diff options
Diffstat (limited to 'pc-bios/optionrom/optionrom.h')
| -rw-r--r-- | pc-bios/optionrom/optionrom.h | 262 |
1 files changed, 131 insertions, 131 deletions
diff --git a/pc-bios/optionrom/optionrom.h b/pc-bios/optionrom/optionrom.h index 8d74c0ddf3..7bcdf0eeb2 100644 --- a/pc-bios/optionrom/optionrom.h +++ b/pc-bios/optionrom/optionrom.h @@ -34,8 +34,8 @@ #define FW_CFG_SETUP_SIZE 0x17 #define FW_CFG_SETUP_DATA 0x18 -#define BIOS_CFG_IOPORT_CFG 0x510 -#define BIOS_CFG_IOPORT_DATA 0x511 +#define BIOS_CFG_IOPORT_CFG 0x510 +#define BIOS_CFG_IOPORT_DATA 0x511 #define FW_CFG_DMA_CTL_ERROR 0x01 #define FW_CFG_DMA_CTL_READ 0x02 @@ -49,65 +49,65 @@ #define BIOS_CFG_DMA_ADDR_LOW 0x518 /* Break the translation block flow so -d cpu shows us values */ -#define DEBUG_HERE \ - jmp 1f; \ - 1: - +#define DEBUG_HERE \ + jmp 1f; \ + 1: + /* * Read a variable from the fw_cfg device. - * Clobbers: %edx - * Out: %eax + * Clobbers: %edx + * Out: %eax */ .macro read_fw VAR - mov $\VAR, %ax - mov $BIOS_CFG_IOPORT_CFG, %dx - outw %ax, (%dx) - mov $BIOS_CFG_IOPORT_DATA, %dx - inb (%dx), %al - shl $8, %eax - inb (%dx), %al - shl $8, %eax - inb (%dx), %al - shl $8, %eax - inb (%dx), %al - bswap %eax + mov $\VAR, %ax + mov $BIOS_CFG_IOPORT_CFG, %dx + outw %ax, (%dx) + mov $BIOS_CFG_IOPORT_DATA, %dx + inb (%dx), %al + shl $8, %eax + inb (%dx), %al + shl $8, %eax + inb (%dx), %al + shl $8, %eax + inb (%dx), %al + bswap %eax .endm /* * Read data from the fw_cfg device using DMA. - * Clobbers: %edx, %eax, ADDR, SIZE, memory[%esp-16] to memory[%esp] + * Clobbers: %edx, %eax, ADDR, SIZE, memory[%esp-16] to memory[%esp] */ .macro read_fw_dma VAR, SIZE, ADDR /* Address */ - bswapl \ADDR - pushl \ADDR + bswapl \ADDR + pushl \ADDR - /* We only support 32 bit target addresses */ - xorl %eax, %eax - pushl %eax - mov $BIOS_CFG_DMA_ADDR_HIGH, %dx - outl %eax, (%dx) + /* We only support 32 bit target addresses */ + xorl %eax, %eax + pushl %eax + mov $BIOS_CFG_DMA_ADDR_HIGH, %dx + outl %eax, (%dx) - /* Size */ - bswapl \SIZE - pushl \SIZE + /* Size */ + bswapl \SIZE + pushl \SIZE /* Control */ - movl $(\VAR << 16) | (FW_CFG_DMA_CTL_READ | FW_CFG_DMA_CTL_SELECT), %eax - bswapl %eax - pushl %eax - - movl %esp, %eax /* Address of the struct we generated */ - bswapl %eax - mov $BIOS_CFG_DMA_ADDR_LOW, %dx - outl %eax, (%dx) /* Initiate DMA */ - -1: mov (%esp), %eax /* Wait for completion */ - bswapl %eax - testl $~FW_CFG_DMA_CTL_ERROR, %eax - jnz 1b - addl $16, %esp + movl $(\VAR << 16) | (FW_CFG_DMA_CTL_READ | FW_CFG_DMA_CTL_SELECT), %eax + bswapl %eax + pushl %eax + + movl %esp, %eax /* Address of the struct we generated */ + bswapl %eax + mov $BIOS_CFG_DMA_ADDR_LOW, %dx + outl %eax, (%dx) /* Initiate DMA */ + +1: mov (%esp), %eax /* Wait for completion */ + bswapl %eax + testl $~FW_CFG_DMA_CTL_ERROR, %eax + jnz 1b + addl $16, %esp .endm @@ -115,116 +115,116 @@ * Read a blob from the fw_cfg device using DMA * Requires _ADDR, _SIZE and _DATA values for the parameter. * - * Clobbers: %eax, %edx, %es, %ecx, %edi and adresses %esp-20 to %esp + * 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 +#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; \ - mov %eax, %ecx; \ - mov $var ## _DATA, %ax; \ - mov $BIOS_CFG_IOPORT_CFG, %edx; \ - outw %ax, (%dx); \ - mov $BIOS_CFG_IOPORT_DATA, %dx; \ - cld +#define read_fw_blob_pre(var) \ + read_fw var ## _SIZE; \ + mov %eax, %ecx; \ + mov $var ## _DATA, %ax; \ + mov $BIOS_CFG_IOPORT_CFG, %edx; \ + outw %ax, (%dx); \ + mov $BIOS_CFG_IOPORT_DATA, %dx; \ + cld /* * Read a blob from the fw_cfg device. * Requires _ADDR, _SIZE