block/nvme: Change size and alignment of queue

In preparation of 64kB host page support, let's change the size
and alignment of the queue so that the VFIO DMA MAP succeeds.
We align on the host page size.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20201029093306.1063879-21-philmd@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>

diff --git a/block/nvme.c b/block/nvme.c
index 7628623c05a25241151d94c48a093d033a58ac79..4a8589d2d29eb25f4f206bc628388454c3fb6caa 100644 (file)
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -167,9 +167,9 @@ static bool nvme_init_queue(BDRVNVMeState *s, NVMeQueue *q,
     size_t bytes;
     int r;
 
-    bytes = ROUND_UP(nentries * entry_bytes, s->page_size);
+    bytes = ROUND_UP(nentries * entry_bytes, qemu_real_host_page_size);
     q->head = q->tail = 0;
-    q->queue = qemu_try_memalign(s->page_size, bytes);
+    q->queue = qemu_try_memalign(qemu_real_host_page_size, bytes);
     if (!q->queue) {
         error_setg(errp, "Cannot allocate queue");
         return false;