bloblist: Support allocating the bloblist
Typically the bloblist is positioned at a fixed address in memory until
relocation. This is convenient when it is set up in SPL or before
relocation.
But for EFI we want to set it up only when U-Boot proper is running. Add
a way to allocate it using malloc() and update the documentation to cover
this aspect of bloblist.
Note there are no tests of this feature at present, nor any direct testing
of bloblist_init().
This can be added, e.g. by making this option controllable at runtime.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/Kconfig b/common/Kconfig
index 176fda9..50ac433 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -727,6 +727,8 @@
This enables a bloblist in TPL. The bloblist is set up in TPL and
passed to SPL and U-Boot proper.
+if BLOBLIST
+
config BLOBLIST_SIZE
hex "Size of bloblist"
depends on BLOBLIST
@@ -737,17 +739,24 @@
is set up in the first part of U-Boot to run (TPL, SPL or U-Boot
proper), and this sane bloblist is used for subsequent stages.
+config BLOBLIST_ALLOC
+ bool "Allocate bloblist"
+ help
+ Allocate the bloblist using malloc(). This avoids the need to
+ specify a fixed address on systems where this is unknown or can
+ change at runtime.
+
config BLOBLIST_ADDR
hex "Address of bloblist"
- depends on BLOBLIST
default 0xc000 if SANDBOX
help
Sets the address of the bloblist, set up by the first part of U-Boot
which runs. Subsequent U-Boot stages typically use the same address.
+ This is not used if BLOBLIST_ALLOC is selected.
+
config BLOBLIST_SIZE_RELOC
hex "Size of bloblist after relocation"
- depends on BLOBLIST
default BLOBLIST_SIZE
help
Sets the size of the bloblist in bytes after relocation. Since U-Boot
@@ -755,6 +764,8 @@
size than the one set up by SPL. This bloblist is set up during the
relocation process.
+endif # BLOBLIST
+
endmenu
source "common/spl/Kconfig"