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From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xen.org
Cc: Julien Grall <julien.grall@arm.com>, sstabellini@kernel.org
Subject: [PATCH v6 11/14] xen/arm: Use the typesafes mfn and gfn in map_regions_rw_cache ...
Date: Wed,  6 Jul 2016 14:01:10 +0100	[thread overview]
Message-ID: <1467810073-27971-12-git-send-email-julien.grall@arm.com> (raw)
In-Reply-To: <1467810073-27971-1-git-send-email-julien.grall@arm.com>

to avoid mixing machine frame with guest frame. Also rename the
parameters of the function and drop pointless PAGE_MASK in the caller.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>

---
    Changes in v6:
        - Add Stefano's acked-by

    Changes in v4:
        - Patch added
---
 xen/arch/arm/domain_build.c |  8 ++++----
 xen/arch/arm/p2m.c          | 20 ++++++++++----------
 xen/include/asm-arm/p2m.h   | 12 ++++++------
 3 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 923f48a..60db9e4 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -1522,9 +1522,9 @@ static void acpi_map_other_tables(struct domain *d)
         addr = acpi_gbl_root_table_list.tables[i].address;
         size = acpi_gbl_root_table_list.tables[i].length;
         res = map_regions_rw_cache(d,
-                                   paddr_to_pfn(addr & PAGE_MASK),
+                                   _gfn(paddr_to_pfn(addr)),
                                    DIV_ROUND_UP(size, PAGE_SIZE),
-                                   paddr_to_pfn(addr & PAGE_MASK));
+                                   _mfn(paddr_to_pfn(addr)));
         if ( res )
         {
              panic(XENLOG_ERR "Unable to map ACPI region 0x%"PRIx64
@@ -1878,9 +1878,9 @@ static int prepare_acpi(struct domain *d, struct kernel_info *kinfo)
 
     /* Map the EFI and ACPI tables to Dom0 */
     rc = map_regions_rw_cache(d,
-                              paddr_to_pfn(d->arch.efi_acpi_gpa),
+                              _gfn(paddr_to_pfn(d->arch.efi_acpi_gpa)),
                               PFN_UP(d->arch.efi_acpi_len),
-                              paddr_to_pfn(virt_to_maddr(d->arch.efi_acpi_table)));
+                              _mfn(paddr_to_pfn(virt_to_maddr(d->arch.efi_acpi_table))));
     if ( rc != 0 )
     {
         printk(XENLOG_ERR "Unable to map EFI/ACPI table 0x%"PRIx64
diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
index 5fe1b91..2ba9477 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -1159,27 +1159,27 @@ out:
 }
 
 int map_regions_rw_cache(struct domain *d,
-                         unsigned long start_gfn,
+                         gfn_t gfn,
                          unsigned long nr,
-                         unsigned long mfn)
+                         mfn_t mfn)
 {
     return apply_p2m_changes(d, INSERT,
-                             pfn_to_paddr(start_gfn),
-                             pfn_to_paddr(start_gfn + nr),
-                             pfn_to_paddr(mfn),
+                             pfn_to_paddr(gfn_x(gfn)),
+                             pfn_to_paddr(gfn_x(gfn) + nr),
+                             pfn_to_paddr(mfn_x(mfn)),
                              MATTR_MEM, 0, p2m_mmio_direct,
                              d->arch.p2m.default_access);
 }
 
