Changeset 51232 in vbox for trunk/src/VBox/Devices/PC/BIOS/ahci.c

Timestamp:

May 12, 2014 10:14:17 AM (11 years ago)

Author:

vboxsync

Message:

AHCI: Another try to fix The AssertRelease issue during a reset. Move the second part of the port reset to the I/O thread to avoid any races. Needs minor tweaks in the BIOS driver to make it work with the changed behavior

File:

• trunk/src/VBox/Devices/PC/BIOS/ahci.c (modified) (1 diff)

trunk/src/VBox/Devices/PC/BIOS/ahci.c

@@ -627 +627 @@
     /* Check if there is a device on the port. */
     VBOXAHCI_PORT_READ_REG(ahci->iobase, u8Port, AHCI_REG_PORT_SSTS, val);
+    if (ahci_ctrl_extract_bits(val, 0xfL, 0) == 0)
+        return; /* No device detected. */
+
+    do
+    {
+        VBOXAHCI_PORT_READ_REG(ahci->iobase, u8Port, AHCI_REG_PORT_SSTS, val);
+    } while (ahci_ctrl_extract_bits(val, 0xfL, 0) == 0x1);
+
     if (ahci_ctrl_extract_bits(val, 0xfL, 0) == 0x3)
     {