Changeset 83117 in vbox for trunk/src/VBox/Devices/Storage

Timestamp:

Feb 19, 2020 3:57:06 PM (5 years ago)

Author:

vboxsync

Message:

DevBusLogic: Reset mailbox positions when INITIALIZE (EXTENDED) MAILBOX command is processed. Guests do not always reset the HBA before re-initializing the mailbox.

File:

• trunk/src/VBox/Devices/Storage/DevBusLogic.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/Storage/DevBusLogic.cpp

@@ -2093 +2093 @@
             pThis->fMbxIs24Bit = true;
             pThis->cMailbox = pRequest->cMailbox;
+            pThis->uMailboxOutgoingPositionCurrent = pThis->uMailboxIncomingPositionCurrent = 0;
             pThis->GCPhysAddrMailboxOutgoingBase = (RTGCPHYS)ADDR_TO_U32(pRequest->aMailboxBaseAddr);
             /* The area for incoming mailboxes is right after the last entry of outgoing mailboxes. */
@@ -2126 +2127 @@
             pThis->fMbxIs24Bit = false;
             pThis->cMailbox = pRequest->cMailbox;
+            pThis->uMailboxOutgoingPositionCurrent = pThis->uMailboxIncomingPositionCurrent = 0;
             pThis->GCPhysAddrMailboxOutgoingBase = (RTGCPHYS)pRequest->uMailboxBaseAddress;
             /* The area for incoming mailboxes is right after the last entry of outgoing mailboxes. */