KVM and PaX

Discuss usability issues, general maintenance, and general support issues for a grsecurity-enabled system.

KVM and PaX

Postby evilangel » Wed Dec 17, 2008 2:12 pm

Hey all,

I am wondering of using a CPU with AMD-V feature to run KVM.
In such a case, are my guest OS able to use the NX bit of the CPU, or is it limited to the host OS ?

Thanks
evilangel
 
Posts: 59
Joined: Thu May 15, 2008 7:57 pm

Re: KVM and PaX

Postby PaX Team » Wed Dec 17, 2008 6:03 pm

evilangel wrote:I am wondering of using a CPU with AMD-V feature to run KVM.
In such a case, are my guest OS able to use the NX bit of the CPU, or is it limited to the host OS ?
it always depends on whether the hypervisor makes the NX bit available to guest kernels or not. iirc, KVM does.
PaX Team
 
Posts: 2310
Joined: Mon Mar 18, 2002 4:35 pm

Re: KVM and PaX

Postby evilangel » Mon Feb 02, 2009 11:08 am

Thanks
evilangel
 
Posts: 59
Joined: Thu May 15, 2008 7:57 pm


Return to grsecurity support