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Re: [PATCH V1 3/6] xen/virtio: Add option to restrict memory access under Xen
- To: Juergen Gross <jgross@xxxxxxxx>
- From: Borislav Petkov <bp@xxxxxxxxx>
- Date: Tue, 26 Apr 2022 13:16:58 +0200
- Cc: Oleksandr <olekstysh@xxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, Tom Lendacky <thomas.lendacky@xxxxxxx>
- Delivery-date: Tue, 26 Apr 2022 11:17:26 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Tue, Apr 26, 2022 at 11:36:40AM +0200, Juergen Gross wrote:
> As the suggestion was to add another flag this wouldn't be a problem IMO.
We had a problem already with adding one flag would break the same flag
on the other guest type. That's why we added cc_vendor too. So it can be
tricky.
> platform_has() doesn't seem too bad IMO.
>
> I will write a patch for starting the discussion.
Yeah, I guess such a proposal would need a wider audience - maybe CC
linux-arch...
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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