13155,7 +13161,7 @@ EXPORT_SYMBOL_GPL(kvm_arch_end_assignment); bool noinstr kvm_arch_has_assigned_device(struct kvm *kvm) { - return arch_atomic_read(&kvm->arch.assigned_device_count); + return raw_atomic_read(&kvm->arch.assigned_device_count); } EXPORT_SYMBOL_GPL(kvm_arch_has_assigned_device); |