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Fri, 12 May 2023 08:51:06 +0100 Date: Fri, 12 May 2023 08:51:06 +0100 Message-ID: <86wn1em1hx.wl-maz@kernel.org> From: Marc Zyngier To: =?UTF-8?B?IllpLURlIFd1ICjlkLPkuIDlvrcpIg==?= Cc: "corbet@lwn.net" , "linux-kernel@vger.kernel.org" , "robh+dt@kernel.org" , "angelogioacchino.delregno@collabora.com" , "linux-mediatek@lists.infradead.org" , "linux-arch@vger.kernel.org" , =?UTF-8?B?Ik1Z?= =?UTF-8?B?IENodWFuZyAo6I6K5piO6LqNKSI=?= , "devicetree@vger.kernel.org" , "quic_tsoni@quicinc.com" , =?UTF-8?B?IlNoYXduIEhz?= =?UTF-8?B?aWFvICjola3lv5fnpaUpIg==?= , =?UTF-8?B?Ik1pbGVzIENoZW4gKOmZs+awkeaouiki?= , =?UTF-8?B?IlBlaUx1biBTdWVpICjpmovln7nlgKspIg==?= , =?UTF-8?B?IkxpanUtY2xyIENoZW4gKOmZs+m6lw==?= =?UTF-8?B?5aaCKSI=?= , =?UTF-8?B?IkphZGVzIFNo?= =?UTF-8?B?aWggKOaWveWQkeeOqCki?= , "catalin.marinas@arm.com" , "dbrazdil@google.com" , "linux-arm-kernel@lists.infradead.org" , =?UTF-8?B?IllpbmdzaGl1YW4gUGFu?= =?UTF-8?B?ICjmvZjnqY7ou5IpIg==?= , "krzysztof.kozlowski+dt@linaro.org" , "matthias.bgg@gmail.com" , "arnd@arndb.de" , "linux-doc@vger.kernel.org" , =?UTF-8?B?IlplLXl1IFdhbmcgKOeOi+a+pOWuhyki?= , "will@kernel.org" , =?UTF-8?B?Ikl2YW4gVHNlbmcgKOabvg==?= =?UTF-8?B?5b+X6LuSKSI=?= Subject: Re: [PATCH v2 5/7] virt: geniezone: Add irqchip support for virtual interrupt injection In-Reply-To: <762e3494ed468f0337b1c336615065b154396d23.camel@mediatek.com> References: <20230428103622.18291-1-yi-de.wu@mediatek.com> <20230428103622.18291-6-yi-de.wu@mediatek.com> <762e3494ed468f0337b1c336615065b154396d23.camel@mediatek.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/28.2 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: Yi-De.Wu@mediatek.com, corbet@lwn.net, linux-kernel@vger.kernel.org, robh+dt@kernel.org, angelogioacchino.delregno@collabora.com, linux-mediatek@lists.infradead.org, linux-arch@vger.kernel.org, MY.Chuang@mediatek.com, devicetree@vger.kernel.org, quic_tsoni@quicinc.com, shawn.hsiao@mediatek.com, Miles.Chen@mediatek.com, PeiLun.Suei@mediatek.com, Liju-clr.Chen@mediatek.com, jades.shih@mediatek.com, catalin.marinas@arm.com, dbrazdil@google.com, linux-arm-kernel@lists.infradead.org, Yingshiuan.Pan@mediatek.com, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, arnd@arndb.de, linux-doc@vger.kernel.org, Ze-yu.Wang@mediatek.com, will@kernel.org, ivan.tseng@mediatek.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230512_005110_205371_E8C26BE0 X-CRM114-Status: GOOD ( 25.67 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Fri, 12 May 2023 08:19:31 +0100, "Yi-De Wu (=E5=90=B3=E4=B8=80=E5=BE=B7)" wrote: >=20 > On Fri, 2023-04-28 at 19:59 +0100, Marc Zyngier wrote: > > External email : Please do not click links or open attachments until > > you have verified the sender or the content. > >=20 > >=20 > > On 2023-04-28 11:36, Yi-De Wu wrote: > > > From: "Yingshiuan Pan" > > >=20 > > > Enable GenieZone to handle virtual interrupt injection request. > > >=20 > > > Signed-off-by: Yingshiuan Pan > > > Signed-off-by: Yi-De Wu > > > --- > > > arch/arm64/geniezone/Makefile | 2 +- > > > arch/arm64/geniezone/gzvm_arch.c | 24 ++++++-- > > > arch/arm64/geniezone/gzvm_arch.h | 11 ++++ > > > arch/arm64/geniezone/gzvm_irqchip.c | 88 > > > +++++++++++++++++++++++++++++ > > > drivers/virt/geniezone/gzvm_vm.c | 75 ++++++++++++++++++++++++ > > > include/linux/gzvm_drv.h | 4 ++ > > > include/uapi/linux/gzvm.h | 38 ++++++++++++- > > > 7 files changed, 235 insertions(+), 7 deletions(-) > > > create mode 100644 arch/arm64/geniezone/gzvm_irqchip.c > >=20 > > [...] > >=20 > > > +++ b/arch/arm64/geniezone/gzvm_irqchip.c > > > @@ -0,0 +1,88 @@ > > > +// SPDX-License-Identifier: GPL-2.0 > > > +/* > > > + * Copyright (c) 2023 MediaTek Inc. > > > + */ > > > + > > > +#include > > > +#include > >=20 > > NAK. > >=20 > > There is no way you can rely on anything from KVM in > > your own hypervisor code. > >=20 >=20 > Same with previous discussion, we'd like to copy or rename the related=20 > part from KVM and keep the maintainance at our own if it's ok. Why do you need *ANY* of the KVM stuff? Please fully enumerate these dependencies and why you have them. Directly using KVM stuff for something completely unrelated is not OK, and will never be. M. --=20 Without deviation from the norm, progress is not possible.