… > On KVM side. we save the host PMU CSRs into structure kvm_context. > If the host supports the PMU feature. When entering guest mode. > we save the host PMU CSRs and restore the guest PMU CSRs. … I suggest to reconsider the usage of a few dots in such a wording approach. … Signed-off-by: Song Gao <gaosong@xxxxxxxxxxx> v2->V3: … * Please put your version descriptions behind a marker line. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.9-rc5#n713 * How do you think about to avoid the repetition of version identifiers here? Regards, Markus