From c81c5f9e9856d3149ec81c099dfddca212a50e54 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 8 Jul 2016 11:53:38 +0200
Subject: KVM: VMX: reflect broken preemption timer in vmcs_config
Simplify cpu_has_vmx_preemption_timer. This is consistent with the
rest of setup_vmcs_config and preparatory for the next patch.
Tested-by: Wanpeng Li <kernellwp@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Change-Id: I3b33a881c5e47d5d3046e28374d0b0ca363ffad7
upstream-status: backport
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
---
kernel/arch/x86/kvm/vmx.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/arch/x86/kvm/vmx.c b/kernel/arch/x86/kvm/vmx.c
index 5da019be6..e55417710 100644
--- a/kernel/arch/x86/kvm/vmx.c
+++ b/kernel/arch/x86/kvm/vmx.c
@@ -1101,9 +1101,6 @@ static inline bool cpu_has_broken_vmx_preemption_timer(void)
static inline bool cpu_has_vmx_preemption_timer(void)
{
- if (cpu_has_broken_vmx_preemption_timer())
- return false;
-
return vmcs_config.pin_based_exec_ctrl &
PIN_BASED_VMX_PREEMPTION_TIMER;
}
@@ -3280,6 +3277,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
&_pin_based_exec_control) < 0)
return -EIO;
+ if (cpu_has_broken_vmx_preemption_timer())
+ _pin_based_exec_control &= ~PIN_BASED_VMX_PREEMPTION_TIMER;
+
if (!(_cpu_based_2nd_exec_control &
SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY) ||
!(_vmexit_control & VM_EXIT_ACK_INTR_ON_EXIT))
--
cgit