smallsolar/u-boot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

bloblist: add support for CONFIG_BLOBLIST_PASSAGE

Browse Source 
When the configuration option CONFIG_BLOBLIST_PASSAGE is selected, the
bloblist present in the incoming standard passage is utilised in-place.
There is no need to specify the size of the bloblist as the system
automatically detects it using the header information.

Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
This commit is contained in:
Harrison Mutai
2025-02-04 17:58:41 +00:00
committed by Simon Glass
parent 62ba2d48dd
commit 1c56f6babc
2 changed files with 17 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
common/Kconfig
View File

@@ -1066,6 +1066,12 @@ config BLOBLIST_ALLOC
specify a fixed address on systems where this is unknown or can
change at runtime.
config BLOBLIST_PASSAGE
bool "Use bloblist in-place"
help
Use a bloblist in the incoming standard passage. The size is detected
automatically so CONFIG_BLOBLIST_SIZE can be 0.
endchoice
config BLOBLIST_ADDR
@@ -1080,6 +1086,7 @@ config BLOBLIST_ADDR
config BLOBLIST_SIZE
hex "Size of bloblist"
default 0x0 if BLOBLIST_PASSAGE
default 0x400
help
Sets the size of the bloblist in bytes. This must include all
@@ -1090,7 +1097,6 @@ config BLOBLIST_SIZE
config BLOBLIST_SIZE_RELOC
hex "Size of bloblist after relocation"
default BLOBLIST_SIZE if BLOBLIST_FIXED || BLOBLIST_ALLOC
default 0x0 if BLOBLIST_PASSAGE
default 0x20000 if (ARM && EFI_LOADER && GENERATE_ACPI_TABLE)
help
Sets the size of the bloblist in bytes after relocation. Since U-Boot

18
common/bloblist.c
View File

@@ -489,6 +489,9 @@ int bloblist_reloc(void *to, uint to_size)
{
struct bloblist_hdr *hdr;
if (!to_size)
return 0;
if (to_size < gd->bloblist->total_size)
return -ENOSPC;
@@ -519,13 +522,6 @@ int bloblist_init(void)
* at a fixed address.
*/
bool from_addr = fixed && !xpl_is_first_phase();
/*
* If U-Boot is in the first phase that an arch custom routine should
* install the bloblist passed from previous loader to this fixed
* address.
*/
bool from_boot_arg = fixed && xpl_is_first_phase();
if (xpl_prev_phase() == PHASE_TPL && !IS_ENABLED(CONFIG_TPL_BLOBLIST))
from_addr = false;
if (fixed)
@@ -533,7 +529,13 @@ int bloblist_init(void)
CONFIG_BLOBLIST_ADDR);
size = CONFIG_BLOBLIST_SIZE;
if (from_boot_arg)
/*
* If the current boot stage is the first phase of U-Boot, then an
* architecture-specific routine should be used to handle the bloblist
* passed from the previous boot loader
*/
if (xpl_is_first_phase() && !IS_ENABLED(CONFIG_BLOBLIST_ALLOC))
ret = xferlist_from_boot_arg(addr, size);
else if (from_addr)
ret = bloblist_check(addr, size);