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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/vmx | |
| parent | dcbcfa287e964931f7051ff00ed33dbf33d39abd (diff) | |
| download | linux-ef8efd7a15bb7147a4ffb09758a6bd25d744a14e.tar.bz2 | |
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/vmx')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 3e18df4cfb34..7ba8de3325be 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7710,6 +7710,13 @@ static __exit void hardware_unsetup(void) free_kvm_area(); } +static bool vmx_check_apicv_inhibit_reasons(ulong bit) +{ + ulong supported = BIT(APICV_INHIBIT_REASON_DISABLE); + + return supported & BIT(bit); +} + static struct kvm_x86_ops vmx_x86_ops __ro_after_init = { .cpu_has_kvm_support = cpu_has_kvm_support, .disabled_by_bios = vmx_disabled_by_bios, @@ -7785,6 +7792,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = { .refresh_apicv_exec_ctrl = vmx_refresh_apicv_exec_ctrl, .load_eoi_exitmap = vmx_load_eoi_exitmap, .apicv_post_state_restore = vmx_apicv_post_state_restore, + .check_apicv_inhibit_reasons = vmx_check_apicv_inhibit_reasons, .hwapic_irr_update = vmx_hwapic_irr_update, .hwapic_isr_update = vmx_hwapic_isr_update, .guest_apic_has_interrupt = vmx_guest_apic_has_interrupt, |