Hypercall PHYSDEVOP_map_pirq support to map a gsi into a specific
pirq or a free pirq, it depends on the parameter pirq(>0 or <0).
But in current xc_physdev_map_pirq, it set *pirq=index when
parameter pirq is <0, it causes to force all cases to be mapped
to a specific pirq. That has some problems, one is caller can't
get a free pirq value, another is that once the pecific pirq was
already mapped to other gsi, then it will fail.
So, change xc_physdev_map_pirq to allow to pass negative parameter
in and then get a free pirq.
Signed-off-by: Jiqian Chen <jiqian.c...@amd.com>
Signed-off-by: Huang Rui <ray.hu...@amd.com>
Signed-off-by: Jiqian Chen <jiqian.c...@amd.com>
---
tools/libs/ctrl/xc_physdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/libs/ctrl/xc_physdev.c b/tools/libs/ctrl/xc_physdev.c
index 460a8e779ce8..e9fcd755fa62 100644
--- a/tools/libs/ctrl/xc_physdev.c
+++ b/tools/libs/ctrl/xc_physdev.c
@@ -50,7 +50,7 @@ int xc_physdev_map_pirq(xc_interface *xch,
map.domid = domid;
map.type = MAP_PIRQ_TYPE_GSI;
map.index = index;
- map.pirq = *pirq < 0 ? index : *pirq;
+ map.pirq = *pirq;
rc = do_physdev_op(xch, PHYSDEVOP_map_pirq, &map, sizeof(map));
--
2.34.1
