linux

Commit Graph

Author	SHA1	Message	Date
Avi Kivity	411c588dfb	KVM: MMU: Adjust shadow paging to work when SMEP=1 and CR0.WP=0 When CR0.WP=0, we sometimes map user pages as kernel pages (to allow the kernel to write to them). Unfortunately this also allows the kernel to fetch from these pages, even if CR4.SMEP is set. Adjust for this by also setting NX on the spte in these circumstances. Signed-off-by: Avi Kivity <avi@redhat.com>	2011-07-12 13:16:26 +03:00
Rob Landley	ed16648eb5	Move kvm, uml, and lguest subdirectories under a common "virtual" directory, I.E: cd Documentation mkdir virtual git mv kvm uml lguest virtual Signed-off-by: Rob Landley <rlandley@parallels.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>	2011-05-06 09:22:02 -07:00

Author

SHA1

Message

Date

Avi Kivity

411c588dfb

KVM: MMU: Adjust shadow paging to work when SMEP=1 and CR0.WP=0

When CR0.WP=0, we sometimes map user pages as kernel pages (to allow
the kernel to write to them).  Unfortunately this also allows the kernel
to fetch from these pages, even if CR4.SMEP is set.

Adjust for this by also setting NX on the spte in these circumstances.

Signed-off-by: Avi Kivity <avi@redhat.com>

2011-07-12 13:16:26 +03:00

Rob Landley

ed16648eb5

Move kvm, uml, and lguest subdirectories under a common "virtual" directory, I.E:

cd Documentation
  mkdir virtual
  git mv kvm uml lguest virtual

Signed-off-by: Rob Landley <rlandley@parallels.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>

2011-05-06 09:22:02 -07:00

2 Commits