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[Qemu-devel] [PATCH v2 1/4] vhost: add traces for memory listeners
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH v2 1/4] vhost: add traces for memory listeners |
Date: |
Mon, 22 Jan 2018 14:02:41 +0800 |
Trace these operations on two memory listeners. It helps to verify the
new memory listener fix, and good to keep them there.
Signed-off-by: Peter Xu <address@hidden>
---
hw/virtio/trace-events | 6 ++++++
hw/virtio/vhost.c | 7 +++++++
2 files changed, 13 insertions(+)
diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events
index 775461ae98..2b8f81eb25 100644
--- a/hw/virtio/trace-events
+++ b/hw/virtio/trace-events
@@ -25,3 +25,9 @@ virtio_balloon_handle_output(const char *name, uint64_t gpa)
"section name: %s g
virtio_balloon_get_config(uint32_t num_pages, uint32_t actual) "num_pages: %d
actual: %d"
virtio_balloon_set_config(uint32_t actual, uint32_t oldactual) "actual: %d
oldactual: %d"
virtio_balloon_to_target(uint64_t target, uint32_t num_pages) "balloon target:
0x%"PRIx64" num_pages: %d"
+
+# hw/virtio/vhost.c
+vhost_region_add(void *p, const char *mr) "dev %p mr %s"
+vhost_region_del(void *p, const char *mr) "dev %p mr %s"
+vhost_iommu_region_add(void *p, const char *mr) "dev %p mr %s"
+vhost_iommu_region_del(void *p, const char *mr) "dev %p mr %s"
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index e4290ce93d..19a7a3cb37 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -27,6 +27,7 @@
#include "hw/virtio/virtio-access.h"
#include "migration/blocker.h"
#include "sysemu/dma.h"
+#include "trace.h"
/* enabled until disconnected backend stabilizes */
#define _VHOST_DEBUG 1
@@ -687,6 +688,7 @@ static void vhost_region_add(MemoryListener *listener,
return;
}
+ trace_vhost_region_add(dev, section->mr->name ?: NULL);
++dev->n_mem_sections;
dev->mem_sections = g_renew(MemoryRegionSection, dev->mem_sections,
dev->n_mem_sections);
@@ -706,6 +708,7 @@ static void vhost_region_del(MemoryListener *listener,
return;
}
+ trace_vhost_region_del(dev, section->mr->name ?: NULL);
vhost_set_memory(listener, section, false);
memory_region_unref(section->mr);
for (i = 0; i < dev->n_mem_sections; ++i) {
@@ -743,6 +746,8 @@ static void vhost_iommu_region_add(MemoryListener *listener,
return;
}
+ trace_vhost_iommu_region_add(dev, section->mr->name ?: NULL);
+
iommu = g_malloc0(sizeof(*iommu));
end = int128_add(int128_make64(section->offset_within_region),
section->size);
@@ -771,6 +776,8 @@ static void vhost_iommu_region_del(MemoryListener *listener,
return;
}
+ trace_vhost_iommu_region_del(dev, section->mr->name ?: NULL);
+
QLIST_FOREACH(iommu, &dev->iommu_list, iommu_next) {
if (iommu->mr == section->mr &&
iommu->n.start == section->offset_within_region) {
--
2.14.3
- [Qemu-devel] [PATCH v2 0/4] memory/vfio: notify region_del() when unregister listeners, Peter Xu, 2018/01/22
- [Qemu-devel] [PATCH v2 1/4] vhost: add traces for memory listeners,
Peter Xu <=
- [Qemu-devel] [PATCH v2 2/4] arm: postpone device listener unregister, Peter Xu, 2018/01/22
- [Qemu-devel] [PATCH v2 3/4] vfio: listener unregister before unset container, Peter Xu, 2018/01/22
- [Qemu-devel] [PATCH v2 4/4] memory: do explicit cleanup when remove listeners, Peter Xu, 2018/01/22
- Re: [Qemu-devel] [PATCH v2 0/4] memory/vfio: notify region_del() when unregister listeners, Paolo Bonzini, 2018/01/26
- Re: [Qemu-devel] [PATCH v2 0/4] memory/vfio: notify region_del() when unregister listeners, Paolo Bonzini, 2018/01/30