[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] [PULL 02/22] nvme: support NVME_VOLATILE_WRITE_CACHE featur

From: Kevin Wolf
Subject: [Qemu-devel] [PULL 02/22] nvme: support NVME_VOLATILE_WRITE_CACHE feature
Date: Fri, 22 May 2015 17:26:20 +0200

From: Christoph Hellwig <address@hidden>

The SCSI emulation in the Linux NVMe driver really wants to know
if a device has a volatile write cache.  Given that qemu has moved
away from a model where we report the backing store WCE bit to
one where the WCE bit is supposed to be part of the migratable
guest-visible state we always return 1 here.

Signed-off-by: Christoph Hellwig <address@hidden>
Acked-by: Keith Busch <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
 hw/block/nvme.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index ad988d7..4b6d5e6 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -479,6 +479,9 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeCmd *cmd, 
NvmeRequest *req)
         req->cqe.result =
             cpu_to_le32((n->num_queues - 1) | ((n->num_queues - 1) << 16));
+        req->cqe.result = cpu_to_le32(1);
+        break;
         return NVME_INVALID_FIELD | NVME_DNR;

reply via email to

[Prev in Thread] Current Thread [Next in Thread]