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Thu, 22 Oct 2026 00:23:17 -0700 (PDT) From: pillow To: qemu-devel@nongnu.org Cc: 17746591750@163.com, maobibo@loongson.cn, lixianglai@loongson.cn, jiaxun.yang@flygoat.com, mst@redhat.com, imammedo@redhat.com, anisinha@redhat.com, pillow Subject: [PATCH v4 1/4] bios-tables-test-allowed-diff.h: Allow LoongArch DSDT.* Date: Thu, 22 Oct 2026 15:22:35 +0800 Message-ID: <20261022072238.319308-2-waysorrypub@gmail.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261022072238.319308-1-waysorrypub@gmail.com> References: <20261022072238.319308-1-waysorrypub@gmail.com> MIME-Version: 1.0 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+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::435; envelope-from=waysorrypub@gmail.com; helo=mail-pf1-x435.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, FREEMAIL_FROM=0.001, 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1792653813282158500 Content-Type: text/plain; charset="utf-8" Signed-off-by: pillow --- tests/qtest/bios-tables-test-allowed-diff.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios= -tables-test-allowed-diff.h index dfb8523..2ed837f 100644 --- a/tests/qtest/bios-tables-test-allowed-diff.h +++ b/tests/qtest/bios-tables-test-allowed-diff.h @@ -1 +1,5 @@ /* List of comma-separated changed AML files to ignore */ +"tests/data/acpi/loongarch64/virt/DSDT", +"tests/data/acpi/loongarch64/virt/DSDT.memhp", +"tests/data/acpi/loongarch64/virt/DSDT.numamem", +"tests/data/acpi/loongarch64/virt/DSDT.topology", --=20 2.56.0 From nobody Thu Oct 22 19:33:09 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1792653815; 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Thu, 22 Oct 2026 00:23:23 -0700 (PDT) From: pillow To: qemu-devel@nongnu.org Cc: 17746591750@163.com, maobibo@loongson.cn, lixianglai@loongson.cn, jiaxun.yang@flygoat.com, mst@redhat.com, imammedo@redhat.com, anisinha@redhat.com, pillow Subject: [PATCH v4 2/4] hw/loongarch/virt-acpi-build: Drop UART _DSD clock and add _STA Date: Thu, 22 Oct 2026 15:22:36 +0800 Message-ID: <20261022072238.319308-3-waysorrypub@gmail.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261022072238.319308-1-waysorrypub@gmail.com> References: <20261022072238.319308-1-waysorrypub@gmail.com> MIME-Version: 1.0 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+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::436; envelope-from=waysorrypub@gmail.com; helo=mail-pf1-x436.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, FREEMAIL_FROM=0.001, 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1792653817179158500 Content-Type: text/plain; charset="utf-8" The UART _DSD clock property contains a typo ("clock-frenquency") and has its key/value order reversed. It also specifies a 100 MHz clock, which does not match the emulated UART. QEMU's UART model uses baudbase =3D 115200, corresponding to a clock frequency of 1,843,200 Hz. The Linux 8250 PnP driver uses the same frequency by default when no clock is specified. Since the default already matches the UART model, there is no need to provide an explicit clock property. Drop it from _DSD, consistent with the existing x86 ISA serial ACPI implementation. Also remove _CCA because the emulated UART does not support DMA, and add _STA =3D 0x0f to indicate that the device is present, enabled, visible, and functioning. Signed-off-by: pillow Reviewed-by: Bibo Mao --- hw/loongarch/virt-acpi-build.