From: Klaus Jensen <k.jen...@samsung.com> Support returning Command Sequence Error if Set Features on Number of Queues is called after queues have been created.
Signed-off-by: Klaus Jensen <k.jen...@samsung.com> --- hw/block/nvme.c | 7 +++++++ hw/block/nvme.h | 1 + 2 files changed, 8 insertions(+) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 007f8817f101..b40d27cddc46 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -881,6 +881,8 @@ static uint16_t nvme_create_cq(NvmeCtrl *n, NvmeCmd *cmd) cq = g_malloc0(sizeof(*cq)); nvme_init_cq(cq, n, prp1, cqid, vector, qsize + 1, NVME_CQ_FLAGS_IEN(qflags)); + + n->qs_created = true; return NVME_SUCCESS; } @@ -1194,6 +1196,10 @@ static uint16_t nvme_set_feature(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req) blk_set_enable_write_cache(n->conf.blk, dw11 & 1); break; case NVME_NUMBER_OF_QUEUES: + if (n->qs_created) { + return NVME_CMD_SEQ_ERROR | NVME_DNR; + } + /* * NVMe v1.3, Section 5.21.1.7: 0xffff is not an allowed value for NCQR * and NSQR. @@ -1332,6 +1338,7 @@ static void nvme_clear_ctrl(NvmeCtrl *n) n->aer_queued = 0; n->outstanding_aers = 0; + n->qs_created = false; blk_flush(n->conf.blk); n->bar.cc = 0; diff --git a/hw/block/nvme.h b/hw/block/nvme.h index b709a8bb8d40..b4d1738a3d0a 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -99,6 +99,7 @@ typedef struct NvmeCtrl { BlockConf conf; NvmeParams params; + bool qs_created; uint32_t page_size; uint16_t page_bits; uint16_t max_prp_ents; -- 2.25.1