Mailing List Archive

[PATCH 6/9] nested vmx: enable save VMX-preemption timer feature for L1 VMM
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
---
xen/arch/x86/hvm/vmx/vvmx.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c
index e5d812a..9839642 100644
--- a/xen/arch/x86/hvm/vmx/vvmx.c
+++ b/xen/arch/x86/hvm/vmx/vvmx.c
@@ -530,8 +530,7 @@ static void nvmx_update_exit_control(struct vcpu *v, unsigned long host_cntrl)
shadow_cntrl = __get_vvmcs(nvcpu->nv_vvmcx, VM_EXIT_CONTROLS);
shadow_cntrl &= ~(VM_EXIT_SAVE_DEBUG_CNTRLS
| VM_EXIT_SAVE_GUEST_PAT
- | VM_EXIT_SAVE_GUEST_EFER
- | VM_EXIT_SAVE_PREEMPT_TIMER);
+ | VM_EXIT_SAVE_GUEST_EFER);
shadow_cntrl |= host_cntrl;
__vmwrite(VM_EXIT_CONTROLS, shadow_cntrl);
}
@@ -1318,8 +1317,9 @@ int nvmx_msr_read_intercept(unsigned int msr, u64 *msr_content)
/* 1-seetings */
/* bit 0-8, 10,11,13,14,16,17 must be 1 (refer G4 of SDM) */
tmp = 0x36dff;
- data = VM_EXIT_ACK_INTR_ON_EXIT;
- data |= VM_EXIT_IA32E_MODE;
+ data = VM_EXIT_ACK_INTR_ON_EXIT |
+ VM_EXIT_IA32E_MODE |
+ VM_EXIT_SAVE_PREEMPT_TIMER;
/* 0-settings */
data = ((data | tmp) << 32) | tmp;
break;
--
1.7.1


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