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From: Gleb Natapov <gleb@redhat.com>
To: avi@redhat.com
Cc: kvm@vger.kernel.org
Subject: [PATCH] don't call adjust_vmx_controls() second time
Date: Thu, 27 Aug 2009 18:41:30 +0300	[thread overview]
Message-ID: <20090827154130.GR30093@redhat.com> (raw)

Don't call adjust_vmx_controls() two times for the same control.
It restores options that was dropped earlier.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6b57eed..78101dd 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1262,12 +1262,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
 	if (_cpu_based_2nd_exec_control & SECONDARY_EXEC_ENABLE_EPT) {
 		/* CR3 accesses and invlpg don't need to cause VM Exits when EPT
 		   enabled */
-		min &= ~(CPU_BASED_CR3_LOAD_EXITING |
-			 CPU_BASED_CR3_STORE_EXITING |
-			 CPU_BASED_INVLPG_EXITING);
-		if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS,
-					&_cpu_based_exec_control) < 0)
-			return -EIO;
+		_cpu_based_exec_control &= ~(CPU_BASED_CR3_LOAD_EXITING |
+					     CPU_BASED_CR3_STORE_EXITING |
+					     CPU_BASED_INVLPG_EXITING);
 		rdmsr(MSR_IA32_VMX_EPT_VPID_CAP,
 		      vmx_capability.ept, vmx_capability.vpid);
 	}
--
			Gleb.

             reply	other threads:[~2009-08-27 15:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-27 15:41 Gleb Natapov [this message]
2009-08-27 16:21 ` [PATCH] don't call adjust_vmx_controls() second time Avi Kivity
2009-08-27 20:42   ` Andrew Theurer
2009-08-30  8:59     ` Avi Kivity
2009-08-31 13:05       ` Andrew Theurer
2009-08-31 13:52         ` Avi Kivity

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