Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6da63cf95f6a19fe0a302232048452c96b178e45
Commit: 6da63cf95f6a19fe0a302232048452c96b178e45
Parent: 038881c8bec0e9a796d1782c56e29e7c2456626d
Author: Avi Kivity <[EMAIL PROTECTED]>
AuthorDate: Wed Mar 21 18:11:36 2007 +0200
Committer: Avi Kivity <[EMAIL PROTECTED]>
CommitDate: Thu May 3 10:52:26 2007 +0300
KVM: Don't allow the guest to turn off the cpu cache
The cpu cache is a host resource; the guest should not be able to turn
it off (even for itself).
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
drivers/kvm/svm.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index d3cc115..191bc45 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -737,8 +737,10 @@ static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned
long cr0)
}
#endif
vcpu->svm->cr0 = cr0;
- vcpu->svm->vmcb->save.cr0 = cr0 | CR0_PG_MASK | CR0_WP_MASK;
vcpu->cr0 = cr0;
+ cr0 |= CR0_PG_MASK | CR0_WP_MASK;
+ cr0 &= ~(CR0_CD_MASK | CR0_NW_MASK);
+ vcpu->svm->vmcb->save.cr0 = cr0;
}
static void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
-
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