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,
Rob Herring <robh@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 13/17] ARM: Xen: Document UEFI support on Xen ARM virtual platforms
Date: Fri, 4 Mar 2016 14:37:31 +0800 [thread overview]
Message-ID: <1457073455-11516-14-git-send-email-zhaoshenglong__24370.3328109861$1457073901$gmane$org@huawei.com> (raw)
In-Reply-To: <1457073455-11516-1-git-send-email-zhaoshenglong@huawei.com>
From: Shannon Zhao <shannon.zhao@linaro.org>
Add a "uefi" node under /hypervisor node in FDT, then Linux kernel could
scan this to get the UEFI information.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
CC: Rob Herring <robh@kernel.org>
---
Documentation/devicetree/bindings/arm/xen.txt | 33 +++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/xen.txt b/Documentation/devicetree/bindings/arm/xen.txt
index 0f7b9c2..6f83f76 100644
--- a/Documentation/devicetree/bindings/arm/xen.txt
+++ b/Documentation/devicetree/bindings/arm/xen.txt
@@ -15,6 +15,26 @@ the following properties:
- interrupts: the interrupt used by Xen to inject event notifications.
A GIC node is also required.
+To support UEFI on Xen ARM virtual platforms, Xen populates the FDT "uefi" node
+under /hypervisor with following parameters:
+
+________________________________________________________________________________
+Name | Size | Description
+================================================================================
+xen,uefi-system-table | 64-bit | Guest physical address of the UEFI System
+ | | Table.
+--------------------------------------------------------------------------------
+xen,uefi-mmap-start | 64-bit | Guest physical address of the UEFI memory
+ | | map.
+--------------------------------------------------------------------------------
+xen,uefi-mmap-size | 32-bit | Size in bytes of the UEFI memory map
+ | | pointed to in previous entry.
+--------------------------------------------------------------------------------
+xen,uefi-mmap-desc-size | 32-bit | Size in bytes of each entry in the UEFI
+ | | memory map.
+--------------------------------------------------------------------------------
+xen,uefi-mmap-desc-ver | 32-bit | Version of the mmap descriptor format.
+--------------------------------------------------------------------------------
Example (assuming #address-cells = <2> and #size-cells = <2>):
@@ -22,4 +42,17 @@ hypervisor {
compatible = "xen,xen-4.3", "xen,xen";
reg = <0 0xb0000000 0 0x20000>;
interrupts = <1 15 0xf08>;
+ uefi {
+ xen,uefi-system-table = <0xXXXXXXXX>;
+ xen,uefi-mmap-start = <0xXXXXXXXX>;
+ xen,uefi-mmap-size = <0xXXXXXXXX>;
+ xen,uefi-mmap-desc-size = <0xXXXXXXXX>;
+ xen,uefi-mmap-desc-ver = <0xXXXXXXXX>;
+ };
};
+
+The format and meaning of the "xen,uefi-*" parameters are similar to those in
+Documentation/arm/uefi.txt, which are provided by the regular UEFI stub. However
+they differ because they are provided by the Xen hypervisor, together with a set
+of UEFI runtime services implemented via hypercalls, see
+http://xenbits.xen.org/docs/unstable/hypercall/x86_64/include,public,platform.h.html.
--
2.0.4
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
next prev parent 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 [PATCH v5 00/17] Add ACPI support for Xen Dom0 on ARM64 Shannon Zhao
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 ` Shannon Zhao [this message]
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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