commit: a4a12e008e292a81d312659529b71be2026ab355 From: Dave Martin <[email protected]> Date: Fri, 30 Nov 2012 11:56:05 +0000 Subject: ARM: virt: Avoid bx instruction for compatibility with <=ARMv4
Non-T variants of ARMv4 do not support the bx instruction. However, __hyp_stub_install is always called from the same instruction set used to build the bulk of the kernel, so bx should not be necessary. This patch uses the traditional "mov pc" instead of bx. Cc: <[email protected]> Signed-off-by: Dave Martin <[email protected]> [will: fixed up remaining bx instruction] Signed-off-by: Will Deacon <[email protected]> --- arch/arm/kernel/hyp-stub.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S index 65b2417..3c60256 100644 --- a/arch/arm/kernel/hyp-stub.S +++ b/arch/arm/kernel/hyp-stub.S @@ -99,7 +99,7 @@ ENTRY(__hyp_stub_install_secondary) * immediately. */ compare_cpu_mode_with_primary r4, r5, r6, r7 - bxne lr + movne pc, lr /* * Once we have given up on one CPU, we do not try to install the @@ -111,7 +111,7 @@ ENTRY(__hyp_stub_install_secondary) */ cmp r4, #HYP_MODE - bxne lr @ give up if the CPU is not in HYP mode + movne pc, lr @ give up if the CPU is not in HYP mode /* * Configure HSCTLR to set correct exception endianness/instruction set @@ -200,7 +200,7 @@ ENDPROC(__hyp_get_vectors) @ fall through ENTRY(__hyp_set_vectors) __HVC(0) - bx lr + mov pc, lr ENDPROC(__hyp_set_vectors) #ifndef ZIMAGE -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
