Hi, This series changes the way KVM communicates host pmu event changes to the hypervisor in nvhe and protected mode. Instead of accessing hyp data directly from the host, the data is passed to hyp via the loaded vcpu. This provides more isolation between the host and the hypervisor, and allows us to use pmu in protected mode. This series is based on kvmarm/next (8c22fd2d4cfa). Changes since V2 [1]: - Update the guest view of the pmu events after interrupts have been disabled Changes since V1 [2]: - Repack struct kvm_pmu to remove all (two) holes - Updating the guest's view of the pmu events before every vcpu run rather than vcpu load to avoid missing updates Thanks, /fuad [1] https://lore.kernel.org/all/20220509095500.2408785-1-tabba@xxxxxxxxxx/ [2] https://lore.kernel.org/linux-arm-kernel/20220408084052.3310931-1-tabba@xxxxxxxxxx/ Fuad Tabba (4): KVM: arm64: Wrapper for getting pmu_events KVM: arm64: Repack struct kvm_pmu to reduce size KVM: arm64: Pass pmu events to hyp via vcpu KVM: arm64: Reenable pmu in Protected Mode arch/arm64/include/asm/kvm_host.h | 8 ++----- arch/arm64/kvm/arm.c | 15 ++++++++++++ arch/arm64/kvm/hyp/nvhe/switch.c | 20 +++++----------- arch/arm64/kvm/pmu-emul.c | 3 +-- arch/arm64/kvm/pmu.c | 40 ++++++++++++++++++------------- include/kvm/arm_pmu.h | 10 ++++++-- 6 files changed, 55 insertions(+), 41 deletions(-) base-commit: 8c22fd2d4cfaab2ae3c5859496c894df58ab014b -- 2.36.0.512.ge40c2bad7a-goog _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
