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| author | Julius Werner <jwerner@chromium.org> | 2019-12-11 17:09:39 -0800 |
|---|---|---|
| committer | Philipp Deppenwiese <zaolin.daisuki@gmail.com> | 2020-11-21 10:43:53 +0000 |
| commit | 1e37c9ca465a14d55adeacb332354771543437b5 (patch) | |
| tree | 6b38606a32261cb99a4518b925278e97c8f120a6 /src/lib/coreboot_table.c | |
| parent | 7d11513ab3281ef3bee83b4b523219b683d3ddc1 (diff) | |
| download | coreboot-1e37c9ca465a14d55adeacb332354771543437b5.tar.gz coreboot-1e37c9ca465a14d55adeacb332354771543437b5.tar.bz2 coreboot-1e37c9ca465a14d55adeacb332354771543437b5.zip | |
cbfs: Add metadata cache
This patch adds a new CBFS "mcache" (metadata cache) -- a memory buffer
that stores the headers of all CBFS files. Similar to the existing FMAP
cache, this cache should reduce the amount of SPI accesses we need to do
every boot: rather than having to re-read all CBFS headers from SPI
flash every time we're looking for a file, we can just walk the same
list in this in-memory copy and finally use it to directly access the
flash at the right position for the file data.
This patch adds the code to support the cache but doesn't enable it on
any platform. The next one will turn it on by default.
Change-Id: I5b1084bfdad1c6ab0ee1b143ed8dd796827f4c65
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38423
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/lib/coreboot_table.c')
| -rw-r--r-- | src/lib/coreboot_table.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/src/lib/coreboot_table.c b/src/lib/coreboot_table.c index 69ded3c70091..4cbf3c742e27 100644 --- a/src/lib/coreboot_table.c +++ b/src/lib/coreboot_table.c @@ -220,11 +220,8 @@ static void lb_boot_media_params(struct lb_header *header) { struct lb_boot_media_params *bmp; const struct region_device *boot_dev; - struct region_device cbfs_dev; - - boot_device_init(); - - if (cbfs_boot_region_device(&cbfs_dev)) + const struct cbfs_boot_device *cbd = cbfs_get_boot_device(false); + if (!cbd) return; boot_dev = boot_device_ro(); @@ -235,8 +232,8 @@ static void lb_boot_media_params(struct lb_header *header) bmp->tag = LB_TAG_BOOT_MEDIA_PARAMS; bmp->size = sizeof(*bmp); - bmp->cbfs_offset = region_device_offset(&cbfs_dev); - bmp->cbfs_size = region_device_sz(&cbfs_dev); + bmp->cbfs_offset = region_device_offset(&cbd->rdev); + bmp->cbfs_size = region_device_sz(&cbd->rdev); bmp->boot_media_size = region_device_sz(boot_dev); bmp->fmap_offset = get_fmap_flash_offset(); |