Re: [Qemu-devel] [PATCH v4 1/2] i386: Add Intel Processor Trace feature support

2018-03-13 Thread Kang, Luwei
> > > > +if (!eax_0 || > > > > + ((ebx_0 & INTEL_PT_MINIMAL_EBX) != INTEL_PT_MINIMAL_EBX) || > > > > + ((ecx_0 & INTEL_PT_MINIMAL_ECX) != INTEL_PT_MINIMAL_ECX) || > > > > + ((eax_1 & INTEL_PT_MTC_BITMAP) != INTEL_PT_MTC_BITMAP) || > > > > + ((eax_1 &

Re: [Qemu-devel] [PATCH v4 1/2] i386: Add Intel Processor Trace feature support

2018-03-12 Thread Eduardo Habkost
On Mon, Mar 12, 2018 at 09:07:41AM +, Kang, Luwei wrote: > > > + > > > +if (!eax_0 || > > > + ((ebx_0 & INTEL_PT_MINIMAL_EBX) != INTEL_PT_MINIMAL_EBX) || > > > + ((ecx_0 & INTEL_PT_MINIMAL_ECX) != INTEL_PT_MINIMAL_ECX) || > > > + ((eax_1 & INTEL_PT_MTC_BITM

Re: [Qemu-devel] [PATCH v4 1/2] i386: Add Intel Processor Trace feature support

2018-03-12 Thread Kang, Luwei
> > + > > +if (!eax_0 || > > + ((ebx_0 & INTEL_PT_MINIMAL_EBX) != INTEL_PT_MINIMAL_EBX) || > > + ((ecx_0 & INTEL_PT_MINIMAL_ECX) != INTEL_PT_MINIMAL_ECX) || > > + ((eax_1 & INTEL_PT_MTC_BITMAP) != INTEL_PT_MTC_BITMAP) || > > + ((eax_1 & INTEL_PT_ADDR_

Re: [Qemu-devel] [PATCH v4 1/2] i386: Add Intel Processor Trace feature support

2018-03-09 Thread Eduardo Habkost
On Mon, Mar 05, 2018 at 12:48:35AM +0800, Luwei Kang wrote: > From: Chao Peng > > Expose Intel Processor Trace feature to guest. > > To make Intel PT live migration safe and get same CPUID information > with same CPU model on diffrent host. CPUID[14] is constant in this > patch. Intel PT use EPT