KVM: x86: do not scan IRR twice on APICv vmentry

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Calls to apic_find_highest_irr are scanning IRR twice, once
in vmx_sync_pir_from_irr and once in apic_search_irr.  Change
sync_pir_from_irr to get the new maximum IRR from kvm_apic_update_irr;
now that it does the computation, it can also do the RVI write.

In order to avoid complications in svm.c, make the callback optional.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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This commit is contained in:

Paolo Bonzini 2016-12-19 17:17:11 +01:00

parent 3d92789f69

commit 76dfafd536

5 changed files with 28 additions and 28 deletions

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2

arch/x86/include/asm/kvm_host.h

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arch/x86/kvm/lapic.c

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arch/x86/kvm/svm.c

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arch/x86/kvm/vmx.c

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arch/x86/kvm/x86.c

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