Re: [Qemu-devel] [PATCH V3 1/2] arm64: Add an option to turn on/off vPMU support

2016-09-15 Thread Andrew Jones
On Thu, Sep 15, 2016 at 01:04:15AM -0400, Wei Huang wrote: > This patch adds a pmu=[on/off] option to enable/disable vPMU support > in guest vCPU. This option is only available for cortex-a57/cortex-53/ > host under both TCG and KVM modes, but unavailable on ARMv7 and other > processors. It allows

[Qemu-devel] [PATCH V3 1/2] arm64: Add an option to turn on/off vPMU support

2016-09-14 Thread Wei Huang
This patch adds a pmu=[on/off] option to enable/disable vPMU support in guest vCPU. This option is only available for cortex-a57/cortex-53/ host under both TCG and KVM modes, but unavailable on ARMv7 and other processors. It allows virt tools, such as libvirt, to determine the exsitence of vPMU and