From: Ard Biesheuvel Date: Tue, 24 Mar 2015 17:48:07 +0000 (+0000) Subject: ARM: kvm: assert on HYP section boundaries not actual code size X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=12eb3e833961bfe532b763a6e4e817ec87f48bc7;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git ARM: kvm: assert on HYP section boundaries not actual code size Using ASSERT() with an expression that involves a symbol that is only supplied through a PROVIDE() definition in the linker script itself is apparently not supported by some older versions of binutils. So instead, rewrite the expression so that only the section boundaries __hyp_idmap_text_start and __hyp_idmap_text_end are used. Note that this reverts the fix in 06f75a1f6200 ("ARM, arm64: kvm: get rid of the bounce page") for the ASSERT() being triggered erroneously when unrelated linker emitted veneers happen to end up in the HYP idmap region. Signed-off-by: Ard Biesheuvel Signed-off-by: Will Deacon --- diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 2d760df0d57d..808398ec024e 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -381,5 +381,5 @@ ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined") * and should not cross a page boundary. * The above comment applies as well. */ -ASSERT((__hyp_idmap_text_start & ~PAGE_MASK) + __hyp_idmap_size <= PAGE_SIZE, +ASSERT(__hyp_idmap_text_end - (__hyp_idmap_text_start & PAGE_MASK) <= PAGE_SIZE, "HYP init code too big or misaligned")