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Wed, 30 Apr 2025 20:42:55 -0700 (PDT) X-Google-Smtp-Source: AGHT+IE6XeA16VOaq6zL1nFcqHpvVwTJjX64McCuJNjLU9eHJvxIX6JXOCTvpbcT/Z0Dp6bPnFYLIg== X-Received: by 2002:a17:902:f548:b0:21f:4649:fd49 with SMTP id d9443c01a7336-22e0863efbfmr14693805ad.49.1746070975009; Wed, 30 Apr 2025 20:42:55 -0700 (PDT) Received: from [192.168.68.51] ([180.233.125.65]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-22db5102b03sm130327715ad.194.2025.04.30.20.42.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 30 Apr 2025 20:42:54 -0700 (PDT) Message-ID: Date: Thu, 1 May 2025 13:42:46 +1000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 36/43] arm64: RME: Initialize PMCR.N with number counter supported by RMM To: Steven Price , kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: Jean-Philippe Brucker , Catalin Marinas , Marc Zyngier , Will Deacon , James Morse , Oliver Upton , Suzuki K Poulose , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev, Ganapatrao Kulkarni , Shanker Donthineni , Alper Gun , "Aneesh Kumar K . V" References: <20250416134208.383984-1-steven.price@arm.com> <20250416134208.383984-37-steven.price@arm.com> Content-Language: en-US From: Gavin Shan In-Reply-To: <20250416134208.383984-37-steven.price@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 4/16/25 11:41 PM, Steven Price wrote: > From: Jean-Philippe Brucker > > Provide an accurate number of available PMU counters to userspace when > setting up a Realm. > > Signed-off-by: Jean-Philippe Brucker > Signed-off-by: Steven Price > --- > arch/arm64/include/asm/kvm_rme.h | 1 + > arch/arm64/kvm/pmu-emul.c | 3 +++ > arch/arm64/kvm/rme.c | 5 +++++ > 3 files changed, 9 insertions(+) > Reviewed-by: Gavin Shan