diff options
| -rw-r--r-- | src/include/payload_loader.h | 6 | ||||
| -rw-r--r-- | src/lib/selfboot.c | 26 |
2 files changed, 19 insertions, 13 deletions
diff --git a/src/include/payload_loader.h b/src/include/payload_loader.h index 3dde2f7626..73b28bff8f 100644 --- a/src/include/payload_loader.h +++ b/src/include/payload_loader.h @@ -22,14 +22,16 @@ #include <stdint.h> #include <stddef.h> -struct payload_backing_store { +struct buffer_area { void *data; size_t size; }; struct payload { const char *name; - struct payload_backing_store backing_store; + struct buffer_area backing_store; + /* Used when payload wants memory coreboot ramstage is running at. */ + struct buffer_area bounce; void *entry; }; diff --git a/src/lib/selfboot.c b/src/lib/selfboot.c index bd1206f259..ba0748039e 100644 --- a/src/lib/selfboot.c +++ b/src/lib/selfboot.c @@ -74,22 +74,22 @@ struct segment { static unsigned long bounce_size, bounce_buffer; -#if CONFIG_RELOCATABLE_RAMSTAGE -static void get_bounce_buffer(struct lb_memory *mem, unsigned long req_size) -{ - /* When the ramstage is relocatable there is no need for a bounce - * buffer. All payloads should not overlap the ramstage. - */ - bounce_buffer = ~0UL; - bounce_size = 0; -} -#else static void get_bounce_buffer(struct lb_memory *mem, unsigned long req_size) { unsigned long lb_size; unsigned long mem_entries; unsigned long buffer; int i; + + /* When the ramstage is relocatable there is no need for a bounce + * buffer. All payloads should not overlap the ramstage. + */ + if (IS_ENABLED(CONFIG_RELOCATABLE_RAMSTAGE)) { + bounce_buffer = ~0UL; + bounce_size = 0; + return; + } + lb_size = lb_end - lb_start; /* Plus coreboot size so I have somewhere * to place a copy to return to. @@ -120,7 +120,6 @@ static void get_bounce_buffer(struct lb_memory *mem, unsigned long req_size) bounce_buffer = buffer; bounce_size = req_size; } -#endif /* CONFIG_RELOCATABLE_RAMSTAGE */ static int valid_area(struct lb_memory *mem, unsigned long buffer, unsigned long start, unsigned long len) @@ -417,6 +416,11 @@ static int load_self_segments( printk(BIOS_ERR, "Could not find a bounce buffer...\n"); return 0; } + + /* Update the payload's bounce buffer data used when loading. */ + payload->bounce.data = (void *)(uintptr_t)bounce_buffer; + payload->bounce.size = bounce_size; + for(ptr = head->next; ptr != head; ptr = ptr->next) { /* Verify the memory addresses in the segment are valid */ if (!valid_area(mem, bounce_buffer, ptr->s_dstaddr, ptr->s_memsz)) |