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AJvYcCXqM0Nbctp4nR3bFNNc+iIcb3usNTXy8/UNppDkNWVVaQiI11kvCh2zWFGL9mKJU5PDfHVRxed53B0xNAQ=@vger.kernel.org X-Gm-Message-State: AOJu0YzAHOzMWksmq8vS3dsYycl+65qbGmhTwjmikQHu2/OzC0SChHXz gmxUF7QWyWiV0WqX+3QC26V4w+tZJUNzetgRDNzSjxL/GonUj042jyKc1YdrbH8tDy76hd/gFap Xvr3AKgB8cOOKpAq92Ro14Q== X-Google-Smtp-Source: AGHT+IFsYzxWE1q+iyfd/CPcAE+BH9Qt6DCpr8RRj96mk+HtmlAuCb4ka3fjLLxAs1Crrs+qBq6aGz3zEY320EBD X-Received: from wmbdn6.prod.google.com ([2002:a05:600c:6546:b0:46e:6605:3ac2]) (user=vdonnefort job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:83ca:b0:45d:5c71:769d with SMTP id 5b1f17b1804b1-46e70c5cef4mr26594895e9.8.1759498754928; Fri, 03 Oct 2025 06:39:14 -0700 (PDT) Date: Fri, 3 Oct 2025 14:38:16 +0100 In-Reply-To: <20251003133825.2068970-1-vdonnefort@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251003133825.2068970-1-vdonnefort@google.com> X-Mailer: git-send-email 2.51.0.618.g983fd99d29-goog Message-ID: <20251003133825.2068970-20-vdonnefort@google.com> Subject: [PATCH v7 19/28] 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 2.51.0.618.g983fd99d29-goog