From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Julien Grall <julien@xen.org>, <xen-devel@lists.xenproject.org>
Cc: Julien Grall <julien.grall@arm.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>,
George Dunlap <george.dunlap@citrix.com>,
Ian Jackson <iwj@xenproject.org>, Jan Beulich <jbeulich@suse.com>,
Wei Liu <wl@xen.org>
Subject: Re: [PATCH v4 4/4] xen/mm: Provide dummy M2P-related helpers when !CONFIG_HAVE_M2P
Date: Mon, 21 Sep 2020 21:37:18 +0100 [thread overview]
Message-ID: <26a1a029-26ec-51b4-bd1c-a1826f7d1ad7@citrix.com> (raw)
In-Reply-To: <20200921180214.4842-5-julien@xen.org>
On 21/09/2020 19:02, Julien Grall wrote:
> diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h
> index 4536a62940a1..15bb0aa30d22 100644
> --- a/xen/include/xen/mm.h
> +++ b/xen/include/xen/mm.h
> @@ -685,4 +685,17 @@ static inline void put_page_alloc_ref(struct page_info *page)
> }
> }
>
> +/*
> + * Dummy implementation of M2P-related helpers for common code when
> + * the architecture doesn't have an M2P.
> + */
> +#ifndef CONFIG_HAS_M2P
> +
> +#define INVALID_M2P_ENTRY (~0UL)
> +#define SHARED_M2P(_e) false
((void)_e, false)
Otherwise, Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
> +
> +static inline void set_gpfn_from_mfn(unsigned long mfn, unsigned long pfn) {}
> +
> +#endif
> +
> #endif /* __XEN_MM_H__ */
next prev parent reply other threads:[~2020-09-21 20:37 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-21 18:02 [PATCH v4 0/4] xen/arm: Properly disable M2P on Arm Julien Grall
2020-09-21 18:02 ` [PATCH v4 1/4] xen: XENMEM_exchange should only be used/compiled for arch supporting PV guest Julien Grall
2020-09-21 19:46 ` Andrew Cooper
2020-09-22 17:53 ` Julien Grall
2020-09-22 7:35 ` Jan Beulich
2020-09-22 18:05 ` Julien Grall
2020-09-21 18:02 ` [PATCH v4 2/4] xen: Introduce HAS_M2P config and use to protect mfn_to_gmfn call Julien Grall
2020-09-21 20:29 ` Andrew Cooper
2020-09-22 18:20 ` Julien Grall
2020-09-22 18:56 ` Andrew Cooper
2020-09-26 13:00 ` Julien Grall
2020-10-23 15:45 ` Julien Grall
2020-09-22 7:54 ` Jan Beulich
2020-09-22 18:21 ` Julien Grall
2020-09-21 18:02 ` [PATCH v4 3/4] xen: Remove mfn_to_gmfn macro Julien Grall
2020-09-21 20:34 ` Andrew Cooper
2020-09-22 18:23 ` Julien Grall
2020-09-23 22:02 ` Stefano Stabellini
2020-09-21 18:02 ` [PATCH v4 4/4] xen/mm: Provide dummy M2P-related helpers when !CONFIG_HAVE_M2P Julien Grall
2020-09-21 20:37 ` Andrew Cooper [this message]
2020-09-22 8:02 ` Jan Beulich
2020-09-22 18:39 ` Julien Grall
2020-09-22 18:59 ` Andrew Cooper
2020-09-22 20:35 ` Lengyel, Tamas
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