From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shannon Zhao Subject: Re: [PATCH v10 00/17] Add ACPI support for Xen Dom0 on ARM64 Date: Thu, 7 Apr 2016 09:39:45 +0800 Message-ID: <5705BA61.7000205@huawei.com> References: <1459525755-36968-1-git-send-email-shannon.zhao@linaro.org> <5704F3E1.7020508@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5704F3E1.7020508-5wv7dgnIgG8@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Julien Grall , Shannon Zhao , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, stefano.stabellini-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org Cc: david.vrabel-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, catalin.marinas-5wv7dgnIgG8@public.gmane.org, will.deacon-5wv7dgnIgG8@public.gmane.org, peter.huangpeng-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, xen-devel-GuqFBffKawuEi8DpZVb4nw@public.gmane.org List-Id: devicetree@vger.kernel.org Hi Julien, On 2016/4/6 19:32, Julien Grall wrote: > Hi Shannon, > > On 01/04/2016 16:48, Shannon Zhao wrote: >> 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. They can be fetched from[2]. > > I have tested this series and Linux is booting up to the prompt: > > Tested-by: Julien Grall Thanks a lot. There are several patches which you didn't give your comments. So I assume you will review them. If so, I'll wait and update this series later. Thanks, -- Shannon -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html