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From: Juan Quintela <quintela@redhat.com>
In-Reply-To: <546CA051.4050803@redhat.com> (Paolo Bonzini's message of "Wed,
	19 Nov 2014 14:51:13 +0100")
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Date: Wed, 19 Nov 2014 15:03:43 +0100
Message-ID: <87egszmgn4.fsf@elfo.elfo>
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Subject: Re: [Qemu-devel] [PATCH 2/5] exec: qemu_ram_alloc_device,
	qemu_ram_resize
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org, dgilbert@redhat.com, "Michael S. Tsirkin" <mst@redhat.com>

Paolo Bonzini <pbonzini@redhat.com> wrote:
> On 19/11/2014 14:49, Juan Quintela wrote:
>>> > Real hardware lets users update firmware and so should virtual hardware.
>> But you can hibernate your laptop, update the firmware, and reboot?
>> Where the change can be anyting, like moving from traditional BIOS to
>> UEFI?
>
> Wait wait wait.  I totally cannot follow.  What would be the equivalent
> in QEMU?

qemu-2.0 -M pc-2.0

migrate to disk/s3/s4

upgrade qemu

qemu-2.2 -M pc-2.0

try interesting variation of s3/s4/migration to disk.  Migration to disk
should work (we migrate BIOS ROM blocks, enphasis on ROM), s3 perhaps
(machine needs to be saved to disk), s4 ..... depends how it ends being
done.

Later, Juan.