and _DATA values for the parameter. * - * Clobbers: %eax, %edx, %es, %ecx, %edi + * Clobbers: %eax, %edx, %es, %ecx, %edi */ -#define read_fw_blob(var) \ - read_fw var ## _ADDR; \ - mov %eax, %edi; \ - read_fw_blob_pre(var); \ - /* old as(1) doesn't like this insn so emit the bytes instead: \ - rep insb (%dx), %es:(%edi); \ - */ \ - .dc.b 0xf3,0x6c +#define read_fw_blob(var) \ + read_fw var ## _ADDR; \ + mov %eax, %edi; \ + read_fw_blob_pre(var); \ + /* old as(1) doesn't like this insn so emit the bytes instead: \ + rep insb (%dx), %es:(%edi); \ + */ \ + .dc.b 0xf3,0x6c /* * Read a blob from the fw_cfg device in forced addr32 mode. * Requires _ADDR, _SIZE and _DATA values for the parameter. * - * Clobbers: %eax, %edx, %es, %ecx, %edi + * Clobbers: %eax, %edx, %es, %ecx, %edi */ -#define read_fw_blob_addr32(var) \ - read_fw var ## _ADDR; \ - mov %eax, %edi; \ - read_fw_blob_pre(var); \ - /* old as(1) doesn't like this insn so emit the bytes instead: \ - addr32 rep insb (%dx), %es:(%edi); \ - */ \ - .dc.b 0x67,0xf3,0x6c +#define read_fw_blob_addr32(var) \ + read_fw var ## _ADDR; \ + mov %eax, %edi; \ + read_fw_blob_pre(var); \ + /* old as(1) doesn't like this insn so emit the bytes instead: \ + addr32 rep insb (%dx), %es:(%edi); \ + */ \ + .dc.b 0x67,0xf3,0x6c /* * Read a blob from the fw_cfg device in forced addr32 mode, address is in %edi. * Requires _SIZE and _DATA values for the parameter. * - * Clobbers: %eax, %edx, %edi, %es, %ecx + * Clobbers: %eax, %edx, %edi, %es, %ecx */ -#define read_fw_blob_addr32_edi(var) \ - read_fw_blob_pre(var); \ - /* old as(1) doesn't like this insn so emit the bytes instead: \ - addr32 rep insb (%dx), %es:(%edi); \ - */ \ - .dc.b 0x67,0xf3,0x6c - -#define OPTION_ROM_START \ - .code16; \ - .text; \ - .global _start; \ - _start:; \ - .short 0xaa55; \ - .byte (_end - _start) / 512; - -#define BOOT_ROM_START \ - OPTION_ROM_START \ - lret; \ - .org 0x18; \ - .short 0; \ - .short _pnph; \ - _pnph: \ - .ascii "$PnP"; \ - .byte 0x01; \ - .byte ( _pnph_len / 16 ); \ - .short 0x0000; \ - .byte 0x00; \ - .byte 0x00; \ - .long 0x00000000; \ - .short _manufacturer; \ - .short _product; \ - .long 0x00000000; \ - .short 0x0000; \ - .short 0x0000; \ - .short _bev; \ - .short 0x0000; \ - .short 0x0000; \ - .equ _pnph_len, . - _pnph; \ - _bev:; \ - /* DS = CS */ \ - movw %cs, %ax; \ - movw %ax, %ds; - -#define OPTION_ROM_END \ - .byte 0; \ - .align 512, 0; \ +#define read_fw_blob_addr32_edi(var) \ + read_fw_blob_pre(var); \ + /* old as(1) doesn't like this insn so emit the bytes instead: \ + addr32 rep insb (%dx), %es:(%edi); \ + */ \ + .dc.b 0x67,0xf3,0x6c + +#define OPTION_ROM_START \ + .code16; \ + .text; \ + .global _start; \ + _start:; \ + .short 0xaa55; \ + .byte (_end - _start) / 512; + +#define BOOT_ROM_START \ + OPTION_ROM_START \ + lret; \ + .org 0x18; \ + .short 0; \ + .short _pnph; \ + _pnph: \ + .ascii "$PnP"; \ + .byte 0x01; \ + .byte ( _pnph_len / 16 ); \ + .short 0x0000; \ + .byte 0x00; \ + .byte 0x00; \ + .long 0x00000000; \ + .short _manufacturer; \ + .short _product; \ + .long 0x00000000; \ + .short 0x0000; \ + .short 0x0000; \ + .short _bev; \ + .short 0x0000; \ + .short 0x0000; \ + .equ _pnph_len, . - _pnph; \ + _bev:; \ + /* DS = CS */ \ + movw %cs, %ax; \ + movw %ax, %ds; + +#define OPTION_ROM_END \ + .byte 0; \ + .align 512, 0; \ _end: -#define BOOT_ROM_END \ - _manufacturer:; \ - .asciz "QEMU"; \ - _product:; \ - .asciz BOOT_ROM_PRODUCT; \ - OPTION_ROM_END +#define BOOT_ROM_END \ + _manufacturer:; \ + .asciz "QEMU"; \ + _product:; \ + .asciz BOOT_ROM_PRODUCT; \ + OPTION_ROM_END |