diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2018-06-08 20:19:21 +0300 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-06-12 07:43:37 +0000 |
| commit | d022718001a7651d9d357a1a3359d07c13a0ad9d (patch) | |
| tree | cc5447213109929e02f29f08f177b5957c7e5bd6 /src/include | |
| parent | 43fc1aee4d8c4b9198a9b41cc5bc2a8a2663ef29 (diff) | |
| download | coreboot-d022718001a7651d9d357a1a3359d07c13a0ad9d.tar.xz | |
bootmem: Clarify usage with bounce-buffer
Add bootmem_targets_usable_with_bounce() to handle
cases of payload loading via bounce-buffer.
Change-Id: I9ebbc621f8810c0317d7c97c6b4cdd41527ddcbb
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26985
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/bootmem.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/include/bootmem.h b/src/include/bootmem.h index 0a960c992a..28bc95bae8 100644 --- a/src/include/bootmem.h +++ b/src/include/bootmem.h @@ -97,6 +97,11 @@ bool bootmem_walk(range_action_t action, void *arg); /* Return 1 if region targets usable RAM, 0 otherwise. */ int bootmem_region_targets_usable_ram(uint64_t start, uint64_t size); +/* Return 1 if region targets usable RAM, and we allow memory ranges + * with type >BM_MEM_OS_CUTOFF to be overwritten at the time we jump + * to payload. 0 otherwise. */ +int bootmem_region_usable_with_bounce(uint64_t start, uint64_t size); + /* Allocate a temporary buffer from the unused RAM areas. */ void *bootmem_allocate_buffer(size_t size); |