Only 512M is left for MMIO below 4G and that are used by PCI, BIOS etc.
Other components also reserve regions from their internal usage, e.g,
[0xFED00000, 0xFED00000 + 0x400) is reserved for HPET
Switch SSDT to 64 bit to use the huge free room above 4G. In the later
patches, we will dynamical allocate free space within this region which
is used by NVDIMM _DSM method
Signed-off-by: Xiao Guangrong <guangrong.xiao@xxxxxxxxxxxxxxx>
---
hw/i386/acpi-build.c | 4 ++--
hw/i386/acpi-dsdt.dsl | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 00818b9..6a1ab09 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1348,7 +1348,7 @@ build_ssdt(GArray *table_data, GArray *linker,
g_array_append_vals(table_data, ssdt->buf->data, ssdt->buf->len);
build_header(linker, table_data,
(void *)(table_data->data + table_data->len - ssdt->buf->len),
- "SSDT", ssdt->buf->len, 1);
+ "SSDT", ssdt->buf->len, 2);
free_aml_allocator();
}
@@ -1586,7 +1586,7 @@ build_dsdt(GArray *table_data, GArray *linker, AcpiMiscInfo *misc)
memset(dsdt, 0, sizeof *dsdt);
build_header(linker, table_data, dsdt, "DSDT",
- misc->dsdt_size, 1);
+ misc->dsdt_size, 2);
}
static GArray *
diff --git a/hw/i386/acpi-dsdt.dsl b/hw/i386/acpi-dsdt.dsl
index a2d84ec..5cd3f0e 100644
--- a/hw/i386/acpi-dsdt.dsl
+++ b/hw/i386/acpi-dsdt.dsl
@@ -22,7 +22,7 @@ ACPI_EXTRACT_ALL_CODE AcpiDsdtAmlCode
DefinitionBlock (
"acpi-dsdt.aml", // Output Filename
"DSDT", // Signature
- 0x01, // DSDT Compliance Revision
+ 0x02, // DSDT Compliance Revision
"BXPC", // OEMID
"BXDSDT", // TABLE ID
0x1 // OEM Revision
--
2.1.0
--
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