7e5f1b6738
In general, we should not present two separate (and inevitably different) hardware descriptions to the OS, in the form of ACPI tables and a device tree blob. For this reason, we recently added the logic to ArmVirtQemu to only expose the ACPI 2.0 entry point if no DT binary is being passed, and vice versa. However, this is arguably a regression for those who relied on DT descriptions being available, even if the former behavior can be restored by passing the -no-acpi switch to QEMU. So allow a secret handshake with the UEFI Shell, to set a variable that will result in ACPI to be disabled on subsequent boots even if -no-acpi was not passed on the QEMU command line. setvar -nv -bs -guid 50bea1e5-a2c5-46e9-9b3a-59596516b00a ForceNoAcpi =01 To delete the variable and revert to the old situation, simply omit the value after the = setvar -nv -bs -guid 50bea1e5-a2c5-46e9-9b3a-59596516b00a ForceNoAcpi = Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com>
70 lines
2.9 KiB
Plaintext
70 lines
2.9 KiB
Plaintext
#/** @file
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#
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# Copyright (c) 2014, Linaro Limited. All rights reserved.
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#**/
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[Defines]
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DEC_SPECIFICATION = 0x00010005
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PACKAGE_NAME = ArmVirtPkg
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PACKAGE_GUID = A0B31216-508E-4025-BEAB-56D836C66F0A
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PACKAGE_VERSION = 0.1
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################################################################################
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#
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# Include Section - list of Include Paths that are provided by this package.
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# Comments are used for Keywords and Module Types.
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#
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# Supported Module Types:
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# BASE SEC PEI_CORE PEIM DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER DXE_SAL_DRIVER UEFI_DRIVER UEFI_APPLICATION
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#
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################################################################################
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[Includes.common]
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Include # Root include for the package
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[Guids.common]
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gArmVirtTokenSpaceGuid = { 0x0B6F5CA7, 0x4F53, 0x445A, { 0xB7, 0x6E, 0x2E, 0x36, 0x5B, 0x80, 0x63, 0x66 } }
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gEarlyPL011BaseAddressGuid = { 0xB199DEA9, 0xFD5C, 0x4A84, { 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } }
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gArmVirtVariableGuid = { 0x50bea1e5, 0xa2c5, 0x46e9, { 0x9b, 0x3a, 0x59, 0x59, 0x65, 0x16, 0xb0, 0x0a } }
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[Protocols]
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gFdtClientProtocolGuid = { 0xE11FACA0, 0x4710, 0x4C8E, { 0xA7, 0xA2, 0x01, 0xBA, 0xA2, 0x59, 0x1B, 0x4C } }
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[PcdsFixedAtBuild, PcdsPatchableInModule]
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#
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# This is the physical address where the device tree is expected to be stored
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# upon first entry into UEFI. This needs to be a FixedAtBuild PCD, so that we
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# can do a first pass over the device tree in the SEC phase to discover the
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# UART base address.
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#
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gArmVirtTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress|0x0|UINT64|0x00000001
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#
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# Padding in bytes to add to the device tree allocation, so that the DTB can
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# be modified in place (default: 256 bytes)
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#
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gArmVirtTokenSpaceGuid.PcdDeviceTreeAllocationPadding|256|UINT32|0x00000002
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#
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# Binary representation of the GUID that determines the terminal type. The
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# size must be exactly 16 bytes. The default value corresponds to
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# EFI_VT_100_GUID.
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#
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gArmVirtTokenSpaceGuid.PcdTerminalTypeGuidBuffer|{0x65, 0x60, 0xA6, 0xDF, 0x19, 0xB4, 0xD3, 0x11, 0x9A, 0x2D, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0x4D}|VOID*|0x00000007
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[PcdsDynamic]
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#
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# Whether to force disable ACPI, regardless of the fw_cfg settings
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# exposed by QEMU
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#
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gArmVirtTokenSpaceGuid.PcdForceNoAcpi|0x0|BOOLEAN|0x00000003
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