* + kvm-vmx-hack-set_cr0_no_modeswitch-to-actually-do.patch added to -mm tree
@ 2007-02-21 20:49 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2007-02-21 20:49 UTC (permalink / raw)
To: mm-commits; +Cc: markus.rechberger, avi, joerg.roedel
The patch titled
KVM: vmx: hack set_cr0_no_modeswitch() to actually do modeswitch
has been added to the -mm tree. Its filename is
kvm-vmx-hack-set_cr0_no_modeswitch-to-actually-do.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: KVM: vmx: hack set_cr0_no_modeswitch() to actually do modeswitch
From: Markus Rechberger <markus.rechberger@amd.com>
The whole thing is rotten, but this allows vmx to boot with the guest reboot
fix.
Signed-off-by: Markus Rechberger <markus.rechberger@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/kvm/vmx.c | 3 +++
1 files changed, 3 insertions(+)
diff -puN drivers/kvm/vmx.c~kvm-vmx-hack-set_cr0_no_modeswitch-to-actually-do drivers/kvm/vmx.c
--- a/drivers/kvm/vmx.c~kvm-vmx-hack-set_cr0_no_modeswitch-to-actually-do
+++ a/drivers/kvm/vmx.c
@@ -791,6 +791,9 @@ static void vmx_set_cr0(struct kvm_vcpu
*/
static void vmx_set_cr0_no_modeswitch(struct kvm_vcpu *vcpu, unsigned long cr0)
{
+ if (!vcpu->rmode.active && !(cr0 & CR0_PE_MASK))
+ enter_rmode(vcpu);
+
vcpu->rmode.active = ((cr0 & CR0_PE_MASK) == 0);
update_exception_bitmap(vcpu);
vmcs_writel(CR0_READ_SHADOW, cr0);
_
Patches currently in -mm which might be from markus.rechberger@amd.com are
kvm-vmx-hack-set_cr0_no_modeswitch-to-actually-do.patch
kvm-use-page_private-set_page_private-apis.patch
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2007-02-21 20:49 + kvm-vmx-hack-set_cr0_no_modeswitch-to-actually-do.patch added to -mm tree akpm
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