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-rw-r--r--OvmfPkg/Bhyve/SmbiosPlatformDxe/Bhyve.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/OvmfPkg/Bhyve/SmbiosPlatformDxe/Bhyve.c b/OvmfPkg/Bhyve/SmbiosPlatformDxe/Bhyve.c
new file mode 100644
index 0000000000..6ca976daa6
--- /dev/null
+++ b/OvmfPkg/Bhyve/SmbiosPlatformDxe/Bhyve.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2020, Rebecca Cran <rebecca@bsdio.com>
+ * Copyright (c) 2014, Pluribus Networks, Inc.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause-Patent
+ */
+
+#include "SmbiosPlatformDxe.h"
+
+#define BHYVE_SMBIOS_PHYSICAL_ADDRESS 0x000F0000
+#define BHYVE_SMBIOS_PHYSICAL_END 0x000FFFFF
+
+/**
+ Locates the bhyve SMBIOS data if it exists
+
+ @return SMBIOS_TABLE_ENTRY_POINT Address of bhyve SMBIOS data
+
+**/
+SMBIOS_TABLE_ENTRY_POINT *
+GetBhyveSmbiosTables (
+ VOID
+ )
+{
+ UINT8 *BhyveSmbiosPtr;
+ SMBIOS_TABLE_ENTRY_POINT *BhyveSmbiosEntryPointStructure;
+
+ for (BhyveSmbiosPtr = (UINT8*)(UINTN) BHYVE_SMBIOS_PHYSICAL_ADDRESS;
+ BhyveSmbiosPtr < (UINT8*)(UINTN) BHYVE_SMBIOS_PHYSICAL_END;
+ BhyveSmbiosPtr += 0x10) {
+
+ BhyveSmbiosEntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *) BhyveSmbiosPtr;
+
+ if (!AsciiStrnCmp ((CHAR8 *) BhyveSmbiosEntryPointStructure->AnchorString, "_SM_", 4) &&
+ !AsciiStrnCmp ((CHAR8 *) BhyveSmbiosEntryPointStructure->IntermediateAnchorString, "_DMI_", 5) &&
+ IsEntryPointStructureValid (BhyveSmbiosEntryPointStructure)) {
+
+ return BhyveSmbiosEntryPointStructure;
+
+ }
+ }
+
+ return NULL;
+}