tree 3df20342cf7ae5df7afaed1116f3dd242cccefe2
parent a86b5505304404dc5fc5e62a6dc294706e525003
author Shannon Zhao <shannon.zhao@linaro.org> 1449559746 +0800
committer Marc Zyngier <marc.zyngier@arm.com> 1456770860 +0000

arm64: KVM: Add access handler for event counter register

These kind of registers include PMEVCNTRn, PMCCNTR and PMXEVCNTR which
is mapped to PMEVCNTRn.

The access handler translates all aarch32 register offsets to aarch64
ones and uses vcpu_sys_reg() to access their values to avoid taking care
of big endian.

When reading these registers, return the sum of register value and the
value perf event counts.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>