diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/bios.h | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/include/bios.h b/include/bios.h index 12087f2..3e4cdee 100644 --- a/include/bios.h +++ b/include/bios.h @@ -25,18 +25,43 @@ struct biosregs { uint32_t ds; uint32_t es; uint32_t fs; - uint32_t eip; + uint16_t ip; + uint16_t cs; + uint16_t eflags; +} __attribute__((packed)); + +/* + * BIOS32 is called via a far call, so eflags is pushed by our + * entry point and lies below CS:EIP. We do not include CS:EIP + * at all in this struct. + */ +struct bios32regs { + uint32_t eax; + uint32_t ebx; + uint32_t ecx; + uint32_t edx; + uint32_t esp; + uint32_t ebp; + uint32_t esi; + uint32_t edi; + uint32_t ds; + uint32_t es; + uint32_t fs; uint32_t eflags; -}; +} __attribute__((packed)); extern bioscall void int10_handler(struct biosregs *regs); extern bioscall void int15_handler(struct biosregs *regs); extern bioscall void e820_query_map(struct biosregs *regs); +extern bioscall void pcibios_handler(struct bios32regs *regs); extern void bios_intfake(void); extern void bios_irq(void); extern void bios_int10(void); extern void bios_int15(void); +extern void bios32_entry(void); + +extern uint32_t pic_base(void); extern void setup_pci(void); extern void setup_hw(void); @@ -44,6 +69,7 @@ extern bool setup_mmconfig(void); extern void extract_acpi(void); extern void boot_from_fwcfg(void); +extern uint8_t max_bus; extern uint16_t e820_seg; extern uint32_t lowmem; |