From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Blue Swirl <blauwirbel@gmail.com>
Cc: "qemu-devel@nongnu.org List" <qemu-devel@nongnu.org>,
Paul Mackerras <paulus@samba.org>, Alexander Graf <agraf@suse.de>,
anton@samba.org, David Gibson <david@gibson.dropbear.id.au>
Subject: [Qemu-devel] Re: [PATCH 15/15] Implement the bus structure for PAPR virtual IO
Date: Sun, 13 Feb 2011 08:00:24 +1100 [thread overview]
Message-ID: <1297544424.14982.628.camel@pasglop> (raw)
In-Reply-To: <AANLkTimYxXeBuKmXKdv=ENu4ZZyDK=CEv+et568ga1Qk@mail.gmail.com>
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.
next prev parent reply other threads:[~2011-02-12 21:00 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-12 14:54 [Qemu-devel] RFC: Implement emulation of pSeries logical partitions David Gibson
2011-02-12 14:54 ` [Qemu-devel] [PATCH 01/15] Add TAGS and *~ to .gitignore David Gibson
2011-02-12 14:54 ` [Qemu-devel] [PATCH 02/15] Clean up PowerPC SLB handling code David Gibson
2011-02-12 15:17 ` [Qemu-devel] " Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 03/15] Allow qemu_devtree_setprop() to take arbitrary values David Gibson
2011-02-12 15:18 ` [Qemu-devel] " Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 04/15] Add a hook to allow hypercalls to be emulated on PowerPC David Gibson
2011-02-12 15:19 ` [Qemu-devel] " Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 05/15] Implement PowerPC slbmfee and slbmfev instructions David Gibson
2011-02-12 15:23 ` [Qemu-devel] " Alexander Graf
2011-02-13 12:46 ` David Gibson
2011-02-12 14:54 ` [Qemu-devel] [PATCH 06/15] Implement missing parts of the logic for the POWER PURR David Gibson
2011-02-12 15:25 ` [Qemu-devel] " Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 07/15] Correct ppc popcntb logic, implement popcntw and popcntd David Gibson
2011-02-12 15:27 ` [Qemu-devel] " Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 08/15] Clean up slb_lookup() function David Gibson
2011-02-12 15:30 ` [Qemu-devel] " Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 09/15] Parse SDR1 on mtspr instead of at translate time David Gibson
2011-02-12 15:37 ` [Qemu-devel] " Alexander Graf
2011-02-13 9:02 ` David Gibson
2011-02-13 12:33 ` Alexander Graf
2011-02-13 12:52 ` David Gibson
2011-02-12 14:54 ` [Qemu-devel] [PATCH 10/15] Use "hash" more consistently in ppc mmu code David Gibson
2011-02-12 15:47 ` [Qemu-devel] " Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 11/15] Better factor the ppc hash translation path David Gibson
2011-02-12 15:52 ` [Qemu-devel] " Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 12/15] Support 1T segments on ppc David Gibson
2011-02-12 15:57 ` [Qemu-devel] " Alexander Graf
2011-02-13 9:34 ` David Gibson
2011-02-13 12:37 ` Alexander Graf
2011-02-13 13:38 ` David Gibson
2011-02-12 14:54 ` [Qemu-devel] [PATCH 13/15] Add POWER7 support for ppc David Gibson
2011-02-12 16:09 ` [Qemu-devel] " Alexander Graf
2011-02-13 9:39 ` David Gibson
2011-02-13 12:37 ` Alexander Graf
2011-02-12 14:54 ` [Qemu-devel] [PATCH 14/15] Start implementing pSeries logical partition machine David Gibson
2011-02-12 16:23 ` [Qemu-devel] " Alexander Graf
2011-02-12 16:40 ` Blue Swirl
2011-02-12 20:54 ` Benjamin Herrenschmidt
2011-02-12 14:54 ` [Qemu-devel] [PATCH 15/15] Implement the bus structure for PAPR virtual IO David Gibson
2011-02-12 16:47 ` [Qemu-devel] " Alexander Graf
2011-02-12 16:59 ` Blue Swirl
2011-02-12 21:00 ` Benjamin Herrenschmidt [this message]
2011-02-12 22:52 ` Blue Swirl
2011-02-12 23:15 ` Benjamin Herrenschmidt
2011-02-13 8:08 ` Blue Swirl
2011-02-13 11:12 ` David Gibson
2011-02-13 12:15 ` Blue Swirl
2011-02-13 16:12 ` Benjamin Herrenschmidt
2011-02-13 15:08 ` Anthony Liguori
2011-02-13 15:56 ` Alexander Graf
2011-02-13 16:46 ` Anthony Liguori
2011-02-13 18:29 ` Blue Swirl
2011-02-13 19:32 ` Anthony Liguori
2011-02-13 23:33 ` David Gibson
2011-02-13 23:30 ` David Gibson
2011-02-13 12:31 ` Alexander Graf
2011-02-13 12:59 ` Blue Swirl
2011-02-13 16:07 ` Benjamin Herrenschmidt
2011-02-13 16:48 ` Anthony Liguori
2011-02-13 18:19 ` Benjamin Herrenschmidt
2011-02-13 11:14 ` David Gibson
2011-02-13 12:40 ` Alexander Graf
2011-02-13 12:44 ` David Gibson
2011-02-13 13:09 ` Alexander Graf
2011-02-13 15:14 ` Anthony Liguori
2011-02-13 16:17 ` Benjamin Herrenschmidt
2011-02-13 16:52 ` Anthony Liguori
2011-02-13 18:21 ` Benjamin Herrenschmidt
2011-02-13 11:09 ` David Gibson
2011-02-13 12:38 ` Alexander Graf
2011-02-14 4:16 ` [Qemu-devel] RFC: Implement emulation of pSeries logical partitions FUJITA Tomonori
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