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vhost: add traces for memory listeners
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 <peterx@redhat.com> Message-Id: <20180122060244.29368-2-peterx@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -25,3 +25,9 @@ virtio_balloon_handle_output(const char *name, uint64_t gpa) "section name: %s g
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virtio_balloon_get_config(uint32_t num_pages, uint32_t actual) "num_pages: %d actual: %d"
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virtio_balloon_set_config(uint32_t actual, uint32_t oldactual) "actual: %d oldactual: %d"
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virtio_balloon_to_target(uint64_t target, uint32_t num_pages) "balloon target: 0x%"PRIx64" num_pages: %d"
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# hw/virtio/vhost.c
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vhost_region_add(void *p, const char *mr) "dev %p mr %s"
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vhost_region_del(void *p, const char *mr) "dev %p mr %s"
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vhost_iommu_region_add(void *p, const char *mr) "dev %p mr %s"
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vhost_iommu_region_del(void *p, const char *mr) "dev %p mr %s"
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@ -27,6 +27,7 @@
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#include "hw/virtio/virtio-access.h"
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#include "migration/blocker.h"
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#include "sysemu/dma.h"
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#include "trace.h"
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/* enabled until disconnected backend stabilizes */
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#define _VHOST_DEBUG 1
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@ -687,6 +688,7 @@ static void vhost_region_add(MemoryListener *listener,
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return;
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}
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trace_vhost_region_add(dev, section->mr->name ?: NULL);
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++dev->n_mem_sections;
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dev->mem_sections = g_renew(MemoryRegionSection, dev->mem_sections,
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dev->n_mem_sections);
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@ -706,6 +708,7 @@ static void vhost_region_del(MemoryListener *listener,
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return;
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}
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trace_vhost_region_del(dev, section->mr->name ?: NULL);
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vhost_set_memory(listener, section, false);
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memory_region_unref(section->mr);
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for (i = 0; i < dev->n_mem_sections; ++i) {
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@ -743,6 +746,8 @@ static void vhost_iommu_region_add(MemoryListener *listener,
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return;
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}
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trace_vhost_iommu_region_add(dev, section->mr->name ?: NULL);
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iommu = g_malloc0(sizeof(*iommu));
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end = int128_add(int128_make64(section->offset_within_region),
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section->size);
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@ -771,6 +776,8 @@ static void vhost_iommu_region_del(MemoryListener *listener,
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return;
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}
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trace_vhost_iommu_region_del(dev, section->mr->name ?: NULL);
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QLIST_FOREACH(iommu, &dev->iommu_list, iommu_next) {
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if (iommu->mr == section->mr &&
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iommu->n.start == section->offset_within_region) {
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