@@ -132,7 +132,7 @@ DefinitionBlock (
B0EJ, 32,
}
- Name (_CRS, ResourceTemplate ()
+ Name (CRES, ResourceTemplate ()
{
WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
0x0000, // Address Space Granularity
@@ -174,15 +174,47 @@ DefinitionBlock (
0xFEBFFFFF, // Address Range Maximum
0x00000000, // Address Translation Offset
0x1EC00000, // Address Length
- ,, , AddressRangeMemory, TypeStatic)
+ ,, PW32, 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)
+ ,, PW64, AddressRangeMemory, TypeStatic)
})
+ Method (_INI, 0)
+ {
+ Store (\_SB.PCI0.ISA.FWC.FWCB(0x1a, 64), Local0)
+ CreateQWordField (Local0, 0, QW0)
+ CreateQWordField (Local0, 8, QW1)
+ CreateQWordField (Local0, 16, QW2)
+ CreateQWordField (Local0, 24, QW3)
+
+ /* 32bit pci io window */
+ If (LAnd (LNotEqual(QW0, 0), LNotEqual(QW1, 0))) {
+ CreateDWordField (CRES,\_SB.PCI0.PW32._MIN, PS32)
+ CreateDWordField (CRES,\_SB.PCI0.PW32._MAX, PE32)
+ CreateDWordField (CRES,\_SB.PCI0.PW32._LEN, PL32)
+ Store (QW0, PS32)
+ Store (QW1, PE32)
+ Subtract (QW1, QW0, PL32)
+ }
+
+ /* 64bit pci io window */
+ If (LAnd (LNotEqual(QW2, 0), LNotEqual(QW3, 0))) {
+ CreateQWordField (CRES,\_SB.PCI0.PW64._MIN, PS64)
+ CreateQWordField (CRES,\_SB.PCI0.PW64._MAX, PE64)
+ CreateQWordField (CRES,\_SB.PCI0.PW64._LEN, PL64)
+ Store (QW2, PS64)
+ Store (QW3, PE64)
+ Subtract (QW3, QW2, PL64)
+ }
+ }
+ Method (_CRS, 0)
+ {
+ Return (CRES)
+ }
}
}
This patch makes the pci ressources runtime configurable. The patch fetches the pci window information from the qemu firmware config interface and in case valid data is found there the ressource entries are updated accordingly. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- src/acpi-dsdt.dsl | 38 +++++++++++++++++++++++++++++++++++--- 1 files changed, 35 insertions(+), 3 deletions(-)