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Thu, 18 Jul 2024 01:39:02 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Bibo Mao , Jiaxun Yang Cc: Song Gao , Xianglai Li , Huacai Chen , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Xiaojuan Yang , Paolo Bonzini Subject: [PATCH v4 02/18] hw/intc/loongson_ipi: Access memory in little endian Date: Thu, 18 Jul 2024 10:38:26 +0200 Message-ID: <20240718083842.81199-3-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240718083842.81199-1-philmd@linaro.org> References: <20240718083842.81199-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::331; envelope-from=philmd@linaro.org; helo=mail-wm1-x331.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1721291978884116300 From: Bibo Mao Loongson IPI is only available in little-endian, so use that to access the guest memory (in case we run on a big-endian host). Signed-off-by: Bibo Mao Fixes: f6783e3438 ("hw/loongarch: Add LoongArch ipi interrupt support") [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Bibo Mao Tested-by: Bibo Mao --- hw/intc/loongson_ipi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/intc/loongson_ipi.c b/hw/intc/loongson_ipi.c index dc82caea0d..d315f6f303 100644 --- a/hw/intc/loongson_ipi.c +++ b/hw/intc/loongson_ipi.c @@ -14,6 +14,7 @@ #include "qapi/error.h" #include "qemu/log.h" #include "exec/address-spaces.h" +#include "exec/memory.h" #include "migration/vmstate.h" #ifdef TARGET_LOONGARCH64 #include "target/loongarch/cpu.h" @@ -102,7 +103,7 @@ static MemTxResult send_ipi_data(CPUState *cpu, uint64_= t val, hwaddr addr, * if the mask is 0, we need not to do anything. */ if ((val >> 27) & 0xf) { - data =3D address_space_ldl(iocsr_as, addr, attrs, NULL); + data =3D address_space_ldl_le(iocsr_as, addr, attrs, NULL); for (i =3D 0; i < 4; i++) { /* get mask for byte writing */ if (val & (0x1 << (27 + i))) { @@ -113,7 +114,7 @@ static MemTxResult send_ipi_data(CPUState *cpu, uint64_= t val, hwaddr addr, =20 data &=3D mask; data |=3D (val >> 32) & ~mask; - address_space_stl(iocsr_as, addr, data, attrs, NULL); + address_space_stl_le(iocsr_as, addr, data, attrs, NULL); =20 return MEMTX_OK; } --=20 2.41.0