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From: Shannon Zhao <zhaoshenglong@huawei.com>
To: xen-devel@lists.xen.org
Cc: hangaohuai@huawei.com, stefano.stabellini@citrix.com,
	shannon.zhao@linaro.org, zhaoshenglong@huawei.com
Subject: [PATCH v5 09/22] arm/p2m: Add helper functions to map memory regions
Date: Fri, 4 Mar 2016 14:15:39 +0800	[thread overview]
Message-ID: <1457072152-16128-10-git-send-email-zhaoshenglong@huawei.com> (raw)
In-Reply-To: <1457072152-16128-1-git-send-email-zhaoshenglong@huawei.com>

From: Parth Dixit <parth.dixit@linaro.org>

Create a helper function for mapping with cached attributes and
read-write range.

Signed-off-by: Parth Dixit <parth.dixit@linaro.org>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
---
v5: use p2m_access_rw and rename to map_regions_rw
---
 xen/arch/arm/p2m.c        | 26 ++++++++++++++++++++++++++
 xen/include/asm-arm/p2m.h | 10 ++++++++++
 2 files changed, 36 insertions(+)

diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
index a2a9c4b..d206616 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -1218,6 +1218,32 @@ int p2m_populate_ram(struct domain *d,
                              d->arch.p2m.default_access);
 }
 
+int map_regions_rw(struct domain *d,
+                     unsigned long start_gfn,
+                     unsigned long nr,
+                     unsigned long mfn)
+{
+    return apply_p2m_changes(d, INSERT,
+                             pfn_to_paddr(start_gfn),
+                             pfn_to_paddr(start_gfn + nr),
+                             pfn_to_paddr(mfn),
+                             MATTR_MEM, 0, p2m_mmio_direct,
+                             p2m_access_rw);
+}
+
+int unmap_regions_rw(struct domain *d,
+                       unsigned long start_gfn,
+                       unsigned long nr,
+                       unsigned long mfn)
+{
+    return apply_p2m_changes(d, REMOVE,
+                             pfn_to_paddr(start_gfn),
+                             pfn_to_paddr(start_gfn + nr),
+                             pfn_to_paddr(mfn),
+                             MATTR_MEM, 0, p2m_invalid,
+                             p2m_access_rw);
+}
+
 int map_mmio_regions(struct domain *d,
                      unsigned long start_gfn,
                      unsigned long nr,
diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h
index 433952a..17be6ad 100644
--- a/xen/include/asm-arm/p2m.h
+++ b/xen/include/asm-arm/p2m.h
@@ -144,6 +144,16 @@ int p2m_cache_flush(struct domain *d, xen_pfn_t start_mfn, xen_pfn_t end_mfn);
 /* Setup p2m RAM mapping for domain d from start-end. */
 int p2m_populate_ram(struct domain *d, paddr_t start, paddr_t end);
 
+int map_regions_rw(struct domain *d,
+                    unsigned long start_gfn,
+                    unsigned long nr_mfns,
+                    unsigned long mfn);
+
+int unmap_regions_rw(struct domain *d,
+                    unsigned long start_gfn,
+                    unsigned long nr_mfns,
+                    unsigned long mfn);
+
 int guest_physmap_add_entry(struct domain *d,
                             unsigned long gfn,
                             unsigned long mfn,
-- 
2.0.4



