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-rw-r--r--src/arch/i386/Makefile1
-rw-r--r--src/arch/i386/Makefile.efi24
-rw-r--r--src/arch/i386/include/bits/nap.h1
-rw-r--r--src/arch/i386/include/gpxe/efi/efix86_nap.h16
-rw-r--r--src/arch/i386/interface/efi/efix86_nap.c46
-rw-r--r--src/arch/i386/prefix/efiprefix.S175
-rw-r--r--src/arch/i386/scripts/efi.lds174
7 files changed, 437 insertions, 0 deletions
diff --git a/src/arch/i386/Makefile b/src/arch/i386/Makefile
index 1959fbfd..dac53493 100644
--- a/src/arch/i386/Makefile
+++ b/src/arch/i386/Makefile
@@ -64,6 +64,7 @@ SRCDIRS += arch/i386/drivers/net
SRCDIRS += arch/i386/interface/pcbios
SRCDIRS += arch/i386/interface/pxe
SRCDIRS += arch/i386/interface/syslinux
+SRCDIRS += arch/i386/interface/efi
# The various xxx_loader.c files are #included into core/loader.c and
# should not be compiled directly.
diff --git a/src/arch/i386/Makefile.efi b/src/arch/i386/Makefile.efi
new file mode 100644
index 00000000..f1eb6fdf
--- /dev/null
+++ b/src/arch/i386/Makefile.efi
@@ -0,0 +1,24 @@
+# -*- makefile -*- : Force emacs to use Makefile mode
+
+# The EFI linker script
+#
+LDSCRIPT = arch/i386/scripts/efi.lds
+
+# Use a relocatable link; we perform final relocations in the efilink utility.
+#
+LDFLAGS += -r -d -S
+
+# Media types.
+#
+NON_AUTO_MEDIA += efi
+
+# Rule for building EFI files
+#
+$(BIN)/%.efi.tmp-reloc : $(BIN)/%.efi.tmp $(EFILINK)
+ $(QM)$(ECHO) " [EFILINK] $@"
+ $(Q)$(LD) -e 0 -o /dev/null $< # Check for unresolved symbols
+ $(Q)$(EFILINK) $< $@
+
+$(BIN)/%.efi : $(BIN)/%.efi.tmp-reloc
+ $(QM)$(ECHO) " [FINISH] $@"
+ $(Q)$(OBJCOPY) -Obinary $< $@
diff --git a/src/arch/i386/include/bits/nap.h b/src/arch/i386/include/bits/nap.h
index 2c85444a..f8ba7a7c 100644
--- a/src/arch/i386/include/bits/nap.h
+++ b/src/arch/i386/include/bits/nap.h
@@ -8,5 +8,6 @@
*/
#include <gpxe/bios_nap.h>
+#include <gpxe/efi/efix86_nap.h>
#endif /* _BITS_MAP_H */
diff --git a/src/arch/i386/include/gpxe/efi/efix86_nap.h b/src/arch/i386/include/gpxe/efi/efix86_nap.h
new file mode 100644
index 00000000..91424c54
--- /dev/null
+++ b/src/arch/i386/include/gpxe/efi/efix86_nap.h
@@ -0,0 +1,16 @@
+#ifndef _GPXE_EFIX86_NAP_H
+#define _GPXE_EFIX86_NAP_H
+
+/** @file
+ *
+ * EFI CPU sleeping
+ *
+ */
+
+#ifdef NAP_EFIX86
+#define NAP_PREFIX_efix86
+#else
+#define NAP_PREFIX_efix86 __efix86_
+#endif
+
+#endif /* _GPXE_EFIX86_NAP_H */
diff --git a/src/arch/i386/interface/efi/efix86_nap.c b/src/arch/i386/interface/efi/efix86_nap.c
new file mode 100644
index 00000000..45e99a68
--- /dev/null
+++ b/src/arch/i386/interface/efi/efix86_nap.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <gpxe/nap.h>
+#include <gpxe/efi/efi.h>
+
+/** @file
+ *
+ * gPXE CPU sleeping API for EFI
+ *
+ */
+
+/**
+ * Sleep until next interrupt
+ *
+ */
+static void efix86_cpu_nap ( void ) {
+ /*
+ * I can't find any EFI API that allows us to put the CPU to
+ * sleep. The CpuSleep() function is defined in CpuLib.h, but
+ * isn't part of any exposed protocol so we have no way to
+ * call it.
+ *
+ * The EFI shell doesn't seem to bother sleeping the CPU; it
+ * just sits there idly burning power.
