From: Shannon Zhao <zhaoshenglong@huawei.com>
To: linux-arm-kernel@lists.infradead.org, ard.biesheuvel@linaro.org,
stefano.stabellini@citrix.com, david.vrabel@citrix.com
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
hangaohuai@huawei.com, linux-efi@vger.kernel.org,
catalin.marinas@arm.com, will.deacon@arm.com,
linux-kernel@vger.kernel.org, xen-devel@lists.xen.org,
shannon.zhao@linaro.org
Subject: [PATCH v5 00/17] Add ACPI support for Xen Dom0 on ARM64
Date: Fri, 4 Mar 2016 14:37:18 +0800 [thread overview]
Message-ID: <1457073455-11516-1-git-send-email-zhaoshenglong@huawei.com> (raw)
From: Shannon Zhao <shannon.zhao@linaro.org>
This patch set adds ACPI support for Xen Dom0 on ARM64. The relevant Xen
ACPI on ARM64 design document could be found from [1].
This patch set adds a new FDT node "uefi" under /hypervisor to pass UEFI
information. Introduce a bus notifier of AMBA and Platform bus to map
the new added device's MMIO space. Make Xen domain use
xlated_setup_gnttab_pages to setup grant table and a new hypercall to
get event-channel irq.
Regarding the initialization flow of Linux kernel, it needs to move
xen_early_init() before efi_init(). Then xen_early_init() will check
whether it runs on Xen through the /hypervisor node and efi_init() will
call a new function fdt_find_xen_uefi_params(), to parse those
xen,uefi-* parameters just like the existing efi_get_fdt_params().
And in arm64_enable_runtime_services() it will check whether it runs on
Xen and call another new function xen_efi_runtime_setup() to setup
runtime service instead of efi_native_runtime_setup(). The
xen_efi_runtime_setup() will assign the runtime function pointers with
the functions of driver/xen/efi.c.
And since we pass a /hypervisor node and a /chosen node to Dom0, it
needs to check whether the DTS only contains a /hypervisor node and a
/chosen node in acpi_boot_table_init().
Patches are tested on FVP base model.
Thanks,
Shannon
[1] http://lists.xen.org/archives/html/xen-devel/2015-11/msg00488.html
Changes since v4:
* rebase on linux master
* move the check acpi_device_should_be_hidden into
acpi_bus_type_and_status (patch 1)
* use existing function fdt_subnode_offset (patch 16)
Changes since v3:
* rebase on linux master
* print a warning when there is no SPCR table
* rephase the commit message of PATCH 3
* rephase the words of PATCH 13
* use strcmp and factor the function in PATCH 16
* Add several ACKs and RBs, thanks a lot
Changes since v2:
* Use 0 to check if it should ignore the UART
* Fix the use of page_to_xen_pfn
* Factor ACPI and DT parts in xen_guest_init
* Check "uefi" node by full path
* Fix the statement of Documentation/devicetree/bindings/arm/xen.txt
Changes since v1:
* Rebase on linux mainline and wallclock patch from Stefano
* Refactor AMBA and platform device MMIO map to one file
* Use EFI_PARAVIRT to check if it supports XEN EFI
* Refactor Xen EFI codes
* Address other comments
Shannon Zhao (17):
Xen: ACPI: Hide UART used by Xen
xen/grant-table: Move xlated_setup_gnttab_pages to common place
Xen: xlate: Use page_to_xen_pfn instead of page_to_pfn
arm/xen: Use xen_xlate_map_ballooned_pages to setup grant table
xen: memory : Add new XENMAPSPACE type XENMAPSPACE_dev_mmio
Xen: ARM: Add support for mapping platform device mmio
Xen: ARM: Add support for mapping AMBA device mmio
Xen: public/hvm: sync changes of HVM_PARAM_CALLBACK_VIA ABI from Xen
xen/hvm/params: Add a new delivery type for event-channel in
HVM_PARAM_CALLBACK_IRQ
arm/xen: Get event-channel irq through HVM_PARAM when booting with
ACPI
ARM: XEN: Move xen_early_init() before efi_init()
ARM64: ACPI: Check if it runs on Xen to enable or disable ACPI
ARM: Xen: Document UEFI support on Xen ARM virtual platforms
XEN: EFI: Move x86 specific codes to architecture directory
ARM64: XEN: Add a function to initialize Xen specific UEFI runtime
services
FDT: Add a helper to get the subnode by given name
Xen: EFI: Parse DT parameters for Xen specific UEFI
