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| author | Kajol Jain <kjain@linux.ibm.com> | 2022-07-11 09:19:27 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-07-20 22:28:31 +1000 |
| commit | 4008d54e29531813e800580f8309133b9b14a921 (patch) | |
| tree | e26e7f09f42bba0319457b380334971a6586db47 /arch/powerpc/kvm | |
| parent | db5360840f09eded71009a981084ab10a93a08d8 (diff) | |
| download | linux-stable-4008d54e29531813e800580f8309133b9b14a921.tar.gz linux-stable-4008d54e29531813e800580f8309133b9b14a921.tar.bz2 linux-stable-4008d54e29531813e800580f8309133b9b14a921.zip | |
powerpc/kvm: Remove comment related to moving PMU code to perf subsystem
Commit aabcaf6ae2a0 ("KVM: PPC: Book3S HV P9: Move host OS save/restore
functions to built-in") added a comment in switch_pmu_to_guest
function, indicating possibility of moving PMU handling code
to perf subsystem. But perf subsystem code compilation depends upon
the enablement of CONFIG_PERF_EVENTS whereas, kvm code don't have
any dependency on this config.
Patch remove this comment as switch_pmu_to_guest functionality is
needed even if perf subsystem is disabled.
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220711034927.213192-2-kjain@linux.ibm.com
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_p9_perf.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_p9_perf.c b/arch/powerpc/kvm/book3s_hv_p9_perf.c index da3135cab9ea..44d24cca3df1 100644 --- a/arch/powerpc/kvm/book3s_hv_p9_perf.c +++ b/arch/powerpc/kvm/book3s_hv_p9_perf.c @@ -44,12 +44,6 @@ void switch_pmu_to_guest(struct kvm_vcpu *vcpu, /* Save host */ if (ppc_get_pmu_inuse()) { - /* - * It might be better to put PMU handling (at least for the - * host) in the perf subsystem because it knows more about what - * is being used. - */ - /* POWER9, POWER10 do not implement HPMC or SPMC */ host_os_sprs->mmcr0 = mfspr(SPRN_MMCR0); |