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Ping: [PATCH] x86/altp2m: don't consider "active" when enabling failed
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 18 Oct 2021 10:26:09 +0200
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- Cc: George Dunlap <george.dunlap@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Ian Jackson <iwj@xxxxxxxxxxxxxx>, Tamas K Lengyel <tamas@xxxxxxxxxxxxx>, Petre Pircalabu <ppircalabu@xxxxxxxxxxxxxxx>, Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>
- Delivery-date: Mon, 18 Oct 2021 08:26:20 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 25.08.2021 11:31, Jan Beulich wrote:
> We should not rely on guests to not use altp2m after reporting failure
> of HVMOP_altp2m_set_domain_state to them. Set "active" back to false in
> this case.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Because of their relationship, I'm also Cc-ing the vm-event maintainers /
reviewers: Maybe one of you would care to review this one?
Jan
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -4609,6 +4609,8 @@ static int do_altp2m_op(
> if ( ostate )
> p2m_flush_altp2m(d);
> }
> + else if ( rc )
> + d->arch.altp2m_active = false;
>
> domain_unpause_except_self(d);
> break;
>
>
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