Documentation/devicetree/bindings/arm/xen.txt | 33 +++++
arch/arm/include/asm/xen/xen-ops.h | 6 +
arch/arm/xen/Makefile | 1 +
arch/arm/xen/efi.c | 40 ++++++
arch/arm/xen/enlighten.c | 109 +++++++++++----
arch/arm64/include/asm/xen/xen-ops.h | 6 +
arch/arm64/kernel/acpi.c | 12 +-
arch/arm64/kernel/setup.c | 2 +-
arch/arm64/xen/Makefile | 1 +
arch/x86/xen/efi.c | 112 ++++++++++++++++
arch/x86/xen/grant-table.c | 57 +-------
drivers/acpi/scan.c | 68 ++++++++++
drivers/firmware/efi/arm-runtime.c | 17 ++-
drivers/firmware/efi/efi.c | 45 ++++++-
drivers/of/fdt.c | 13 ++
drivers/xen/Kconfig | 2 +-
drivers/xen/Makefile | 1 +
drivers/xen/arm-device.c | 184 ++++++++++++++++++++++++++
drivers/xen/efi.c | 174 +++++-------------------
drivers/xen/xlate_mmu.c | 67 ++++++++++
include/linux/of_fdt.h | 2 +
include/xen/interface/hvm/params.h | 37 +++++-
include/xen/interface/memory.h | 1 +
include/xen/xen-ops.h | 32 +++--
24 files changed, 775 insertions(+), 247 deletions(-)
create mode 100644 arch/arm/include/asm/xen/xen-ops.h
create mode 100644 arch/arm/xen/efi.c
create mode 100644 arch/arm64/include/asm/xen/xen-ops.h
create mode 100644 drivers/xen/arm-device.c
--
2.0.4
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next reply other threads:[~2016-03-04 6:37 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-04 6:37 Shannon Zhao [this message]
2016-03-04 6:37 ` [PATCH v5 01/17] Xen: ACPI: Hide UART used by Xen Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 02/17] xen/grant-table: Move xlated_setup_gnttab_pages to common place Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 03/17] Xen: xlate: Use page_to_xen_pfn instead of page_to_pfn Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 04/17] arm/xen: Use xen_xlate_map_ballooned_pages to setup grant table Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 05/17] xen: memory : Add new XENMAPSPACE type XENMAPSPACE_dev_mmio Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 06/17] Xen: ARM: Add support for mapping platform device mmio Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 07/17] Xen: ARM: Add support for mapping AMBA " Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 08/17] Xen: public/hvm: sync changes of HVM_PARAM_CALLBACK_VIA ABI from Xen Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 09/17] xen/hvm/params: Add a new delivery type for event-channel in HVM_PARAM_CALLBACK_IRQ Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 10/17] arm/xen: Get event-channel irq through HVM_PARAM when booting with ACPI Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 11/17] ARM: XEN: Move xen_early_init() before efi_init() Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 12/17] ARM64: ACPI: Check if it runs on Xen to enable or disable ACPI Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 13/17] ARM: Xen: Document UEFI support on Xen ARM virtual platforms Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 14/17] XEN: EFI: Move x86 specific codes to architecture directory Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 15/17] ARM64: XEN: Add a function to initialize Xen specific UEFI runtime services Shannon Zhao
2016-03-04 6:37 ` Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 16/17] FDT: Add a helper to get the subnode by given name Shannon Zhao
2016-03-04 6:37 ` [PATCH v5 17/17] Xen: EFI: Parse DT parameters for Xen specific UEFI Shannon Zhao
[not found] ` <1457073455-11516-2-git-send-email-zhaoshenglong@huawei.com>
2016-03-04 12:24 ` [PATCH v5 01/17] Xen: ACPI: Hide UART used by Xen Stefano Stabellini
[not found] ` <alpine.DEB.2.02.1603041213400.17938@kaball.uk.xensource.com>
2016-03-04 15:56 ` Shannon Zhao
[not found] ` <56D9B043.1090301@linaro.org>
2016-03-04 16:28 ` Stefano Stabellini
[not found] ` <1457073455-11516-17-git-send-email-zhaoshenglong@huawei.com>
2016-03-04 12:27 ` [PATCH v5 16/17] FDT: Add a helper to get the subnode by given name Stefano Stabellini
2016-03-18 13:53 ` Rob Herring
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