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-rw-r--r--hw/block/nvme.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 1e071662d2..ad988d7c24 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -615,6 +615,13 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset, uint64_t data,
n->bar.intmc = n->bar.intms;
break;
case 0x14:
+ /* Windows first sends data, then sends enable bit */
+ if (!NVME_CC_EN(data) && !NVME_CC_EN(n->bar.cc) &&
+ !NVME_CC_SHN(data) && !NVME_CC_SHN(n->bar.cc))
+ {
+ n->bar.cc = data;
+ }
+
if (NVME_CC_EN(data) && !NVME_CC_EN(n->bar.cc)) {
n->bar.cc = data;
if (nvme_start_ctrl(n)) {