Files
system76-edk2/OvmfPkg/Library/PlatformBootManagerLibGrub/PlatformData.c
James Bottomley b261a30c90 OvmfPkg/AmdSev: add Grub Firmware Volume Package
This is used to package up the grub bootloader into a firmware volume
where it can be executed as a shell like the UEFI Shell.  Grub itself
is built as a minimal entity into a Fv and then added as a boot
option.  By default the UEFI shell isn't built but for debugging
purposes it can be enabled and will then be presented as a boot option
(This should never be allowed for secure boot in an external data
centre but may be useful for local debugging).  Finally all other boot
options except grub and possibly the shell are stripped and the boot
timeout forced to 0 so the system will not enter a setup menu and will
only boot to grub.  This is done by copying the
Library/PlatformBootManagerLib into Library/PlatformBootManagerLibGrub
and then customizing it.

Boot failure is fatal to try to prevent secret theft.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3077
Signed-off-by: James Bottomley <jejb@linux.ibm.com>
Message-Id: <20201130202819.3910-4-jejb@linux.ibm.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
[lersek@redhat.com: replace local variable initialization with assignment]
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
[lersek@redhat.com: squash 'OvmfPkg: add "gGrubFileGuid=Grub" to
 GuidCheck.IgnoreDuplicates', reviewed stand-alone by Phil (msgid
 <e6eae551-8563-ccfb-5547-7a97da6d46e5@redhat.com>) and Ard (msgid
 <10aeda37-def6-d9a4-6e02-4c66c1492f57@arm.com>)]
2020-12-14 19:56:18 +00:00

215 lines
5.0 KiB
C

/** @file
Defined the platform specific device path which will be used by
platform Bbd to perform the platform policy connect.
Copyright (C) 2020 James Bottomley, IBM Corporation.
Copyright (c) 2004 - 2017, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "BdsPlatform.h"
#include <Guid/QemuRamfb.h>
#include <Guid/SerialPortLibVendor.h>
//
// Vendor UART Device Path structure
//
#pragma pack (1)
typedef struct {
VENDOR_DEVICE_PATH VendorHardware;
UART_DEVICE_PATH Uart;
VENDOR_DEVICE_PATH TerminalType;
EFI_DEVICE_PATH_PROTOCOL End;
} VENDOR_UART_DEVICE_PATH;
#pragma pack ()
//
// USB Keyboard Device Path structure
//
#pragma pack (1)
typedef struct {
USB_CLASS_DEVICE_PATH Keyboard;
EFI_DEVICE_PATH_PROTOCOL End;
} USB_KEYBOARD_DEVICE_PATH;
#pragma pack ()
//
// QemuRamfb Device Path structure
//
#pragma pack (1)
typedef struct {
VENDOR_DEVICE_PATH Vendor;
ACPI_ADR_DEVICE_PATH AcpiAdr;
EFI_DEVICE_PATH_PROTOCOL End;
} VENDOR_RAMFB_DEVICE_PATH;
#pragma pack ()
ACPI_HID_DEVICE_PATH gPnpPs2KeyboardDeviceNode = gPnpPs2Keyboard;
ACPI_HID_DEVICE_PATH gPnp16550ComPortDeviceNode = gPnp16550ComPort;
UART_DEVICE_PATH gUartDeviceNode = gUart;
VENDOR_DEVICE_PATH gTerminalTypeDeviceNode = gPcAnsiTerminal;
//
// Platform specific keyboard device path
//
//
// Debug Agent UART Device Path
//
VENDOR_UART_DEVICE_PATH gDebugAgentUartDevicePath = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
EFI_DEBUG_AGENT_GUID,
},
{
{
MESSAGING_DEVICE_PATH,
MSG_UART_DP,
{
(UINT8) (sizeof (UART_DEVICE_PATH)),
(UINT8) ((sizeof (UART_DEVICE_PATH)) >> 8)
}
},
0, // Reserved
0, // BaudRate - Default
0, // DataBits - Default
0, // Parity - Default
0, // StopBits - Default
},
gPcAnsiTerminal,
gEndEntire
};
STATIC USB_KEYBOARD_DEVICE_PATH gUsbKeyboardDevicePath = {
{
{
MESSAGING_DEVICE_PATH,
MSG_USB_CLASS_DP,
{
(UINT8)sizeof (USB_CLASS_DEVICE_PATH),
(UINT8)(sizeof (USB_CLASS_DEVICE_PATH) >> 8)
}
},
0xFFFF, // VendorId: any
0xFFFF, // ProductId: any
3, // DeviceClass: HID
1, // DeviceSubClass: boot
1 // DeviceProtocol: keyboard
},
gEndEntire
};
STATIC VENDOR_RAMFB_DEVICE_PATH gQemuRamfbDevicePath = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
QEMU_RAMFB_GUID,
},
{
{
ACPI_DEVICE_PATH,
ACPI_ADR_DP,
{
(UINT8) (sizeof (ACPI_ADR_DEVICE_PATH)),
(UINT8) ((sizeof (ACPI_ADR_DEVICE_PATH)) >> 8)
}
},
ACPI_DISPLAY_ADR (
1, // DeviceIdScheme
0, // HeadId
0, // NonVgaOutput
1, // BiosCanDetect
0, // VendorInfo
ACPI_ADR_DISPLAY_TYPE_EXTERNAL_DIGITAL, // Type
0, // Port
0 // Index
),
},
gEndEntire
};
STATIC VENDOR_UART_DEVICE_PATH gXenConsoleDevicePath = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
EDKII_SERIAL_PORT_LIB_VENDOR_GUID
},
{
{
MESSAGING_DEVICE_PATH,
MSG_UART_DP,
{
(UINT8) (sizeof (UART_DEVICE_PATH)),
(UINT8) ((sizeof (UART_DEVICE_PATH)) >> 8)
}
},
0,
FixedPcdGet64 (PcdUartDefaultBaudRate),
FixedPcdGet8 (PcdUartDefaultDataBits),
FixedPcdGet8 (PcdUartDefaultParity),
FixedPcdGet8 (PcdUartDefaultStopBits),
},
gPcAnsiTerminal,
gEndEntire
};
//
// Predefined platform default console device path
//
PLATFORM_CONSOLE_CONNECT_ENTRY gPlatformConsole[] = {
{
(EFI_DEVICE_PATH_PROTOCOL *) &gDebugAgentUartDevicePath,
(CONSOLE_OUT | CONSOLE_IN | STD_ERROR)
},
{
(EFI_DEVICE_PATH_PROTOCOL *)&gUsbKeyboardDevicePath,
CONSOLE_IN
},
{
(EFI_DEVICE_PATH_PROTOCOL *)&gQemuRamfbDevicePath,
CONSOLE_OUT
},
{
NULL,
0
}
};
PLATFORM_CONSOLE_CONNECT_ENTRY gXenPlatformConsole[] = {
{
(EFI_DEVICE_PATH_PROTOCOL *)&gXenConsoleDevicePath,
(CONSOLE_OUT | CONSOLE_IN | STD_ERROR)
},
{
NULL,
0
}
};
//
// Predefined platform connect sequence
//
EFI_DEVICE_PATH_PROTOCOL *gPlatformConnectSequence[] = { NULL };