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Re: [PATCH v3 18/28] xen/domctl: wrap sched_adjust() with CONFIG_MGMT_HYPERCALLS
- To: Penny Zheng <Penny.Zheng@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxx
- From: Jürgen Groß <jgross@xxxxxxxx>
- Date: Mon, 13 Oct 2025 13:03:33 +0200
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- Cc: ray.huang@xxxxxxx, oleksii.kurochko@xxxxxxxxx, Nathan Studer <nathan.studer@xxxxxxxxxxxxxxx>, Stewart Hildebrand <stewart@xxxxxxx>, Dario Faggioli <dfaggioli@xxxxxxxx>, George Dunlap <gwd@xxxxxxxxxxxxxx>, Meng Xu <mengxu@xxxxxxxxxxxxx>, "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Mon, 13 Oct 2025 11:03:49 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 13.10.25 12:15, Penny Zheng wrote:
Function sched_adjust() is responsible for XEN_DOMCTL_scheduler_op domctl-op,
so it could be wrapped with CONFIG_MGMT_HYPERCALLS.
Tracing its calling chain, the following functions shall be wrapped with
CONFIG_MGMT_HYPERCALLS too:
- sched_adjust_dom()
- scheduler-specific .adjust() callback
- xsm_sysctl_scheduler_op()
Otherwise all these functions will become unreachable when MGMT_HYPERCALLS=n,
and hence violating Misra rule 2.1.
Signed-off-by: Penny Zheng <Penny.Zheng@xxxxxxx>
Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Just one further remark below (not for this patch).
diff --git a/xen/include/xsm/xsm.h b/xen/include/xsm/xsm.h
index 4c6e0dc0f9..9dd485646a 100644
--- a/xen/include/xsm/xsm.h
+++ b/xen/include/xsm/xsm.h
@@ -56,8 +56,8 @@ struct xsm_ops {
struct xen_domctl_getdomaininfo *info);
int (*domain_create)(struct domain *d, uint32_t ssidref);
int (*getdomaininfo)(struct domain *d);
As visible in this context .getdomaininfo() is not hidden yet, which
I think is still true at the end of the series, while I believe it
should be used by systl/domctl code only.
Or did I miss something?
Juergen
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