From: Ian Campbell <ian.campbell@citrix.com>
To: xen-devel@lists.xen.org
Cc: julien.grall@citrix.com, tim@xen.org,
Ian Campbell <ian.campbell@citrix.com>,
stefano.stabellini@eu.citrix.com
Subject: [PATCH 02/10] xen: arm: Add zeroeth level page table macros and defines
Date: Tue, 18 Jun 2013 14:26:49 +0100 [thread overview]
Message-ID: <1371562017-5379-2-git-send-email-ian.campbell@citrix.com> (raw)
In-Reply-To: <1371562002.22783.25.camel@zakaz.uk.xensource.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
---
xen/include/asm-arm/page.h | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/xen/include/asm-arm/page.h b/xen/include/asm-arm/page.h
index 41e9eff..6317090 100644
--- a/xen/include/asm-arm/page.h
+++ b/xen/include/asm-arm/page.h
@@ -337,7 +337,15 @@ static inline int gva_to_ipa(vaddr_t va, paddr_t *paddr)
#define second_table_offset(va) TABLE_OFFSET(second_linear_offset(va))
#define third_table_offset(va) TABLE_OFFSET(third_linear_offset(va))
-#define clear_page(page)memset((void *)(page), 0, PAGE_SIZE)
+#ifdef CONFIG_ARM_64
+#define ZEROETH_SHIFT (FIRST_SHIFT + LPAE_SHIFT)
+#define ZEROETH_SIZE (1u << ZEROETH_SHIFT)
+#define ZEROETH_MASK (~(ZEROETH_SIZE - 1))
+#define zeroeth_linear_offset(va) ((va) >> ZEROETH_SHIFT)
+#define zeroeth_table_offset(va) TABLE_OFFSET(zeroeth_linear_offset(va))
+#endif
+
+#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
#define PAGE_ALIGN(x) (((x) + PAGE_SIZE - 1) & PAGE_MASK)
--
1.7.2.5
next prev parent reply other threads:[~2013-06-18 13:26 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-18 13:26 [PATCH 00/10] xen: arm: direct 1:1 map on 64 bit Ian Campbell
2013-06-18 13:26 ` [PATCH 01/10] xen: arm: Use _AC macros in config.h Ian Campbell
2013-06-20 16:29 ` Stefano Stabellini
2013-06-18 13:26 ` Ian Campbell [this message]
2013-06-18 13:26 ` [PATCH 03/10] xen: arm: Rename page table "hint" field to slightly more descriptive "contig" Ian Campbell
2013-06-20 16:29 ` Stefano Stabellini
2013-06-18 13:26 ` [PATCH 04/10] xen: arm: refactor create_mappings Ian Campbell
2013-06-20 16:40 ` Stefano Stabellini
2013-06-18 13:26 ` [PATCH 05/10] xen: arm: define a macro to get this CPUs page table root Ian Campbell
2013-06-20 16:30 ` Stefano Stabellini
2013-06-25 10:49 ` Ian Campbell
2013-06-18 13:26 ` [PATCH 06/10] xen: arm: Add a pte_of_xenaddr helper Ian Campbell
2013-06-20 16:32 ` Stefano Stabellini
2013-06-25 10:50 ` Ian Campbell
2013-06-26 18:21 ` Stefano Stabellini
2013-06-18 13:26 ` [PATCH 07/10] xen: arm: fix is_xen_fixed_mfn Ian Campbell
2013-06-20 16:33 ` Stefano Stabellini
2013-06-18 13:26 ` [PATCH 08/10] xen: arm: allow virt_to_maddr to take either a pointer or an integer Ian Campbell
2013-06-20 16:34 ` Stefano Stabellini
2013-06-18 13:26 ` [PATCH 09/10] xen: gate split heap code on its own config option rather than !X86 Ian Campbell
2013-06-18 16:01 ` Jan Beulich
2013-06-20 16:35 ` Stefano Stabellini
2013-06-18 13:26 ` [PATCH 10/10] xen: arm: Use a direct mapping of RAM on arm64 Ian Campbell
2013-06-18 14:05 ` Julien Grall
2013-06-18 14:13 ` Ian Campbell
2013-06-20 16:43 ` Stefano Stabellini
2013-07-22 22:23 ` Ian Campbell
2013-06-21 14:10 ` Stefano Stabellini
2013-06-25 11:04 ` Ian Campbell
2013-06-26 18:32 ` Stefano Stabellini
2013-06-27 8:41 ` Ian Campbell
2013-06-25 15:39 ` Julien Grall
2013-06-26 11:22 ` Ian Campbell
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