ac0a286f4d
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the OvmfPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Andrew Fish <afish@apple.com>
129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
/** @file
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A hook-in library for MdeModulePkg/Universal/SmbiosDxe, in order to set
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gEfiMdeModulePkgTokenSpaceGuid.PcdSmbiosVersion (and possibly other PCDs)
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just before SmbiosDxe consumes them.
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Copyright (C) 2013, 2015, Red Hat, Inc.
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Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <IndustryStandard/SmBios.h>
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#include <Base.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Library/QemuFwCfgLib.h>
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typedef union {
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SMBIOS_TABLE_ENTRY_POINT V2;
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SMBIOS_TABLE_3_0_ENTRY_POINT V3;
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} QEMU_SMBIOS_ANCHOR;
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RETURN_STATUS
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EFIAPI
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DetectSmbiosVersion (
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VOID
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)
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{
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FIRMWARE_CONFIG_ITEM Anchor, Tables;
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UINTN AnchorSize, TablesSize;
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QEMU_SMBIOS_ANCHOR QemuAnchor;
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UINT16 SmbiosVersion;
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RETURN_STATUS PcdStatus;
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if (PcdGetBool (PcdQemuSmbiosValidated)) {
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//
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// Some other module, linked against this library, has already performed
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// the task at hand. This should never happen, but it's easy to handle;
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// just exit early.
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//
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return RETURN_SUCCESS;
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}
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if (RETURN_ERROR (
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QemuFwCfgFindFile (
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"etc/smbios/smbios-anchor",
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&Anchor,
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&AnchorSize
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)
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) ||
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RETURN_ERROR (
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QemuFwCfgFindFile (
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"etc/smbios/smbios-tables",
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&Tables,
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&TablesSize
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)
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) ||
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(TablesSize == 0))
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{
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return RETURN_SUCCESS;
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}
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QemuFwCfgSelectItem (Anchor);
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switch (AnchorSize) {
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case sizeof QemuAnchor.V2:
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QemuFwCfgReadBytes (AnchorSize, &QemuAnchor);
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if ((QemuAnchor.V2.MajorVersion != 2) ||
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(QemuAnchor.V2.TableLength != TablesSize) ||
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(CompareMem (QemuAnchor.V2.AnchorString, "_SM_", 4) != 0) ||
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(CompareMem (QemuAnchor.V2.IntermediateAnchorString, "_DMI_", 5) != 0))
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{
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return RETURN_SUCCESS;
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}
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SmbiosVersion = (UINT16)(QemuAnchor.V2.MajorVersion << 8 |
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QemuAnchor.V2.MinorVersion);
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break;
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case sizeof QemuAnchor.V3:
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QemuFwCfgReadBytes (AnchorSize, &QemuAnchor);
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if ((QemuAnchor.V3.MajorVersion != 3) ||
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(QemuAnchor.V3.TableMaximumSize != TablesSize) ||
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(CompareMem (QemuAnchor.V3.AnchorString, "_SM3_", 5) != 0))
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{
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return RETURN_SUCCESS;
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}
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SmbiosVersion = (UINT16)(QemuAnchor.V3.MajorVersion << 8 |
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QemuAnchor.V3.MinorVersion);
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DEBUG ((
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DEBUG_INFO,
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"%a: SMBIOS 3.x DocRev from QEMU: 0x%02x\n",
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__FUNCTION__,
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QemuAnchor.V3.DocRev
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));
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PcdStatus = PcdSet8S (PcdSmbiosDocRev, QemuAnchor.V3.DocRev);
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ASSERT_RETURN_ERROR (PcdStatus);
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break;
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default:
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return RETURN_SUCCESS;
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}
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DEBUG ((
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DEBUG_INFO,
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"%a: SMBIOS version from QEMU: 0x%04x\n",
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__FUNCTION__,
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SmbiosVersion
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));
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PcdStatus = PcdSet16S (PcdSmbiosVersion, SmbiosVersion);
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ASSERT_RETURN_ERROR (PcdStatus);
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//
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// SMBIOS platform drivers can now fetch and install
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// "etc/smbios/smbios-tables" from QEMU.
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//
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PcdStatus = PcdSetBoolS (PcdQemuSmbiosValidated, TRUE);
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ASSERT_RETURN_ERROR (PcdStatus);
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return RETURN_SUCCESS;
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}
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