 int unmap_regions_rw_cache(struct domain *d,
-                           unsigned long start_gfn,
+                           gfn_t gfn,
                            unsigned long nr,
-                           unsigned long mfn)
+                           mfn_t mfn)
 {
     return apply_p2m_changes(d, REMOVE,
-                             pfn_to_paddr(start_gfn),
-                             pfn_to_paddr(start_gfn + nr),
-                             pfn_to_paddr(mfn),
+                             pfn_to_paddr(gfn_x(gfn)),
+                             pfn_to_paddr(gfn_x(gfn) + nr),
+                             pfn_to_paddr(mfn_x(mfn)),
                              MATTR_MEM, 0, p2m_invalid,
                              d->arch.p2m.default_access);
 }
diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h
index 8d29eda..6e258b9 100644
--- a/xen/include/asm-arm/p2m.h
+++ b/xen/include/asm-arm/p2m.h
@@ -142,14 +142,14 @@ mfn_t p2m_lookup(struct domain *d, gfn_t gfn, p2m_type_t *t);
 int p2m_cache_flush(struct domain *d, gfn_t start, unsigned long nr);
 
 int map_regions_rw_cache(struct domain *d,
-                         unsigned long start_gfn,
-                         unsigned long nr_mfns,
-                         unsigned long mfn);
+                         gfn_t gfn,
+                         unsigned long nr,
+                         mfn_t mfn);
 
 int unmap_regions_rw_cache(struct domain *d,
-                           unsigned long start_gfn,
-                           unsigned long nr_mfns,
-                           unsigned long mfn);
+                           gfn_t gfn,
+                           unsigned long nr,
+                           mfn_t mfn);
 
 int map_dev_mmio_region(struct domain *d,
                         gfn_t gfn,
-- 
1.9.1


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  parent reply	other threads:[~2016-07-06 13:01 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-06 13:00 [PATCH v6 00/14] xen/arm: Use the typesafes gfn and mfn Julien Grall
2016-07-06 13:01 ` [PATCH v6 01/14] xen: Use the typesafe mfn and gfn in map_mmio_regions Julien Grall
2016-07-06 13:01 ` [PATCH v6 02/14] xen/passthrough: x86: Use INVALID_GFN rather than INVALID_MFN Julien Grall
2016-07-06 13:01 ` [PATCH v6 03/14] xen: Use a typesafe to define INVALID_MFN Julien Grall
2016-07-06 13:04   ` Julien Grall
2016-07-08 22:01     ` Elena Ufimtseva
2016-07-08 19:20       ` Andrew Cooper
2016-07-09  0:21         ` Elena Ufimtseva
2016-07-08 19:39       ` Julien Grall
2016-07-06 13:01 ` [PATCH v6 04/14] xen: Use a typesafe to define INVALID_GFN Julien Grall
2016-07-06 13:05   ` Julien Grall
2016-07-08 22:05     ` Elena Ufimtseva
2016-07-06 13:01 ` [PATCH v6 05/14] xen/arm: Rework the interface of p2m_lookup and use typesafe gfn and mfn Julien Grall
2016-07-06 13:01 ` [PATCH v6 06/14] xen/arm: Rework the interface of p2m_cache_flush and use typesafe gfn Julien Grall
2016-07-06 13:01 ` [PATCH v6 07/14] xen/arm: map_regions_rw_cache: Map the region with p2m->default_access Julien Grall
2016-07-06 13:01 ` [PATCH v6 08/14] xen/arm: dom0_build: Remove dead code in allocate_memory Julien Grall
2016-07-06 13:01 ` [PATCH v6 09/14] xen/arm: p2m: Remove unused operation ALLOCATE Julien Grall
2016-07-06 13:01 ` [PATCH v6 10/14] xen/arm: Use the typesafes mfn and gfn in map_dev_mmio_region Julien Grall
2016-07-06 13:01 ` Julien Grall [this message]
2016-07-06 13:01 ` [PATCH v6 12/14] xen/arm: p2m: Introduce helpers to insert and remove mapping Julien Grall
2016-07-11 16:16   ` Julien Grall
2016-07-06 13:01 ` [PATCH v6 13/14] xen/arm: p2m: Use typesafe gfn for {max, lowest}_mapped_gfn Julien Grall
2016-07-06 13:01 ` [PATCH v6 14/14] xen/arm: p2m: Rework the interface of apply_p2m_changes and use typesafe Julien Grall

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