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-rw-r--r--tests/libqos/ahci.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index 8c3f6645eb..3da168abb2 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -311,6 +311,28 @@ void ahci_port_clear(AHCIQState *ahci, uint8_t port)
qmemset(ahci->port[port].fb, 0x00, 0x100);
}
+/**
+ * Check a port for errors.
+ */
+void ahci_port_check_error(AHCIQState *ahci, uint8_t port)
+{
+ uint32_t reg;
+
+ /* The upper 9 bits of the IS register all indicate errors. */
+ reg = ahci_px_rreg(ahci, port, AHCI_PX_IS);
+ reg >>= 23;
+ g_assert_cmphex(reg, ==, 0);
+
+ /* The Sata Error Register should be empty. */
+ reg = ahci_px_rreg(ahci, port, AHCI_PX_SERR);
+ g_assert_cmphex(reg, ==, 0);
+
+ /* The TFD also has two error sections. */
+ reg = ahci_px_rreg(ahci, port, AHCI_PX_TFD);
+ ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_STS_ERR);
+ ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_ERR);
+}
+
/* Get the command in #slot of port #port. */
void ahci_get_command_header(AHCIQState *ahci, uint8_t port,
uint8_t slot, AHCICommandHeader *cmd)