799d88c1ba
Leif suggested that FDF include files should preferably refer with their names to the FDF file sections from which they are included. Therefore - rename "OvmfPkg.fdf.inc" to "OvmfPkgDefines.fdf.inc" (included from the [Defines] section), - rename "DecomprScratchEnd.fdf.inc" to "FvmainCompactScratchEnd.fdf.inc" (included under the [FV.FVMAIN_COMPACT] section). Cc: Anthony Perard <anthony.perard@citrix.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Julien Grall <julien@xen.org> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Philippe Mathieu-Daudé <philmd@redhat.com> Ref: http://mid.mail-archive.com/20200312142006.GG23627@bivouac.eciton.net Ref: https://edk2.groups.io/g/devel/message/55812 Suggested-by: Leif Lindholm <leif@nuviainc.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20200312223555.29267-3-lersek@redhat.com> Reviewed-by: Leif Lindholm <leif@nuviainc.com>
66 lines
3.3 KiB
PHP
66 lines
3.3 KiB
PHP
## @file
|
|
# This FDF include file computes the end of the scratch buffer used in
|
|
# DecompressMemFvs() [OvmfPkg/Sec/SecMain.c]. It is based on the decompressed
|
|
# (ie. original) size of the LZMA-compressed section of the one FFS file in
|
|
# the FVMAIN_COMPACT firmware volume.
|
|
#
|
|
# Copyright (C) 2015, Red Hat, Inc.
|
|
#
|
|
# SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
##
|
|
|
|
# The GUID EE4E5898-3914-4259-9D6E-DC7BD79403CF means "LzmaCustomDecompress".
|
|
# The decompressed output will have the following structure (see the file
|
|
# "9E21FD93-9C72-4c15-8C4B-E77F1DB2D792SEC1.guided.dummy" in the
|
|
# Build/Ovmf*/*/FV/Ffs/9E21FD93-9C72-4c15-8C4B-E77F1DB2D792/ directory):
|
|
#
|
|
# Size Contents
|
|
# ------------------- --------------------------------------------------------
|
|
# 4 EFI_COMMON_SECTION_HEADER, stating size 124 (0x7C) and
|
|
# type 0x19 (EFI_SECTION_RAW). The purpose of this section
|
|
# is to pad the start of PEIFV to 128 bytes.
|
|
# 120 Zero bytes (padding).
|
|
#
|
|
# 4 EFI_COMMON_SECTION_HEADER, stating size
|
|
# (PcdOvmfPeiMemFvSize + 4), and type 0x17
|
|
# (EFI_SECTION_FIRMWARE_VOLUME_IMAGE).
|
|
# PcdOvmfPeiMemFvSize PEIFV. Note that the above sizes pad the offset of this
|
|
# object to 128 bytes. See also the "guided.dummy.txt"
|
|
# file in the same directory.
|
|
#
|
|
# 4 EFI_COMMON_SECTION_HEADER, stating size 12 (0xC) and
|
|
# type 0x19 (EFI_SECTION_RAW). The purpose of this section
|
|
# is to pad the start of DXEFV to 16 bytes.
|
|
# 8 Zero bytes (padding).
|
|
#
|
|
# 4 EFI_COMMON_SECTION_HEADER, stating size
|
|
# (PcdOvmfDxeMemFvSize + 4), and type 0x17
|
|
# (EFI_SECTION_FIRMWARE_VOLUME_IMAGE).
|
|
# PcdOvmfDxeMemFvSize DXEFV. Note that the above sizes pad the offset of this
|
|
# object to 16 bytes. See also the "guided.dummy.txt" file
|
|
# in the same directory.
|
|
#
|
|
# The total size after decompression is (128 + PcdOvmfPeiMemFvSize + 16 +
|
|
# PcdOvmfDxeMemFvSize).
|
|
|
|
DEFINE OUTPUT_SIZE = (128 + gUefiOvmfPkgTokenSpaceGuid.PcdOvmfPeiMemFvSize + 16 + gUefiOvmfPkgTokenSpaceGuid.PcdOvmfDxeMemFvSize)
|
|
|
|
# LzmaCustomDecompressLib uses a constant scratch buffer size of 64KB; see
|
|
# SCRATCH_BUFFER_REQUEST_SIZE in
|
|
# "MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaDecompress.c".
|
|
|
|
DEFINE DECOMP_SCRATCH_SIZE = 0x00010000
|
|
|
|
# Note: when we use PcdOvmfDxeMemFvBase in this context, BaseTools have not yet
|
|
# offset it with MEMFD's base address. For that reason we have to do it manually.
|
|
#
|
|
# The calculation below mirrors DecompressMemFvs() [OvmfPkg/Sec/SecMain.c].
|
|
|
|
DEFINE OUTPUT_BASE = ($(MEMFD_BASE_ADDRESS) + gUefiOvmfPkgTokenSpaceGuid.PcdOvmfDxeMemFvBase + 0x00100000)
|
|
DEFINE DECOMP_SCRATCH_BASE_UNALIGNED = ($(OUTPUT_BASE) + $(OUTPUT_SIZE))
|
|
DEFINE DECOMP_SCRATCH_BASE_ALIGNMENT = 0x000FFFFF
|
|
DEFINE DECOMP_SCRATCH_BASE_MASK = 0xFFF00000
|
|
DEFINE DECOMP_SCRATCH_BASE = (($(DECOMP_SCRATCH_BASE_UNALIGNED) + $(DECOMP_SCRATCH_BASE_ALIGNMENT)) & $(DECOMP_SCRATCH_BASE_MASK))
|
|
|
|
SET gUefiOvmfPkgTokenSpaceGuid.PcdOvmfDecompressionScratchEnd = $(DECOMP_SCRATCH_BASE) + $(DECOMP_SCRATCH_SIZE)
|