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Re: [PATCH 4/4] xen/virtual-region: Drop setup_virtual_regions()
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 18 Mar 2024 14:29:10 +0100
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>, Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Mon, 18 Mar 2024 13:29:16 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 18.03.2024 12:04, Andrew Cooper wrote:
> --- a/xen/common/virtual_region.c
> +++ b/xen/common/virtual_region.c
> @@ -39,6 +39,11 @@ static struct virtual_region core = {
> { __start_bug_frames_2, __stop_bug_frames_2 },
> { __start_bug_frames_3, __stop_bug_frames_3 },
> },
> +
> +#ifdef CONFIG_X86
> + .ex = __start___ex_table,
> + .ex_end = __stop___ex_table,
> +#endif
> };
>
> /* Becomes irrelevant when __init sections are cleared. */
> @@ -57,6 +62,11 @@ static struct virtual_region core_init __initdata = {
> { __start_bug_frames_2, __stop_bug_frames_2 },
> { __start_bug_frames_3, __stop_bug_frames_3 },
> },
> +
> +#ifdef CONFIG_X86
> + .ex = __start___ex_table,
> + .ex_end = __stop___ex_table,
> +#endif
> };
My main reservation here is this x86-specific code in a common file.
Are we certain both RISC-V and PPC will get away without needing to
touch this? If so, I might consider ack-ing. But really I'd prefer if
this could be minimally abstracted, via e.g. CONFIG_HAS_EXTABLE
(selected by x86 only for now).
Jan
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