xen/arm: add SCI mediator support for DomUs

Integration of the SCMI mediator with xen libs: - add hypercalls to aquire SCI channel and set device permissions for DomUs; - add SCMI_SMC nodes to DomUs device-tree based on partial device-tree; - SCI requests redirection from DomUs to Firmware. Signed-off-by: Oleksii Moisieiev <[email protected]>
xen-troops · Sep 30, 2024 · 2eb8c90 · 2eb8c90
1 parent 4a28169
commit 2eb8c90
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Showing 8 changed files with 367 additions and 14 deletions.
diff --git a/tools/include/xenctrl.h b/tools/include/xenctrl.h
@@ -1230,6 +1230,9 @@ int xc_domain_getvnuma(xc_interface *xch,
 int xc_domain_soft_reset(xc_interface *xch,
                          uint32_t domid);
 
+int xc_domain_get_sci_info(xc_interface *xch, uint32_t domid,
+                           uint64_t *paddr, uint32_t *func_id);
+
 #if defined(__i386__) || defined(__x86_64__)
 /*
  * PC BIOS standard E820 types and structure.

diff --git a/tools/libs/ctrl/xc_domain.c b/tools/libs/ctrl/xc_domain.c
@@ -2180,6 +2180,24 @@ int xc_domain_soft_reset(xc_interface *xch,
     domctl.domain = domid;
     return do_domctl(xch, &domctl);
 }
+
+int xc_domain_get_sci_info(xc_interface *xch, uint32_t domid,
+                            uint64_t *paddr, uint32_t *func_id)
+{
+    struct xen_domctl domctl = {};
+
+    memset(&domctl, 0, sizeof(domctl));
+    domctl.cmd = XEN_DOMCTL_get_sci_info;
+    domctl.domain = domid;
+
+    if ( do_domctl(xch, &domctl) != 0 )
+        return 1;
+
+    *paddr = domctl.u.sci_info.paddr;
+    *func_id = domctl.u.sci_info.func_id;
+    return 0;
+}
+
 /*
  * Local variables:
  * mode: C