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KVM: SVM: Software reserved fields

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SVM added support for certain reserved fields to be used by
software or hypervisor. Add the following reserved fields:
  - VMCB offset 0x3e0 - 0x3ff
  - Clean bit 31
  - SVM intercept exit code 0xf0000000

Later patches will make use of this for supporting Hyper-V
nested virtualization enhancements.

Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com>
Message-Id: <a1f17a43a8e9e751a1a9cc0281649d71bdbf721b.1622730232.git.viremana@linux.microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Vineeth Pillai
2021-06-03 15:14:37 +00:00
committed by Paolo Bonzini
parent 3c86c0d3db
commit 59d21d67f3
3 changed files with 25 additions and 4 deletions
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3
arch/x86/include/uapi/asm/svm.h
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@@ -110,6 +110,9 @@
#define SVM_VMGEXIT_GET_AP_JUMP_TABLE 1
#define SVM_VMGEXIT_UNSUPPORTED_EVENT 0x8000ffff
/* Exit code reserved for hypervisor/software use */
#define SVM_EXIT_SW 0xf0000000
#define SVM_EXIT_ERR -1
#define SVM_EXIT_REASONS \