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Date: Tue, 12 Dec 2006 13:59:37 -0000
From: Avi Kivity <avi@...ranet.com>
To: kvm-devel@...ts.sourceforge.net
Cc: linux-kernel@...r.kernel.org, akpm@...l.org, mingo@...e.hu
Subject: [PATCH 3/3] KVM: Fix vmx hardware_enable() on macbooks
It seems macbooks set bit 2 but not bit 0, which is an "enabled but vmxon
will fault" setting.
Signed-off-by: Avi Kivity <avi@...ranet.com>
Index: linux-2.6/drivers/kvm/vmx.c
===================================================================
--- linux-2.6.orig/drivers/kvm/vmx.c
+++ linux-2.6/drivers/kvm/vmx.c
@@ -534,7 +534,7 @@ static __init void hardware_enable(void
u64 old;
rdmsrl(MSR_IA32_FEATURE_CONTROL, old);
- if ((old & 5) == 0)
+ if ((old & 4) == 0)
/* enable and lock */
wrmsrl(MSR_IA32_FEATURE_CONTROL, old | 5);
write_cr4(read_cr4() | CR4_VMXE); /* FIXME: not cpu hotplug safe */
-
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