[xen master] tools/libxc: fix xc_physdev_map_pirq_msi() with PCI segments != 0

[patchbot@xxxxxxx]

commit b7838d12bd1adc12e7fa820fc124a251b8f4629e
Author:     Roger Pau Monne <roger.pau@xxxxxxxxxx>
AuthorDate: Mon Oct 20 11:56:13 2025 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Oct 21 16:56:19 2025 +0100

    tools/libxc: fix xc_physdev_map_pirq_msi() with PCI segments != 0
    
    Otherwise it's not possible for device models to map IRQs of devices on
    segments different than 0.  Keep the same function prototype and pass the
    segment in the high 16bits of the bus parameter, like it's done for the
    hypercall itself.
    
    Amends: 7620c0cf9a4d ("PCI multi-seg: add new physdevop-s")
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Release-Acked-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
    Reviewed-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
 tools/include/xenctrl.h      | 2 +-
 tools/libs/ctrl/xc_physdev.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/include/xenctrl.h b/tools/include/xenctrl.h
index c14ecd66aa..d5dbf69c89 100644
--- a/tools/include/xenctrl.h
+++ b/tools/include/xenctrl.h
@@ -1623,7 +1623,7 @@ int xc_physdev_map_pirq_msi(xc_interface *xch,
                             int index,
                             int *pirq,
                             int devfn,
-                            int bus,
+                            int segbus,
                             int entry_nr,
                             uint64_t table_base);
 
diff --git a/tools/libs/ctrl/xc_physdev.c b/tools/libs/ctrl/xc_physdev.c
index 25e686d7b3..9fb78536ea 100644
--- a/tools/libs/ctrl/xc_physdev.c
+++ b/tools/libs/ctrl/xc_physdev.c
@@ -65,7 +65,7 @@ int xc_physdev_map_pirq_msi(xc_interface *xch,
                             int index,
                             int *pirq,
                             int devfn,
-                            int bus,
+                            int segbus,
                             int entry_nr,
                             uint64_t table_base)
 {
@@ -79,10 +79,10 @@ int xc_physdev_map_pirq_msi(xc_interface *xch,
     }
     memset(&map, 0, sizeof(struct physdev_map_pirq));
     map.domid = domid;
-    map.type = MAP_PIRQ_TYPE_MSI;
+    map.type = MAP_PIRQ_TYPE_MSI_SEG;
     map.index = index;
     map.pirq = *pirq;
-    map.bus = bus;
+    map.bus = segbus;
     map.devfn = devfn;
     map.entry_nr = entry_nr;
     map.table_base = table_base;
--
generated by git-patchbot for /home/xen/git/xen.git#master