diff options
Diffstat (limited to 'hw/virtio/virtio-balloon.c')
| -rw-r--r-- | hw/virtio/virtio-balloon.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index 7bfbb75ad3..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)); } @@ -294,13 +298,16 @@ static void virtio_balloon_set_config(VirtIODevice *vdev, VirtIOBalloon *dev = VIRTIO_BALLOON(vdev); struct virtio_balloon_config config; uint32_t oldactual = dev->actual; + ram_addr_t vm_ram_size = get_current_ram_size(); + memcpy(&config, config_data, sizeof(struct virtio_balloon_config)); dev->actual = le32_to_cpu(config.actual); if (dev->actual != oldactual) { - qapi_event_send_balloon_change(ram_size - + qapi_event_send_balloon_change(vm_ram_size - ((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) @@ -312,22 +319,24 @@ static uint32_t virtio_balloon_get_features(VirtIODevice *vdev, uint32_t f) static void virtio_balloon_stat(void *opaque, BalloonInfo *info) { VirtIOBalloon *dev = opaque; - info->actual = ram_size - ((uint64_t) dev->actual << - VIRTIO_BALLOON_PFN_SHIFT); + info->actual = get_current_ram_size() - ((uint64_t) dev->actual << + VIRTIO_BALLOON_PFN_SHIFT); } static void virtio_balloon_to_target(void *opaque, ram_addr_t target) { VirtIOBalloon *dev = VIRTIO_BALLOON(opaque); VirtIODevice *vdev = VIRTIO_DEVICE(dev); + ram_addr_t vm_ram_size = get_current_ram_size(); - if (target > ram_size) { - target = ram_size; + if (target > vm_ram_size) { + target = vm_ram_size; } if (target) { - dev->num_pages = (ram_size - target) >> VIRTIO_BALLOON_PFN_SHIFT; + 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) |