diff options
Diffstat (limited to 'OvmfPkg/SmbiosPlatformDxe')
| -rw-r--r-- | OvmfPkg/SmbiosPlatformDxe/Qemu.c | 30 | ||||
| -rw-r--r-- | OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf | 4 |
2 files changed, 13 insertions, 21 deletions
diff --git a/OvmfPkg/SmbiosPlatformDxe/Qemu.c b/OvmfPkg/SmbiosPlatformDxe/Qemu.c index f7ace4f1de..9466b950fc 100644 --- a/OvmfPkg/SmbiosPlatformDxe/Qemu.c +++ b/OvmfPkg/SmbiosPlatformDxe/Qemu.c @@ -15,6 +15,7 @@ #include "SmbiosPlatformDxe.h"
#include <Library/QemuFwCfgLib.h>
#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
/**
Locates and extracts the QEMU SMBIOS data if present in fw_cfg
@@ -27,32 +28,19 @@ GetQemuSmbiosTables ( VOID
)
{
- SMBIOS_TABLE_ENTRY_POINT QemuAnchor;
- FIRMWARE_CONFIG_ITEM Anchor, Tables;
- UINTN AnchorSize, TablesSize;
+ EFI_STATUS Status;
+ FIRMWARE_CONFIG_ITEM Tables;
+ UINTN TablesSize;
UINT8 *QemuTables;
- if (EFI_ERROR (QemuFwCfgFindFile (
- "etc/smbios/smbios-anchor", &Anchor, &AnchorSize)) ||
- EFI_ERROR (QemuFwCfgFindFile (
- "etc/smbios/smbios-tables", &Tables, &TablesSize)) ||
- AnchorSize != sizeof (QemuAnchor) ||
- TablesSize == 0) {
+ if (!PcdGetBool (PcdQemuSmbiosValidated)) {
return NULL;
}
- //
- // We copy the entry point structure to perform some additional checks,
- // but discard it upon return.
- //
- QemuFwCfgSelectItem (Anchor);
- QemuFwCfgReadBytes (AnchorSize, &QemuAnchor);
-
- if (AsciiStrnCmp ((CHAR8 *)QemuAnchor.AnchorString, "_SM_", 4) ||
- AsciiStrnCmp ((CHAR8 *)QemuAnchor.IntermediateAnchorString, "_DMI_", 5) ||
- TablesSize != QemuAnchor.TableLength) {
- return NULL;
- }
+ Status = QemuFwCfgFindFile ("etc/smbios/smbios-tables", &Tables,
+ &TablesSize);
+ ASSERT_EFI_ERROR (Status);
+ ASSERT (TablesSize > 0);
QemuTables = AllocatePool (TablesSize);
if (QemuTables == NULL) {
diff --git a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf index 3b90aac438..91815ecd6f 100644 --- a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf +++ b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf @@ -53,6 +53,10 @@ HobLib
QemuFwCfgLib
MemoryAllocationLib
+ PcdLib
+
+[Pcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdQemuSmbiosValidated
[Protocols]
gEfiSmbiosProtocolGuid # PROTOCOL ALWAYS_CONSUMED
|