Changeset 33113 in vbox for trunk/src

Timestamp:

Oct 13, 2010 5:44:44 PM (14 years ago)

Author:

vboxsync

Message:

EFI: IdeController detects AHCI IDE Emulation and patches supported modes enabling (PIO mode 4 only).

File:

• trunk/src/VBox/Devices/EFI/Firmware2/VBoxPkg/VBoxIdeControllerDxe/IdeController.c (modified) (3 diffs)

trunk/src/VBox/Devices/EFI/Firmware2/VBoxPkg/VBoxIdeControllerDxe/IdeController.c

@@ -82 +82 @@
 };
 
+static BOOLEAN gfIdeAhciEmulation = FALSE;
+
 EFI_STATUS
 EFIAPI
@@ -204 +206 @@
     Status = EFI_UNSUPPORTED;
   }
+  if (PciSubClass == 0x6)
+    gfIdeAhciEmulation = TRUE;
 
 Done:
@@ -513 +517 @@
     return EFI_OUT_OF_RESOURCES;
   }
+  EFI_ATA_COLLECTIVE_MODE *pSupportedModes = (*SupportedModes);
+  pSupportedModes->PioMode.Mode = 3; /* AtaPioMode4 see VBoxIdeBusDxe/IdeData.h */
+  if (gfIdeAhciEmulation)
+  {
+     pSupportedModes->UdmaMode.Valid = FALSE;
+     pSupportedModes->MultiWordDmaMode.Valid = FALSE;
+  }
 
   return EFI_SUCCESS;