linux-kernel - Re: [RFC PATCH 4/4] perf: arm_pmuv3: Keep out of guest counter partition

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Message-ID: <gsnt5xly372p.fsf@coltonlewis-kvm.c.googlers.com>
Date: Tue, 28 Jan 2025 22:30:06 +0000
From: Colton Lewis <coltonlewis@...gle.com>
To: Suzuki K Poulose <suzuki.poulose@....com>
Cc: kvm@...r.kernel.org, linux@...linux.org.uk, catalin.marinas@....com, 
	will@...nel.org, maz@...nel.org, oliver.upton@...ux.dev, joey.gouly@....com, 
	yuzenghui@...wei.com, mark.rutland@....com, pbonzini@...hat.com, 
	shuah@...nel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, kvmarm@...ts.linux.dev, 
	linux-kselftest@...r.kernel.org
Subject: Re: [RFC PATCH 4/4] perf: arm_pmuv3: Keep out of guest counter partition

Suzuki K Poulose <suzuki.poulose@....com> writes:

> On 27/01/2025 22:20, Colton Lewis wrote:
>>    	/* Disable all counters */
>> -	armv8pmu_pmcr_write(armv8pmu_pmcr_read() & ~ARMV8_PMU_PMCR_E);
>> +	if (cpu_pmu->partitioned)
>> +		armv8pmu_mdcr_write(armv8pmu_pmcr_read() & ~ARMV8_PMU_MDCR_HPME);

> typo: s/armv8pmu_pmcr_read/armv8pmu_mdcr_read

Good catch. Thanks