linux-toradex.git/arch/arm/kvm/perf.c, branch v3.18.3 Linux kernel for Apalis and Colibri modules ARM: KVM: add support for minimal host vs guest profiling 2013-04-29T04:44:01+00:00 Marc Zyngier marc.zyngier@arm.com 2013-03-05T03:18:00+00:00 210552c1bfe83122a480673660d5ca9821c944ae In order to be able to correctly profile what is happening on the host, we need to be able to identify when we're running on the guest, and log these events differently. Perf offers a simple way to register callbacks into KVM. Mimic what x86 does and enjoy being able to profile your KVM host. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu> 
In order to be able to correctly profile what is happening on the
host, we need to be able to identify when we're running on the guest,
and log these events differently.

Perf offers a simple way to register callbacks into KVM. Mimic what
x86 does and enjoy being able to profile your KVM host.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>