1456 add acpi support for kvmtool v4 #2475
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Add a macro that specifies the format for printing CM_OBJECT_ID. This allows to print the CM_OBJECT_ID is a consistent way in the output logs. Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Parse the Pmu interrupts if a pmu compatible node is present, and populate the MADT GicC structure accordingly. Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
In ACPI 6.4, s6.2.13, _PRT objects describing PCI legacy interrupts can be defined following 2 models. In the first model, _PRT entries reference link devices. Link devices then describe interrupts. This allows to dynamically modify interrupts through _SRS and _PRS objects and to choose exactly the interrupt type (level/edge triggered, active high/low). In the second model, interrupt numbers are described in the _PRT entry. The interrupt type is then assumed by the OS. AmlAddPrtEntry() currently only handles the first model. Make changes to also handle the second model. Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
In ACPI 6.4, s6.2.13, _PRT objects describing PCI legacy interrupts can be defined following 2 models. In the first model, _PRT entries reference link devices. Link devices then describe interrupts. This allows to dynamically modify interrupts through _SRS and _PRS objects and to choose exactly the interrupt type (level/edge triggered, active high/low). In the second model, interrupt numbder are described in the _PRT entry. The interrupt type is then assumed by the OS. The Arm BSA, sE.6 "Legacy interrupts" states that PCI legacy interrupts must be converted to SPIs, and programmed level-sensitive, active high. Thus any OS must configure interrupts as such and there is no need to specify the interrupt type. Plus it is not possible to dynamically configure PCI interrupts. Thus remove the link device generation and use the second model for _PRT. Suggested-by: Ard Biesheuvel <ardb+tianocore@kernel.org> Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
The cpsell tool checks for unknown words in the upstream CI. Add some new words to the list of exceptions. Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Most ACPI tables for Kvmtool firmware are dynamically generated. The AML code is also generated at runtime for most components in appropriate SSDTs. Although there may not be much to describe in the DSDT, the DSDT table is mandatory. Therefore, add an empty stub for DSDT. Signed-off-by: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Add Configuration Manager to enable ACPI tables for Kvmtool firmware. The Configuration Manager for Kvmtool uses the DT Hardware Information Parser module (FdtHwInfoParser) to parse the DT provided by Kvmtool. The FdtHwInfoParser parses the DT and invokes the callback function HW_INFO_ADD_OBJECT to add the Configuration Manager objects to the Platform Information repository. The information for some Configuration Manager objects may not be available in the DT. Such objects are initialised locally by the Configuration Manager. Support for the following ACPI tables is provided: - DBG2 - DSDT (Empty stub) - FADT - GTDT - MADT - SPCR - SSDT (Cpu Hierarchy) - SSDT (Pcie bus) Signed-off-by: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
A Configuration Manager that uses the Dynamic Tables framework to generate ACPI tables for Kvmtool Guests has been provided. This Configuration Manager uses the FdtHwInfoParser module to parse the Kvmtool Device Tree and generate the required Configuration Manager objects for generating the ACPI tables. Therefore, enable ACPI table generation for Kvmtool. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3742 Signed-off-by: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Acpiview is a command line tool allowing to display, dump, or check installed ACPI tables. Add a 'ACPIVIEW_ENABLE' switch to enable it on an ArmVirt platform. The switch is set for the ArmVirtKvmTool platform. Signed-off-by: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
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