On Wed, 17 Jan 2024, Eric Auger wrote:
On 1/15/24 09:01, Shaoqin Huang wrote:
+ /*
+ * The filter only needs to be initialized through one vcpu ioctl and it
+ * will affect all other vcpu in the vm.
+ */
+ if (pmu_filter_init) {
I think I commented on that on the v4. Maybe I missed your reply. You
sure you don't need to call it for each vcpu?
From (kernel) commit d7eec2360e3 ("KVM: arm64: Add PMU event filtering
infrastructure"):
Note that although the ioctl is per-vcpu, the map of allowed events is
global to the VM (it can be setup from any vcpu until the vcpu PMU is
initialized).
Sebastian
