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RE: [Qemu-devel] ACPI support
From: |
Yu, Ke |
Subject: |
RE: [Qemu-devel] ACPI support |
Date: |
Wed, 9 Nov 2005 02:12:27 +0800 |
This is an interesting topic, however, not an easy task :)
The patch is for APIC support, and only contains one ACPI MADT entry, which is
far from full ACPI support. So you may like to call it an APIC patch rather
than ACPI patch.
If you want to test power management of embedded system with qemu, IMHO, there
will be a lot of work to do:
* Implement ACPI hardware in QEMU, which includes
- General ACPI hardware in chipset
- Specific ACPI hardware in every device
* Add ACPI table in BIOS.
Best Regards
Yu Ke
----------------
Intel Opensource Technology Center
________________________________________
From: address@hidden [mailto:address@hidden On Behalf Of Shahar Livne
Sent: 2005年11月9日 1:40
To: address@hidden
Subject: [Qemu-devel] ACPI support
Hi there,
I use qemu for development of embedded systems. Lately I had a need to check
ACPI related kernel module, but I have seen that there isn't any support in the
version 0.7.1 that I use.
I have checked also 0.7.2 and found no support.
A patch that I have found on www.h7.dion.ne.jp/~qemu-win/ for x86_64 by
F.Navara seemed like close enough.
I have applied it (after adaptation, since it didn't go smooth for 0.7.1 or
0.7.2).
The system booted, but running dmesg | grep ACPI inside the embedded system on
the qemu gave:
ACPI: RSDP (v000 QEMU ) @
0x000e0000
ACPI: Invalid RSDT checksum
ACPI: Subsystem revision 20050211
ACPI: Interpreter disabled.
I use the i386 emulation, and the kernel running inside is 2.6.11
Has someone any experience with ACPI in qemu?
Thanks,
Shahar Livne
LivneX - Open Source Development and Services
http://livnex.com