+ *
+ */
+ __asm__ __volatile__ ( "hlt" );
+}
+
+PROVIDE_NAP ( efix86, cpu_nap, efix86_cpu_nap );
diff --git a/src/arch/i386/prefix/efiprefix.S b/src/arch/i386/prefix/efiprefix.S
new file mode 100644
index 00000000..c4cf68e4
--- /dev/null
+++ b/src/arch/i386/prefix/efiprefix.S
@@ -0,0 +1,175 @@
+ .text
+ .code32
+ .arch i386
+ .section ".prefix", "a", @progbits
+ .org 0x00
+
+ /* DOS (.com) header
+ *
+ * EFI executables seem to leave most of this empty
+ */
+mzhdr:
+ .ascii "MZ" /* Magic number */
+ .word 0 /* Bytes on last page of file */
+ .word 0 /* Pages in file */
+ .word 0 /* Relocations */
+ .word 0 /* Size of header in paragraphs */
+ .word 0 /* Minimum extra paragraphs needed */
+ .word 0 /* Maximum extra paragraphs needed */
+ .word 0 /* Initial (relative) SS value */
+ .word 0 /* Initial SP value */
+ .word 0 /* "Checksum" */
+ .word 0 /* Initial IP value */
+ .word 0 /* Initial (relative) CS value */
+ .word 0 /* File address of relocation table */
+ .word 0 /* Ovesrlay number */
+ .word 0, 0, 0, 0 /* Reserved words */
+ .word 0 /* OEM identifier (for e_oeminfo) */
+ .word 0 /* OEM information; e_oemid specific */
+ .word 0, 0, 0, 0, 0 /* Reserved words */
+ .word 0, 0, 0, 0, 0 /* Reserved words */
+ .long pehdr_lma /* File address of new exe header */
+ .size mzhdr, . - mzhdr
+
+ /* PE header */
+ .org 0xc0 /* For compatibility with MS toolchain */
+pehdr:
+ .ascii "PE\0\0" /* Magic number */
+ .word 0x014c /* CPU architecture: i386 */
+ .word num_pe_sections /* Number of sections */
+ .long 0x10d1a884 /* Timestamp */
+ .long 0 /* Symbol table */
+ .long 0 /* Number of symbols */
+ .word opthdr_size /* Size of optional header */
+ .word 0x2102 /* Characteristics */
+ .size pehdr, . - pehdr
+ .equ pehdr_lma, pehdr - mzhdr
+
+ /* "Optional" header */
+opthdr:
+ .word 0x010b /* Magic number */
+ .byte 0 /* Linker major version number */
+ .byte 0 /* Linker minor version number */
+ .long _text_filesz /* Size of text section */
+ .long _data_filesz /* Size of data section */
+ .long _bss_filesz /* Size of bss section */
+ .long efi_entry_lma /* Entry point */
+ .long _text_lma /* Text section start RVA */
+ .long _data_lma /* Data section start RVA */
+ .long 0 /* Image base address */
+ .long _max_align /* Section alignment */
+ .long _max_align /* File alignment */
+ .word 0 /* Operating system major version number */
+ .word 0 /* Operating system minor version number */
+ .word 0 /* Image major version number */
+ .word 0 /* Image minor version number */
+ .word 0 /* Subsystem major version number */
+ .word 0 /* Subsystem minor version number */
+ .long 0 /* Reserved */
+ .long _filesz /* Total image size */
+ .long _prefix_filesz /* Total header size */
+ .long 0 /* "Checksum" */
+ .word 0x0a /* Subsystem: EFI */
+ .word 0 /* DLL characteristics */
+ .long 0 /* Size of stack reserve */
+ .long 0 /* Size of stack commit */
+ .long 0 /* Size of heap reserve */
+ .long 0 /* Size of heap commit */
+ .long 0 /* Loader flags */
+ .long 16 /* Number of data directory entries */
+ .long 0, 0 /* Export directory */
+ .long 0, 0 /* Import directory */
+ .long 0, 0 /* Resource directory */
+ .long 0, 0 /* Exception directory */
+ .long 0, 0 /* Security directory */
+ .long _reloc_lma, _reloc_filesz /* Base relocation directory */
+ .long debugdir_lma, debugdir_size /* Debug directory */
+ .long 0, 0 /* Description directory */
+ .long 0, 0 /* Special directory */
