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authorJonathan Helman <jonathan.helman@oracle.com>2018-03-19 15:28:49 -0700
committerMichael S. Tsirkin <mst@redhat.com>2018-05-23 03:14:40 +0300
commitb7b126442977dcfa5641e38b084bd13a0b366cff (patch)
tree52b08e7d20235604254f9772f7c74159825a9c06 /hw/virtio/virtio-balloon.c
parent50a6fa8f939a3448967592e5136afcc063f9a25d (diff)
downloadfocaccia-qemu-b7b126442977dcfa5641e38b084bd13a0b366cff.tar.gz
focaccia-qemu-b7b126442977dcfa5641e38b084bd13a0b366cff.zip
virtio-balloon: add hugetlb page allocation counts
qemu should read and report hugetlb page allocation
counts exported in the following kernel patch:

    commit 4c3ca37c4a4394978fd0f005625f6064ed2b9a64
    Author: Jonathan Helman <jonathan.helman@oracle.com>
    Date:   Mon Mar 19 11:00:35 2018 -0700

    virtio_balloon: export hugetlb page allocation counts

    Export the number of successful and failed hugetlb page
    allocations via the virtio balloon driver. These 2 counts
    come directly from the vm_events HTLB_BUDDY_PGALLOC and
    HTLB_BUDDY_PGALLOC_FAIL.

Signed-off-by: Jonathan Helman <jonathan.helman@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'hw/virtio/virtio-balloon.c')
-rw-r--r--hw/virtio/virtio-balloon.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index f456cea2e7..1f7a87f094 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -52,6 +52,8 @@ static const char *balloon_stat_names[] = {
    [VIRTIO_BALLOON_S_MEMTOT] = "stat-total-memory",
    [VIRTIO_BALLOON_S_AVAIL] = "stat-available-memory",
    [VIRTIO_BALLOON_S_CACHES] = "stat-disk-caches",
+   [VIRTIO_BALLOON_S_HTLB_PGALLOC] = "stat-htlb-pgalloc",
+   [VIRTIO_BALLOON_S_HTLB_PGFAIL] = "stat-htlb-pgfail",
    [VIRTIO_BALLOON_S_NR] = NULL
 };