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Re: [PATCH v3 1/4] x86/HVM: don't (almost) open-code POP_GPRS
- To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Thu, 2 Jul 2026 12:31:09 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Thu, 02 Jul 2026 11:31:24 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 02/07/2026 11:55 am, Jan Beulich wrote:
> It can be used as-is for VMX. For SVM the special treatment of %rax needs
> accounting for.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> ---
> This is the minimum required as a prereq to the next patch (to avoid the
> need for custom adjustments in the two places). We could go further and
> switch to using PUSH_AND_CLEAR_GPRS at the same time.
I've got several part-series that result in purging SAVE_ALL/RESTORE_ALL.
If you want to put this patch in, then Acked-by: Andrew Cooper
<andrew.cooper3@xxxxxxxxxx> but I firmly want to finish my series before
patch 2 adds yet-more complexity to macros which I'm wanting to remove
for being too complicated already.
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