[PATCH v3 06/18] hw/block/nvme: mark fw slot 1 as read-only

[Klaus Jensen]

From: Klaus Jensen <k.jensen@samsung.com>

Mark firmware slot 1 as read-only and only support that slot.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
---
 hw/block/nvme.c      | 3 ++-
 include/block/nvme.h | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index a330ccf91620..b6bc75eb61a2 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -62,6 +62,7 @@
 #define NVME_TEMPERATURE 0x143
 #define NVME_TEMPERATURE_WARNING 0x157
 #define NVME_TEMPERATURE_CRITICAL 0x175
+#define NVME_NUM_FW_SLOTS 1
 
 #define NVME_GUEST_ERR(trace, fmt, ...) \
     do { \
@@ -1666,7 +1667,7 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice 
*pci_dev)
      * inconsequential.
      */
     id->acl = 3;
-    id->frmw = 7 << 1;
+    id->frmw = (NVME_NUM_FW_SLOTS << 1) | NVME_FRMW_SLOT1_RO;
     id->lpa = 1 << 0;
 
     /* recommended default value (~70 C) */
diff --git a/include/block/nvme.h b/include/block/nvme.h
index d2c457695b38..d639e8bbee92 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -842,6 +842,10 @@ enum NvmeIdCtrlOncs {
     NVME_ONCS_TIMESTAMP     = 1 << 6,
 };
 
+enum NvmeIdCtrlFrmw {
+    NVME_FRMW_SLOT1_RO = 1 << 0,
+};
+
 #define NVME_CTRL_SQES_MIN(sqes) ((sqes) & 0xf)
 #define NVME_CTRL_SQES_MAX(sqes) (((sqes) >> 4) & 0xf)
 #define NVME_CTRL_CQES_MIN(cqes) ((cqes) & 0xf)
-- 
2.27.0