ACPI(Advanced Configuration and Power Interface), is a Power Management and configuration standard allowing the operating system to control the amount of power each device is given (allowing it to put certain devices on standby or power-off for example). It is also used to control and/or check thermal zones (temperature sensors, fan speeds, etc), battery levels, PCI IRQ routing, CPUs, NUMA domains and many other things.
This series adds ACPI support to QEMU targets. Currently, the Linux kernel graphics console does not work with this series.
Changes in v6: - Incoporated Bin's review comments.
Saket Sinha (3): x86: Generate a valid ACPI table x86: Add ACPI table support to QEMU x86: Add DSDT table for supporting ACPI on QEMU
arch/x86/Kconfig | 9 + arch/x86/cpu/qemu/Makefile | 1 + arch/x86/cpu/qemu/acpi.c | 179 ++++++++++++++ arch/x86/cpu/qemu/acpi/cpu-hotplug.asl | 80 ++++++ arch/x86/cpu/qemu/acpi/dbug.asl | 25 ++ arch/x86/cpu/qemu/acpi/hpet.asl | 31 +++ arch/x86/cpu/qemu/acpi/isa.asl | 102 ++++++++ arch/x86/cpu/qemu/acpi/pci-crs.asl | 61 +++++ arch/x86/cpu/qemu/dsdt.asl | 412 +++++++++++++++++++++++++++++++ arch/x86/include/asm/acpi_table.h | 390 +++++++++++++++++++++++++++++ arch/x86/lib/Makefile | 1 + arch/x86/lib/acpi_table.c | 436 +++++++++++++++++++++++++++++++++ arch/x86/lib/tables.c | 5 + scripts/Makefile.lib | 11 + 14 files changed, 1743 insertions(+) create mode 100644 arch/x86/cpu/qemu/acpi.c create mode 100644 arch/x86/cpu/qemu/acpi/cpu-hotplug.asl create mode 100644 arch/x86/cpu/qemu/acpi/dbug.asl create mode 100644 arch/x86/cpu/qemu/acpi/hpet.asl create mode 100644 arch/x86/cpu/qemu/acpi/isa.asl create mode 100644 arch/x86/cpu/qemu/acpi/pci-crs.asl create mode 100644 arch/x86/cpu/qemu/dsdt.asl create mode 100644 arch/x86/include/asm/acpi_table.h create mode 100644 arch/x86/lib/acpi_table.c