From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: Shannon Zhao <zhaoshenglong@huawei.com>
Cc: hangaohuai@huawei.com, stefano.stabellini@citrix.com,
shannon.zhao@linaro.org, xen-devel@lists.xen.org
Subject: Re: [PATCH v5 09/22] arm/p2m: Add helper functions to map memory regions
Date: Fri, 4 Mar 2016 10:51:00 +0000 [thread overview]
Message-ID: <alpine.DEB.2.02.1603041050510.17938@kaball.uk.xensource.com> (raw)
In-Reply-To: <1457072152-16128-10-git-send-email-zhaoshenglong@huawei.com>
On Fri, 4 Mar 2016, Shannon Zhao wrote:
> 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
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> 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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next prev parent reply other threads:[~2016-03-04 10:51 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 ` [PATCH v5 09/22] arm/p2m: Add helper functions to map memory regions Shannon Zhao
2016-03-04 10:51 ` Stefano Stabellini [this message]
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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