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Re: [PATCH v2 3/3] x86/xen: add a dummy trampoline for Xen PV guests
- To: Juergen Gross <jgross@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 23 Nov 2022 10:37:24 +0100
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- Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx
- Delivery-date: Wed, 23 Nov 2022 09:37:31 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 22.11.2022 17:38, Juergen Gross wrote:
> @@ -137,12 +138,28 @@ static void __init xen_pv_init_platform(void)
> xen_init_time_ops();
> }
>
> +static struct real_mode_header xen_rm_header;
> +
> +static __initdata struct trampoline_ref xen_dummy_trampoline = {
> + .blob = (unsigned char *)&xen_rm_header,
> + .blob_end = (unsigned char *)&xen_rm_header,
With both pointing to the start of the struct, doesn't it suffice
for the above to be xen_rm_header[0]? At which point there'd be no
reason to wonder whether that struct could live in .init.data ...
Jan
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