From: Ingo Molnar
Sent: Monday, May 30, 2011 3:41 PM
* Yang, Wei Y wei.y.y...@intel.com wrote:
This patch removes SMEP bit from CR4_RESERVED_BITS.
I'm wondering, what is the best-practice way for tools/kvm/ to set
SMEP for the guest kernel automatically, even if the guest kernel
* Tian, Kevin kevin.t...@intel.com wrote:
From: Ingo Molnar
Sent: Monday, May 30, 2011 3:41 PM
* Yang, Wei Y wei.y.y...@intel.com wrote:
This patch removes SMEP bit from CR4_RESERVED_BITS.
I'm wondering, what is the best-practice way for tools/kvm/ to set
SMEP for the
* Yang, Wei Y wei.y.y...@intel.com wrote:
This patch removes SMEP bit from CR4_RESERVED_BITS.
I'm wondering, what is the best-practice way for tools/kvm/ to set
SMEP for the guest kernel automatically, even if the guest kernel
itsef has not requested SMEP?
The portion i'm worried about are
On 05/30/2011 10:40 AM, Ingo Molnar wrote:
* Yang, Wei Ywei.y.y...@intel.com wrote:
This patch removes SMEP bit from CR4_RESERVED_BITS.
I'm wondering, what is the best-practice way for tools/kvm/ to set
SMEP for the guest kernel automatically, even if the guest kernel
itsef has not
* Avi Kivity a...@redhat.com wrote:
On 05/30/2011 10:40 AM, Ingo Molnar wrote:
* Yang, Wei Ywei.y.y...@intel.com wrote:
This patch removes SMEP bit from CR4_RESERVED_BITS.
I'm wondering, what is the best-practice way for tools/kvm/ to set
SMEP for the guest kernel automatically, even
On 05/30/2011 11:05 AM, Ingo Molnar wrote:
* Avi Kivitya...@redhat.com wrote:
On 05/30/2011 10:40 AM, Ingo Molnar wrote:
* Yang, Wei Ywei.y.y...@intel.com wrote:
This patch removes SMEP bit from CR4_RESERVED_BITS.
I'm wondering, what is the best-practice way for tools/kvm/
* Avi Kivity a...@redhat.com wrote:
Another option would be to try to set the SMEP bit *before* we
enable paging. In theory this should not confuse a Linux guest -
and while i have not tested it i *think* we let it survive in the
saved_cr4_features shadow variable. That would make
On 05/30/2011 11:52 AM, Ingo Molnar wrote:
* Avi Kivitya...@redhat.com wrote:
Another option would be to try to set the SMEP bit *before* we
enable paging. In theory this should not confuse a Linux guest -
and while i have not tested it i *think* we let it survive in the
* Avi Kivity a...@redhat.com wrote:
On 05/30/2011 11:52 AM, Ingo Molnar wrote:
* Avi Kivitya...@redhat.com wrote:
Another option would be to try to set the SMEP bit *before* we
enable paging. In theory this should not confuse a Linux guest -
and while i have not tested it i
On 05/30/2011 11:57 AM, Ingo Molnar wrote:
Oh, it wasn't clear to me that this was your preference as well - and
i didnt see such a capability in this series [let me know if i
blindly missed it] so i was wondering what the battle plan was fr
that :-)
There is no plan. If someone is
This patch removes SMEP bit from CR4_RESERVED_BITS.
Signed-off-by: Yang, Wei wei.y.y...@intel.com
Signed-off-by: Shan, Haitao haitao.s...@intel.com
Signed-off-by: Li, Xin xin...@intel.com
---
arch/x86/include/asm/kvm_host.h |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff
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