From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by mx.groups.io with SMTP id smtpd.web10.49722.1638785602189908530 for ; Mon, 06 Dec 2021 02:13:22 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: intel.com, ip: 192.55.52.136, mailfrom: sebastien.boeuf@intel.com) X-IronPort-AV: E=McAfee;i="6200,9189,10189"; a="217312921" X-IronPort-AV: E=Sophos;i="5.87,291,1631602800"; d="scan'208";a="217312921" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Dec 2021 02:13:21 -0800 X-IronPort-AV: E=Sophos;i="5.87,291,1631602800"; d="scan'208";a="461755020" Received: from deyangko-mobl1.ccr.corp.intel.com (HELO sboeuf-mobl.home) ([10.252.18.29]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Dec 2021 02:13:19 -0800 From: sebastien.boeuf@intel.com To: devel@edk2.groups.io Cc: jiewen.yao@intel.com, jordan.l.justen@intel.com, kraxel@redhat.com, sebastien.boeuf@intel.com Subject: [PATCH v3 5/5] OvmfPkg: Install ACPI tables for Cloud Hypervisor Date: Mon, 6 Dec 2021 11:12:22 +0100 Message-Id: <10605a1a91876c7283220d69f5088d40e471790c.1638785380.git.sebastien.boeuf@intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable From: Sebastien Boeuf Adding support for retrieving the Cloud Hypervisor ACPI tables as a fallback mechanism if tables are not found through fw_cfg. Reviewed-by: Gerd Hoffmann Signed-off-by: Rob Bradford Signed-off-by: Sebastien Boeuf --- OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c | 11 +- OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h | 6 + OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf | 2 + OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c | 117 ++++++++++++++++++++ OvmfPkg/Include/IndustryStandard/CloudHv.h | 5 + 5 files changed, 140 insertions(+), 1 deletion(-) create mode 100644 OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c diff --git a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c b/OvmfPkg/AcpiPlatformD= xe/AcpiPlatform.c index 613a8ac97f..195dc0b977 100644 --- a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c +++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c @@ -7,6 +7,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent **/ = +#include // CLOUDHV_DEVICE_ID + #include "AcpiPlatform.h" = /** @@ -27,7 +29,14 @@ InstallAcpiTables ( ) { EFI_STATUS Status; + UINT16 HostBridgeDevId; + + HostBridgeDevId =3D PcdGet16 (PcdOvmfHostBridgePciDevId); + if (HostBridgeDevId =3D=3D CLOUDHV_DEVICE_ID) { + Status =3D InstallCloudHvTables (AcpiTable); + } else { + Status =3D InstallQemuFwCfgTables (AcpiTable); + } = - Status =3D InstallQemuFwCfgTables (AcpiTable); return Status; } diff --git a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h b/OvmfPkg/AcpiPlatformD= xe/AcpiPlatform.h index bd4c26f07f..bee48a93da 100644 --- a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h +++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h @@ -19,6 +19,12 @@ typedef struct { = typedef struct S3_CONTEXT S3_CONTEXT; = +EFI_STATUS +EFIAPI +InstallCloudHvTables ( + IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol + ); + EFI_STATUS EFIAPI InstallQemuFwCfgTables ( diff --git a/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf b/OvmfPkg/AcpiPlat= formDxe/AcpiPlatformDxe.inf index eedd3b5af3..b36b8413e0 100644 --- a/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf +++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf @@ -24,6 +24,7 @@ AcpiPlatform.c AcpiPlatform.h BootScript.c + CloudHvAcpi.c EntryPoint.c PciDecoding.c QemuFwCfgAcpi.c @@ -54,6 +55,7 @@ = [Pcd] gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration + gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId = [Depex] gEfiAcpiTableProtocolGuid diff --git a/OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c b/OvmfPkg/AcpiPlatformDx= e/CloudHvAcpi.c new file mode 100644 index 0000000000..96c532cce6 --- /dev/null +++ b/OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c @@ -0,0 +1,117 @@ +/** @file + OVMF ACPI Cloud Hypervisor support + + Copyright (c) 2021, Intel Corporation. All rights reserved. + + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include // CLOUDHV_RSDP_ADDRESS +#include // CpuDeadLoop() +#include // DEBUG() + +#include "AcpiPlatform.h" + +// Get the ACPI tables from EBDA start +EFI_STATUS +EFIAPI +InstallCloudHvTables ( + IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol + ) +{ + EFI_STATUS Status; + UINTN TableHandle; + + EFI_ACPI_DESCRIPTION_HEADER *Xsdt; + VOID *CurrentTableEntry; + UINTN CurrentTablePointer; + EFI_ACPI_DESCRIPTION_HEADER *CurrentTable; + UINTN Index; + UINTN NumberOfTableEntries; + EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt2Table; + EFI_ACPI_DESCRIPTION_HEADER *DsdtTable; + Fadt2Table =3D NULL; + DsdtTable =3D NULL; + TableHandle =3D 0; + NumberOfTableEntries =3D 0; + EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *AcpiRsdpStructurePtr =3D (= VOID *)CLOUDHV_RSDP_ADDRESS; + + // If XSDT table is found, just install its tables. + // Otherwise, try to find and install the RSDT tables. + // + if (AcpiRsdpStructurePtr->XsdtAddress) { + // + // Retrieve the addresses of XSDT and + // calculate the number of its table entries. + // + Xsdt =3D (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) + AcpiRsdpStructurePtr->XsdtAddress; + NumberOfTableEntries =3D (Xsdt->Length - + sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / + sizeof (UINT64); + + // + // Install ACPI tables found in XSDT. + // + for (Index =3D 0; Index < NumberOfTableEntries; Index++) { + // + // Get the table entry from XSDT + // + CurrentTableEntry =3D (VOID *) ((UINT8 *) Xsdt + + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + + Index * sizeof (UINT64)); + CurrentTablePointer =3D (UINTN) *(UINT64 *)CurrentTableEntry; + CurrentTable =3D (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTablePointer; + + // + // Install the XSDT tables + // + Status =3D AcpiProtocol->InstallAcpiTable ( + AcpiProtocol, + CurrentTable, + CurrentTable->Length, + &TableHandle + ); + + if (EFI_ERROR (Status)) { + ASSERT_EFI_ERROR(Status); + return Status; + } + + // + // Get the X-DSDT table address from the table FADT + // + if (!AsciiStrnCmp ((CHAR8 *) &CurrentTable->Signature, "FACP", 4)) { + Fadt2Table =3D (EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *) + (UINTN) CurrentTablePointer; + DsdtTable =3D (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Fadt2Table-= >XDsdt; + } + } + } else { + return EFI_NOT_FOUND; + } + + // + // Install DSDT table. If we reached this point without finding the DSDT, + // then we're out of sync with the hypervisor, and cannot continue. + // + if (DsdtTable =3D=3D NULL) { + DEBUG ((DEBUG_ERROR, "%a: no DSDT found\n", __FUNCTION__)); + ASSERT (FALSE); + CpuDeadLoop (); + } + + Status =3D AcpiProtocol->InstallAcpiTable ( + AcpiProtocol, + DsdtTable, + DsdtTable->Length, + &TableHandle + ); + if (EFI_ERROR (Status)) { + ASSERT_EFI_ERROR(Status); + return Status; + } + + return EFI_SUCCESS; +} diff --git a/OvmfPkg/Include/IndustryStandard/CloudHv.h b/OvmfPkg/Include/I= ndustryStandard/CloudHv.h index ad0e170795..3a01dbb7d7 100644 --- a/OvmfPkg/Include/IndustryStandard/CloudHv.h +++ b/OvmfPkg/Include/IndustryStandard/CloudHv.h @@ -37,4 +37,9 @@ // #define CLOUDHV_SMBIOS_ADDRESS 0xf0000 = +// +// RSDP address +// +#define CLOUDHV_RSDP_ADDRESS 0xa0000 + #endif // __CLOUDHV_H__ -- = 2.30.2 --------------------------------------------------------------------- Intel Corporation SAS (French simplified joint stock company) Registered headquarters: "Les Montalets"- 2, rue de Paris, = 92196 Meudon Cedex, France Registration Number: 302 456 199 R.C.S. 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