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KVM: VMX: Enable Virtual Processor Identification (VPID)

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To allow TLB entries to be retained across VM entry and VM exit, the VMM
can now identify distinct address spaces through a new virtual-processor ID
(VPID) field of the VMCS.

[avi: drop vpid_sync_all()]
[avi: add "cc" to asm constraints]

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Sheng Yang 2008-01-17 15:14:33 +08:00 • committed by Avi Kivity
commit 2384d2b326
3 changed files with 82 additions and 5 deletions
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1
include/asm-x86/kvm_host.h
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@ -601,6 +601,7 @@ static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
#define ASM_VMX_INVVPID ".byte 0x66, 0x0f, 0x38, 0x81, 0x08"
#define MSR_IA32_TIME_STAMP_COUNTER 0x010