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Message-ID: <20250626200459.1153955-4-coltonlewis@google.com>
Date: Thu, 26 Jun 2025 20:04:39 +0000
From: Colton Lewis <coltonlewis@...gle.com>
To: kvm@...r.kernel.org
Cc: Paolo Bonzini <pbonzini@...hat.com>, Jonathan Corbet <corbet@....net>,
Russell King <linux@...linux.org.uk>, Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>,
Mingwei Zhang <mizhang@...gle.com>, Joey Gouly <joey.gouly@....com>,
Suzuki K Poulose <suzuki.poulose@....com>, Zenghui Yu <yuzenghui@...wei.com>,
Mark Rutland <mark.rutland@....com>, Shuah Khan <shuah@...nel.org>, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
kvmarm@...ts.linux.dev, linux-perf-users@...r.kernel.org,
linux-kselftest@...r.kernel.org, Colton Lewis <coltonlewis@...gle.com>
Subject: [PATCH v3 03/22] KVM: arm64: Define PMI{CNTR,FILTR}_EL0 as undef_access
Because KVM isn't fully prepared to support these yet even though the
host PMUv3 driver does, define them as undef_access for now.
Signed-off-by: Colton Lewis <coltonlewis@...gle.com>
---
arch/arm64/kvm/sys_regs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 76c2f0da821f..99fdbe174202 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -3092,6 +3092,9 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_SVCR), undef_access, reset_val, SVCR, 0, .visibility = sme_visibility },
{ SYS_DESC(SYS_FPMR), undef_access, reset_val, FPMR, 0, .visibility = fp8_visibility },
+ { SYS_DESC(SYS_PMICNTR_EL0), undef_access },
+ { SYS_DESC(SYS_PMICFILTR_EL0), undef_access },
+
{ PMU_SYS_REG(PMCR_EL0), .access = access_pmcr, .reset = reset_pmcr,
.reg = PMCR_EL0, .get_user = get_pmcr, .set_user = set_pmcr },
{ PMU_SYS_REG(PMCNTENSET_EL0),
--
2.50.0.727.gbf7dc18ff4-goog
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