From: Avi Kivity <avi@qumranet.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: lguest@ozlabs.org, Dor Laor <dor.laor@qumranet.com>,
virtualization@lists.linux-foundation.org
Subject: Re: [patch 37/43] lguest: Virtio helper routines for a descriptor ringbuffer implementation
Date: Tue, 02 Oct 2007 08:02:33 +0200 [thread overview]
Message-ID: <4701DEF9.6070707@qumranet.com> (raw)
In-Reply-To: <1191298867.6979.60.camel@localhost.localdomain>
Rusty Russell wrote:
> On Mon, 2007-10-01 at 14:13 +0200, Avi Kivity wrote:
>
>> Rusty Russell wrote:
>>
>>> Yes, but this is what lguest is for, to play without fixing an ABI. I
>>> fully expect incompatible tweaks before KVM causes the ABI to nail down.
>>>
>> I'm worried about users tearing down the "caution, experimental ABI,
>> will invalidate warranty" sticker from the package, selecting
>> CONFIG_EXPERIMENTAL, CONFIG_I_REALLY_MEAN_ITS_EXPERIMENTAL, and
>> CONFIG_I_DONT_CARE_IF_THIS_BLOWS_UP, not reading your blog, and running
>> 2.6.24 guests on top of 2.6.25 or vice versa.
>>
>> I want the module not to load instead of the guest blowing up.
>>
>
> Well, this is the guest side we're talking about. We can use some bogus
> vendor ID for the experimental devices so that they simply won't be
> found by the final drivers.
>
>
That works. Thanks!
--
Any sufficiently difficult bug is indistinguishable from a feature.
next prev parent reply other threads:[~2007-10-02 6:02 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-26 6:36 [patch 00/43] lguest: Patches for 2.6.24 (and patchbomb test) rusty
2007-09-26 6:36 ` [patch 01/43] lguest: lguest example launcher truncates block device file to 0 length on problems rusty
2007-09-26 6:36 ` [patch 02/43] lguest: fix modules oopsing in lguest guests rusty
2007-09-26 6:36 ` [patch 03/43] lguest: Normalize config options for guest support rusty
2007-09-26 6:36 ` [patch 04/43] lguest: Consolidate host virtualization support under Virtualization menu rusty
2007-09-26 6:36 ` [patch 05/43] lguest: Example launcher should include asm/e820.h instead of asm-i386/ rusty
2007-09-26 6:36 ` [patch 06/43] lguest: turn err into errx in lguest call sites rusty
2007-09-26 6:36 ` [patch 07/43] lguest: Use copy_to_user() not put_user for struct timespec rusty
2007-09-26 6:36 ` [patch 08/43] lguest: Lguest currently depends on 32-bit x86, not just x86 rusty
2007-09-26 6:36 ` [patch 09/43] lguest: lguest.txt update rusty
2007-09-26 6:36 ` [patch 10/43] lguest: Make lguest_launcher.h types userspace-friendly rusty
2007-09-26 6:36 ` [patch 11/43] lguest: lguest_devices belongs in lguest_bus.c: its not i386-specific rusty
2007-09-26 6:36 ` [patch 12/43] lguest: Only start khvcd when someone uses hvc_console driver rusty
2007-09-26 6:36 ` [patch 13/43] lguest: Move lguest hcalls to arch-specific header rusty
2007-09-26 6:36 ` [patch 14/43] lguest: Move lguest guest support to arch/i386 where it logically belongs rusty
2007-09-26 6:36 ` [patch 15/43] lguest: Rename switcher.S to i386_switcher.S, since its very i386-specific rusty
2007-09-26 6:36 ` [patch 16/43] lguest: Accept elf files that are valid but have sections that can not be mmaped for some reason rusty
2007-09-26 6:36 ` [patch 17/43] lguest: Introduce guest mem offset, static link example launcher rusty
2007-09-26 6:36 ` [patch 18/43] lguest: Remove fixed limit on number of guests, and lguests array rusty
2007-09-26 6:36 ` [patch 19/43] lguest: Make shadow IDT a complete IDT with 256 entries rusty
2007-09-26 6:36 ` [patch 20/43] lguest: Move i386 part of core.c to i386_core.c rusty
2007-09-26 6:36 ` [patch 21/43] lguest: Reorder guest saved regs to match hyperall order rusty
2007-09-26 6:36 ` [patch 22/43] lguest: Introduce "hcall" pointer to indicate pending hypercall rusty
2007-09-26 6:36 ` [patch 23/43] lguest: Make hypercalls arch-independent rusty
2007-09-26 6:36 ` [patch 24/43] lguest: Change example launcher to use unsigned long not u32 rusty
2007-09-26 6:36 ` [patch 25/43] lguest: Move register setup into i386_core.c rusty
2007-09-26 6:36 ` [patch 26/43] lguest: guest.h declares a struct timespec, make it include linux/time.h rusty
2007-09-26 6:36 ` [patch 27/43] lguest: Pagetables to use normal kernel types rusty
2007-09-26 6:36 ` [patch 28/43] lguest: Rename "cr3" to "gpgdir" to avoid x86-specific naming rusty
2007-09-26 6:36 ` [patch 29/43] lguest: Introduce "used_vectors" bitmap which can be used to reserve vectors rusty
2007-09-26 6:36 ` [patch 30/43] lguest: Allow guest to specify syscall vector to use rusty
2007-09-26 6:36 ` [patch 31/43] lguest: Boot with virtual == physical to get closer to native Linux rusty
2007-09-27 0:12 ` Jeremy Fitzhardinge
2007-09-27 0:53 ` [Lguest] " ron minnich
2007-09-29 13:02 ` Rusty Russell
2007-09-26 6:36 ` [patch 32/43] lguest: Virtio interface rusty
2007-10-02 9:03 ` Christian Borntraeger
2007-10-02 12:00 ` Rusty Russell
2007-10-10 8:50 ` Christian Borntraeger
2007-10-10 13:43 ` Glauber de Oliveira Costa
2007-10-10 14:24 ` Arnd Bergmann
2007-10-10 15:31 ` Eric Van Hensbergen
2007-10-10 16:00 ` Arnd Bergmann
2007-10-11 14:17 ` Rusty Russell
2007-09-26 6:36 ` [patch 33/43] lguest: Net driver using virtio rusty
2007-09-26 6:36 ` [patch 34/43] lguest: Block " rusty
2007-09-28 11:32 ` [Lguest] " Chris Malley
2007-09-29 13:26 ` Rusty Russell
2007-09-26 6:36 ` [patch 35/43] lguest: Virtio console driver rusty
2007-09-26 6:36 ` [patch 36/43] lguest: Module autoprobing support for virtio drivers rusty
2007-09-26 6:36 ` [patch 37/43] lguest: Virtio helper routines for a descriptor ringbuffer implementation rusty
2007-09-30 17:03 ` Avi Kivity
2007-10-01 12:03 ` Rusty Russell
2007-10-01 12:13 ` Avi Kivity
2007-10-02 4:21 ` Rusty Russell
2007-10-02 6:02 ` Avi Kivity [this message]
2007-09-26 6:36 ` [patch 38/43] lguest: This gets rid of the lguest bus, drivers and DMA mechanism, to make way for a generic virtio mechanism rusty
2007-09-26 6:36 ` [patch 39/43] lguest: This patch gets rid of the old lguest host I/O infrastructure and replaces it with a single hypercall "LHCALL_NOTIFY" which takes an address rusty
2007-09-26 6:36 ` [patch 40/43] lguest: Lguest support for Virtio rusty
2007-09-26 6:36 ` [patch 41/43] lguest: Update example launcher for virtio rusty
2007-09-26 6:37 ` [patch 42/43] lguest: Example launcher handle guests not being ready for input rusty
2007-09-26 6:37 ` [patch 43/43] lguest: generalize lgread_u32/lgwrite_u32 rusty
2007-09-27 13:04 ` [Lguest] " Chris Malley
2007-09-29 13:29 ` Rusty Russell
2007-10-09 20:25 ` [Lguest] [patch 00/43] lguest: Patches for 2.6.24 (and patchbomb test) Eric Van Hensbergen
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