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 -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
