[Qemu-devel] PCI hotplug controller emulation

[Qemu-devel] PCI hotplug controller emulation

[Zhai, Edwin]

Hello,

I have cooked up a patch of ACPI PCI hotplug controller emulation, which can be 
extended to support hotplug of virtual PCI device, say ne2000 NIC.

Are you guys interested to integrate this device emulation?

BTW, modification of ACPI DSDT table is required, but QEMU reuse the binary from 
Bochs. I don't know how to handle such issue in QEMU.

Thanks,

-- 
best rgds,
edwin

[Qemu-devel] PCI hotplug controller emulation

[Zhai, Edwin]

Hello,

I have cooked up a patch of ACPI PCI hotplug controller emulation, which can be 
extended to support hotplug of virtual PCI device, say ne2000 NIC.

Are you guys interested to integrate this device emulation?

BTW, modification of ACPI DSDT table is required, but QEMU reuse the binary from 
Bochs. I don't know how to handle such issue in QEMU.

Thanks,

-- 
best rgds,
edwin

Re: [Qemu-devel] PCI hotplug controller emulation

[Paul Brook]

> BTW, modification of ACPI DSDT table is required, but QEMU reuse the binary
> from Bochs. I don't know how to handle such issue in QEMU.

Get the changes merged into upstream bochs source.

Paul

Re: [Qemu-devel] PCI hotplug controller emulation

[Alexander Graf]

On May 16, 2008, at 12:11 PM, Zhai, Edwin wrote:

> Hello,
>
> I have cooked up a patch of ACPI PCI hotplug controller emulation,  
> which can be
> extended to support hotplug of virtual PCI device, say ne2000 NIC.

KVM also has such a feature. It might be a good idea to look at that  
implementation and see how things differ between the approaches and  
maybe get yours into KVM too.

>
>
> Are you guys interested to integrate this device emulation?
>
> BTW, modification of ACPI DSDT table is required, but QEMU reuse the  
> binary from
> Bochs. I don't know how to handle such issue in QEMU.

Best idea here would be to send the patches to the bochs list.  
Alternatively there is a diff file against the bochs bios in the qemu  
svn too. Getting things upstream with bochs is preferred though.


Alex

Re: [Qemu-devel] PCI hotplug controller emulation

[Zhai, Edwin]

On Fri, May 16, 2008 at 01:17:41PM +0200, Alexander Graf wrote:
> >
> >
> >Are you guys interested to integrate this device emulation?
> >
> >BTW, modification of ACPI DSDT table is required, but QEMU reuse the  
> >binary from
> >Bochs. I don't know how to handle such issue in QEMU.
> 
> Best idea here would be to send the patches to the bochs list.  
> Alternatively there is a diff file against the bochs bios in the qemu  
> svn too. Getting things upstream with bochs is preferred though.

This diff file seems to be used to keep pending changes for reference only.  
It's better to push everything into Bochs. But you know, bochs is written in 
C++, so we have to rewrite device emulation:(

> 
> 
> Alex
> 

-- 
best rgds,
edwin

Re: [Qemu-devel] PCI hotplug controller emulation

[Zhai, Edwin]

Tosatti,

I know you have a hotplug patch for KVM.
Do you have any plan to push it into QEMU upstream?
To do this, also need push the DSDT changes into Bochs.

Maybe we can co-ordinate to eliminate duplicated efforts.

On Fri, May 16, 2008 at 01:17:41PM +0200, Alexander Graf wrote:
> 
> On May 16, 2008, at 12:11 PM, Zhai, Edwin wrote:
> 
> >Hello,
> >
> >I have cooked up a patch of ACPI PCI hotplug controller emulation,  
> >which can be
> >extended to support hotplug of virtual PCI device, say ne2000 NIC.
> 
> KVM also has such a feature. It might be a good idea to look at that  
> implementation and see how things differ between the approaches and  
> maybe get yours into KVM too.
> 
> >
> >
> >Are you guys interested to integrate this device emulation?
> >
> >BTW, modification of ACPI DSDT table is required, but QEMU reuse the  
> >binary from
> >Bochs. I don't know how to handle such issue in QEMU.
> 
> Best idea here would be to send the patches to the bochs list.  
> Alternatively there is a diff file against the bochs bios in the qemu  
> svn too. Getting things upstream with bochs is preferred though.
> 
> 
> Alex
> 

-- 
best rgds,
edwin