[PULL v2 48/61] hw/vfio/common: Add vfio_listener_region_del_iommu trace event

[Michael S. Tsirkin]

From: Eric Auger <eric.auger@redhat.com>

Trace when VFIO gets notified about the deletion of an IOMMU MR.
Also trace the name of the region in the add_iommu trace message.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20240716094619.1713905-6-eric.auger@redhat.com>
Tested-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/vfio/common.c     | 3 ++-
 hw/vfio/trace-events | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 6d15b36e0b..cfc44a4569 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -599,7 +599,7 @@ static void vfio_listener_region_add(MemoryListener 
*listener,
         IOMMUMemoryRegion *iommu_mr = IOMMU_MEMORY_REGION(section->mr);
         int iommu_idx;
 
-        trace_vfio_listener_region_add_iommu(iova, end);
+        trace_vfio_listener_region_add_iommu(section->mr->name, iova, end);
         /*
          * FIXME: For VFIO iommu types which have KVM acceleration to
          * avoid bouncing all map/unmaps through qemu this way, this
@@ -725,6 +725,7 @@ static void vfio_listener_region_del(MemoryListener 
*listener,
     if (memory_region_is_iommu(section->mr)) {
         VFIOGuestIOMMU *giommu;
 
+        trace_vfio_listener_region_del_iommu(section->mr->name);
         QLIST_FOREACH(giommu, &bcontainer->giommu_list, giommu_next) {
             if (MEMORY_REGION(giommu->iommu_mr) == section->mr &&
                 giommu->n.start == section->offset_within_region) {
diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
index e16179b507..98bd4dccea 100644
--- a/hw/vfio/trace-events
+++ b/hw/vfio/trace-events
@@ -95,7 +95,8 @@ vfio_region_read(char *name, int index, uint64_t addr, 
unsigned size, uint64_t d
 vfio_iommu_map_notify(const char *op, uint64_t iova_start, uint64_t iova_end) 
"iommu %s @ 0x%"PRIx64" - 0x%"PRIx64
 vfio_listener_region_skip(const char *name, uint64_t start, uint64_t end) 
"SKIPPING %s 0x%"PRIx64" - 0x%"PRIx64
 vfio_spapr_group_attach(int groupfd, int tablefd) "Attached groupfd %d to 
liobn fd %d"
-vfio_listener_region_add_iommu(uint64_t start, uint64_t end) "region_add 
[iommu] 0x%"PRIx64" - 0x%"PRIx64
+vfio_listener_region_add_iommu(const char* name, uint64_t start, uint64_t end) 
"region_add [iommu] %s 0x%"PRIx64" - 0x%"PRIx64
+vfio_listener_region_del_iommu(const char *name) "region_del [iommu] %s"
 vfio_listener_region_add_ram(uint64_t iova_start, uint64_t iova_end, void 
*vaddr) "region_add [ram] 0x%"PRIx64" - 0x%"PRIx64" [%p]"
 vfio_known_safe_misalignment(const char *name, uint64_t iova, uint64_t 
offset_within_region, uintptr_t page_size) "Region \"%s\" iova=0x%"PRIx64" 
offset_within_region=0x%"PRIx64" qemu_real_host_page_size=0x%"PRIxPTR
 vfio_listener_region_add_no_dma_map(const char *name, uint64_t iova, uint64_t 
size, uint64_t page_size) "Region \"%s\" 0x%"PRIx64" size=0x%"PRIx64" is not 
aligned to 0x%"PRIx64" and cannot be mapped for DMA"
-- 
MST