ahci: stash ncq command

For migration and werror=stop/rerror=stop resume purposes,
it will be convenient to have the command handy inside of
ncq_tfs.

Eventually, we'd like to avoid reading from the FIS entirely
after the initial read, so this is a byte (hah!) sized step
in that direction.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435767578-32743-3-git-send-email-jsnow@redhat.com

1 files changed, 1 insertions, 0 deletions

diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
index b8872a4e4d..33607d7fad 100644
--- a/hw/ide/ahci.h
+++ b/hw/ide/ahci.h
@@ -259,6 +259,7 @@ typedef struct NCQTransferState {
     uint16_t sector_count;
     uint64_t lba;
     uint8_t tag;
+    uint8_t cmd;
     int slot;
     int used;
 } NCQTransferState;