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Re: [Qemu-devel] Qemu Guest Tools

From: Oliver Gerlich
Subject: Re: [Qemu-devel] Qemu Guest Tools
Date: Sat, 05 Mar 2005 11:44:00 +0100
User-agent: Mozilla Thunderbird 1.0 (X11/20050116)

Nathan Kunkee schrieb:

Another way to fix this, and the next concern on vm save/load, is to develop an APM or ACPI device. There is a standard interface between the hardware and the OS, almost all OS's now support a version of APM or ACPI, and the OS knows to reinitialize various parts of the hardware after certain events. This would simplify the question of special instructions or unused IO port. In a way, it would allow the emulator to be treated like a laptop, where the user can tell it to suspend or sleep, and when to wake up again. Since the OS has a driver for APM, it would be aware of these events, reinitialize devices (RTC, NIC), and Qemu would not be responsible for as many internal details.

My humble $0.02 on the issue....

ACPI support in Qemu would be nice; but loadvm is useful for those guest OSes that don't support ACPI or sleep states. So in my opinion loadvm should not be replaced by ACPI, but it should be usable in those cases where ACPI or sleep states are not available (eg. Win9x, DOS).


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