Changeset 88332 in vbox for trunk/src

Timestamp:

Mar 31, 2021 4:28:43 PM (4 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

143558

Message:

Intel IOMMU: bugref:9967 WIP.

Location:

trunk/src/VBox/Devices/Bus

Files:

• DevIommuIntel.cpp (modified) (1 diff)
• DevIommuIntel.h (modified) (1 diff)

trunk/src/VBox/Devices/Bus/DevIommuIntel.cpp

@@ -809 +809 @@
 #endif
 
+    /** @todo VTD: Intercept PCI config space accesses for debugging. */
+#if 0
+    /*
+     * Intercept PCI config. space accesses.
+     */
+    rc = PDMDevHlpPCIInterceptConfigAccesses(pDevIns, pPciDev, ..);
+    AssertLogRelRCReturn(rc, rc);
+#endif
+
+    /*
+     * Register MMIO region.
+     */
+    AssertCompile(!(VTD_MMIO_BASE_PHYSADDR & X86_PAGE_4K_OFFSET_MASK));
+    rc = PDMDevHlpMmioCreateAndMap(pDevIns, VTD_MMIO_BASE_PHYSADDR, VTD_MMIO_SIZE, iommuIntelMmioWrite, iommuIntelMmioRead,
+                                   IOMMMIO_FLAGS_READ_DWORD_QWORD | IOMMMIO_FLAGS_WRITE_DWORD_QWORD_ZEROED,
+                                   "Intel-IOMMU", &pThis->hMmio);
+    AssertRCReturn(rc, rc);
+
     return VERR_NOT_IMPLEMENTED;
 }

trunk/src/VBox/Devices/Bus/DevIommuIntel.h

@@ -36 +36 @@
 
 /** The MMIO base address of the DMAR unit (taken from real hardware). */
-#define VTD_MMIO_BASE_ADDR                          0xfed90000
-
+#define VTD_MMIO_BASE_PHYSADDR                      UINT64_C(0xfed90000)
+/** The size of the MMIO region (in bytes). */
+#define VTD_MMIO_SIZE                               4096
 
 #endif /* !VBOX_INCLUDED_SRC_Bus_DevIommuIntel_h */