Changeset 104068 in vbox for trunk

Timestamp:

Mar 26, 2024 4:38:31 PM (10 months ago)

Author:

vboxsync

Message:

BIOS: Build real VDS S/G lists in AHCI driver, don't just fake it.

File:

• trunk/src/VBox/Devices/PC/BIOS/ahci.c (modified) (4 diffs)

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

@@ -41 +41 @@
 
 /* Number of S/G table entries in EDDS. */
-#define NUM_EDDS_SG         16
+#define NUM_EDDS_SG         17
 
 
@@ -352 +352 @@
     uint16_t        sectsz = bios_dsk->drqp.sect_sz;
     fis_d2h __far   *d2h;
+    int             i;
 
     _fmemset(&ahci->abCmd[0], 0, sizeof(ahci->abCmd));
@@ -380 +381 @@
 
     /* Set up the PRDT. */
-    ahci->aPrdt[ahci->cur_prd].len       = ahci->edds.u.sg[0].size - 1;
-    ahci->aPrdt[ahci->cur_prd].phys_addr = ahci->edds.u.sg[0].phys_addr;
-    ++ahci->cur_prd;
+    for (i = 0; i < ahci->edds.num_used; ++i)
+    {
+        ahci->aPrdt[ahci->cur_prd].len       = ahci->edds.u.sg[i].size - 1;
+        ahci->aPrdt[ahci->cur_prd].phys_addr = ahci->edds.u.sg[i].phys_addr;
+        ++ahci->cur_prd;
+    }
 
 #if DEBUG_AHCI
@@ -622 +626 @@
 
     return ahci->aCmdHdr[1] == 0 ? 4 : 0;
-}
-
-/* Wait for the specified number of BIOS timer ticks or data bytes. */
-void wait_ticks_device_init( unsigned wait_ticks, unsigned wait_bytes )
-{
 }