Add BhyvePkg, to support the bhyve hypervisor
BhyvePkg supports the bhyve hypervisor, which is a hypervisor/virtual machine manager available on FreeBSD, macOS and Illumos. Signed-off-by: Rebecca Cran <rebecca@bsdio.com> Message-Id: <20200713054131.479627-2-rebecca@bsdio.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
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OvmfPkg/Bhyve/SmbiosPlatformDxe/SmbiosPlatformDxe.c
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245
OvmfPkg/Bhyve/SmbiosPlatformDxe/SmbiosPlatformDxe.c
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/** @file
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This driver installs SMBIOS information for OVMF
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Copyright (c) 2020, Rebecca Cran <rebecca@bsdio.com>
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Copyright (c) 2011, Bei Guan <gbtju85@gmail.com>
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Copyright (c) 2011 - 2015, 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 "SmbiosPlatformDxe.h"
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#define TYPE0_STRINGS \
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"EFI Development Kit II / OVMF\0" /* Vendor */ \
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"0.0.0\0" /* BiosVersion */ \
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"02/06/2015\0" /* BiosReleaseDate */
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//
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// Type definition and contents of the default Type 0 SMBIOS table.
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//
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#pragma pack(1)
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typedef struct {
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SMBIOS_TABLE_TYPE0 Base;
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UINT8 Strings[sizeof(TYPE0_STRINGS)];
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} OVMF_TYPE0;
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#pragma pack()
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STATIC CONST OVMF_TYPE0 mOvmfDefaultType0 = {
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{
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// SMBIOS_STRUCTURE Hdr
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{
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EFI_SMBIOS_TYPE_BIOS_INFORMATION, // UINT8 Type
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sizeof (SMBIOS_TABLE_TYPE0), // UINT8 Length
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},
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1, // SMBIOS_TABLE_STRING Vendor
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2, // SMBIOS_TABLE_STRING BiosVersion
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0xE800,// UINT16 BiosSegment
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3, // SMBIOS_TABLE_STRING BiosReleaseDate
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0, // UINT8 BiosSize
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{ // MISC_BIOS_CHARACTERISTICS BiosCharacteristics
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0, // Reserved :2
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0, // Unknown :1
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1, // BiosCharacteristicsNotSupported :1
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// Remaining BiosCharacteristics bits left unset :60
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},
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{ // BIOSCharacteristicsExtensionBytes[2]
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0, // BiosReserved
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0x1C // SystemReserved = VirtualMachineSupported |
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// UefiSpecificationSupported |
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// TargetContentDistributionEnabled
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},
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0, // UINT8 SystemBiosMajorRelease
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0, // UINT8 SystemBiosMinorRelease
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0xFF, // UINT8 EmbeddedControllerFirmwareMajorRelease
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0xFF // UINT8 EmbeddedControllerFirmwareMinorRelease
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},
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// Text strings (unformatted area)
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TYPE0_STRINGS
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};
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/**
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Validates the SMBIOS entry point structure
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@param EntryPointStructure SMBIOS entry point structure
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@retval TRUE The entry point structure is valid
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@retval FALSE The entry point structure is not valid
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**/
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BOOLEAN
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IsEntryPointStructureValid (
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IN SMBIOS_TABLE_ENTRY_POINT *EntryPointStructure
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)
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{
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UINTN Index;
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UINT8 Length;
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UINT8 Checksum;
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UINT8 *BytePtr;
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BytePtr = (UINT8*) EntryPointStructure;
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Length = EntryPointStructure->EntryPointLength;
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Checksum = 0;
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for (Index = 0; Index < Length; Index++) {
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Checksum = Checksum + (UINT8) BytePtr[Index];
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}
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if (Checksum != 0) {
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return FALSE;
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} else {
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return TRUE;
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}
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}
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/**
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Get SMBIOS record length.
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@param SmbiosTable SMBIOS pointer.
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**/
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UINTN
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SmbiosTableLength (
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IN SMBIOS_STRUCTURE_POINTER SmbiosTable
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)
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{
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CHAR8 *AChar;
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UINTN Length;
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AChar = (CHAR8 *)(SmbiosTable.Raw + SmbiosTable.Hdr->Length);
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//
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// Each structure shall be terminated by a double-null (SMBIOS spec.7.1)
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//
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while ((*AChar != 0) || (*(AChar + 1) != 0)) {
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AChar ++;
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}
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Length = ((UINTN)AChar - (UINTN)SmbiosTable.Raw + 2);
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return Length;
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}
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/**
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Install all structures from the given SMBIOS structures block
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@param Smbios SMBIOS protocol
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@param TableAddress SMBIOS tables starting address
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**/
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EFI_STATUS
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InstallAllStructures (
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IN EFI_SMBIOS_PROTOCOL *Smbios,
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IN UINT8 *TableAddress
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)
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{
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EFI_STATUS Status;
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SMBIOS_STRUCTURE_POINTER SmbiosTable;
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EFI_SMBIOS_HANDLE SmbiosHandle;
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BOOLEAN NeedSmbiosType0;
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SmbiosTable.Raw = TableAddress;
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if (SmbiosTable.Raw == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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NeedSmbiosType0 = TRUE;
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while (SmbiosTable.Hdr->Type != 127) {
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//
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// Log the SMBIOS data for this structure
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//
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SmbiosHandle = SmbiosTable.Hdr->Handle;
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Status = Smbios->Add (
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Smbios,
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NULL,
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&SmbiosHandle,
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(EFI_SMBIOS_TABLE_HEADER*) SmbiosTable.Raw
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);
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ASSERT_EFI_ERROR (Status);
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if (SmbiosTable.Hdr->Type == 0) {
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NeedSmbiosType0 = FALSE;
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}
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//
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// Get the next structure address
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//
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SmbiosTable.Raw = (UINT8 *)(SmbiosTable.Raw + SmbiosTableLength (SmbiosTable));
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}
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if (NeedSmbiosType0) {
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//
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// Add OVMF default Type 0 (BIOS Information) table
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//
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SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
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Status = Smbios->Add (
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Smbios,
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NULL,
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&SmbiosHandle,
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(EFI_SMBIOS_TABLE_HEADER*) &mOvmfDefaultType0
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);
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ASSERT_EFI_ERROR (Status);
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}
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return EFI_SUCCESS;
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}
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/**
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Installs SMBIOS information for OVMF
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@param ImageHandle Module's image handle
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@param SystemTable Pointer of EFI_SYSTEM_TABLE
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@retval EFI_SUCCESS Smbios data successfully installed
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@retval Other Smbios data was not installed
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**/
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EFI_STATUS
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EFIAPI
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SmbiosTablePublishEntry (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_SMBIOS_PROTOCOL *Smbios;
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SMBIOS_TABLE_ENTRY_POINT *EntryPointStructure;
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UINT8 *SmbiosTables = NULL;
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//
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// Find the SMBIOS protocol
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//
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Status = gBS->LocateProtocol (
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&gEfiSmbiosProtocolGuid,
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NULL,
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(VOID**)&Smbios
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Add bhyve SMBIOS data
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//
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EntryPointStructure = GetBhyveSmbiosTables ();
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if (EntryPointStructure != NULL) {
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SmbiosTables = (UINT8*)(UINTN)EntryPointStructure->TableAddress;
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}
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if (SmbiosTables != NULL) {
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Status = InstallAllStructures (Smbios, SmbiosTables);
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//
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// Free SmbiosTables if allocated by Qemu (i.e., NOT by Xen):
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//
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if (EntryPointStructure == NULL) {
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FreePool (SmbiosTables);
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}
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}
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return Status;
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}
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