On 7/13/21 3:58 PM, Marc Zyngier wrote:
Hi all,
After some back and forth with Alexandre about patch #3 of this
series, it became apparent that some of the PMU code paths perform
some unnecessary masking, only to hide the fact that some of the PMU
register reset values are not architecturally compliant (RES0 bits get
set, among other things).
The first patch of this series addresses the reset value problem, the
second one rids us of the pointless masking, and Alexandre's patch
(which depends on the first two) is slapped on top, with a small
cosmetic change.
Thanks Marc.
You can add my Reviewed-by to patch 1 and 2:
Reviewed-by: Alexandre Chartre <alexandre.chartre@xxxxxxxxxx>
alex.
Alexandre Chartre (1):
KVM: arm64: Disabling disabled PMU counters wastes a lot of time
Marc Zyngier (2):
KVM: arm64: Narrow PMU sysreg reset values to architectural
requirements
KVM: arm64: Drop unnecessary masking of PMU registers
arch/arm64/kvm/pmu-emul.c | 8 +++---
arch/arm64/kvm/sys_regs.c | 52 ++++++++++++++++++++++++++++++++++-----
2 files changed, 50 insertions(+), 10 deletions(-)
