From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefano Garzarella <sgarzare@redhat.com>,
Eduardo Habkost <ehabkost@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>
Cc: qemu-devel@nongnu.org, George Kennedy <george.kennedy@oracle.com>,
Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Maran Wilson <maran.wilson@oracle.com>,
Liam Merwick <liam.merwick@oracle.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Richard Henderson <rth@twiddle.net>,
Eric Blake <eblake@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v5 4/5] hw/i386/pc: use PVH option rom
Date: Mon, 21 Jan 2019 19:33:32 +0100 [thread overview]
Message-ID: <e889e61c-f5fe-51cc-c703-45487efd4d3f@redhat.com> (raw)
In-Reply-To: <20190121173650.ydihxdyhheq7xcpq@steredhat>
On 21/01/19 18:36, Stefano Garzarella wrote:
>>
>> | On Tue, Jan 15, 2019 at 01:57:22PM -0500, Michael S. Tsirkin wrote:
>> | > OK but this is guest visible so needs to be guarded by the
>> | > new machine type.
>> |
>> | Aren't option ROMs treated like other firmware? i.e.: guest
>> | visible, but copied during live migration and not considered part
>> | of guest ABI.
> I don't know the exact answer, but reading the wiki, I think Michael is right!
> (https://wiki.qemu.org/Features/Migration/Troubleshooting#ROMs)
>
> Maybe it is related for PVH feature in general, because if we try to
> migrate to a QEMU version that doesn't support PVH I'm not sure what is
> the behaviour.
As far as I understand, QEMU would fail to migrate to the destination
because the PVH option ROM doesn't have a corresponding RAMBlock.
Paolo
next prev parent reply other threads:[~2019-01-21 18:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-18 12:01 [Qemu-devel] [PATCH v5 0/5] pvh: add new PVH option rom Stefano Garzarella
2019-01-18 12:01 ` [Qemu-devel] [PATCH v5 1/5] linuxboot_dma: remove duplicate definitions of FW_CFG Stefano Garzarella
2019-01-18 12:01 ` [Qemu-devel] [PATCH v5 2/5] linuxboot_dma: move common functions in a new header Stefano Garzarella
2019-01-21 15:43 ` Paolo Bonzini
2019-01-21 16:20 ` Stefano Garzarella
2019-01-18 12:01 ` [Qemu-devel] [PATCH v5 3/5] optionrom: add new PVH option rom Stefano Garzarella
2019-01-21 17:37 ` Paolo Bonzini
2019-01-18 12:01 ` [Qemu-devel] [PATCH v5 4/5] hw/i386/pc: use " Stefano Garzarella
2019-01-21 17:05 ` Eduardo Habkost
2019-01-21 17:36 ` Stefano Garzarella
2019-01-21 18:33 ` Paolo Bonzini [this message]
2019-01-22 9:22 ` Stefano Garzarella
2019-01-22 9:29 ` Paolo Bonzini
2019-01-22 9:38 ` Stefano Garzarella
2019-01-18 12:01 ` [Qemu-devel] [PATCH v5 5/5] optionrom/pvh: load initrd from fw_cfg Stefano Garzarella
2019-01-21 10:17 ` [Qemu-devel] [PATCH v5 0/5] pvh: add new PVH option rom Stefan Hajnoczi
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