Re: [Xen-devel] [PATCH 09/10] x86: check kexec relocation code fits in a page

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 25/06/13 09:33, Jan Beulich wrote:
>>>> On 24.06.13 at 19:42, David Vrabel <david.vrabel@xxxxxxxxxx> wrote:
>> --- a/xen/arch/x86/xen.lds.S
>> +++ b/xen/arch/x86/xen.lds.S
>> @@ -186,3 +186,7 @@ SECTIONS
>>    .stab.indexstr 0 : { *(.stab.indexstr) }
>>    .comment 0 : { *(.comment) }
>>  }
>> +
>> +#ifdef CONFIG_KEXEC
>> +ASSERT(__kexec_reloc_size <= PAGE_SIZE, "kexec control code is too large")
>> +#endif
> I don't recall having seen a mechanism to disable CONFIG_KEXEC, so
> why the conditional?
>
> Jan

CONFIG_KEXEC exists in include/asm-x86/config.h, but it turns out not to
compile if you disable it.

I for one would not mind in the slightest if CONFIG_KEXEC disappeared.

~Andrew

>
>
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