diff options
| author | zhanghailiang <zhang.zhanghailiang@huawei.com> | 2014-11-17 13:11:10 +0800 |
|---|---|---|
| committer | Luiz Capitulino <lcapitulino@redhat.com> | 2015-03-04 13:00:04 -0500 |
| commit | 6adfdc5a6a4c2540a802e10fe0370d3ffb14487b (patch) | |
| tree | b2c8f229faf4ef6ed66b85c3b42c4a92173a86d9 | |
| parent | 463756d03164d640e3de00460488ba97302bf77e (diff) | |
virtio-balloon: Add some trace events
Add some trace events for easier debugging
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
| -rw-r--r-- | hw/virtio/virtio-balloon.c | 6 | ||||
| -rw-r--r-- | trace-events | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index 41b24c9ddd..8a48d2a178 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -25,6 +25,7 @@ #include "exec/address-spaces.h" #include "qapi/visitor.h" #include "qapi-event.h" +#include "trace.h" #if defined(__linux__) #include <sys/mman.h> @@ -222,6 +223,8 @@ static void virtio_balloon_handle_output(VirtIODevice *vdev, VirtQueue *vq) if (!int128_nz(section.size) || !memory_region_is_ram(section.mr)) continue; + trace_virtio_balloon_handle_output(memory_region_name(section.mr), + pa); /* Using memory_region_get_ram_ptr is bending the rules a bit, but should be OK because we only want a single page. */ addr = section.offset_within_region; @@ -285,6 +288,7 @@ static void virtio_balloon_get_config(VirtIODevice *vdev, uint8_t *config_data) config.num_pages = cpu_to_le32(dev->num_pages); config.actual = cpu_to_le32(dev->actual); + trace_virtio_balloon_get_config(config.num_pages, config.actual); memcpy(config_data, &config, sizeof(struct virtio_balloon_config)); } @@ -303,6 +307,7 @@ static void virtio_balloon_set_config(VirtIODevice *vdev, ((ram_addr_t) dev->actual << VIRTIO_BALLOON_PFN_SHIFT), &error_abort); } + trace_virtio_balloon_set_config(dev->actual, oldactual); } static uint32_t virtio_balloon_get_features(VirtIODevice *vdev, uint32_t f) @@ -331,6 +336,7 @@ static void virtio_balloon_to_target(void *opaque, ram_addr_t target) dev->num_pages = (vm_ram_size - target) >> VIRTIO_BALLOON_PFN_SHIFT; virtio_notify_config(vdev); } + trace_virtio_balloon_to_target(target, dev->num_pages); } static void virtio_balloon_save(QEMUFile *f, void *opaque) diff --git a/trace-events b/trace-events index f87b077805..65385f6570 100644 --- a/trace-events +++ b/trace-events @@ -143,6 +143,10 @@ cpu_out(unsigned int addr, unsigned int val) "addr %#x value %u" # balloon.c # Since requests are raised via monitor, not many tracepoints are needed. balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu" +virtio_balloon_handle_output(const char *name, uint64_t gpa) "setion name: %s gpa: %"PRIx64"" +virtio_balloon_get_config(uint32_t num_pages, uint32_t acutal) "num_pages: %d acutal: %d" +virtio_balloon_set_config(uint32_t acutal, uint32_t oldacutal) "acutal: %d oldacutal: %d" +virtio_balloon_to_target(uint64_t target, uint32_t num_pages) "balloon target: %"PRIx64" num_pages: %d" # hw/intc/apic_common.c cpu_set_apic_base(uint64_t val) "%016"PRIx64 |