I'd like to note that the patch originally referenced in the description
of this bug by Chris is indeed in the 2.6.27 based Intrepid kernel.
[EMAIL PROTECTED]:~/ubuntu-intrepid$ git log -p
e693d71b46e64536581bf4884434fc1b8797e96f
commit e693d71b46e64536581bf4884434fc1b8797e96f
Author: Eli Collins <[EMAIL PROTECTED]>
Date: Sun Jun 1 20:24:40 2008 -0700
KVM: VMX: Clear CR4.VMXE in hardware_disable
Clear CR4.VMXE in hardware_disable. There's no reason to leave it set
after doing a VMXOFF.
VMware Workstation 6.5 checks CR4.VMXE as a proxy for whether the CPU is
in VMX mode, so leaving VMXE set means we'll refuse to power on. With this
change the user can power on after unloading the kvm-intel module. I
tested on kvm-67 and kvm-69.
Signed-off-by: Eli Collins <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 96445f3..02efbe7 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1036,6 +1036,7 @@ static void hardware_enable(void *garbage)
static void hardware_disable(void *garbage)
{
asm volatile (ASM_VMX_VMXOFF : : : "cc");
+ write_cr4(read_cr4() & ~X86_CR4_VMXE);
}
static __init int adjust_vmx_controls(u32 ctl_min, u32 ctl_opt,
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
Assignee: (unassigned) => Ubuntu Kernel Team (ubuntu-kernel-team)
Status: New => Triaged
--
kvm prevents running vmware player without rebooting
https://bugs.launchpad.net/bugs/252871
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