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05 April 2024, 19:05:47 UTC
Revision 552e0c8da8ff7099e6fe060cd7ec36ae11f5465b authored by Will Deacon on 26 August 2011, 15:32:57 UTC, committed by Russell King on 28 August 2011, 09:39:41 UTC 
ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
 
Commit 540b5738 ("ARM: 6999/1: head, zImage: Always Enter the kernel in
ARM state") mandates that the kernel should be entered in ARM state.

If a Thumb-2 kernel kexecs a new kernel image, we need to ensure that
we change state when branching to the new code. This patch replaces a
mov pc, lr with a bx lr on Thumb-2 kernels so that we transition to ARM
state if need be.

Reviewed-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1 parent 0ebb962
History
Tip revision: 552e0c8da8ff7099e6fe060cd7ec36ae11f5465b authored by Will Deacon on 26 August 2011, 15:32:57 UTC
ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
Tip revision: 552e0c8
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