[Qemu-devel] [PATCH 1/3] Add new range above 4GB in _CRS table

[Alexey Korolev]

Since Windows is using CRS table for PCI resource allocation, this patch 
allows Windows
guests to work with PCI devices when PCI BAR allocation is above 4GB.
This also might be helpful on Linux when use_crs kernel boot option is set.

Michael I've added you to signed-off if you don't mind.

Signed-off-by: Alexey Korolev <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
 src/acpi-dsdt.dsl |    7 +++++
 src/acpi-dsdt.hex |   66 
+++++++++++++++++++++++++++++++++++++++++++++--------
 src/config.h      |    2 +
 3 files changed, 65 insertions(+), 10 deletions(-)

diff --git a/src/acpi-dsdt.dsl b/src/acpi-dsdt.dsl
index 7082b65..c17e947 100644
--- a/src/acpi-dsdt.dsl
+++ b/src/acpi-dsdt.dsl
@@ -175,6 +175,13 @@ DefinitionBlock (
                     0x00000000,         // Address Translation Offset
                     0x1EC00000,         // Address Length
                     ,, , AddressRangeMemory, TypeStatic)
+                QWordMemory (ResourceProducer, PosDecode, MinFixed, 
MaxFixed, Cacheable, ReadWrite,
+                    0x00000000,          // Address Space Granularity
+                    0x8000000000,        // Address Range Minimum
+                    0xFFFFFFFFFF,        // Address Range Maximum
+                    0x00000000,          // Address Translation Offset
+                    0x8000000000,        // Address Length
+                    ,, , AddressRangeMemory, TypeStatic)
             })
         }
     }
diff --git a/src/acpi-dsdt.hex b/src/acpi-dsdt.hex
index 5dc7bb4..fe4c17e 100644
--- a/src/acpi-dsdt.hex
+++ b/src/acpi-dsdt.hex
@@ -3,12 +3,12 @@ static unsigned char AmlCode[] = {
 0x53,
 0x44,
 0x54,
-0xd3,
-0x10,
+0x1,
+0x11,
 0x0,
 0x0,
 0x1,
-0x2d,
+0xe,
 0x42,
 0x58,
 0x50,
@@ -110,16 +110,16 @@ static unsigned char AmlCode[] = {
 0x47,
 0x42,
 0x10,
-0x44,
-0x81,
+0x42,
+0x84,
 0x5f,
 0x53,
 0x42,
 0x5f,
 0x5b,
 0x82,
-0x4c,
-0x80,
+0x4a,
+0x83,
 0x50,
 0x43,
 0x49,
@@ -2064,10 +2064,10 @@ static unsigned char AmlCode[] = {
 0x52,
 0x53,
 0x11,
-0x42,
-0x7,
+0x40,
+0xa,
 0xa,
-0x6e,
+0x9c,
 0x88,
 0xd,
 0x0,
@@ -2176,6 +2176,52 @@ static unsigned char AmlCode[] = {
 0x0,
 0xc0,
 0x1e,
+0x8a,
+0x2b,
+0x0,
+0x0,
+0xc,
+0x3,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x80,
+0x0,
+0x0,
+0x0,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x80,
+0x0,
+0x0,
+0x0,
 0x79,
 0x0,
 0x10,
diff --git a/src/config.h b/src/config.h
index b0187a4..236f2e9 100644
--- a/src/config.h
+++ b/src/config.h
@@ -47,6 +47,8 @@

 #define BUILD_PCIMEM_START        0xe0000000
 #define BUILD_PCIMEM_END          0xfec00000    /* IOAPIC is mapped at */
+#define BUILD_PCIMEM_64_START     0x8000000000LL
+#define BUILD_PCIMEM_64_END       0x10000000000LL

 #define BUILD_IOAPIC_ADDR         0xfec00000
 #define BUILD_HPET_ADDRESS        0xfed00000
--
1.7.5.4