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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <jbeulich@suse.com>,
	"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "Wei Liu" <wl@xen.org>, "Roger Pau Monné" <roger.pau@citrix.com>
Subject: Re: [PATCH v3 1/3] x86: relax GDT check in arch_set_info_guest()
Date: Fri, 22 May 2020 14:27:54 +0100	[thread overview]
Message-ID: <58510f15-68d6-c773-5166-a38c72573442@citrix.com> (raw)
In-Reply-To: <acbaead9-0f6c-3606-e809-57dafe9b3f01@suse.com>

On 20/05/2020 08:53, Jan Beulich wrote:
> It is wrong for us to check frames beyond the guest specified limit
> (in the compat case another loop bound is already correct).
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

I'm still not overly convinced this is a good idea, because all it will
allow people to do is write lazy code which breaks on older Xen.

However, if you still insist, Acked-by: Andrew Cooper
<andrew.cooper3@citrix.com>


  parent reply	other threads:[~2020-05-22 13:28 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-20  7:50 [PATCH v3 0/3] x86: XSA-298 follow-up Jan Beulich
2020-05-20  7:53 ` [PATCH v3 1/3] x86: relax GDT check in arch_set_info_guest() Jan Beulich
2020-05-20 10:20   ` Roger Pau Monné
2020-05-22 13:27   ` Andrew Cooper [this message]
2020-05-22 14:14     ` Jan Beulich
2020-05-20  7:54 ` [PATCH v3 2/3] x86: relax LDT " Jan Beulich
2020-05-20  7:54 ` [PATCH v3 3/3] x86/PV: polish pv_set_gdt() Jan Beulich

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