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AJvYcCV8HuYUDSoCsX632pM8pTi7soJJmwNBuQhSJ40qBzBeI9SeljfEMuk5mfsPn9rWa5AECE2GysEJJXVZMFU=@vger.kernel.org X-Gm-Message-State: AOJu0YwfGFb3I5Q/VxQfBIUaUkYuZwa0oWHM6Ob0ovTnAc7L9G90ZX71 Tg4YteK0VF05xb2ITW+d0w0Dzgr8CPNV0SFlLBP+xb41kA6rbeDStxF+0hNqgDMDBvDGiGUfdTu rtJG65BXrPdpAfD0g3KSbcw== X-Google-Smtp-Source: AGHT+IHsR3qBiRucA8EKV6gtWcPn+2ggqqibNDj6Tp411vd1dft0CpDHY+pu14k+X5SUIXMeB/b4TqMhsuxDYA6Y X-Received: from wmbju15.prod.google.com ([2002:a05:600c:56cf:b0:475:d898:b23c]) (user=vdonnefort job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:3113:b0:471:3b5:aeac with SMTP id 5b1f17b1804b1-4776bcae3d2mr20603165e9.15.1762508346413; Fri, 07 Nov 2025 01:39:06 -0800 (PST) Date: Fri, 7 Nov 2025 09:38:31 +0000 In-Reply-To: <20251107093840.3779150-1-vdonnefort@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251107093840.3779150-1-vdonnefort@google.com> X-Mailer: git-send-email 2.51.2.1041.gc1ab5b90ca-goog Message-ID: <20251107093840.3779150-20-vdonnefort@google.com> Subject: [PATCH v8 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 2.51.2.1041.gc1ab5b90ca-goog