This block is mapped into memory space, using the Root Complex Base Address (RCBA) register of the PCI-to-LPC bridge. Accesses in this space must be limited to 32-(DW) bit quantities. Burst accesses are not allowed.
All Chipset Configuration Registers are located in this 16KiB space.
Signed-off-by: Paulo Alcantara pcacjr@zytor.com --- v1 -> v2: * s/PDRC/CCR/ for clarity and match ICH9 spec * remove unnecessary OperationRegion for RCRB
v2 -> v3: (no changes)
v3 -> v4: * quote RCRB description from ICH9 spec to commit log * fix indentation issue in _CRS() method declaration * create hw/i386/ich9-cc.h for chipset configuration register values and use them in ASL --- hw/i386/q35-acpi-dsdt.dsl | 16 ++++++++++++++++ include/hw/i386/ich9-cc.h | 31 +++++++++++++++++++++++++++++++ tests/acpi-test-data/q35/DSDT | Bin 7666 -> 7723 bytes 3 files changed, 47 insertions(+) create mode 100644 include/hw/i386/ich9-cc.h
diff --git a/hw/i386/q35-acpi-dsdt.dsl b/hw/i386/q35-acpi-dsdt.dsl index 16eaca3..512c220 100644 --- a/hw/i386/q35-acpi-dsdt.dsl +++ b/hw/i386/q35-acpi-dsdt.dsl @@ -114,6 +114,22 @@ DefinitionBlock ( } }
+#include "hw/i386/ich9-cc.h" + +/**************************************************************** + * Chipset Configuration Registers + ****************************************************************/ +Scope(_SB.PCI0) { + Device (CCR) { + Name (_HID, EISAID("PNP0C02")) + Name (_UID, 1) + + Name (_CRS, ResourceTemplate() { + Memory32Fixed(ReadWrite, RCBA_BASE_ADDR, RCRB_SIZE) + }) + } +} + #include "acpi-dsdt-hpet.dsl"
diff --git a/include/hw/i386/ich9-cc.h b/include/hw/i386/ich9-cc.h new file mode 100644 index 0000000..675fb7f --- /dev/null +++ b/include/hw/i386/ich9-cc.h @@ -0,0 +1,31 @@ +/* + * QEMU ICH9 Chipset Configuration Registers + * + * Copyright (c) 2015 Paulo Alcantara pcacjr@zytor.com + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef HW_ICH9_CC_H +#define HW_ICH9_CC_H + +#define RCBA_BASE_ADDR 0xfed1c000 +#define RCRB_SIZE 0x00004000 + +#endif /* HW_ICH9_CC_H */ diff --git a/tests/acpi-test-data/q35/DSDT b/tests/acpi-test-data/q35/DSDT index 4723e5954dccb00995ccaf521b7daf6bf15cf1d4..f3bda7b54ea6d669b1498d9380e7781207fb6e49 100644 GIT binary patch delta 81 zcmexlz1oJ$CD<iITaJN&F>xbTJfnq$UVN}qe1Nm3L3ERjvvW{9N4$rp3y<Rk9wv_X lP)`>|j(F#wU_n7HzBWz<Mur0y|1mf)FjO*Z&S3140RVI`6(s-w
delta 24 gcmZ2&^U0daCD<k8lPm)R<DrdQ@r;`nF?PxT0Bl$YHUIzs