diff options
| author | Xiao Guangrong <guangrong.xiao@linux.intel.com> | 2015-09-09 14:05:51 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-10-01 15:06:35 +0200 |
| commit | 8b3e34e46aca9b6d349b331cd9cf71ccbdc91b2e (patch) | |
| tree | e908c0be3a3ea4649fc767df6ad03306e9116edf /arch/x86/include | |
| parent | eb1c31b46800a476644cd63ab3bc7ef918b0a917 (diff) | |
| download | op-kernel-dev-8b3e34e46aca9b6d349b331cd9cf71ccbdc91b2e.zip op-kernel-dev-8b3e34e46aca9b6d349b331cd9cf71ccbdc91b2e.tar.gz | |
KVM: x86: add pcommit support
Pass PCOMMIT CPU feature to guest to enable PCOMMIT instruction
Currently we do not catch pcommit instruction for L1 guest and
allow L1 to catch this instruction for L2 if, as required by the spec,
L1 can enumerate the PCOMMIT instruction via CPUID:
| IA32_VMX_PROCBASED_CTLS2[53] (which enumerates support for the
| 1-setting of PCOMMIT exiting) is always the same as
| CPUID.07H:EBX.PCOMMIT[bit 22]. Thus, software can set PCOMMIT exiting
| to 1 if and only if the PCOMMIT instruction is enumerated via CPUID
The spec can be found at
https://software.intel.com/sites/default/files/managed/0d/53/319433-022.pdf
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/vmx.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/uapi/asm/vmx.h | 4 |
2 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h index 448b7ca..d25f32a 100644 --- a/arch/x86/include/asm/vmx.h +++ b/arch/x86/include/asm/vmx.h @@ -72,7 +72,7 @@ #define SECONDARY_EXEC_SHADOW_VMCS 0x00004000 #define SECONDARY_EXEC_ENABLE_PML 0x00020000 #define SECONDARY_EXEC_XSAVES 0x00100000 - +#define SECONDARY_EXEC_PCOMMIT 0x00200000 #define PIN_BASED_EXT_INTR_MASK 0x00000001 #define PIN_BASED_NMI_EXITING 0x00000008 diff --git a/arch/x86/include/uapi/asm/vmx.h b/arch/x86/include/uapi/asm/vmx.h index 37fee27..5b15d94 100644 --- a/arch/x86/include/uapi/asm/vmx.h +++ b/arch/x86/include/uapi/asm/vmx.h @@ -78,6 +78,7 @@ #define EXIT_REASON_PML_FULL 62 #define EXIT_REASON_XSAVES 63 #define EXIT_REASON_XRSTORS 64 +#define EXIT_REASON_PCOMMIT 65 #define VMX_EXIT_REASONS \ { EXIT_REASON_EXCEPTION_NMI, "EXCEPTION_NMI" }, \ @@ -126,7 +127,8 @@ { EXIT_REASON_INVVPID, "INVVPID" }, \ { EXIT_REASON_INVPCID, "INVPCID" }, \ { EXIT_REASON_XSAVES, "XSAVES" }, \ - { EXIT_REASON_XRSTORS, "XRSTORS" } + { EXIT_REASON_XRSTORS, "XRSTORS" }, \ + { EXIT_REASON_PCOMMIT, "PCOMMIT" } #define VMX_ABORT_SAVE_GUEST_MSR_FAIL 1 #define VMX_ABORT_LOAD_HOST_MSR_FAIL 4 |
