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| author | Santosh Shukla <santosh.shukla@amd.com> | 2023-02-27 11:40:14 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-03-23 03:37:44 +0300 |
| commit | 1c4522ab13b163173971d8b0c0eb0b253b1b7f28 (patch) | |
| tree | 1c24fc7962e9edd4d4a140d9b40d8e7bd22a9f9d /tools/perf/scripts/python/stackcollapse.py | |
| parent | 3763bf58029f3459d7187f687eadfc8eb08e5ca8 (diff) | |
| download | linux-1c4522ab13b163173971d8b0c0eb0b253b1b7f28.tar.xz | |
KVM: SVM: Add definitions for new bits in VMCB::int_ctrl related to vNMI
Add defines for three new bits in VMVC::int_ctrl that are part of SVM's
Virtual NMI (vNMI) support:
V_NMI_PENDING_MASK(11) - Virtual NMI is pending
V_NMI_BLOCKING_MASK(12) - Virtual NMI is masked
V_NMI_ENABLE_MASK(26) - Enable NMI virtualization
To "inject" an NMI, the hypervisor (KVM) sets V_NMI_PENDING. When the
CPU services the pending vNMI, hardware clears V_NMI_PENDING and sets
V_NMI_BLOCKING, e.g. to indicate that the vCPU is handling an NMI.
Hardware clears V_NMI_BLOCKING upon successful execution of IRET, or if a
VM-Exit occurs while delivering the virtual NMI.
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Santosh Shukla <santosh.shukla@amd.com>
Link: https://lore.kernel.org/r/20230227084016.3368-10-santosh.shukla@amd.com
[sean: massage changelog]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions