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authorStefan Hajnoczi <stefanha@redhat.com>2023-10-05 09:01:01 -0400
committerStefan Hajnoczi <stefanha@redhat.com>2023-10-05 09:01:01 -0400
commit2f3913f4b2ad74baeb5a6f1d36efbd9ecdf1057d (patch)
tree2a77273973037c80a25b88dfa80bfc24baf7de52 /util
parent800af0aae1cfa456701c5fa1ef273ce47585179c (diff)
parentce0f3b032a960726c0dddfb4f81f223215179f26 (diff)
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
virtio,pci: features, cleanups vdpa: shadow vq vlan support net migration with cvq cxl: support emulating 4 HDM decoders serial number extended capability virtio: hared dma-buf Fixes, cleanups all over the place. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> * tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (53 commits) libvhost-user: handle shared_object msg vhost-user: add shared_object msg hw/display: introduce virtio-dmabuf util/uuid: add a hash function virtio: remove unused next argument from virtqueue_split_read_next_desc() virtio: remove unnecessary thread fence while reading next descriptor virtio: use shadow_avail_idx while checking number of heads libvhost-user.c: add assertion to vu_message_read_default pcie_sriov: unregister_vfs(): fix error path hw/i386/pc: improve physical address space bound check for 32-bit x86 systems amd_iommu: Fix APIC address check vdpa net: follow VirtIO initialization properly at cvq isolation probing vdpa net: stop probing if cannot set features vdpa net: fix error message setting virtio status hw/pci-bridge/cxl-upstream: Add serial number extended capability support hw/cxl: Support 4 HDM decoders at all levels of topology hw/cxl: Fix and use same calculation for HDM decoder block size everywhere hw/cxl: Add utility functions decoder interleave ways and target count. hw/cxl: Push cxl_decoder_count_enc() and cxl_decode_ig() into .c vdpa net: zero vhost_vdpa iova_tree pointer at cleanup ... Conflicts: hw/core/machine.c Context conflict with commit 314e0a84cd5d ("hw/core: remove needless includes") because it removed an adjacent #include.
Diffstat (limited to 'util')
-rw-r--r--util/uuid.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/util/uuid.c b/util/uuid.c
index b1108dd..d71aa79 100644
--- a/util/uuid.c
+++ b/util/uuid.c
@@ -116,3 +116,17 @@ QemuUUID qemu_uuid_bswap(QemuUUID uuid)
bswap16s(&uuid.fields.time_high_and_version);
return uuid;
}
+
+/* djb2 hash algorithm */
+uint32_t qemu_uuid_hash(const void *uuid)
+{
+ QemuUUID *qid = (QemuUUID *) uuid;
+ uint32_t h = 5381;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(qid->data); i++) {
+ h = (h << 5) + h + qid->data[i];
+ }
+
+ return h;
+}