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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/x86.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/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 3ceb0bc7d3f2..dbff8011f0f2 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -8034,6 +8034,10 @@ EXPORT_SYMBOL_GPL(kvm_vcpu_update_apicv); */ void kvm_request_apicv_update(struct kvm *kvm, bool activate, ulong bit) { + if (!kvm_x86_ops->check_apicv_inhibit_reasons || + !kvm_x86_ops->check_apicv_inhibit_reasons(bit)) + return; + if (activate) { if (!test_and_clear_bit(bit, &kvm->arch.apicv_inhibit_reasons) || !kvm_apicv_activated(kvm)) |