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Author SHA1 Message Date
Wei Huang bceed21d23
arm: Add an option to turn on/off vPMU support 
This patch adds a pmu=[on/off] option to enable/disable vPMU support
in guest vCPU. It allows virt tools, such as libvirt, to determine the
exsitence of vPMU and configure it. Note this option is only available
for cortex-a57/cortex-53/ host CPUs, but unavailable on ARMv7 and other
processors. Also even though "pmu=" option is available for TCG mode,
setting it doesn't turn PMU on.

Backports commit 929e754d5a621cd53f30e69b766ccf381b58d124 from qemu
 2018-02-28 08:49:23 -05:00
Nguyen Anh Quynh 344d016104 import 2015-08-21 15:04:50 +08:00