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 --- common/Kconfig | 7 +++++++ common/bloblist.c | 5 ++++- 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/common/Kconfig b/common/Kconfig index 9e89ccd390..11066ec643 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -1056,6 +1056,12 @@ 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 @@ -1070,6 +1076,7 @@ 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 diff --git a/common/bloblist.c b/common/bloblist.c index ec6ff7a5a9..db0091dc0e 100644 --- a/common/bloblist.c +++ b/common/bloblist.c @@ -475,6 +475,9 @@ int bloblist_reloc(void *to, uint to_size) { struct bloblist_hdr *hdr;

+ if (to_size == 0) + return 0; + if (to_size < gd->bloblist->total_size) return -ENOSPC;

@@ -510,7 +513,7 @@ int bloblist_init(void) * install the bloblist passed from previous loader to this fixed * address. */ - bool from_boot_arg = fixed && xpl_is_first_phase(); + bool from_boot_arg = xpl_is_first_phase();

if (xpl_prev_phase() == PHASE_TPL && !IS_ENABLED(CONFIG_TPL_BLOBLIST)) from_addr = false; -- 2.46.2