hw/block/nvme: add support for the get log page command

Add support for the Get Log Page command and basic implementations of
the mandatory Error Information, SMART / Health Information and Firmware
Slot Information log pages.

In violation of the specification, the SMART / Health Information log
page does not persist information over the lifetime of the controller
because the device has no place to store such persistent state.

Note that the LPA field in the Identify Controller data structure
intentionally has bit 0 cleared because there is no namespace specific
information in the SMART / Health information log page.

Required for compliance with NVMe revision 1.3d. See NVM Express 1.3d,
Section 5.14 ("Get Log Page command").

Signed-off-by: Klaus Jensen <klaus.jensen@cnexlabs.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Acked-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200706061303.246057-8-its@irrelevant.dk>

1 files changed, 2 insertions, 0 deletions

diff --git a/hw/block/nvme.h b/hw/block/nvme.h
index e3a2c907e2..8228978e93 100644
--- a/hw/block/nvme.h
+++ b/hw/block/nvme.h
@@ -98,6 +98,8 @@ typedef struct NvmeCtrl {
     uint32_t    irq_status;
     uint64_t    host_timestamp;                 /* Timestamp sent by the host */
     uint64_t    timestamp_set_qemu_clock_ms;    /* QEMU clock time */
+    uint64_t    starttime_ms;
+    uint16_t    temperature;
 
     HostMemoryBackend *pmrdev;