[PATCH 0/3] kvm-arm64: Fix PMU reset values (and more)

From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Alexandre Chartre <alexandre.chartre@oracle.com>,
	Robin Murphy <robin.murphy@arm.com>,
	kernel-team@android.com
Subject: [PATCH 0/3] kvm-arm64: Fix PMU reset values (and more)
Date: Tue, 13 Jul 2021 14:58:57 +0100	[thread overview]
Message-ID: <20210713135900.1473057-1-maz@kernel.org> (raw)

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,

	M.

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(-)

-- 
2.30.2

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel