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From: Paolo Bonzini <pbonzini@redhat.com>
To: quintela@redhat.com
Cc: qemu-devel@nongnu.org, dgilbert@redhat.com,
	"Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 2/5] exec: qemu_ram_alloc_device, qemu_ram_resize
Date: Wed, 19 Nov 2014 15:20:22 +0100	[thread overview]
Message-ID: <546CA726.4090502@redhat.com> (raw)
In-Reply-To: <87ioibmgx6.fsf@elfo.elfo>



On 19/11/2014 14:57, Juan Quintela wrote:
> > Shipping a separate BIOS for different machine types is unrealistic and
> > pointless.  It would also be a good terrain for bug reports, unless you
> > also do things like "forbid creating -device megasas-gen2 on 2.1 because
> > it was introduced in 2.2".
>
> And I agree with that.  If it got introduced on 2.2, it should not be
> allowed on pc-2.1.  It just makes things more complicated.  We don't
> have infrastructure to enforce that.  And I am claining that is the
> problem.  We are just papering over this problem each time that it
> happens.  I honestely think that the only way to really fix
> compatibility is enforcing that machine types are stable.  right now
> they are now, and we ended nothing it.

Weird, I have bought this USB device last month and I plugged it into a
two-year-old laptop.

    QEMU version = when did I last update firmware / buy hardware
    Machine type = when did I buy the computer

I honestly think that you are talking out of design dogma, without
really thinking through the consequences of the design.

Paolo

  parent reply	other threads:[~2014-11-19 14:20 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-17 20:08 [Qemu-devel] [PATCH 0/5] pc: make ROMs resizeable Michael S. Tsirkin
2014-11-17 20:08 ` [Qemu-devel] [PATCH 1/5] cpu: add cpu_physical_memory_clear_dirty_range_nocode Michael S. Tsirkin
2014-11-19  9:10   ` Juan Quintela
2014-11-17 20:08 ` [Qemu-devel] [PATCH 2/5] exec: qemu_ram_alloc_device, qemu_ram_resize Michael S. Tsirkin
2014-11-17 20:15   ` Michael S. Tsirkin
2014-11-18  6:03   ` Paolo Bonzini
2014-11-18  7:49     ` Michael S. Tsirkin
2014-11-19  9:19       ` Juan Quintela
2014-11-19  9:33         ` Michael S. Tsirkin
2014-11-19 10:11           ` Juan Quintela
2014-11-19 10:21             ` Michael S. Tsirkin
2014-11-19 10:45               ` Juan Quintela
2014-11-19 13:28                 ` Michael S. Tsirkin
2014-11-19 13:44                   ` Paolo Bonzini
2014-11-19 13:57                     ` Juan Quintela
2014-11-19 14:13                       ` Dr. David Alan Gilbert
2014-11-19 14:22                         ` Paolo Bonzini
2014-11-19 14:26                           ` Dr. David Alan Gilbert
2014-11-19 14:28                             ` Paolo Bonzini
2014-11-19 14:59                               ` Dr. David Alan Gilbert
2014-11-19 15:38                                 ` Michael S. Tsirkin
2014-11-19 15:53                                   ` Dr. David Alan Gilbert
2014-11-19 14:22                         ` Juan Quintela
2014-11-19 14:20                       ` Paolo Bonzini [this message]
2014-11-19 16:39                         ` Juan Quintela
2014-11-19 16:56                           ` Paolo Bonzini
2014-11-19 16:27                     ` Kevin O'Connor
2014-11-19 17:01                       ` Paolo Bonzini
2014-11-20  8:12                         ` Gerd Hoffmann
2014-11-20 10:00                           ` Paolo Bonzini
2014-11-19 13:49                   ` Juan Quintela
2014-11-19 13:51                     ` Paolo Bonzini
2014-11-19 14:03                       ` Juan Quintela
2014-11-19 14:11                         ` Paolo Bonzini
2014-11-19 14:16                           ` Dr. David Alan Gilbert
2014-11-19 14:28                             ` Paolo Bonzini
2014-11-19 14:20                           ` Juan Quintela
2014-11-19 15:43                             ` Michael S. Tsirkin
2014-11-19 10:16           ` Markus Armbruster
2014-11-19 10:30             ` Michael S. Tsirkin
2014-11-19 10:50               ` Juan Quintela
2014-11-19 13:36                 ` Michael S. Tsirkin
2014-11-19 13:51                   ` Juan Quintela
2014-11-19 15:46                     ` Michael S. Tsirkin
2014-11-19 16:45                       ` Juan Quintela
2014-11-19 18:28                         ` Paolo Bonzini
2014-11-20 13:35               ` Markus Armbruster
2014-11-20 14:04                 ` Michael S. Tsirkin
2014-11-24 13:48                   ` Paolo Bonzini
2014-11-19 13:58   ` Peter Maydell
2014-11-19 14:07     ` Juan Quintela
2014-11-19 14:10       ` Peter Maydell
2014-11-19 14:18         ` Juan Quintela
2014-11-19 16:08           ` Stefan Hajnoczi
2014-11-19 14:19         ` Paolo Bonzini
2014-11-19 14:21           ` Peter Maydell
2014-11-19 14:30             ` Paolo Bonzini
2014-11-19 15:16               ` Michael S. Tsirkin
2014-11-19 16:50           ` Juan Quintela
2014-11-19 15:12         ` Michael S. Tsirkin
2014-11-19 15:04     ` Michael S. Tsirkin
2014-11-17 20:08 ` [Qemu-devel] [PATCH 3/5] arch_init: support resizing on incoming migration Michael S. Tsirkin
2014-11-17 20:08 ` [Qemu-devel] [PATCH 4/5] memory: interface to allocate device ram Michael S. Tsirkin
2014-11-17 20:21   ` Peter Maydell
2014-11-18 11:54     ` Michael S. Tsirkin
2014-11-17 20:09 ` [Qemu-devel] [PATCH 5/5] acpi-build: make ROMs device RAM, make them resizeable Michael S. Tsirkin
2014-11-17 20:11 ` [Qemu-devel] [PATCH 0/5] pc: make ROMs resizeable Michael S. Tsirkin
2014-11-19  7:29   ` Amit Shah
2014-11-18 14:47 ` Markus Armbruster
2014-11-18 15:00   ` Michael S. Tsirkin
2014-11-19  8:16     ` Markus Armbruster
2014-11-19 13:41       ` Michael S. Tsirkin
2014-11-19  7:31 ` Amit Shah
2014-11-19  8:15   ` Michael S. Tsirkin
2014-11-19  8:22     ` Amit Shah
2014-11-19 13:33       ` Michael S. Tsirkin
2014-11-19 13:52         ` Juan Quintela
2014-11-19 16:01           ` Michael S. Tsirkin
2014-11-19 13:52   ` Peter Maydell
2014-11-19 14:41     ` Paolo Bonzini
2014-11-19 15:34       ` Michael S. Tsirkin
2014-11-19 16:40       ` Juan Quintela

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