genode

mirror of https://github.com/genodelabs/genode.git synced 2025-01-22 12:28:02 +00:00

History

Norman Feske e28709d54d acpi_drv: use expanding reporter This makes the driver work on newer machines that produce reports larger than 16 KiB. E.g., Sculpt OS boots successfully on a Lenovo P53s laptop now.		2021-04-20 12:10:58 +02:00
..
spec/x86	drivers/acpi: provide plain SMBIOS table as report	2019-08-13 12:02:03 +02:00
acpi.cc	acpi_drv: use expanding reporter	2021-04-20 12:10:58 +02:00
acpi.h	os: avoid using deprecated APIs	2019-01-30 13:49:54 +01:00
efi_system_table.h	drivers/acpi: provide plain SMBIOS table as report	2019-08-13 12:02:03 +02:00
main.cc	acpi_drv: report SMBIOS after ACPI info	2019-08-28 14:22:33 +02:00
memory.h	acpi_drv: reduce capability quota requirements	2019-11-19 14:23:54 +01:00
README	Increase RAM quota of ACPI driver to 4M	2019-08-13 12:02:03 +02:00
smbios_table_reporter.cc	smbios.h: move to os/include/smbios	2019-11-19 14:54:12 +01:00
smbios_table_reporter.h	drivers/acpi: provide plain SMBIOS table as report	2019-08-13 12:02:03 +02:00

README

This directory contains an implementation of a simple ACPI parser

Behavior
--------

This server should be used when using a kernel (like Fiasco.OC, Nova,
base_hw x86_64) that takes advantage of x86's APIC. The server traverses the
ACPI tables and reports the interrupt line of devices within the PCI config
space of GSIs found in the ACPI tables. The 'MADT' table is parsed by the
server as well, enabling clients to use the correct IRQ when
'Interrupt Override' structures are found within the table. All information
are reported to a report_rom service as "acpi" report. The report can be
consumed by any interested party, e.g. the platform driver. Please consult
the platform driver README for more details.

Usage
-----

!<start name="acpi_drv">
!  <resource name="RAM" quantum="4M"/>
!</start>
!
!<start name="report_rom">
!  <resource name="RAM" quantum="2M"/>
!  <provides>
!    <service name="ROM" />
!    <service name="Report" />
!  </provides>
!  <config>
!    <policy label="platform_drv -> acpi" report="acpi_drv -> acpi"/>
!  </config>
!</start>
!
!<start name="platform_drv">
!  ...