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Re: [RESEND PATCH v1] xen/xsm: flask: restore sidtab state on policy load failure
- To: Sergiy Kibrik <Sergiy_Kibrik@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Fri, 2 Oct 2026 11:34:12 +0200
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- Cc: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Fri, 02 Oct 2026 09:34:19 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 02.10.2026 11:26, Sergiy Kibrik wrote:
> Error path of failed sidtab_map() leaves global sidtab in shutdown state and
> from that point system is unable to allocate new SIDs in
> sidtab_context_to_sid().
> To restore sidtab state new function sidtab_activate() is introduced, which
> only
> resets shutdown flag, rewinding effect of sidtab_shutdown().
>
> Signed-off-by: Sergiy Kibrik <Sergiy_Kibrik@xxxxxxxx>
> ---
> New function is not strictly required, this also can be achieved just by
> doing sidtab_set(&sidtab, &sidtab), but this way we would rely on its
> undocumented internal behaviour.
> ---
> xen/xsm/flask/ss/services.c | 1 +
> xen/xsm/flask/ss/sidtab.c | 7 +++++++
> xen/xsm/flask/ss/sidtab.h | 1 +
> 3 files changed, 9 insertions(+)
Nothing is being said as to the reason of this resend. Was this perhaps meant
to be a ping?
Jan
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