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Tue, 01 Dec 2020 10:55:21 +0000 MIME-Version: 1.0 Date: Tue, 01 Dec 2020 10:55:20 +0000 From: Marc Zyngier To: Shenming Lu Subject: Re: [RFC PATCH v1 3/4] KVM: arm64: GICv4.1: Restore VLPI's pending state to physical side In-Reply-To: <48c10467-30f3-9b5c-bbcb-533a51516dc5@huawei.com> References: <20201123065410.1915-1-lushenming@huawei.com> <20201123065410.1915-4-lushenming@huawei.com> <5c724bb83730cdd5dcf7add9a812fa92@kernel.org> <2d2bcae4f871d239a1af50362f5c11a4@kernel.org> <49610291-cf57-ff78-d0ac-063af24efbb4@huawei.com> <48c10467-30f3-9b5c-bbcb-533a51516dc5@huawei.com> User-Agent: Roundcube Webmail/1.4.9 Message-ID: <2ad38077300bdcaedd2e3b073cd36743@kernel.org> X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: lushenming@huawei.com, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, eric.auger@redhat.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, christoffer.dall@arm.com, alex.williamson@redhat.com, kwankhede@nvidia.com, cohuck@redhat.com, cjia@nvidia.com, wanghaibin.wang@huawei.com, yuzenghui@huawei.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-20201201_055525_624353_20EFF472 X-CRM114-Status: GOOD ( 12.09 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neo Jia , kvm@vger.kernel.org, Suzuki K Poulose , Cornelia Huck , linux-kernel@vger.kernel.org, Kirti Wankhede , Christoffer Dall , Eric Auger , Alex Williamson , James Morse , Julien Thierry , yuzenghui@huawei.com, wanghaibin.wang@huawei.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 2020-11-30 07:23, Shenming Lu wrote: Hi Shenming, > We are pondering over this problem these days, but still don't get a > good solution... > Could you give us some advice on this? > > Or could we move the restoring of the pending states (include the sync > from guest RAM and the transfer to HW) to the GIC VM state change > handler, > which is completely corresponding to save_pending_tables (more > symmetric?) > and don't expose GICv4... What is "the GIC VM state change handler"? Is that a QEMU thing? We don't really have that concept in KVM, so I'd appreciate if you could be a bit more explicit on this. Thanks, M. -- Jazz is not dead. It just smells funny... _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel