All PC machines now use the multiboot_dma.bin binary,
we can remove the non-DMA version (multiboot.bin).
Suggested-by: Thomas Huth <th...@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
pc-bios/optionrom/optionrom.h | 4 -
hw/i386/pc.c | 1 -
pc-bios/meson.build | 1 -
pc-bios/multiboot.bin | Bin 1024 -> 0 bytes
pc-bios/optionrom/Makefile | 2 +-
pc-bios/optionrom/multiboot.S | 232 -----------------------------
pc-bios/optionrom/multiboot_dma.S | 234 +++++++++++++++++++++++++++++-
7 files changed, 233 insertions(+), 241 deletions(-)
delete mode 100644 pc-bios/multiboot.bin
delete mode 100644 pc-bios/optionrom/multiboot.S
diff --git a/pc-bios/optionrom/optionrom.h b/pc-bios/optionrom/optionrom.h
index 7bcdf0eeb24..2e6e2493f83 100644
--- a/pc-bios/optionrom/optionrom.h
+++ b/pc-bios/optionrom/optionrom.h
@@ -117,16 +117,12 @@
*
* Clobbers: %eax, %edx, %es, %ecx, %edi and adresses %esp-20 to %esp
*/
-#ifdef USE_FW_CFG_DMA
#define read_fw_blob_dma(var) \
read_fw var ## _SIZE; \
mov %eax, %ecx; \
read_fw var ## _ADDR; \
mov %eax, %edi ; \
read_fw_dma var ## _DATA, %ecx, %edi
-#else
-#define read_fw_blob_dma(var) read_fw_blob(var)
-#endif
#define read_fw_blob_pre(var) \
read_fw var ## _SIZE; \
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 49632b69d29..524d2fd98e8 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -657,7 +657,6 @@ void xen_load_linux(PCMachineState *pcms)
assert(!strcmp(option_rom[i].name, "linuxboot.bin") ||
!strcmp(option_rom[i].name, "linuxboot_dma.bin") ||
!strcmp(option_rom[i].name, "pvh.bin") ||
- !strcmp(option_rom[i].name, "multiboot.bin") ||
!strcmp(option_rom[i].name, "multiboot_dma.bin"));
rom_add_option(option_rom[i].name, option_rom[i].bootindex);
}
diff --git a/pc-bios/meson.build b/pc-bios/meson.build
index 79bb2e18008..f2d4dc416a4 100644
--- a/pc-bios/meson.build
+++ b/pc-bios/meson.build
@@ -62,7 +62,6 @@ blobs = [
'efi-e1000e.rom',
'efi-vmxnet3.rom',
'qemu-nsis.bmp',
- 'multiboot.bin',
'multiboot_dma.bin',
'linuxboot.bin',
'linuxboot_dma.bin',
diff --git a/pc-bios/multiboot.bin b/pc-bios/multiboot.bin
deleted file mode 100644
index
e772713c95749bee82c20002b50ec6d05b2d4987..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001
literal 1024
zcmeHFF-Tic6utlZQ$OjD#Hxcx2u0GNQv6GySOkZR(ulaX<>%N!Y#>cWhY}nf36J7X
zN(%*X6NHY>xcqO11dG^02a8L@B~ihln|%1*|7(haWa`)l@80w7;U4Ziyv0rZ8{K-w
zX(Ib3tLZ)RgZ}w1ei{~QEqQq9q1J-iHc<Nk_t=0qf%XfPZVHw2DY#ujc2P|}*P%6X
z5J{pPlX4<yP&N5pXK;s@UhB~&!E&UdqEwGZF6xQMIcu9YL#zeSRCoLGt{Nh+08t>}
z{m%E-b32A??+@XljSYirtWObwngi<ymS1Ta*dFGMp;8@=_3Z52!v09{UU~`QnFsB_
z7BiEC)uZxH%SW9kPWCicN{_iUjmk<~D^H|R%@|m9%43Woc(Pkeq%n{&8ND5Z*tPt#
zJua+xXAQhN4K(1MMs0{u_6sp>l#NmvPZ7KC<lsLdQgMFC@A6POvMoDMgW=M+K;T<o
zTkpnNq6x*`vM0CGE>t40l-CQ}*)y<y--c)(x}o&1TMzwX+ToGS@VER4zR&s70fl+(
qI)9<-H_-!n#lLJmGq*^~<$US&%R-@)$`@YPx#A6#|L`9<;9UXPG71m?
diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile
index 30d07026c79..1183ef88922 100644
--- a/pc-bios/optionrom/Makefile
+++ b/pc-bios/optionrom/Makefile
@@ -2,7 +2,7 @@ include config.mak
SRC_DIR := $(TOPSRC_DIR)/pc-bios/optionrom
VPATH = $(SRC_DIR)
-all: multiboot.bin multiboot_dma.bin linuxboot.bin linuxboot_dma.bin
kvmvapic.bin pvh.bin
+all: multiboot_dma.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin pvh.bin
# Dummy command so that make thinks it has done something
@true
diff --git a/pc-bios/optionrom/multiboot.S b/pc-bios/optionrom/multiboot.S
deleted file mode 100644
index 181a4b03a3f..00000000000
--- a/pc-bios/optionrom/multiboot.S
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * Multiboot Option ROM
- *
- * 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
- * (at your option) 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, see <http://www.gnu.org/licenses/>.
- *
- * Copyright Novell Inc, 2009
- * Authors: Alexander Graf <ag...@suse.de>
- */
-
-#include "optionrom.h"
-
-#define BOOT_ROM_PRODUCT "multiboot loader"
-
-#define MULTIBOOT_MAGIC 0x2badb002
-
-#define GS_PROT_JUMP 0
-#define GS_GDT_DESC 6
-
-
-BOOT_ROM_START
-
-run_multiboot:
-
- cli
- cld
-
- mov %cs, %eax
- shl $0x4, %eax
-
- /* set up a long jump descriptor that is PC relative */
-
- /* move stack memory to %gs */
- mov %ss, %ecx
- shl $0x4, %ecx
- mov %esp, %ebx
- add %ebx, %ecx
- sub $0x20, %ecx
- sub $0x30, %esp
- shr $0x4, %ecx
- mov %cx, %gs
-
- /* now push the indirect jump descriptor there */
- mov (prot_jump), %ebx
- add %eax, %ebx
- movl %ebx, %gs:GS_PROT_JUMP
- mov $8, %bx
- movw %bx, %gs:GS_PROT_JUMP + 4
-
- /* fix the gdt descriptor to be PC relative */
- movw (gdt_desc), %bx
- movw %bx, %gs:GS_GDT_DESC
- movl (gdt_desc+2), %ebx
- add %eax, %ebx
- movl %ebx, %gs:GS_GDT_DESC + 2
-
- xor %eax, %eax
- mov %eax, %es
-
- /* Read the bootinfo struct into RAM */
- read_fw_blob_dma(FW_CFG_INITRD)
-
- /* FS = bootinfo_struct */
- read_fw FW_CFG_INITRD_ADDR
- shr $4, %eax
- mov %ax, %fs
-
- /* Account for the EBDA in the multiboot structure's e801
- * map.
- */
- int $0x12
- cwtl
- movl %eax, %fs:4
-
- /* ES = mmap_addr */
- mov %fs:48, %eax
- shr $4, %eax
- mov %ax, %es
-
- /* Initialize multiboot mmap structs using int 0x15(e820) */
- xor %ebx, %ebx
- /* Start storing mmap data at %es:0 */
- xor %edi, %edi
-
-mmap_loop:
- /* The multiboot entry size has offset -4, so leave some space */
- add $4, %di
- /* entry size (mmap struct) & max buffer size (int15) */
- movl $20, %ecx
- /* e820 */
- movl $0x0000e820, %eax
- /* 'SMAP' magic */
- movl $0x534d4150, %edx
- int $0x15
-
-mmap_check_entry:
- /* Error or last entry already done? */
- jb mmap_done
-
-mmap_store_entry:
- /* store entry size */
- /* old as(1) doesn't like this insn so emit the bytes instead:
- movl %ecx, %es:-4(%edi)
- */
- .dc.b 0x26,0x67,0x66,0x89,0x4f,0xfc
-
- /* %edi += entry_size, store as mbs_mmap_length */
- add %ecx, %edi
- movw %di, %fs:0x2c
-
- /* Continuation value 0 means last entry */
- test %ebx, %ebx
- jnz mmap_loop
-
-mmap_done:
- /* Calculate upper_mem field: The amount of memory between 1 MB and
- the first upper memory hole. Get it from the mmap. */
- xor %di, %di
- mov $0x100000, %edx
-upper_mem_entry:
- cmp %fs:0x2c, %di
- je upper_mem_done
- add $4, %di
-
- /* Skip if type != 1 */
- cmpl $1, %es:16(%di)
- jne upper_mem_next
-
- /* Skip if > 4 GB */
- movl %es:4(%di), %eax
- test %eax, %eax
- jnz upper_mem_next
-
- /* Check for contiguous extension (base <= %edx < base + length) */
- movl %es:(%di), %eax
- cmp %eax, %edx
- jb upper_mem_next
- addl %es:8(%di), %eax
- cmp %eax, %edx
- jae upper_mem_next
-
- /* If so, update %edx, and restart the search (mmap isn't ordered) */
- mov %eax, %edx
- xor %di, %di
- jmp upper_mem_entry
-
-upper_mem_next:
- addl %es:-4(%di), %edi
- jmp upper_mem_entry
-
-upper_mem_done:
- sub $0x100000, %edx
- shr $10, %edx
- mov %edx, %fs:0x8
-
-real_to_prot:
- /* Load the GDT before going into protected mode */
-lgdt:
- data32 lgdt %gs:GS_GDT_DESC
-
- /* get us to protected mode now */
- movl $1, %eax
- movl %eax, %cr0
-
- /* the LJMP sets CS for us and gets us to 32-bit */
-ljmp:
- data32 ljmp *%gs:GS_PROT_JUMP
-
-prot_mode:
-.code32
-
- /* initialize all other segments */
- movl $0x10, %eax
- movl %eax, %ss
- movl %eax, %ds
- movl %eax, %es
- movl %eax, %fs
- movl %eax, %gs
-
- /* Read the kernel and modules into RAM */
- read_fw_blob_dma(FW_CFG_KERNEL)
-
- /* Jump off to the kernel */
- read_fw FW_CFG_KERNEL_ENTRY
- mov %eax, %ecx
-
- /* EBX contains a pointer to the bootinfo struct */
- read_fw FW_CFG_INITRD_ADDR
- movl %eax, %ebx
-
- /* EAX has to contain the magic */
- movl $MULTIBOOT_MAGIC, %eax
-ljmp2:
- jmp *%ecx
-
-/* Variables */
-.align 4, 0
-prot_jump: .long prot_mode
- .short 8
-
-.align 4, 0
-gdt:
- /* 0x00 */
-.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-
- /* 0x08: code segment (base=0, limit=0xfffff, type=32bit code
exec/read, DPL=0, 4k) */
-.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x9a, 0xcf, 0x00
-
- /* 0x10: data segment (base=0, limit=0xfffff, type=32bit data
read/write, DPL=0, 4k) */
-.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0xcf, 0x00
-
- /* 0x18: code segment (base=0, limit=0x0ffff, type=16bit code
exec/read/conf, DPL=0, 1b) */
-.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x9e, 0x00, 0x00
-
- /* 0x20: data segment (base=0, limit=0x0ffff, type=16bit data
read/write, DPL=0, 1b) */
-.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0x00, 0x00
-
-gdt_desc:
-.short (5 * 8) - 1
-.long gdt
-
-BOOT_ROM_END
diff --git a/pc-bios/optionrom/multiboot_dma.S
b/pc-bios/optionrom/multiboot_dma.S
index d809af3e23f..181a4b03a3f 100644
--- a/pc-bios/optionrom/multiboot_dma.S
+++ b/pc-bios/optionrom/multiboot_dma.S
@@ -1,2 +1,232 @@
-#define USE_FW_CFG_DMA 1
-#include "multiboot.S"
+/*
+ * Multiboot Option ROM
+ *
+ * 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
+ * (at your option) 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright Novell Inc, 2009
+ * Authors: Alexander Graf <ag...@suse.de>
+ */
+
+#include "optionrom.h"
+
+#define BOOT_ROM_PRODUCT "multiboot loader"
+
+#define MULTIBOOT_MAGIC 0x2badb002
+
+#define GS_PROT_JUMP 0
+#define GS_GDT_DESC 6
+
+
+BOOT_ROM_START
+
+run_multiboot:
+
+ cli
+ cld
+
+ mov %cs, %eax
+ shl $0x4, %eax
+
+ /* set up a long jump descriptor that is PC relative */
+
+ /* move stack memory to %gs */
+ mov %ss, %ecx
+ shl $0x4, %ecx
+ mov %esp, %ebx
+ add %ebx, %ecx
+ sub $0x20, %ecx
+ sub $0x30, %esp
+ shr $0x4, %ecx
+ mov %cx, %gs
+
+ /* now push the indirect jump descriptor there */
+ mov (prot_jump), %ebx
+ add %eax, %ebx
+ movl %ebx, %gs:GS_PROT_JUMP
+ mov $8, %bx
+ movw %bx, %gs:GS_PROT_JUMP + 4
+
+ /* fix the gdt descriptor to be PC relative */
+ movw (gdt_desc), %bx
+ movw %bx, %gs:GS_GDT_DESC
+ movl (gdt_desc+2), %ebx
+ add %eax, %ebx
+ movl %ebx, %gs:GS_GDT_DESC + 2
+
+ xor %eax, %eax
+ mov %eax, %es
+
+ /* Read the bootinfo struct into RAM */
+ read_fw_blob_dma(FW_CFG_INITRD)
+
+ /* FS = bootinfo_struct */
+ read_fw FW_CFG_INITRD_ADDR
+ shr $4, %eax
+ mov %ax, %fs
+
+ /* Account for the EBDA in the multiboot structure's e801
+ * map.
