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| author | Jim Mattson <jmattson@google.com> | 2018-10-16 14:29:20 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-10-17 19:07:38 +0200 |
| commit | 59073aaf6de0d2dacc2603cee6d1d6cd5592ac08 (patch) | |
| tree | 2e8d024ce9d6c72019b4ea73d01a811bf039e5b8 /arch/x86/include/asm/kvm_host.h | |
| parent | c851436a34cad09388f1303e11ccb6b9420e5692 (diff) | |
| download | lwn-59073aaf6de0d2dacc2603cee6d1d6cd5592ac08.tar.gz lwn-59073aaf6de0d2dacc2603cee6d1d6cd5592ac08.zip | |
kvm: x86: Add exception payload fields to kvm_vcpu_events
The per-VM capability KVM_CAP_EXCEPTION_PAYLOAD (to be introduced in a
later commit) adds the following fields to struct kvm_vcpu_events:
exception_has_payload, exception_payload, and exception.pending.
With this capability set, all of the details of vcpu->arch.exception,
including the payload for a pending exception, are reported to
userspace in response to KVM_GET_VCPU_EVENTS.
With this capability clear, the original ABI is preserved, and the
exception.injected field is set for either pending or injected
exceptions.
When userspace calls KVM_SET_VCPU_EVENTS with
KVM_CAP_EXCEPTION_PAYLOAD clear, exception.injected is no longer
translated to exception.pending. KVM_SET_VCPU_EVENTS can now only
establish a pending exception when KVM_CAP_EXCEPTION_PAYLOAD is set.
Reported-by: Jim Mattson <jmattson@google.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 20f7c994afeb..55e51ff7e421 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -919,6 +919,7 @@ struct kvm_arch { bool x2apic_broadcast_quirk_disabled; bool guest_can_read_msr_platform_info; + bool exception_payload_enabled; }; struct kvm_vm_stat { |