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[Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virt
From: |
Benjamin Herrenschmidt |
Subject: |
[Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO |
Date: |
Sun, 13 Feb 2011 08:00:24 +1100 |
On Sat, 2011-02-12 at 18:59 +0200, Blue Swirl wrote:
>
> Actually I don't quite understand the need for vty layer, why not use
> the chardev here directly?
I'm not sure what you mean here...
Basically, the interface presented to guests is sPAPR compliant, so
virtual devices come with a bunch of stuff such as standard device-tree
properties, but also hcalls for interrupt control etc... which are
common to most of these guys including vty.
Some of it isn't present in David current patch just yet, but I don't
see how using an existing chardev would provide the same semantics,
especially when we start adding interrupts etc...
Also eventually, VTY's will be hot-pluggable (when we get to do that)
and will use the same mechanisms as the other sPAPR VIO devices for
that.
Cheers,
Ben.
- [Qemu-devel] Re: [PATCH 13/15] Add POWER7 support for ppc, (continued)
[Qemu-devel] [PATCH 14/15] Start implementing pSeries logical partition machine, David Gibson, 2011/02/12
[Qemu-devel] [PATCH 15/15] Implement the bus structure for PAPR virtual IO, David Gibson, 2011/02/12
- [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Alexander Graf, 2011/02/12
- [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Blue Swirl, 2011/02/12
- [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO,
Benjamin Herrenschmidt <=
- [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Blue Swirl, 2011/02/12
- [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Benjamin Herrenschmidt, 2011/02/12
- [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Blue Swirl, 2011/02/13
- Re: [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, David Gibson, 2011/02/13
- Re: [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Blue Swirl, 2011/02/13
- Re: [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Benjamin Herrenschmidt, 2011/02/13
- Re: [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Anthony Liguori, 2011/02/13
- Re: [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Alexander Graf, 2011/02/13
- Re: [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Anthony Liguori, 2011/02/13
Re: [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO, Blue Swirl, 2011/02/13