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AJvYcCWMPe8B5GGK22tAGTgvNXZ46ZGpFKd572VOyuSG7vsCwz/d6KfcVtQR9K5Mn+h4SjdjnCatnw/1ON8qAss=@vger.kernel.org X-Gm-Message-State: AOJu0YwFt86U+omHiBGCY2tY1Qnwo4nQsvoHaVEl9V9wY3E0ooBWWIta Wh3v9f2khFEln6+9HyICbHAcEPwyaJGi7K0Ultb02Efq1hMjJxP+FuRKagrgzeJ6Lx7EuyZcRz6 uhnNcuny5OiLMfajQZ/GCig== X-Google-Smtp-Source: AGHT+IFW0oHYaYpDIBDZYmTqCX5wHO/vO6Eo9gvoYMFEfcVe8Gc0SJN49mBNwuBaONnBa7e5yp3hTafs+zGb5o3m X-Received: from wrno12.prod.google.com ([2002:adf:eacc:0:b0:3b8:e019:9f6b]) (user=vdonnefort job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6000:220b:b0:3b7:8412:4540 with SMTP id ffacd0b85a97d-3c49596dddcmr1244691f8f.27.1755764080019; Thu, 21 Aug 2025 01:14:40 -0700 (PDT) Date: Thu, 21 Aug 2025 09:14:03 +0100 In-Reply-To: <20250821081412.1008261-1-vdonnefort@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250821081412.1008261-1-vdonnefort@google.com> X-Mailer: git-send-email 2.51.0.rc2.233.g662b1ed5c5-goog Message-ID: <20250821081412.1008261-16-vdonnefort@google.com> Subject: [PATCH v6 15/24] KVM: arm64: Support unaligned fixmap in the pKVM hyp From: Vincent Donnefort To: rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, linux-trace-kernel@vger.kernel.org, maz@kernel.org, oliver.upton@linux.dev, joey.gouly@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com Cc: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, jstultz@google.com, qperret@google.com, will@kernel.org, aneesh.kumar@kernel.org, kernel-team@android.com, linux-kernel@vger.kernel.org, Vincent Donnefort Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Return the fixmap VA with the page offset, instead of the page base address. This allows to use hyp_fixmap_map() seamlessly regardless of the address alignment. Signed-off-by: Vincent Donnefort diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c index ae8391baebc3..75014dc7d82e 100644 --- a/arch/arm64/kvm/hyp/nvhe/mm.c +++ b/arch/arm64/kvm/hyp/nvhe/mm.c @@ -239,7 +239,7 @@ static void *fixmap_map_slot(struct hyp_fixmap_slot *sl= ot, phys_addr_t phys) WRITE_ONCE(*ptep, pte); dsb(ishst); =20 - return (void *)slot->addr; + return (void *)slot->addr + offset_in_page(phys); } =20 void *hyp_fixmap_map(phys_addr_t phys) --=20 2.51.0.rc2.233.g662b1ed5c5-goog