qtest/ahci: add ahci_write_fis
Similar to ahci_set_command_header, add a helper that takes an
in-memory representation of a command FIS and writes it to guest
memory, handling endianness as-needed.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1423158090-25580-11-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index 8ecfdd3..1294f80 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -464,6 +464,20 @@
ahci->port[port].prdtl[slot] = 0;
}
+void ahci_write_fis(AHCIQState *ahci, RegH2DFIS *fis, uint64_t addr)
+{
+ RegH2DFIS tmp = *fis;
+
+ /* The auxiliary FIS fields are defined per-command and are not
+ * currently implemented in libqos/ahci.o, but may or may not need
+ * to be flipped. */
+
+ /* All other FIS fields are 8 bit and do not need to be flipped. */
+ tmp.count = cpu_to_le16(tmp.count);
+
+ memwrite(addr, &tmp, sizeof(tmp));
+}
+
unsigned ahci_pick_cmd(AHCIQState *ahci, uint8_t port)
{
unsigned i;
