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Re: [PATCH 6/7] x86/efi: do not merge all .init sections
- To: Roger Pau Monne <roger.pau@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Tue, 18 Mar 2025 18:08:07 +0000
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- Cc: Jan Beulich <jbeulich@xxxxxxxx>
- Delivery-date: Tue, 18 Mar 2025 18:08:12 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 18/03/2025 5:35 pm, Roger Pau Monne wrote:
> As a result of relocations now being applied after the trampoline has been
> copied into the low 1MB region, there's no need for a single .init section
> that's writable, as .init.text is no longer modified.
>
> Remove the bodge and fallback to the layout used by ELF images with an
> .init.text and .init.data section.
>
> The resulting PE sections are:
>
> Sections:
> Idx Name Size VMA LMA File off Algn
> 0 .text 0019072c ffff82d040200000 ffff82d040200000 00000440 2**4
> CONTENTS, ALLOC, LOAD, READONLY, CODE
> 1 .rodata 000884c8 ffff82d040400000 ffff82d040400000 00190b80 2**2
> CONTENTS, ALLOC, LOAD, DATA
> 2 .buildid 00000035 ffff82d0404884c8 ffff82d0404884c8 00219060 2**2
> CONTENTS, ALLOC, LOAD, READONLY, DATA
> 3 .init.text 00052866 ffff82d040600000 ffff82d040600000 002190a0 2**2
> CONTENTS, ALLOC, LOAD, READONLY, CODE
> 4 .init.data 00059730 ffff82d040658000 ffff82d040658000 0026b920 2**2
> CONTENTS, ALLOC, LOAD, DATA
> [...]
>
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
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