Author: mav
Date: Wed May 13 10:30:53 2015
New Revision: 282845
URL: https://svnweb.freebsd.org/changeset/base/282845
Log:
MFC r282345: Initialize PxCMD on reset and make its read-only bits such.
Modified:
stable/10/usr.sbin/bhyve/pci_ahci.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/usr.sbin/bhyve/pci_ahci.c
==============================================================================
--- stable/10/usr.sbin/bhyve/pci_ahci.c Wed May 13 10:29:45 2015
(r282844)
+++ stable/10/usr.sbin/bhyve/pci_ahci.c Wed May 13 10:30:53 2015
(r282845)
@@ -490,6 +490,9 @@ ahci_reset(struct pci_ahci_softc *sc)
for (i = 0; i < sc->ports; i++) {
sc->port[i].ie = 0;
sc->port[i].is = 0;
+ sc->port[i].cmd = (AHCI_P_CMD_SUD | AHCI_P_CMD_POD);
+ if (sc->port[i].bctx)
+ sc->port[i].cmd |= AHCI_P_CMD_CPS;
sc->port[i].sctl = 0;
ahci_port_reset(&sc->port[i]);
}
@@ -1941,8 +1944,15 @@ pci_ahci_port_write(struct pci_ahci_soft
break;
case AHCI_P_CMD:
{
- p->cmd = value;
-
+ p->cmd &= ~(AHCI_P_CMD_ST | AHCI_P_CMD_SUD | AHCI_P_CMD_POD |
+ AHCI_P_CMD_CLO | AHCI_P_CMD_FRE | AHCI_P_CMD_APSTE |
+ AHCI_P_CMD_ATAPI | AHCI_P_CMD_DLAE | AHCI_P_CMD_ALPE |
+ AHCI_P_CMD_ASP | AHCI_P_CMD_ICC_MASK);
+ p->cmd |= (AHCI_P_CMD_ST | AHCI_P_CMD_SUD | AHCI_P_CMD_POD |
+ AHCI_P_CMD_CLO | AHCI_P_CMD_FRE | AHCI_P_CMD_APSTE |
+ AHCI_P_CMD_ATAPI | AHCI_P_CMD_DLAE | AHCI_P_CMD_ALPE |
+ AHCI_P_CMD_ASP | AHCI_P_CMD_ICC_MASK) & value;
+
if (!(value & AHCI_P_CMD_ST)) {
ahci_port_stop(p);
} else {
@@ -1970,6 +1980,10 @@ pci_ahci_port_write(struct pci_ahci_soft
p->cmd &= ~AHCI_P_CMD_CLO;
}
+ if (value & AHCI_P_CMD_ICC_MASK) {
+ p->cmd &= ~AHCI_P_CMD_ICC_MASK;
+ }
+
ahci_handle_port(p);
break;
}
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