On Tue, Jan 24, 2017 at 08:28:40PM +0000, Ard Biesheuvel wrote:
On 13 January 2017 at 17:34, Ard Biesheuvel ard.biesheuvel@linaro.org wrote:
Linux for arm64 v4.10 and later will complain if the ECAM config space is not reserved in the ACPI namespace:
acpi PNP0A08:00: [Firmware Bug]: ECAM area [mem 0x3f000000-0x3fffffff] not reserved in ACPI namespace
The rationale is that OSes that don't consume the MCFG table should still be able to infer that the PCI config space MMIO region is occupied.
So update the ACPI tables to add this reservation.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel ard.biesheuvel@linaro.org
Ping?
Looks entirely plausible to me, but I'd prefer to see a review from one of the ACPI people on cc as well.
Graeme?
/ Leif
Platforms/AMD/Styx/AcpiTables/Dsdt.asl | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/Platforms/AMD/Styx/AcpiTables/Dsdt.asl b/Platforms/AMD/Styx/AcpiTables/Dsdt.asl index 7edec3d1ec28..3bfa26acea07 100644 --- a/Platforms/AMD/Styx/AcpiTables/Dsdt.asl +++ b/Platforms/AMD/Styx/AcpiTables/Dsdt.asl @@ -646,6 +646,14 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2, "AMDINC", "SEATTLE ", 3) Return (RBUF) /* _SB_.PCI0._CRS.RBUF */ } // Method(_CRS)
Device (RES0){Name (_HID, "PNP0C02")Name (_CRS, ResourceTemplate (){Memory32Fixed (ReadWrite, 0xF0000000, 0x8000000)})} Name (SUPP, 0x00) Name (CTRL, 0x00) Method (_OSC, 4, NotSerialized) // _OSC: Operating System Capabilities-- 2.7.4