KVM: nSVM: inject exceptions via svm_check_nested_events

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This allows exceptions injected by the emulator to be properly delivered
as vmexits.  The code also becomes simpler, because we can just let all
L0-intercepted exceptions go through the usual path.  In particular, our
emulation of the VMX #DB exit qualification is very much simplified,
because the vmexit injection path can use kvm_deliver_exception_payload
to update DR6.

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

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This commit is contained in:

Paolo Bonzini 2020-05-16 08:42:28 -04:00

parent c9d40913ac

commit 7c86663b68

5 changed files with 58 additions and 103 deletions

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2

arch/x86/include/asm/kvm_host.h

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138

arch/x86/kvm/svm/nested.c

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arch/x86/kvm/svm/svm.c

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arch/x86/kvm/svm/svm.h

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arch/x86/kvm/x86.c

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