RE: [PATCH v8 00/14] Guest LBR Enabling

[Wang, Wei W]

On Friday, January 31, 2020 4:14 AM, Eduardo Habkost wrote:
> On Tue, Aug 06, 2019 at 03:16:00PM +0800, Wei Wang wrote:
> > Last Branch Recording (LBR) is a performance monitor unit (PMU)
> > feature on Intel CPUs that captures branch related info. This patch
> > series enables this feature to KVM guests.
> >
> > Each guest can be configured to expose this LBR feature to the guest
> > via userspace setting the enabling param in KVM_CAP_X86_GUEST_LBR
> (patch 3).
> 
> Are QEMU patches for enabling KVM_CAP_X86_GUEST_LBR being planned?
> 
Yes, we have a couple of qemu patches. That's planned to be reviewed after the kernel part gets finalized ð

Best,
Wei