+ .long 0, 0 /* Thread storage directory */
+ .long 0, 0 /* Load configuration directory */
+ .long 0, 0 /* Bound import directory */
+ .long 0, 0 /* Import address table directory */
+ .long 0, 0 /* Delay import directory */
+ .long 0, 0 /* Reserved */
+ .long 0, 0 /* Reserved */
+ .size opthdr, . - opthdr
+ .equ opthdr_size, . - opthdr
+
+ /* PE sections */
+pe_sections:
+text_section:
+ .asciz ".text" /* Section name */
+ .align 8
+ .long _text_filesz /* Section size */
+ .long _text_lma /* Relative Virtual Address */
+ .long _text_filesz /* Section size (rounded up) */
+ .long _text_lma /* Pointer to raw data */
+ .long 0 /* Link-time relocations */
+ .long 0 /* Line numbers */
+ .word 0 /* Number of link-time relocations */
+ .word 0 /* Number of line numbers */
+ .long 0x68000020 /* Characteristics */
+rodata_section:
+ .asciz ".rodata" /* Section name */
+ .align 8
+ .long _rodata_filesz /* Section size */
+ .long _rodata_lma /* Relative Virtual Address */
+ .long _rodata_filesz /* Section size (rounded up) */
+ .long _rodata_lma /* Pointer to raw data */
+ .long 0 /* Link-time relocations */
+ .long 0 /* Line numbers */
+ .word 0 /* Number of link-time relocations */
+ .word 0 /* Number of line numbers */
+ .long 0x48000040 /* Characteristics */
+data_section:
+ .asciz ".data" /* Section name */
+ .align 8
+ .long _data_filesz /* Section size */
+ .long _data_lma /* Relative Virtual Address */
+ .long _data_filesz /* Section size (rounded up) */
+ .long _data_lma /* Pointer to raw data */
+ .long 0 /* Link-time relocations */
+ .long 0 /* Line numbers */
+ .word 0 /* Number of link-time relocations */
+ .word 0 /* Number of line numbers */
+ .long 0xc8000040 /* Characteristics */
+reloc_section:
+ .asciz ".reloc" /* Section name */
+ .align 8
+ .long _reloc_filesz /* Section size */
+ .long _reloc_lma /* Relative Virtual Address */
+ .long _reloc_filesz /* Section size (rounded up) */
+ .long _reloc_lma /* Pointer to raw data */
+ .long 0 /* Link-time relocations */
+ .long 0 /* Line numbers */
+ .word 0 /* Number of link-time relocations */
+ .word 0 /* Number of line numbers */
+ .long 0x42000040 /* Characteristics */
+
+pe_sections_end:
+ .size pe_sections, . - pe_sections
+ .equ num_pe_sections, ( ( . - pe_sections ) / 0x28 )
+
+ /* Debug directory */
+ .section ".rodata"
+ .globl debugdir
+debugdir:
+ .long 0 /* Characteristics */
+ .long 0x10d1a884 /* Timestamp */
+ .word 0 /* Major version */
+ .word 0 /* Minor version */
+ .long 0x02 /* RSDS? */
+ .long codeview_rsds_size /* Size of data */
+ .long codeview_rsds_lma /* RVA */
+ .long codeview_rsds_lma /* File offset */
+ .size debugdir, . - debugdir
+ .equ debugdir_size, . - debugdir
+ /* Codeview structure */
+ .globl codeview_rsds
+codeview_rsds:
+ .ascii "RSDS" /* Magic number */
+ .long 0, 0, 0, 0, 0 /* Unused by EFI */
+ .asciz "efiprefix.pdb"
+ .size codeview_rsds, . - codeview_rsds
+ .equ codeview_rsds_size, . - codeview_rsds
diff --git a/src/arch/i386/scripts/efi.lds b/src/arch/i386/scripts/efi.lds
new file mode 100644
index 00000000..8d9ecd77
--- /dev/null
+++ b/src/arch/i386/scripts/efi.lds
@@ -0,0 +1,174 @@
+/* -*- sh -*- */
+
+/*
+ * Linker script for EFI images
+ *
+ */
+
+EXTERN ( efi_entry )
+
+SECTIONS {
+
+ /* The file starts at a virtual address of zero, and sections are
+ * contiguous. Each section is aligned to at least _max_align,
+ * which defaults to 32. Load addresses are equal to virtual
+ * addresses.
