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From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xen.org
Cc: sstabellini@kernel.org, Wei Liu <wei.liu2@citrix.com>,
	George Dunlap <George.Dunlap@eu.citrix.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
	Julien Grall <julien.grall@arm.com>,
	Jan Beulich <jbeulich@suse.com>,
	wei.chen@linaro.org
Subject: [PATCH v4 05/16] xen/mm: Introduce INVALID_GFN_T and INVALID_MFN_T
Date: Mon, 27 Jun 2016 17:54:01 +0100	[thread overview]
Message-ID: <1467046452-1261-6-git-send-email-julien.grall@arm.com> (raw)
In-Reply-To: <1467046452-1261-1-git-send-email-julien.grall@arm.com>

The two new defines will be a typesafe version of resp. INVALID_GFN and
INVALID_MFN.

Signed-off-by: Julien Grall <julien.grall@arm.com>

---
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: George Dunlap <George.Dunlap@eu.citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Jan Beulich <jbeulich@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Tim Deegan <tim@xen.org>
Cc: Wei Liu <wei.liu2@citrix.com>

    Changes in v4:
        - Patch added
---
 xen/include/xen/mm.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h
index afbb1a1..978a62e 100644
--- a/xen/include/xen/mm.h
+++ b/xen/include/xen/mm.h
@@ -56,6 +56,7 @@
 TYPE_SAFE(unsigned long, mfn);
 #define PRI_mfn          "05lx"
 #define INVALID_MFN      (~0UL)
+#define INVALID_MFN_T    _mfn(INVALID_MFN)
 
 #ifndef mfn_t
 #define mfn_t /* Grep fodder: mfn_t, _mfn() and mfn_x() are defined above */
@@ -85,6 +86,7 @@ static inline bool_t mfn_eq(mfn_t x, mfn_t y)
 TYPE_SAFE(unsigned long, gfn);
 #define PRI_gfn          "05lx"
 #define INVALID_GFN      (~0UL)
+#define INVALID_GFN_T    _gfn(INVALID_GFN)
 
 #ifndef gfn_t
 #define gfn_t /* Grep fodder: gfn_t, _gfn() and gfn_x() are defined above */
-- 
1.9.1


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  parent reply	other threads:[~2016-06-27 16:54 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-27 16:53 [PATCH v4 00/16] xen/arm: Use the typesafes gfn and mfn Julien Grall
2016-06-27 16:53 ` [PATCH v4 01/16] xen: Use typesafe gfn/mfn in guest_physmap_* helpers Julien Grall
2016-06-27 16:53 ` [PATCH v4 02/16] xen: Use typesafe gfn in xenmem_add_to_physmap_one Julien Grall
2016-06-27 16:53 ` [PATCH v4 03/16] xen/arm: Rename grant_table_gfpn into grant_table_gfn and use the typesafe gfn Julien Grall
2016-06-27 16:54 ` [PATCH v4 04/16] xen: Use the typesafe mfn and gfn in map_mmio_regions Julien Grall
2016-06-27 16:54 ` Julien Grall [this message]
2016-06-28  7:16   ` [PATCH v4 05/16] xen/mm: Introduce INVALID_GFN_T and INVALID_MFN_T Jan Beulich
2016-06-28  7:29     ` Andrew Cooper
2016-06-28  7:54       ` Jan Beulich
2016-06-27 16:54 ` [PATCH v4 06/16] xen/arm: Rework the interface of p2m_lookup and use typesafe gfn and mfn Julien Grall
2016-06-27 16:54 ` [PATCH v4 07/16] xen/arm: Rework the interface of p2m_cache_flush and use typesafe gfn Julien Grall
2016-06-27 16:54 ` [PATCH v4 08/16] xen: Replace _mfn(INVALID_MFN) with MFN_INVALID_T Julien Grall
2016-06-28  7:19   ` Jan Beulich
2016-06-28 12:18     ` Julien Grall
2016-06-27 16:54 ` [PATCH v4 09/16] xen/arm: map_regions_rw_cache: Map the region with p2m->default_access Julien Grall
2016-06-27 16:54 ` [PATCH v4 10/16] xen/arm: dom0_build: Remove dead code in allocate_memory Julien Grall
2016-06-27 16:54 ` [PATCH v4 11/16] xen/arm: p2m: Remove unused operation ALLOCATE Julien Grall
2016-06-27 16:54 ` [PATCH v4 12/16] xen/arm: Use the typesafes mfn and gfn in map_dev_mmio_region Julien Grall
2016-06-27 16:54 ` [PATCH v4 13/16] xen/arm: Use the typesafes mfn and gfn in map_regions_rw_cache Julien Grall
2016-06-27 16:54 ` [PATCH v4 14/16] xen/arm: p2m: Introduce helpers to insert and remove mapping Julien Grall
2016-06-27 16:54 ` [PATCH v4 15/16] xen/arm: p2m: Use typesafe gfn for {max, lowest}_mapped_gfn Julien Grall
2016-06-27 16:54 ` [PATCH v4 16/16] xen/arm: p2m: Rework the interface of apply_p2m_changes and use typesafe Julien Grall

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