diff options
| author | Nico Huber <nico.h@gmx.de> | 2018-05-27 14:32:27 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-06-04 08:20:35 +0000 |
| commit | 36ec3e9ba1b89416d87426eabe496d67dbb2cdbf (patch) | |
| tree | d0a982f07df42bb3115e46e211a847ae9a78fac0 /src | |
| parent | b5211ef2e7da1c1b8f8bb0208e7b2f44aa859ef7 (diff) | |
arch/x86: Introduce postcar_frame_add_romcache()
Provide a common implementation to add an MTRR entry for memory-
mapped boot ROMs.
Change-Id: I9fabc6b87fb36dc3d970805eb804cd950b8849d4
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/26577
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86/include/arch/cpu.h | 5 | ||||
| -rw-r--r-- | src/arch/x86/postcar_loader.c | 7 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h index 5d44aaeb6c..5f11c9dc0c 100644 --- a/src/arch/x86/include/arch/cpu.h +++ b/src/arch/x86/include/arch/cpu.h @@ -283,6 +283,11 @@ void postcar_frame_add_mtrr(struct postcar_frame *pcf, uintptr_t addr, size_t size, int type); /* + * Add variable MTRR covering the memory-mapped ROM with given MTRR type. + */ +void postcar_frame_add_romcache(struct postcar_frame *pcf, int type); + +/* * Push used MTRR and Max MTRRs on to the stack * and return pointer to stack top. */ diff --git a/src/arch/x86/postcar_loader.c b/src/arch/x86/postcar_loader.c index 11f048de7a..1877108ed0 100644 --- a/src/arch/x86/postcar_loader.c +++ b/src/arch/x86/postcar_loader.c @@ -113,6 +113,13 @@ void postcar_frame_add_mtrr(struct postcar_frame *pcf, } } +void postcar_frame_add_romcache(struct postcar_frame *pcf, int type) +{ + if (!IS_ENABLED(CONFIG_BOOT_DEVICE_MEMORY_MAPPED)) + return; + postcar_frame_add_mtrr(pcf, CACHE_ROM_BASE, CACHE_ROM_SIZE, type); +} + void *postcar_commit_mtrrs(struct postcar_frame *pcf) { /* |