Re: [PATCH v2 5/7] x86: relocate pvh_info

["Roger Pau Monné" <roger.pau@citrix.com>]

On Mon, Jan 22, 2018 at 12:35:21PM +0000, Wei Liu wrote:
> To avoid spamming the list with all the other acked patches, here is the
> updated patch.
> 
> ---8<---
> From 1ac0afbbc0ecd620c5fba3a03bb084bc4dafc78e Mon Sep 17 00:00:00 2001
> From: Wei Liu <wei.liu2@citrix.com>
> Date: Wed, 17 Jan 2018 18:38:02 +0000
> Subject: [PATCH] x86: relocate pvh_info
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> Modify early boot code to relocate pvh info as well, so that we can be
> sure __va in __start_xen works.
> 
> Signed-off-by: Wei Liu <wei.liu2@citrix.com>

Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

With one question below.

> diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S
> index 0f652cea11..aa2e2a93c8 100644
> --- a/xen/arch/x86/boot/head.S
> +++ b/xen/arch/x86/boot/head.S
> @@ -414,6 +414,7 @@ __pvh_start:
>  
>          /* Set trampoline_phys to use mfn 1 to avoid having a mapping at VA 0 */
>          movw    $0x1000, sym_esi(trampoline_phys)
> +        movl    (%ebx), %eax /* mov $XEN_HVM_START_MAGIC_VALUE, %eax */

Do you really need the l suffix here?

Thanks, Roger.

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