From: Juergen Gross <jgross@suse.com>
To: Anthony PERARD <anthony.perard@citrix.com>,
Oleksandr <olekstysh@gmail.com>
Cc: xen-devel@lists.xenproject.org,
Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>,
Wei Liu <wl@xen.org>, George Dunlap <george.dunlap@citrix.com>,
Nick Rosbrook <rosbrookn@ainfosec.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Julien Grall <julien@xen.org>,
Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>,
Bertrand Marquis <bertrand.marquis@arm.com>
Subject: Re: [PATCH V6 1/2] libxl: Add support for Virtio disk configuration
Date: Thu, 6 Jan 2022 09:06:55 +0100 [thread overview]
Message-ID: <e2a5b2e1-a0ce-6481-8789-4e380afbea0e@suse.com> (raw)
In-Reply-To: <YcIE5rv5vwxwSvKd@perard>
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On 21.12.21 17:46, Anthony PERARD wrote:
> On Fri, Dec 17, 2021 at 06:50:02PM +0200, Oleksandr wrote:
>> On 17.12.21 17:26, Juergen Gross wrote:
>>> On 15.12.21 22:36, Oleksandr wrote:
>>>> On 15.12.21 17:58, Juergen Gross wrote:
>>>>> In practice we are having something like the "protocol" already today:
>>>>> the disk device name is encoding that ("xvd*" is a Xen PV disk, while
>>>>> "sd*" is an emulated SCSI disk, which happens to be presented to the
>>>>> guest as "xvd*", too). And this is an additional information not
>>>>> related to the backendtype.
>
> You mean in theory? ;-) In practice, xvd* is the same as hd* (or sd*?).
> I tried once to have xvd* mean PV disk only, but the patch was rejected.
> So at the moment, we always get an emulated disk, we can't have PV disk
> alone, at least on x86.
What?
Of course we can. Take any PV or PVH guest excluding dom0, and you'll
see that.
Juergen
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next prev parent reply other threads:[~2022-01-06 8:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-08 16:59 [PATCH V6 0/2] Virtio support for toolstack on Arm (Was "IOREQ feature (+ virtio-mmio) on Arm") Oleksandr Tyshchenko
2021-12-08 16:59 ` [PATCH V6 1/2] libxl: Add support for Virtio disk configuration Oleksandr Tyshchenko
2021-12-09 6:50 ` Jiamei Xie
2021-12-14 16:03 ` Anthony PERARD
2021-12-14 17:44 ` Oleksandr
2021-12-15 6:08 ` Juergen Gross
2021-12-15 15:02 ` Oleksandr
2021-12-15 15:58 ` Juergen Gross
2021-12-15 21:36 ` Oleksandr
2021-12-17 15:26 ` Juergen Gross
2021-12-17 16:50 ` Oleksandr
2021-12-21 16:46 ` Anthony PERARD
2021-12-22 9:45 ` Oleksandr
2022-01-06 8:06 ` Juergen Gross [this message]
2022-06-24 12:45 ` George Dunlap
2022-06-24 13:12 ` Juergen Gross
2021-12-15 13:02 ` Oleksandr
2021-12-08 16:59 ` [PATCH V6 2/2] libxl: Introduce basic virtio-mmio support on Arm Oleksandr Tyshchenko
2021-12-09 6:03 ` Jiamei Xie
2021-12-09 6:34 ` Henry Wang
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