[PATCH v2 1/3] bootm: fix flush_cache() with IH_TYPE_KERNEL_NOLOAD

Nora Schiffer nora.schiffer at ew.tq-group.com
Mon Jun 22 13:19:31 CEST 2026


`flush_start` must be set after `load` has been assigned.

Fixes: 69544c4fd8b1 ("bootm: Support kernel_noload with compression")
Signed-off-by: Nora Schiffer <nora.schiffer at ew.tq-group.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---

v2:
- Rebased onto next
- Collected Reviewed-by

Patch 2/4 from v1 has been dropped, as an alternative solution has been
merged. Whether CONFIG_SYS_BOOTM_LEN should be used for the allocation
size is undecided.


 boot/bootm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/boot/bootm.c b/boot/bootm.c
index 4c260a5f5ce..7c9a6f82976 100644
--- a/boot/bootm.c
+++ b/boot/bootm.c
@@ -618,7 +618,7 @@ static int bootm_load_os(struct bootm_headers *images, int boot_progress)
 	ulong image_start = os.image_start;
 	ulong image_len = os.image_len;
 	ulong decomp_len = CONFIG_SYS_BOOTM_LEN;
-	ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
+	ulong flush_start;
 	bool no_overlap;
 	void *load_buf, *image_buf;
 	int err;
@@ -663,6 +663,7 @@ static int bootm_load_os(struct bootm_headers *images, int boot_progress)
 	/* We need the decompressed image size in the next steps */
 	images->os.image_len = load_end - load;
 
+	flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
 	flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start);
 
 	debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end);
-- 
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