On 2/6/19 9:22 AM, Eugeniy Paltsev wrote:
> Handle U-boot arguments paranoidly:
> * don't allow to pass unknown tag.
> * try to use external device tree blob only if corresponding tag
>(TAG_DTB) is set.
> * don't check: uboot_tag if kernel build with no ARC_UBOOT_SUPPORT.
>
> While I'm at
On 2/6/19 9:22 AM, Eugeniy Paltsev wrote:
> In case of devboards we really often disable bootloader and load
> Linux image in memory via JTAG. In case of using kernel with
> CONFIG_ARC_UBOOT_SUPPORT enabled we may crash as we will try to
> interpret some junk in a registers as a pointers to
On 2/6/19 9:22 AM, Eugeniy Paltsev wrote:
> Handle U-boot arguments paranoidly:
> * don't allow to pass unknown tag.
> * try to use external device tree blob only if corresponding tag
>(TAG_DTB) is set.
> * don't check: uboot_tag if kernel build with no ARC_UBOOT_SUPPORT.
>
> While I'm at
Eugeniy Paltsev (2):
ARC: U-boot: check arguments paranoidly
ARC: U-boot: check magic number passed from u-boot
arch/arc/kernel/head.S | 7 ++--
arch/arc/kernel/setup.c | 91 +
2 files changed, 74 insertions(+), 24 deletions(-)
--
2.14.5
In case of devboards we really often disable bootloader and load
Linux image in memory via JTAG. In case of using kernel with
CONFIG_ARC_UBOOT_SUPPORT enabled we may crash as we will try to
interpret some junk in a registers as a pointers to bootargs/etc
which aren't set by anyone in case of JTAG
Handle U-boot arguments paranoidly:
* don't allow to pass unknown tag.
* try to use external device tree blob only if corresponding tag
(TAG_DTB) is set.
* don't check: uboot_tag if kernel build with no ARC_UBOOT_SUPPORT.
While I'm at it refactor U-boot arguments handling code.
In case of initrd/initramfs /dev/console might not exist that early
as devtmpfs is mounted a bit later by /init process so disable this
check in that case.
Signed-off-by: Alexey Brodkin
---
init/main.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/init/main.c
