diff options
Diffstat (limited to 'purgatory/arch/ia64/purgatory-ia64.c')
| -rw-r--r-- | purgatory/arch/ia64/purgatory-ia64.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/purgatory/arch/ia64/purgatory-ia64.c b/purgatory/arch/ia64/purgatory-ia64.c index 369e175..8d2008c 100644 --- a/purgatory/arch/ia64/purgatory-ia64.c +++ b/purgatory/arch/ia64/purgatory-ia64.c @@ -1,10 +1,116 @@ #include <purgatory.h> +#include <stdint.h> +#include <string.h> #include "purgatory-ia64.h" +#define PAGE_OFFSET 0xe000000000000000 + +typedef struct { + uint64_t signature; + uint32_t revision; + uint32_t headersize; + uint32_t crc32; + uint32_t reserved; +} efi_table_hdr_t; + +typedef struct { + efi_table_hdr_t hdr; + unsigned long get_time; + unsigned long set_time; + unsigned long get_wakeup_time; + unsigned long set_wakeup_time; + unsigned long set_virtual_address_map; + unsigned long convert_pointer; + unsigned long get_variable; + unsigned long get_next_variable; + unsigned long set_variable; + unsigned long get_next_high_mono_count; + unsigned long reset_system; +} efi_runtime_services_t; + +typedef struct { + efi_table_hdr_t hdr; + unsigned long fw_vendor; /* physical addr of CHAR16 vendor string + */ + uint32_t fw_revision; + unsigned long con_in_handle; + unsigned long con_in; + unsigned long con_out_handle; + unsigned long con_out; + unsigned long stderr_handle; + unsigned long stderr; + unsigned long runtime; + unsigned long boottime; + unsigned long nr_tables; + unsigned long tables; +} efi_system_table_t; + +struct ia64_boot_param { + uint64_t command_line; /* physical address of command line arguments */ + uint64_t efi_systab; /* physical address of EFI system table */ + uint64_t efi_memmap; /* physical address of EFI memory map */ + uint64_t efi_memmap_size; /* size of EFI memory map */ + uint64_t efi_memdesc_size; /* size of an EFI memory map descriptor */ + uint32_t efi_memdesc_version; /* memory descriptor version */ + struct { + uint16_t num_cols; /* number of columns on console output device */ + uint16_t num_rows; /* number of rows on console output device */ + uint16_t orig_x; /* cursor's x position */ + uint16_t orig_y; /* cursor's y position */ + } console_info; + uint64_t fpswa; /* physical address of the fpswa interface */ + uint64_t initrd_start; + uint64_t initrd_size; +}; + void setup_arch(void) { /* Nothing for now */ } +inline unsigned long PA(unsigned long addr) +{ + return addr - PAGE_OFFSET; +} + +void flush_icache_range(char *start, unsigned long len) +{ + unsigned long i; + for (i = 0;i < len; i += 32) + asm volatile("fc.i %0"::"r"(start+i):"memory"); + asm volatile (";;sync.i;;":::"memory"); + asm volatile ("srlz.i":::"memory"); +} + +extern char __dummy_efi_function[], __dummy_efi_function_end[]; + +void ia64_env_setup(struct ia64_boot_param *boot_param, + uint64_t command_line, uint64_t command_line_len, + uint64_t ramdisk_base, uint64_t ramdisk_size) +{ + unsigned long len; + efi_system_table_t *systab; + efi_runtime_services_t *runtime; + unsigned long *set_virtual_address_map; + + // patch efi_runtime->set_virtual_address_map to a + // dummy function + len = __dummy_efi_function_end - __dummy_efi_function; + memcpy((char *)command_line + command_line_len, __dummy_efi_function, + len); + systab = (efi_system_table_t *)boot_param->efi_systab; + runtime = (efi_runtime_services_t *)PA(systab->runtime); + set_virtual_address_map = + (unsigned long *)PA(runtime->set_virtual_address_map); + *(set_virtual_address_map)= + (unsigned long)((char *)command_line + command_line_len); + flush_icache_range((char *)command_line+command_line_len, len); + + boot_param->command_line = command_line; + boot_param->console_info.orig_x = 0; + boot_param->console_info.orig_y = 0; + boot_param->initrd_start = ramdisk_base; + boot_param->initrd_size = ramdisk_size; +} /* This function can be used to execute after the SHA256 verification. */ void post_verification_setup_arch(void) |