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  parent reply	other threads:[~2016-03-04  6:15 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-04  6:15 [PATCH v5 00/22] Prepare UEFI and ACPI tables for Dom0 on ARM64 Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 01/22] arm/acpi: Estimate memory required for acpi/efi tables Shannon Zhao
2016-03-04 10:09   ` Jan Beulich
2016-03-04 10:55     ` Stefano Stabellini
2016-03-04 15:03       ` Shannon Zhao
2016-03-04 15:23         ` Stefano Stabellini
2016-03-04 15:52           ` Shannon Zhao
2016-03-04 15:59             ` Stefano Stabellini
2016-03-04 15:39         ` Jan Beulich
2016-03-04  6:15 ` [PATCH v5 02/22] arm/acpi: Add a helper function to get the acpi table offset Shannon Zhao
2016-03-04 10:59   ` Stefano Stabellini
2016-03-04 15:12     ` Shannon Zhao
2016-03-04 15:31       ` Stefano Stabellini
2016-03-04 15:53         ` Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 03/22] arm/acpi: Prepare FADT table for Dom0 Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 04/22] arm/gic: Add a new callback for creating MADT " Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 05/22] arm/acpi: Prepare " Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 06/22] arm/acpi: Prepare STAO " Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 07/22] arm/acpi: Prepare XSDT " Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 08/22] arm/acpi: Prepare RSDP " Shannon Zhao
2016-03-04  6:15 ` Shannon Zhao [this message]
2016-03-04 10:51   ` [PATCH v5 09/22] arm/p2m: Add helper functions to map memory regions Stefano Stabellini
2016-03-04  6:15 ` [PATCH v5 10/22] arm/acpi: Map all other tables for Dom0 Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 11/22] arm/acpi: Prepare EFI system table " Shannon Zhao
2016-03-04 11:02   ` Stefano Stabellini
2016-03-04  6:15 ` [PATCH v5 12/22] arm/acpi: Prepare EFI memory descriptor " Shannon Zhao
2016-03-04 11:13   ` Stefano Stabellini
2016-03-16  8:59     ` Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 13/22] arm/acpi: Map the new created EFI and ACPI tables to Dom0 Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 14/22] arm/acpi: Create min DT stub for Dom0 Shannon Zhao
2016-03-04 11:17   ` Stefano Stabellini
2016-03-04  6:15 ` [PATCH v5 15/22] arm/acpi: Permit access all Xen unused SPIs " Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 16/22] arm/acpi: Configure SPI interrupt type and route to Dom0 dynamically Shannon Zhao
2016-03-04 11:26   ` Stefano Stabellini
2016-03-04 15:16     ` Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 17/22] arm/gic: Add a new callback to deny Dom0 access to GIC regions Shannon Zhao
2016-03-04 11:59   ` Stefano Stabellini
2016-03-04  6:15 ` [PATCH v5 18/22] arm/acpi: Permit MMIO access of Xen unused devices for Dom0 Shannon Zhao
2016-03-04 12:01   ` Stefano Stabellini
2016-03-04  6:15 ` [PATCH v5 19/22] hvm/params: Add a new delivery type for event-channel in HVM_PARAM_CALLBACK_IRQ Shannon Zhao
2016-03-04 10:16   ` Jan Beulich
2016-03-04 12:09     ` Stefano Stabellini
2016-03-04 12:20       ` Jan Beulich
2016-03-04 12:26         ` Stefano Stabellini
2016-03-16 15:03     ` Julien Grall
2016-03-16 15:10       ` Jan Beulich
2016-03-04 21:19   ` Konrad Rzeszutek Wilk
2016-03-16 16:34     ` Julien Grall
2016-03-16 17:49       ` Konrad Rzeszutek Wilk
2016-03-24 12:24         ` Stefano Stabellini
2016-03-04  6:15 ` [PATCH v5 20/22] xen/acpi: Fix event-channel interrupt when booting with ACPI Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 21/22] xen/arm: Add a hypercall for device mmio mapping Shannon Zhao
2016-03-04 10:29   ` Jan Beulich
2016-03-04 11:00     ` Roger Pau Monné
2016-03-04 11:11       ` Jan Beulich
2016-03-04 11:37         ` Stefano Stabellini
2016-03-16  9:48     ` Shannon Zhao
2016-03-16 10:04       ` Jan Beulich
2016-03-16 11:22         ` Shannon Zhao
2016-03-04  6:15 ` [PATCH v5 22/22] xen/arm64: Add ACPI support Shannon Zhao
2016-03-04 10:33   ` Jan Beulich
2016-03-04 11:45     ` Stefano Stabellini
2016-03-04 11:45   ` Stefano Stabellini

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