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a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=mAHOqQMDfUXhHM+KBOo/K7oWQabBYpCuJp8UPMq0prU=; b=Z7zRt4J40Y9aKIllX5X30T/qpGmvfEcy9tKtBBKz/nwq5uJegDjxTOTJvzfPe37KV7a4pTWJ9lxvk2W4TYiLwIyPVd4e4j+4AEapzuT4L1HUqe9gJiiBHAOmaC3u9k/WwkVMdt+L5PVBith+uLiyW/uqtfWIdQnsDjHTOf7x4nYQrvOHQ+Uezw/M3B5F8J0rHirLmPveGsOWEed4pLX4MX5yBzlpRmVVRk4IxL+oB/ET2Pql3nwpAsaA4DbKHepBSyctjlVY/lF2oDa+Ew9lxEAwJMtwBnEFAQdbSpYLBR+LshzzIyLs5Jnp1WRnKTZ/We0L0NFgi7YNHn/wvorVpA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=starfivetech.com; dmarc=pass action=none header.from=starfivetech.com; dkim=pass header.d=starfivetech.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=starfivetech.com; From: Sia Jee Heng To: qemu-arm@nongnu.org, qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: mst@redhat.com, imammedo@redhat.com, anisinha@redhat.com, peter.maydell@linaro.org, jeeheng.sia@starfivetech.com, shannon.zhaosl@gmail.com, sunilvl@ventanamicro.com, palmer@dabbelt.com, alistair.francis@wdc.com, bin.meng@windriver.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com Subject: [PATCH v5 2/3] hw/acpi: Upgrade ACPI SPCR table to support SPCR table revision 4 format Date: Wed, 28 Aug 2024 18:59:19 -0700 Message-Id: <20240829015920.95778-3-jeeheng.sia@starfivetech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240829015920.95778-1-jeeheng.sia@starfivetech.com> References: <20240829015920.95778-1-jeeheng.sia@starfivetech.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SHXPR01CA0018.CHNPR01.prod.partner.outlook.cn (2406:e500:c311:1b::27) To NT0PR01MB1278.CHNPR01.prod.partner.outlook.cn (2406:e500:c510:12::10) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: NT0PR01MB1278:EE_|NT0PR01MB1021:EE_ X-MS-Office365-Filtering-Correlation-Id: 1333b4cc-a349-44e4-3f82-08dcc7ce3c16 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2406:e500:4440:2::728; envelope-from=jeeheng.sia@starfivetech.com; helo=CHN02-BJS-obe.outbound.protection.partner.outlook.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1724896884278116600 Content-Type: text/plain; charset="utf-8" Update the SPCR table to accommodate the SPCR Table revision 4 [1]. The SPCR table has been modified to adhere to the revision 4 format [2]. [1]: https://learn.microsoft.com/en-us/windows-hardware/drivers/serports/se= rial-port-console-redirection-table [2]: https://github.com/acpica/acpica/pull/931 Signed-off-by: Sia Jee Heng Reviewed-by: Sunil V L Acked-by: Alistair Francis --- hw/acpi/aml-build.c | 20 ++++++++++++++++---- hw/arm/virt-acpi-build.c | 8 ++++++-- hw/riscv/virt-acpi-build.c | 12 +++++++++--- include/hw/acpi/acpi-defs.h | 7 +++++-- include/hw/acpi/aml-build.h | 2 +- 5 files changed, 37 insertions(+), 12 deletions(-) diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 6d4517cfbe..99a1b403e2 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -1996,7 +1996,7 @@ static void build_processor_hierarchy_node(GArray *tb= l, uint32_t flags, =20 void build_spcr(GArray *table_data, BIOSLinker *linker, const AcpiSpcrData *f, const uint8_t rev, - const char *oem_id, const char *oem_table_id) + const char *oem_id, const char *oem_table_id, const char *= name) { AcpiTable table =3D { .sig =3D "SPCR", .rev =3D rev, .oem_id =3D oem_i= d, .oem_table_id =3D oem_table_id }; @@ -2042,9 +2042,21 @@ void build_spcr(GArray *table_data, BIOSLinker *link= er, build_append_int_noprefix(table_data, f->pci_flags, 4); /* PCI Segment */ build_append_int_noprefix(table_data, f->pci_segment, 1); - /* Reserved */ - build_append_int_noprefix(table_data, 0, 4); - + if (rev < 4) { + /* Reserved */ + build_append_int_noprefix(table_data, 0, 4); + } else { + /* UartClkFreq */ + build_append_int_noprefix(table_data, f->uart_clk_freq, 4); + /* PreciseBaudrate */ + build_append_int_noprefix(table_data, f->precise_baudrate, 4); + /* NameSpaceStringLength */ + build_append_int_noprefix(table_data, f->namespace_string_length, = 2); + /* NameSpaceStringOffset */ + build_append_int_noprefix(table_data, f->namespace_string_offset, = 2); + /* NamespaceString[] */ + g_array_append_vals(table_data, name, f->namespace_string_length); + } acpi_table_end(linker, &table); } /* diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index f76fb117ad..0b6f5f8d8d 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -464,8 +464,12 @@ spcr_setup(GArray *table_data, BIOSLinker *linker, Vir= tMachineState *vms) .pci_flags =3D 0, .pci_segment =3D 0, }; - - build_spcr(table_data, linker, &serial, 2, vms->oem_id, vms->oem_table= _id); + /* + * Passing NULL as the SPCR Table for Revision 2 doesn't support + * NameSpaceString. + */ + build_spcr(table_data, linker, &serial, 2, vms->oem_id, vms->oem_table= _id, + NULL); } =20 /* diff --git a/hw/riscv/virt-acpi-build.c b/hw/riscv/virt-acpi-build.c index 36d6a3a412..68ef15acac 100644 --- a/hw/riscv/virt-acpi-build.c +++ b/hw/riscv/virt-acpi-build.c @@ -200,14 +200,15 @@ acpi_dsdt_add_uart(Aml *scope, const MemMapEntry *uar= t_memmap, =20 /* * Serial Port Console Redirection Table (SPCR) - * Rev: 1.07 + * Rev: 1.10 */ =20 static void spcr_setup(GArray *table_data, BIOSLinker *linker, RISCVVirtState *s) { + const char name[] =3D "."; AcpiSpcrData serial =3D { - .interface_type =3D 0, /* 16550 compatible */ + .interface_type =3D 0x12, /* 16550 compatible */ .base_addr.id =3D AML_AS_SYSTEM_MEMORY, .base_addr.width =3D 32, .base_addr.offset =3D 0, @@ -229,9 +230,14 @@ spcr_setup(GArray *table_data, BIOSLinker *linker, RIS= CVVirtState *s) .pci_function =3D 0, .pci_flags =3D 0, .pci_segment =3D 0, + .uart_clk_freq =3D 0, + .precise_baudrate =3D 0, + .namespace_string_length =3D sizeof(name), + .namespace_string_offset =3D 88, }; =20 - build_spcr(table_data, linker, &serial, 2, s->oem_id, s->oem_table_id); + build_spcr(table_data, linker, &serial, 4, s->oem_id, s->oem_table_id, + name); } =20 /* RHCT Node[N] starts at offset 56 */ diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h index 0e6e82b339..2e6e341998 100644 --- a/include/hw/acpi/acpi-defs.h +++ b/include/hw/acpi/acpi-defs.h @@ -112,7 +112,6 @@ typedef struct AcpiSpcrData { uint8_t flow_control; uint8_t terminal_type; uint8_t language; - uint8_t reserved1; uint16_t pci_device_id; /* Must be 0xffff if not PCI device */ uint16_t pci_vendor_id; /* Must be 0xffff if not PCI device */ uint8_t pci_bus; @@ -120,7 +119,11 @@ typedef struct AcpiSpcrData { uint8_t pci_function; uint32_t pci_flags; uint8_t pci_segment; - uint32_t reserved2; + uint32_t uart_clk_freq; + uint32_t precise_baudrate; + uint32_t namespace_string_length; + uint32_t namespace_string_offset; + char namespace_string[]; } AcpiSpcrData; =20 #define ACPI_FADT_ARM_PSCI_COMPLIANT (1 << 0) diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h index a3784155cb..68c0f2dbee 100644 --- a/include/hw/acpi/aml-build.h +++ b/include/hw/acpi/aml-build.h @@ -500,5 +500,5 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker,= GArray *tcpalog, =20 void build_spcr(GArray *table_data, BIOSLinker *linker, const AcpiSpcrData *f, const uint8_t rev, - const char *oem_id, const char *oem_table_id); + const char *oem_id, const char *oem_table_id, const char *= name); #endif --=20 2.34.1