Hi Daniel,
Thanks for your reviewing. I see your comments in the v7.
I have some doubts about what you said about the QAPI. Do you want me to
convert the current design into the QAPI parsing like the
IOThreadVirtQueueMapping? And we need to add new json definition in the
qapi/ directory?
Thanks,
Shaoqin
On 3/22/24 22:53, Daniel P. Berrangé wrote:
On Tue, Mar 12, 2024 at 03:48:49AM -0400, Shaoqin Huang wrote:
The KVM_ARM_VCPU_PMU_V3_FILTER provides the ability to let the VMM decide
which PMU events are provided to the guest. Add a new option
`kvm-pmu-filter` as -cpu sub-option to set the PMU Event Filtering.
Without the filter, all PMU events are exposed from host to guest by
default. The usage of the new sub-option can be found from the updated
document (docs/system/arm/cpu-features.rst).
Here is an example which shows how to use the PMU Event Filtering, when
we launch a guest by use kvm, add such command line:
# qemu-system-aarch64 \
-accel kvm \
-cpu host,kvm-pmu-filter="D:0x11-0x11"
I mistakenly sent some comments to the older v7 (despite this v8 already
existing) about the design of this syntax So for linking up the threads:
https://lists.nongnu.org/archive/html/qemu-devel/2024-03/msg04703.html
With regards,
Daniel
--
Shaoqin
