linux-kernel - Re: [PATCH] xen: remove global bit from __default_kernel_pte

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Message-ID: <204ae9dc-e949-1db9-5dd8-8649079e0ae0@oracle.com>
Date:   Tue, 10 Jul 2018 18:27:30 -0400
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     Juergen Gross <jgross@...e.com>, linux-kernel@...r.kernel.org,
        xen-devel@...ts.xenproject.org, x86@...nel.org
Cc:     hpa@...or.com, tglx@...utronix.de, mingo@...hat.com,
        stable@...r.kernel.org
Subject: Re: [PATCH] xen: remove global bit from __default_kernel_pte_mask for
 pv guests

On 07/02/2018 06:00 AM, Juergen Gross wrote:
> When removing the global bit from __supported_pte_mask do the same for
> __default_kernel_pte_mask in order to avoid the WARN_ONCE() in
> check_pgprot() when setting a kernel pte before having called
> init_mem_mapping().
>
> Cc: <stable@...r.kernel.org> # 4.17
> Reported-by: Michael Young <m.a.young@...ham.ac.uk>
> Signed-off-by: Juergen Gross <jgross@...e.com>

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>