KVM: VMX: Update MTF and ICEBP comments to document KVM's subtle behavior

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Document the oddities of ICEBP interception (trap-like #DB is intercepted
as a fault-like exception), and how using VMX's inner "skip" helper
deliberately bypasses the pending MTF and single-step #DB logic.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20220830231614.3580124-24-seanjc@google.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2022-08-30 23:16:10 +00:00 • committed by Paolo Bonzini

parent 7055fb1131

commit 65ec8f01be

1 changed files with 11 additions and 5 deletions

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arch/x86/kvm/vmx/vmx.c

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