Re: [Qemu-devel] [PATCH][RFC v2 3/7] vl: create power chip device

[li guang]

在 2013-04-16二的 15:45 -0500，Anthony Liguori写道：
> Paolo Bonzini <address@hidden> writes:
> 
> > Il 10/04/2013 15:41, guang li ha scritto:
> >> Yes, you're right.
> >> The motivation is I want to implement a device
> >> called EC which is a notion from laptop for QEMU,
> >> EC has some main functions, like keyboard, mouse,
> >> low-speed device control(I2C), special ACPI space,
> >>  i8042 and ps2 mouse has been done,  power control
> >> was left, so I tried to add this.
> >
> > Do you have a datasheet?  Have you looked at hw/acpi/?
> 
> http://www.coreboot.org/Embedded_controller
> 
> Has more than you probably ever wanted to know about ECs.
> 
> I don't see much reason to model an EC in QEMU. 
> It's only visible to firmware (at least on the PC)

No, it's certainly visible to OS.
you can get more from coreboot source code.

>  so there's little benefit to modeling.

but it is very important to laptop.

> 
> Regards,
> 
> Anthony Liguori
> 
> >
> > Paolo
>