Changeset 106352 in vbox for trunk/include

Timestamp:

Oct 16, 2024 11:36:33 AM (7 months ago)

Author:

vboxsync

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

165165

Message:

Devices/EFI/Firmware: Expose ACPI tables if available, bugref:10733

This requires changing the VBox descriptor slightly to accomodate for the fact that
the XSDP will be located at the end of the ACPI region but the start + size of the
whole region are required for setting up the identity mapped page tables and have this region
covered in the address space. Doesn't need bumping the version because older firmware never
exposed ACPI tables.

File:

• trunk/include/VBox/platforms/vbox-armv8.h (modified) (2 diffs)

trunk/include/VBox/platforms/vbox-armv8.h

@@ -66 +66 @@
     /** Size of the FDT in bytes, 0 if not available. */
     uint64_t                    cbFdt;
-    /** Offset to the RDSP/XSDP table for ACPI from the start of this descriptor, 0 if not available. */
-    int64_t                     i64OffAcpiXsdp;
-    /** Size of the RDSP/XSDP table, 0 if not available. */
-    uint64_t                    cbAcpiXsdp;
+    /** Offset to the start of the ACPI table region from the start of this descriptor, 0 if not available. */
+    int64_t                     i64OffAcpi;
+    /** Size of the ACPI region in bytes, 0 if not available. */
+    uint64_t                    cbAcpi;
     /** Offset to the start of the UEFI ROM region from the start of this descriptor, 0 if not available (doesn't make much sense though). */
     int64_t                     i64OffUefiRom;
@@ -82 +82 @@
     /** Size of the MMIO32 region in bytes, 0 if not available. */
     uint64_t                    cbMmio32;
+    /** Offset to the RDSP/XSDP table for ACPI from the start of this descriptor, 0 if not available. */
+    int64_t                     i64OffAcpiXsdp;
+    /** Size of the RDSP/XSDP table, 0 if not available. */
+    uint64_t                    cbAcpiXsdp;
     /** Padding to 64KiB. */
-    uint8_t                     abPadding[_64K - 4 * sizeof(uint32_t) - 12 * sizeof(uint64_t)];
+    uint8_t                     abPadding[_64K - 4 * sizeof(uint32_t) - 14 * sizeof(uint64_t)];
 } VBOXPLATFORMARMV8;
 AssertCompileSize(VBOXPLATFORMARMV8, _64K);