+ */
+ int $0x12
+ cwtl
+ movl %eax, %fs:4
+
+ /* ES = mmap_addr */
+ mov %fs:48, %eax
+ shr $4, %eax
+ mov %ax, %es
+
+ /* Initialize multiboot mmap structs using int 0x15(e820) */
+ xor %ebx, %ebx
+ /* Start storing mmap data at %es:0 */
+ xor %edi, %edi
+
+mmap_loop:
+ /* The multiboot entry size has offset -4, so leave some space */
+ add $4, %di
+ /* entry size (mmap struct) & max buffer size (int15) */
+ movl $20, %ecx
+ /* e820 */
+ movl $0x0000e820, %eax
+ /* 'SMAP' magic */
+ movl $0x534d4150, %edx
+ int $0x15
+
+mmap_check_entry:
+ /* Error or last entry already done? */
+ jb mmap_done
+
+mmap_store_entry:
+ /* store entry size */
+ /* old as(1) doesn't like this insn so emit the bytes instead:
+ movl %ecx, %es:-4(%edi)
+ */
+ .dc.b 0x26,0x67,0x66,0x89,0x4f,0xfc
+
+ /* %edi += entry_size, store as mbs_mmap_length */
+ add %ecx, %edi
+ movw %di, %fs:0x2c
+
+ /* Continuation value 0 means last entry */
+ test %ebx, %ebx
+ jnz mmap_loop
+
+mmap_done:
+ /* Calculate upper_mem field: The amount of memory between 1 MB and
+ the first upper memory hole. Get it from the mmap. */
+ xor %di, %di
+ mov $0x100000, %edx
+upper_mem_entry:
+ cmp %fs:0x2c, %di
+ je upper_mem_done
+ add $4, %di
+
+ /* Skip if type != 1 */
+ cmpl $1, %es:16(%di)
+ jne upper_mem_next
+
+ /* Skip if > 4 GB */
+ movl %es:4(%di), %eax
+ test %eax, %eax
+ jnz upper_mem_next
+
+ /* Check for contiguous extension (base <= %edx < base + length) */
+ movl %es:(%di), %eax
+ cmp %eax, %edx
+ jb upper_mem_next
+ addl %es:8(%di), %eax
+ cmp %eax, %edx
+ jae upper_mem_next
+
+ /* If so, update %edx, and restart the search (mmap isn't ordered) */
+ mov %eax, %edx
+ xor %di, %di
+ jmp upper_mem_entry
+
+upper_mem_next:
+ addl %es:-4(%di), %edi
+ jmp upper_mem_entry
+
+upper_mem_done:
+ sub $0x100000, %edx
+ shr $10, %edx
+ mov %edx, %fs:0x8
+
+real_to_prot:
+ /* Load the GDT before going into protected mode */
+lgdt:
+ data32 lgdt %gs:GS_GDT_DESC
+
+ /* get us to protected mode now */
+ movl $1, %eax
+ movl %eax, %cr0
+
+ /* the LJMP sets CS for us and gets us to 32-bit */
+ljmp:
+ data32 ljmp *%gs:GS_PROT_JUMP
+
+prot_mode:
+.code32
+
+ /* initialize all other segments */
+ movl $0x10, %eax
+ movl %eax, %ss
+ movl %eax, %ds
+ movl %eax, %es
+ movl %eax, %fs
+ movl %eax, %gs
+
+ /* Read the kernel and modules into RAM */
+ read_fw_blob_dma(FW_CFG_KERNEL)
+
+ /* Jump off to the kernel */
+ read_fw FW_CFG_KERNEL_ENTRY
+ mov %eax, %ecx
+
+ /* EBX contains a pointer to the bootinfo struct */
+ read_fw FW_CFG_INITRD_ADDR
+ movl %eax, %ebx
+
+ /* EAX has to contain the magic */
+ movl $MULTIBOOT_MAGIC, %eax
+ljmp2:
+ jmp *%ecx
+
+/* Variables */
+.align 4, 0
+prot_jump: .long prot_mode
+ .short 8
+
+.align 4, 0
+gdt:
+ /* 0x00 */
+.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+
+ /* 0x08: code segment (base=0, limit=0xfffff, type=32bit code
exec/read, DPL=0, 4k) */
+.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x9a, 0xcf, 0x00
+
+ /* 0x10: data segment (base=0, limit=0xfffff, type=32bit data
read/write, DPL=0, 4k) */
+.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0xcf, 0x00
+
+ /* 0x18: code segment (base=0, limit=0x0ffff, type=16bit code
exec/read/conf, DPL=0, 1b) */
+.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x9e, 0x00, 0x00
+
+ /* 0x20: data segment (base=0, limit=0x0ffff, type=16bit data
read/write, DPL=0, 1b) */
+.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0x00, 0x00
+
+gdt_desc:
+.short (5 * 8) - 1
+.long gdt
+
+BOOT_ROM_END
--
2.47.1
