Re: [Xen-devel] [PATCH v5 05/23] x86/mm: move ro page fault emulation code

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 14.09.17 at 14:58, <wei.liu2@xxxxxxxxxx> wrote:
> --- /dev/null
> +++ b/xen/include/asm-x86/pv/mm.h
> @@ -0,0 +1,38 @@
> +/*
> + * asm-x86/pv/mm.h
> + *
> + * Memory management interfaces for PV guests
> + *
> + * Copyright (C) 2017 Wei Liu <wei.liu2@xxxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms and conditions of the GNU General Public
> + * License, version 2, as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public
> + * License along with this program; If not, see 
> <http://www.gnu.org/licenses/>.
> + */
> +
> +#ifndef __X86_PV_MM_H__
> +#define __X86_PV_MM_H__
> +
> +#ifdef CONFIG_PV
> +
> +int pv_ro_page_fault(unsigned long addr, struct cpu_user_regs *regs);
> +
> +#else
> +
> +static inline int pv_ro_page_fault(unsigned long addr,
> +                                   struct cpu_user_regs *regs)
> +{

ASSERT_UNREACHABLE()? In any event
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>

Jan


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