KVM: x86: Add EMULTYPE_PF when emulation is triggered by a page fault

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Add a new emulation type flag to explicitly mark emulation related to a
page fault.  Move the propation of the GPA into the emulator from the
page fault handler into x86_emulate_instruction, using EMULTYPE_PF as an
indicator that cr2 is valid.  Similarly, don't propagate cr2 into the
exception.address when it's *not* valid.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-02-18 15:03:08 -08:00 • committed by Paolo Bonzini

parent 999eabcc89

commit 92daa48b34

3 changed files with 30 additions and 17 deletions

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12

arch/x86/include/asm/kvm_host.h

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10

arch/x86/kvm/mmu/mmu.c

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25

arch/x86/kvm/x86.c

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