[PATCH v4 5/5] x86,kaslr: Use MSR_KVM_GET_RNG_SEED for KASLR if available

2014-07-17 Thread Andy Lutomirski
It's considerably better than any of the alternatives on KVM. Rather than reinventing all of the cpu feature query code, this fixes native_cpuid to work in PIC objects. I haven't combined it with boot/cpuflags.c's cpuid implementation: including asm/processor.h from boot/cpuflags.c results in a

Re: [PATCH v4 5/5] x86,kaslr: Use MSR_KVM_GET_RNG_SEED for KASLR if available

2014-07-17 Thread Kees Cook
On Thu, Jul 17, 2014 at 11:22 AM, Andy Lutomirski l...@amacapital.net wrote: It's considerably better than any of the alternatives on KVM. Rather than reinventing all of the cpu feature query code, this fixes native_cpuid to work in PIC objects. I haven't combined it with boot/cpuflags.c's