+ */
+
+ . = 0;
+ PROVIDE ( _max_align = 32 );
+
+ /*
+ * The prefix
+ *
+ */
+
+ .prefix : AT ( _prefix_lma ) {
+ _prefix = .;
+ *(.prefix)
+ *(.prefix.*)
+ _mprefix = .;
+ } .prefix_bss (NOLOAD) : {
+ _eprefix = .;
+ }
+ _prefix_filesz = ABSOLUTE ( _mprefix - _prefix );
+ _prefix_memsz = ABSOLUTE ( _eprefix - _prefix );
+
+ /*
+ * The text section
+ *
+ */
+
+ . = ALIGN ( _max_align );
+ .text : AT ( _text_lma ) {
+ _text = .;
+ *(.text)
+ *(.text.*)
+ _mtext = .;
+ } .text_bss (NOLOAD) : {
+ _etext = .;
+ }
+ _text_filesz = ABSOLUTE ( _mtext - _text );
+ _text_memsz = ABSOLUTE ( _etext - _text );
+
+ /*
+ * The rodata section
+ *
+ */
+
+ . = ALIGN ( _max_align );
+ .rodata : AT ( _rodata_lma ) {
+ _rodata = .;
+ *(.rodata)
+ *(.rodata.*)
+ _mrodata = .;
+ } .rodata_bss (NOLOAD) : {
+ _erodata = .;
+ }
+ _rodata_filesz = ABSOLUTE ( _mrodata - _rodata );
+ _rodata_memsz = ABSOLUTE ( _erodata - _rodata );
+
+ /*
+ * The data section
+ *
+ */
+
+ . = ALIGN ( _max_align );
+ .data : AT ( _data_lma ) {
+ _data = .;
+ *(.data)
+ *(.data.*)
+ *(SORT(.tbl.*)) /* Various tables. See include/tables.h */
+ /* EFI seems to not support proper bss sections */
+ *(.bss)
+ *(.bss.*)
+ *(COMMON)
+ *(.stack)
+ *(.stack.*)
+ _mdata = .;
+ } .data_bss (NOLOAD) : {
+ _edata = .;
+ }
+ _data_filesz = ABSOLUTE ( _mdata - _data );
+ _data_memsz = ABSOLUTE ( _edata - _data );
+
+ /*
+ * The bss section
+ *
+ */
+
+ . = ALIGN ( _max_align );
+ .bss : AT ( _bss_lma ) {
+ _bss = .;
+ /* EFI seems to not support proper bss sections */
+ _mbss = .;
+ } .bss_bss (NOLOAD) : {
+ _ebss = .;
+ }
+ _bss_filesz = ABSOLUTE ( _mbss - _bss );
+ _bss_memsz = ABSOLUTE ( _ebss - _bss );
+
+ /*
+ * The reloc section
+ *
+ */
+
+ . = ALIGN ( _max_align );
+ .reloc : AT ( _reloc_lma ) {
+ _reloc = .;
+ /* Provide some dummy contents to force ld to include this
+ * section. It will be created by the efilink utility.
+ */
+ . += 1;
+ _mreloc = .;
+ } .reloc_bss (NOLOAD) : {
+ _ereloc = .;
+ }
+ _reloc_filesz = ABSOLUTE ( _mreloc - _reloc );
+ _reloc_memsz = ABSOLUTE ( _ereloc - _reloc );
+
+ _filesz = ABSOLUTE ( . );
+
+ /*
+ * Weak symbols that need zero values if not otherwise defined
+ *
+ */
+
+ .weak 0x0 : {
+ _weak = .;
+ *(.weak)
+ _eweak = .;
+ }
+ _assert = ASSERT ( ( _weak == _eweak ), ".weak is non-zero length" );
+
+ /*
+ * Dispose of the comment and note sections to make the link map
+ * easier to read
+ *
+ */
+
+ /DISCARD/ : {
+ *(.comment)
+ *(.note)
+ }
+
+ /*
+ * Load address calculations.
+ *
+ */
+
+ _prefix_lma = ABSOLUTE ( _prefix );
+ _text_lma = ABSOLUTE ( _text );
+ _rodata_lma = ABSOLUTE ( _rodata );
+ _data_lma = ABSOLUTE ( _data );
+ _bss_lma = ABSOLUTE ( _bss );
+ _reloc_lma = ABSOLUTE ( _reloc );
+
+ /*
+ * Load addresses required by the prefix
+ *
+ */
+ efi_entry_lma = ABSOLUTE ( efi_entry );
+ debugdir_lma = ABSOLUTE ( debugdir );
+ codeview_rsds_lma = ABSOLUTE ( codeview_rsds );
+}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-11 18:51:21 +0200