From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [Xen-devel] [PATCH 06/13] Xen: ARM: Add support for mapping amba device mmio Date: Wed, 18 Nov 2015 12:27:43 +0000 Message-ID: <564C6EBF.7010105@citrix.com> References: <1447754231-7772-1-git-send-email-shannon.zhao@linaro.org> <1447754231-7772-7-git-send-email-shannon.zhao@linaro.org> <20151117144040.GI3003@char.us.oracle.com> <564C14CA.9080601@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <564C14CA.9080601-hv44wF8Li93QT0dZR+AlfA@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Shannon Zhao , Konrad Rzeszutek Wilk , shannon.zhao-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org Cc: mark.rutland-5wv7dgnIgG8@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, hangaohuai-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org, ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@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, stefano.stabellini-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org, christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: linux-efi@vger.kernel.org On 18/11/15 06:03, Shannon Zhao wrote: >> >> What about the removal of a bus device? No need to handle that? >> > I have thought about removal before. I think there is little(or no) > chance for AMBA and platform bus devices to be removed. It's not like > the PCI devices which will be hot-unplug. > Maybe I'm not right. If so, it's fine to add a case to handle the removal. What about the platform device passthrough case? In anycase, if the AMBA platform provides a removal method, there is harmless to implement it. Regards, -- Julien Grall From mboxrd@z Thu Jan 1 00:00:00 1970 From: julien.grall@citrix.com (Julien Grall) Date: Wed, 18 Nov 2015 12:27:43 +0000 Subject: [Xen-devel] [PATCH 06/13] Xen: ARM: Add support for mapping amba device mmio In-Reply-To: <564C14CA.9080601@huawei.com> References: <1447754231-7772-1-git-send-email-shannon.zhao@linaro.org> <1447754231-7772-7-git-send-email-shannon.zhao@linaro.org> <20151117144040.GI3003@char.us.oracle.com> <564C14CA.9080601@huawei.com> Message-ID: <564C6EBF.7010105@citrix.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 18/11/15 06:03, Shannon Zhao wrote: >> >> What about the removal of a bus device? No need to handle that? >> > I have thought about removal before. I think there is little(or no) > chance for AMBA and platform bus devices to be removed. It's not like > the PCI devices which will be hot-unplug. > Maybe I'm not right. If so, it's fine to add a case to handle the removal. What about the platform device passthrough case? In anycase, if the AMBA platform provides a removal method, there is harmless to implement it. Regards, -- Julien Grall