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/hw/loongarch/virt-acpi-build.c b/hw/loongarch/virt-acpi-build.c index 54965f0..55c7641 100644 --- a/hw/loongarch/virt-acpi-build.c +++ b/hw/loongarch/virt-acpi-build.c @@ -314,7 +314,6 @@ static void build_uart_device_aml(Aml *table, int index) { Aml *dev; Aml *crs; - Aml *pkg0, *pkg1, *pkg2; Aml *scope; uint32_t uart_irq; uint64_t base; @@ -325,7 +324,7 @@ static void build_uart_device_aml(Aml *table, int index) dev =3D aml_device("COM%d", index); aml_append(dev, aml_name_decl("_HID", aml_string("PNP0501"))); aml_append(dev, aml_name_decl("_UID", aml_int(index))); - aml_append(dev, aml_name_decl("_CCA", aml_int(1))); + aml_append(dev, aml_name_decl("_STA", aml_int(0x0f))); crs =3D aml_resource_template(); aml_append(crs, aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, @@ -335,15 +334,6 @@ static void build_uart_device_aml(Aml *table, int inde= x) aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, AML_SHARED, &uart_irq, 1)); aml_append(dev, aml_name_decl("_CRS", crs)); - pkg0 =3D aml_package(0x2); - aml_append(pkg0, aml_int(0x05F5E100)); - aml_append(pkg0, aml_string("clock-frenquency")); - pkg1 =3D aml_package(0x1); - aml_append(pkg1, pkg0); - pkg2 =3D aml_package(0x2); - aml_append(pkg2, aml_touuid("DAFFD814-6EBA-4D8C-8A91-BC9BBF4AA301")); - aml_append(pkg2, pkg1); - aml_append(dev, aml_name_decl("_DSD", pkg2)); aml_append(scope, dev); aml_append(table, scope); } --=20 2.56.0 From nobody Thu Oct 22 19:33:09 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1792653845; cv=none; d=zohomail.com; s=zohoarc; b=iqGBtXuwxpKlAwA+J0trs9ZQ7ATDOEtXRzxLfqOZd2I3dVkjy27AX+gDCMXdGkY6Y9T99vSLF6X7gWo9fE6zaQxGrB1cCww9vPuB8nchkq4W5u/v0DOMpXu35DTJUai3dNV9qt8IOmC08kFy5PorL9XDRouhlc/G0K+PslnnSf0= ARC-Message-Signature: i=1; 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Thu, 22 Oct 2026 00:23:28 -0700 (PDT) From: pillow To: qemu-devel@nongnu.org Cc: 17746591750@163.com, maobibo@loongson.cn, lixianglai@loongson.cn, jiaxun.yang@flygoat.com, mst@redhat.com, imammedo@redhat.com, anisinha@redhat.com, pillow Subject: [PATCH v4 3/4] tests/data/acpi/loongarch64: Update expected DSDT.* Date: Thu, 22 Oct 2026 15:22:37 +0800 Message-ID: <20261022072238.319308-4-waysorrypub@gmail.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261022072238.319308-1-waysorrypub@gmail.com> References: <20261022072238.319308-1-waysorrypub@gmail.com> MIME-Version: 1.0 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+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::42d; envelope-from=waysorrypub@gmail.com; helo=mail-pf1-x42d.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, FREEMAIL_FROM=0.001, 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1792653847773158500 Content-Type: text/plain; charset="utf-8" --- tests/data/acpi/loongarch64/virt/DSDT (before) +++ tests/data/acpi/loongarch64/virt/DSDT (after) @@ -6,7 +6,7 @@ { Name (_HID, "PNP0501" /* 16550A-compatible COM Serial Port= */) // _HID: Hardware ID Name (_UID, Zero) // _UID: Unique ID - Name (_CCA, One) // _CCA: Cache Coherency Attribute + Name (_STA, 0x0F) // _STA: Status Name (_CRS, ResourceTemplate () // _CRS: Current Resource= Settings { QWordMemory (ResourceProducer, PosDecode, MinFixed, Ma= xFixed, NonCacheable, ReadWrite, @@ -21,18 +21,6 @@ 0x00000042, } }) - Name (_DSD, Package (0x02) // _DSD: Device-Specific Data - { - ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Dev= ice Properties for _DSD */, - Package (0x01) - { - Package (0x02) - { - 0x05F5E100, - "clock-frenquency" - } - } - }) } } @@ -42,7 +30,7 @@ { Name (_HID, "PNP0501" /* 16550A-compatible COM Serial Port= */) // _HID: Hardware ID Name (_UID, One) // _UID: Unique ID - Name (_CCA, One) // _CCA: Cache Coherency Attribute + Name (_STA, 0x0F) // _STA: Status Name (_CRS, ResourceTemplate () // _CRS: Current Resource= Settings { QWordMemory (ResourceProducer, PosDecode, MinFixed, Ma= xFixed, NonCacheable, ReadWrite, @@ -57,18 +45,6 @@ 0x00000043, } }) - Name (_DSD, Package (0x02) // _DSD: Device-Specific Data - { - ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Dev= ice Properties for _DSD */, - Package (0x01) - { - Package (0x02) - { - 0x05F5E100, - "clock-frenquency" - } - } - }) } } @@ -78,7 +54,7 @@ { Name (_HID, "PNP0501" /* 16550A-compatible COM Serial Port= */) // _HID: Hardware ID Name (_UID, 0x02) // _UID: Unique ID - Name (_CCA, One) // _CCA: Cache Coherency Attribute + Name (_STA, 0x0F) // _STA: Status Name (_CRS, ResourceTemplate () // _CRS: Current Resource= Settings { QWordMemory (ResourceProducer, PosDecode, MinFixed, Ma= xFixed, NonCacheable, ReadWrite, @@ -93,18 +69,6 @@ 0x00000044, } }) - Name (_DSD, Package (0x02) // _DSD: Device-Specific Data - { - ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Dev= ice Properties for _DSD */, - Package (0x01) - { - Package (0x02) - { - 0x05F5E100, - "clock-frenquency" - } - } - }) } } @@ -114,7 +78,7 @@ { Name (_HID, "PNP0501" /* 16550A-compatible COM Serial Port= */) // _HID: Hardware ID Name (_UID, 0x03) // _UID: Unique ID - Name (_CCA, One) // _CCA: Cache Coherency Attribute + Name (_STA, 0x0F) // _STA: Status Name (_CRS, ResourceTemplate () // _CRS: Current Resource= Settings { QWordMemory (ResourceProducer, PosDecode, MinFixed, Ma= xFixed, NonCacheable, ReadWrite, @@ -127,18 +91,6 @@ Interrupt (ResourceConsumer, Level, ActiveHigh, Shared= , ,, ) { 0x00000045, - } - }) - Name (_DSD, Package (0x02) // _DSD: Device-Specific Data - { - ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Dev= ice Properties for _DSD */, - Package (0x01) - { - Package (0x02) - { - 0x05F5E100, - "clock-frenquency" - } } }) } Signed-off-by: pillow --- tests/data/acpi/loongarch64/virt/DSDT | Bin 4603 -> 4379 bytes tests/data/acpi/loongarch64/virt/DSDT.memhp | Bin 5824 -> 5600 bytes tests/data/acpi/loongarch64/virt/DSDT.numamem | Bin 4609 -> 4385 bytes .../data/acpi/loongarch64/virt/DSDT.topology | Bin 4905 -> 4681 bytes tests/qtest/bios-tables-test-allowed-diff.h | 4 ---- 5 files changed, 4 deletions(-) diff --git a/tests/data/acpi/loongarch64/virt/DSDT b/tests/data/acpi/loonga= rch64/virt/DSDT index 09aa903c4e875f541223e36f59b28e101599df20..686d9078e4d61558d65bdcfec76= a2428b83ef56d 100644 GIT binary patch delta 160 zcmeyZJX?v&CD2_U4L z{e2BN;ypZFcmwX)bTJ_+Y2_=3Dq6{jiTYBk!6A-Z{1ZP)Oib0%5IuGH}F)db%)j#6vYW@eBAs4RT>~_V+cKtiU9~!339=3Dn7ocr YiyKMJWEm!DxNVbznY1=3D2_U4L z{e2BN;ypZFcmwIuGH}F)db%)j#6vYW@eBAs4RT>~_V+cKtiU9~!339=3Dn7ocr YiyKMJWEm!DxNVbznY1=3D (p=none dis=none) Return-Path: Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 17926538220551013.1875914436696; 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Thu, 22 Oct 2026 00:23:33 -0700 (PDT) From: pillow To: qemu-devel@nongnu.org Cc: 17746591750@163.com, maobibo@loongson.cn, lixianglai@loongson.cn, jiaxun.yang@flygoat.com, mst@redhat.com, imammedo@redhat.com, anisinha@redhat.com, pillow Subject: [PATCH v4 4/4] hw/loongarch/virt: Fix UART clock frequency in FDT Date: Thu, 22 Oct 2026 15:22:38 +0800 Message-ID: <20261022072238.319308-5-waysorrypub@gmail.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261022072238.319308-1-waysorrypub@gmail.com> References: <20261022072238.319308-1-waysorrypub@gmail.com> MIME-Version: 1.0 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+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::434; envelope-from=waysorrypub@gmail.com; helo=mail-pf1-x434.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, FREEMAIL_FROM=0.001, 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1792653823596158500 Content-Type: text/plain; charset="utf-8" The UART uses baudbase =3D 115200, corresponding to an input clock of 1843200 Hz. Update the FDT clock-frequency property to match the model. Signed-off-by: pillow --- hw/loongarch/virt-fdt-build.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/loongarch/virt-fdt-build.c b/hw/loongarch/virt-fdt-build.c index c6f5d02..7be71e2 100644 --- a/hw/loongarch/virt-fdt-build.c +++ b/hw/loongarch/virt-fdt-build.c @@ -474,7 +474,7 @@ static void fdt_add_uart_node(LoongArchVirtMachineState= *lvms, qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "ns16550a"); qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, base, 0x0, size); - qemu_fdt_setprop_cell(ms->fdt, nodename, "clock-frequency", 100000000); + qemu_fdt_setprop_cell(ms->fdt, nodename, "clock-frequency", 1843200); if (chosen) { qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodenam= e); } --=20 2.56.0