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[Qemu-devel] [PATCH v2 0/5] add ACPI node for fw_cfg on pc and arm
From: |
Gabriel L. Somlo |
Subject: |
[Qemu-devel] [PATCH v2 0/5] add ACPI node for fw_cfg on pc and arm |
Date: |
Mon, 14 Sep 2015 10:57:28 -0400 |
New since v1:
- expose control register size (suggested by Marc MarĂ)
- leaving out _UID and _STA fields (thanks Shannon & Igor)
- using "QEMU0002" as the value of _HID (thanks Michael)
- added documentation blurb to docs/specs/fw_cfg.txt
(mainly to record usage of the "QEMU0002" string with fw_cfg).
Thanks,
--Gabriel
> This series adds a fw_cfg device node to the SSDT (on pc), or to the
> DSDT (on arm).
>
> - Patch 1/3 moves (and renames) the BIOS_CFG_IOPORT (0x510)
> define from pc.c to pc.h, so that it could be used from
> acpi-build.c in patch 2/3.
>
> - Patch 2/3 adds a fw_cfg node to the pc SSDT.
>
> - Patch 3/3 adds a fw_cfg node to the arm DSDT.
>
> I made up some names - "FWCF" for the node name, and "FWCF0001"
> for _HID; no idea whether that's appropriate, or how else I should
> figure out what to use instead...
>
> Also, using scope "\\_SB", based on where fw_cfg shows up in the
> output of "info qtree". Again, if that's wrong, please point me in
> the right direction.
>
> Re. 3/3 (also mentioned after the commit blurb in the patch itself),
> I noticed none of the other DSDT entries contain a _STA field, wondering
> why it would (not) make sense to include that, same as on the PC.
Gabriel L. Somlo (5):
fw_cfg: expose control register size in fw_cfg.h
pc: fw_cfg: move ioport base constant to pc.h
acpi: pc: add fw_cfg device node to ssdt
acpi: arm: add fw_cfg device node to dsdt
fw_cfg: document ACPI device node information
docs/specs/fw_cfg.txt | 9 +++++++++
hw/arm/virt-acpi-build.c | 13 +++++++++++++
hw/i386/acpi-build.c | 20 ++++++++++++++++++++
hw/i386/pc.c | 5 ++---
hw/nvram/fw_cfg.c | 8 +++++---
include/hw/i386/pc.h | 2 ++
include/hw/nvram/fw_cfg.h | 3 +++
7 files changed, 54 insertions(+), 6 deletions(-)
--
2.4.3
- [Qemu-devel] [PATCH v2 0/5] add ACPI node for fw_cfg on pc and arm,
Gabriel L. Somlo <=
[Qemu-devel] [PATCH v2 1/5] fw_cfg: expose control register size in fw_cfg.h, Gabriel L. Somlo, 2015/09/14
[Qemu-devel] [PATCH v2 5/5] fw_cfg: document ACPI device node information, Gabriel L. Somlo, 2015/09/14
[Qemu-devel] [PATCH v2 3/5] acpi: pc: add fw_cfg device node to ssdt, Gabriel L. Somlo, 2015/09/14