diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/boot/coreboot_tables.h | 8 | ||||
| -rw-r--r-- | src/include/cpu/x86/mtrr.h | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/src/include/boot/coreboot_tables.h b/src/include/boot/coreboot_tables.h index f624ac1e1a..a7e4ab0500 100644 --- a/src/include/boot/coreboot_tables.h +++ b/src/include/boot/coreboot_tables.h @@ -250,6 +250,14 @@ struct lb_vboot_handoff { uint32_t vboot_handoff_size; }; +#define LB_TAG_X86_ROM_MTRR 0x0021 +struct lb_x86_rom_mtrr { + uint32_t tag; + uint32_t size; + /* The variable range MTRR index covering the ROM. */ + uint32_t index; +}; + /* The following structures are for the cmos definitions table */ #define LB_TAG_CMOS_OPTION_TABLE 200 /* cmos header record */ diff --git a/src/include/cpu/x86/mtrr.h b/src/include/cpu/x86/mtrr.h index bff736d296..15a5cad090 100644 --- a/src/include/cpu/x86/mtrr.h +++ b/src/include/cpu/x86/mtrr.h @@ -78,9 +78,12 @@ int x86_mtrr_check(void); #if CONFIG_CACHE_ROM void x86_mtrr_enable_rom_caching(void); void x86_mtrr_disable_rom_caching(void); +/* Return the variable range MTRR index of the ROM cache. */ +long x86_mtrr_rom_cache_var_index(void); #else static inline void x86_mtrr_enable_rom_caching(void) {} static inline void x86_mtrr_disable_rom_caching(void) {} +static inline long x86_mtrr_rom_cache_var_index(void) { return -1; } #endif /* CONFIG_CACHE_ROM */ #endif |