Remaining work for PKS Implementation

[PATCH 0/2] Remaining work for PKS Implementation

Chenyi Qiang posted 2 patches 3 years, 3 months ago

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git fetch https://github.com/patchew-project/qemu tags/patchew/20210205083325.13880-1-chenyi.qiang@intel.com

Maintainers: Richard Henderson <richard.henderson@linaro.org>, Marcelo Tosatti <mtosatti@redhat.com>, Eduardo Habkost <ehabkost@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>

target/i386/cpu.c     |  4 ++--
target/i386/cpu.h     |  2 ++
target/i386/kvm/kvm.c | 13 +++++++++++++
3 files changed, 17 insertions(+), 2 deletions(-)

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[PATCH 0/2] Remaining work for PKS Implementation

Posted by Chenyi Qiang 3 years, 3 months ago

Protection Keys for Supervisor Pages (PKS) is a feature that extends the
Protection Keys architecture to support thread-specific permission
restrictions on superviosr pages, which works similar to an existing
feature named PKU (protecting user-mode pages).

Thanks Paolo to send out the PKS QEMU implemention at:
https://lore.kernel.org/qemu-devel/20210127093540.472624-1-pbonzini@redhat.com/

This patch series is just to add the remaining part, i.e. the support
for save/load PKRS and expose the vmx entry/exit load controls to guest.

Chenyi Qiang (2):
  target/i386: Add support for save/load IA32_PKRS MSR
  target/i386: Expose VMX entry/exit load pkrs control bits

 target/i386/cpu.c     |  4 ++--
 target/i386/cpu.h     |  2 ++
 target/i386/kvm/kvm.c | 13 +++++++++++++
 3 files changed, 17 insertions(+), 2 deletions(-)

-- 
2.17.1

Re: [PATCH 0/2] Remaining work for PKS Implementation

Posted by Paolo Bonzini 3 years, 3 months ago

On 05/02/21 09:33, Chenyi Qiang wrote:
> Protection Keys for Supervisor Pages (PKS) is a feature that extends the
> Protection Keys architecture to support thread-specific permission
> restrictions on superviosr pages, which works similar to an existing
> feature named PKU (protecting user-mode pages).
> 
> Thanks Paolo to send out the PKS QEMU implemention at:
> https://lore.kernel.org/qemu-devel/20210127093540.472624-1-pbonzini@redhat.com/
> 
> This patch series is just to add the remaining part, i.e. the support
> for save/load PKRS and expose the vmx entry/exit load controls to guest.
> 
> Chenyi Qiang (2):
>    target/i386: Add support for save/load IA32_PKRS MSR
>    target/i386: Expose VMX entry/exit load pkrs control bits
> 
>   target/i386/cpu.c     |  4 ++--
>   target/i386/cpu.h     |  2 ++
>   target/i386/kvm/kvm.c | 13 +++++++++++++
>   3 files changed, 17 insertions(+), 2 deletions(-)
> 

Queued, thanks.

Paolo