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| author |   Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2019-11-14 14:15:15 -0600 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2020-02-05 15:17:43 +0100 |
| commit | f3515dc3bef81e96bdb2ac93ef8fd20b1c2aaae5 (patch) | |
| tree | 0b667f6fce1bde78c210102ed3e97023deaa9414 /arch/x86/include/asm | |
| parent | svm: Deactivate AVIC when launching guest with nested SVM support (diff) | |
| download | linux-dev-f3515dc3bef81e96bdb2ac93ef8fd20b1c2aaae5.tar.xz linux-dev-f3515dc3bef81e96bdb2ac93ef8fd20b1c2aaae5.zip | |
svm: Temporarily deactivate AVIC during ExtINT handling
AMD AVIC does not support ExtINT. Therefore, AVIC must be temporary
deactivated and fall back to using legacy interrupt injection via vINTR
and interrupt window.
Also, introduce APICV_INHIBIT_REASON_IRQWIN to be used for this reason.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
[Rename svm_request_update_avic to svm_toggle_avic_for_extint. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index ce19dea5f2dd..2bd7fd96d994 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -878,6 +878,7 @@ enum kvm_irqchip_mode { #define APICV_INHIBIT_REASON_DISABLE 0 #define APICV_INHIBIT_REASON_HYPERV 1 #define APICV_INHIBIT_REASON_NESTED 2 +#define APICV_INHIBIT_REASON_IRQWIN 3 struct kvm_arch { unsigned long n_used_mmu_pages; |