KVM: x86: Add interrupt injection information to the kvm_entry tracepoint

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Add VMX/SVM specific interrupt injection info the kvm_entry tracepoint.
As is done with kvm_exit, gather the information via a kvm_x86_ops hook
to avoid the moderately costly VMREADs on VMX when the tracepoint isn't
enabled.

Opportunistically rename the parameters in the get_exit_info()
declaration to match the names used by both SVM and VMX.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20240910200350.264245-2-mlevitsk@redhat.com
[sean: drop is_guest_mode() change, use intr_info/error_code for names]
Signed-off-by: Sean Christopherson <seanjc@google.com>

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This commit is contained in:

Maxim Levitsky 2024-09-10 16:03:48 -04:00 • committed by Sean Christopherson

parent 62e41f6b4f

commit 3e633e7e7d

7 changed files with 43 additions and 3 deletions

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1

arch/x86/include/asm/kvm-x86-ops.h

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arch/x86/include/asm/kvm_host.h

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arch/x86/kvm/svm/svm.c

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arch/x86/kvm/trace.h

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arch/x86/kvm/vmx/main.c

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arch/x86/kvm/vmx/vmx.c

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arch/x86/kvm/vmx/x86_ops.h

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