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| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2019-11-14 14:15:10 -0600 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-02-05 15:17:42 +0100 |
| commit | ef8efd7a15bb7147a4ffb09758a6bd25d744a14e (patch) | |
| tree | 9e878b0f2abafeb446688ce1c7a844b2ea0d1795 /arch/x86/kvm/svm.c | |
| parent | dcbcfa287e964931f7051ff00ed33dbf33d39abd (diff) | |
| download | linux-ef8efd7a15bb7147a4ffb09758a6bd25d744a14e.tar.gz linux-ef8efd7a15bb7147a4ffb09758a6bd25d744a14e.tar.bz2 linux-ef8efd7a15bb7147a4ffb09758a6bd25d744a14e.zip | |
kvm: x86: Introduce APICv x86 ops for checking APIC inhibit reasons
Inibit reason bits are used to determine if APICv deactivation is
applicable for a particular hardware virtualization architecture.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index dcea6b663d5c..842c0630af35 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -7298,6 +7298,13 @@ static bool svm_apic_init_signal_blocked(struct kvm_vcpu *vcpu) (svm->vmcb->control.intercept & (1ULL << INTERCEPT_INIT)); } +static bool svm_check_apicv_inhibit_reasons(ulong bit) +{ + ulong supported = BIT(APICV_INHIBIT_REASON_DISABLE); + + return supported & BIT(bit); +} + static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .cpu_has_kvm_support = has_svm, .disabled_by_bios = is_disabled, @@ -7373,6 +7380,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .update_cr8_intercept = update_cr8_intercept, .set_virtual_apic_mode = svm_set_virtual_apic_mode, .refresh_apicv_exec_ctrl = svm_refresh_apicv_exec_ctrl, + .check_apicv_inhibit_reasons = svm_check_apicv_inhibit_reasons, .load_eoi_exitmap = svm_load_eoi_exitmap, .hwapic_irr_update = svm_hwapic_irr_update, .hwapic_isr_update = svm_hwapic_isr_update, |