[PATCH v10 1/4] perf, kvm/{x86, s390}: Remove dependency on uapi/kvm_perf.h

Its better to remove the dependency on uapi/kvm_perf.h to allow dynamic discovery of kvm events (if its needed). To do this, some extern variables have been introduced with which we can keep the generic functions generic. Signed-off-by: Hemant Kumar Acked-by: Alexander

[PATCH v10 2/4] perf,kvm/{x86,s390}: Remove const from kvm_events_tp

This patch removes the "const" qualifier from kvm_events_tp declaration to account for the fact that some architectures may need to update this variable dynamically. For instance, powerpc will need to update this variable dynamically depending on the machine type. Signed-off-by: Hemant Kumar

[PATCH v9 4/4] perf,kvm/powerpc: Add support for HCALL reasons

Powerpc provides hcall events that also provides insights into guest behaviour. Enhance perf kvm stat to record and analyze hcall events. - To trace hcall events : perf kvm stat record - To show the results : perf kvm stat report --event=hcall The result shows the number of hypervisor

[PATCH v10 3/4] perf,kvm/powerpc: Port perf kvm stat to powerpc

perf kvm can be used to analyze guest exit reasons. This support already exists in x86. Hence, porting it to powerpc. - To trace KVM events : perf kvm stat record If many guests are running, we can track for a specific guest by using --pid as in : perf kvm stat record --pid - To see the

Re: [PATCH v2 32/32] virtio_ring: use virt_store_mb

On Fri, Jan 01, 2016 at 08:23:46PM +0300, Sergei Shtylyov wrote: > Hello. > > On 12/31/2015 10:09 PM, Michael S. Tsirkin wrote: > > >We need a full barrier after writing out event index, using > >virt_store_mb there seems better than open-coding. As usual, we need a > >wrapper to account for

Re: [PATCH v2 17/32] arm: define __smp_xxx

On Sat, Jan 02, 2016 at 11:24:38AM +, Russell King - ARM Linux wrote: > On Thu, Dec 31, 2015 at 09:07:59PM +0200, Michael S. Tsirkin wrote: > > This defines __smp_xxx barriers for arm, > > for use by virtualization. > > > > smp_xxx barriers are removed as they are > > defined correctly by