genode

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History

Christian Helmuth 1c79c95868 acpi_drv: skip tables outside predefined region With this fix, the driver no longer aborts on the Tigerlake notebook and just skips the out-of-region ACPI table. Issue #4452 is not fixed by this commit, but in this specific case the table is not used anyway.		2022-04-13 08:08:00 +02:00
..
spec/x86	os: avoid implicit conversions	2021-12-17 15:04:45 +01:00
acpi.cc	acpi_drv: skip tables outside predefined region	2022-04-13 08:08:00 +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: skip tables outside predefined region	2022-04-13 08:08:00 +02:00
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">
!  ...