Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1210861

[PATCH 4/9] KVM: VMX: drop rdtscp_enabled check in prepare_vmcs02()

From Xiao Guangrong <guangrong.xiao@linux.intel.com>
Newsgroups linux.kernel
Subject [PATCH 4/9] KVM: VMX: drop rdtscp_enabled check in prepare_vmcs02()
Date 2015-08-21 07:00 +0200
Message-ID <pZMAQ-1LC-27@gated-at.bofh.it> (permalink)
References <pZMAO-1LC-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


SECONDARY_EXEC_RDTSCP set for L2 guest comes from vmcs12

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
---
 arch/x86/kvm/vmx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index b526c61..f7a721e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -9313,8 +9313,7 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 
 	if (cpu_has_secondary_exec_ctrls()) {
 		exec_control = vmx_secondary_exec_control(vmx);
-		if (!vmx->rdtscp_enabled)
-			exec_control &= ~SECONDARY_EXEC_RDTSCP;
+
 		/* Take the following fields only from vmcs12 */
 		exec_control &= ~(SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
 				  SECONDARY_EXEC_RDTSCP |
-- 
2.4.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH 0/9] KVM: x86: enable cflushopt/clwb/pcommit and simplify code Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-21 07:00 +0200
  [PATCH 9/9] KVM: VMX: drop rdtscp_enabled field Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-21 07:00 +0200
  [PATCH 8/9] KVM: VMX: introduce set_clear_2nd_exec_ctrl() Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-21 07:00 +0200
  [PATCH 3/9] KVM: x86: add pcommit support Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-21 07:00 +0200
  [PATCH 1/9] KVM: MMU: fix use uninitialized value Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-21 07:00 +0200
  [PATCH 7/9] KVM: VMX: unify SECONDARY_VM_EXEC_CONTROL update Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-21 07:00 +0200
  [PATCH 4/9] KVM: VMX: drop rdtscp_enabled check in prepare_vmcs02() Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-21 07:00 +0200
  [PATCH 5/9] KVM: VMX: simplify rdtscp handling in vmx_cpuid_update() Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-08-21 07:00 +0200

csiph-web