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authorRandolph Sapp <[email protected]>2026-06-04 10:50:38 -0500
committerTom Rini <[email protected]>2026-06-15 11:04:39 -0600
commit48412f8f2962e27abe3b9a4a73221cebbfd73333 (patch)
tree56704e6bbe3de3000f235237efb99f6d69cb0ef2 /lib
parentde12fa4df89277460aacaea7c9a43421190ee04d (diff)
memory: reserve from start_addr_sp to initial_relocaddr
Add a new global data struct member called initial_relocaddr. This stores the original value of relocaddr, directly from setup_dest_addr. This is specifically to avoid any adjustments made by other init functions. Reserve the memory from gd->start_addr_sp - CONFIG_STACK_SIZE to gd->initial_relocaddr instead of gd->ram_top. This allows platform specific relocation addresses to work without unnecessarily painting over a large range. Signed-off-by: Randolph Sapp <[email protected]> Reviewed-by: Simon Glass <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
Diffstat (limited to 'lib')
-rw-r--r--lib/efi_loader/efi_memory.c2
-rw-r--r--lib/lmb.c7
2 files changed, 5 insertions, 4 deletions
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index 2feb29f0a2c..c3da7c20cb2 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -871,7 +871,7 @@ static void add_u_boot_and_runtime(void)
/* Add U-Boot */
uboot_start = ((uintptr_t)map_sysmem(gd->start_addr_sp, 0) -
uboot_stack_size) & ~EFI_PAGE_MASK;
- uboot_pages = ((uintptr_t)map_sysmem(gd->ram_top - 1, 0) -
+ uboot_pages = ((uintptr_t)map_sysmem(gd->initial_relocaddr - 1, 0) -
uboot_start + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
efi_update_memory_map(uboot_start, uboot_pages, EFI_BOOT_SERVICES_CODE,
false, false);
diff --git a/lib/lmb.c b/lib/lmb.c
index 8f12c6ad8e5..27c8565e590 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -540,13 +540,14 @@ static void lmb_reserve_uboot_region(void)
ulong pram = 0;
rsv_start = gd->start_addr_sp - CONFIG_STACK_SIZE;
- end = gd->ram_top;
+ end = gd->initial_relocaddr;
/*
* Reserve memory from aligned address below the bottom of U-Boot stack
- * until end of RAM area to prevent LMB from overwriting that memory.
+ * until the original relocation address to prevent LMB from
+ * overwriting that memory.
*/
- debug("## Current stack ends at 0x%08lx ", (ulong)rsv_start);
+ debug("## Current stack ends at 0x%08lx\n", (ulong)rsv_start);
#ifdef CFG_PRAM
pram = env_get_ulong("pram", 10, CFG_PRAM);