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[u-boot-marvell,v3,3/9] arm: mvebu: Check that kwbimage blockid matches boot mode

Message ID 20211214132222.21324-4-kabel@kernel.org
State Changes Requested
Delegated to: Stefan Roese
Headers show
Series More verifications for kwbimage in SPL | expand

Commit Message

Marek Behún Dec. 14, 2021, 1:22 p.m. UTC 
From: Pali Rohár <pali@kernel.org>

Each boot mode has its own kwbimage specified by blockid. So check that
kwbimage is valid by blockid.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
---
 arch/arm/mach-mvebu/spl.c | 35 ++++++++++++++++++++++++++---------
 1 file changed, 26 insertions(+), 9 deletions(-)
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Patch

diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c
index 716217083b..4af52c626c 100644
--- a/arch/arm/mach-mvebu/spl.c
+++ b/arch/arm/mach-mvebu/spl.c
@@ -118,22 +118,39 @@  int spl_parse_board_header(struct spl_image_info *spl_image,
 	 * (including SPL content) which is not included in U-Boot image_header.
 	 */
 	if (mhdr->version != 1 ||
-	    ((mhdr->headersz_msb << 16) | mhdr->headersz_lsb) < sizeof(*mhdr) ||
-	    (
+	    ((mhdr->headersz_msb << 16) | mhdr->headersz_lsb) < sizeof(*mhdr)) {
+		printf("ERROR: Invalid kwbimage v1\n");
+		return -EINVAL;
+	}
+
 #ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
-	     mhdr->blockid != IBR_HDR_SPI_ID &&
+	if (bootdev->boot_device == BOOT_DEVICE_SPI &&
+	    mhdr->blockid != IBR_HDR_SPI_ID) {
+		printf("ERROR: Wrong blockid (%u) in SPI kwbimage\n",
+		       mhdr->blockid);
+		return -EINVAL;
+	}
 #endif
+
 #ifdef CONFIG_SPL_SATA
-	     mhdr->blockid != IBR_HDR_SATA_ID &&
+	if (bootdev->boot_device == BOOT_DEVICE_SATA &&
+	    mhdr->blockid != IBR_HDR_SATA_ID) {
+		printf("ERROR: Wrong blockid (%u) in SATA kwbimage\n",
+		       mhdr->blockid);
+		return -EINVAL;
+	}
 #endif
+
 #ifdef CONFIG_SPL_MMC
-	     mhdr->blockid != IBR_HDR_SDIO_ID &&
-#endif
-	     1
-	    )) {
-		printf("ERROR: Not valid SPI/NAND/SATA/SDIO kwbimage v1\n");
+	if ((bootdev->boot_device == BOOT_DEVICE_MMC1 ||
+	     bootdev->boot_device == BOOT_DEVICE_MMC2 ||
+	     bootdev->boot_device == BOOT_DEVICE_MMC2_2) &&
+	    mhdr->blockid != IBR_HDR_SDIO_ID) {
+		printf("ERROR: Wrong blockid (%u) in SDIO kwbimage\n",
+		       mhdr->blockid);
 		return -EINVAL;
 	}
+#endif
 
 	spl_image->offset = mhdr->srcaddr;