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Fri, 11 Sep 2020 01:46:16 -0700 (PDT) Date: Fri, 11 Sep 2020 17:46:13 +0900 From: Sergey Senozhatsky To: yezengruan Subject: Re: [RFC][PATCH 0/4] arm64:kvm: teach guest sched that VCPUs can be preempted Message-ID: <20200911084613.GA562@jagdpanzerIV.localdomain> References: <20200721041742.197354-1-sergey.senozhatsky@gmail.com> <20200817020310.GA1210848@jagdpanzerIV.localdomain> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200911_044622_846340_332F37A2 X-CRM114-Status: GOOD ( 11.52 ) 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: joelaf@google.com, "maz@kernel.org" , "linux-kernel@vger.kernel.org" , Sergey Senozhatsky , "Wanghaibin \(D\)" , suleiman@google.com, "will@kernel.org" , "kvmarm@lists.cs.columbia.edu" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, On (20/08/17 20:03), yezengruan wrote: > Hi Sergey, > > I have a set of patches similar to yours. > > https://lore.kernel.org/lkml/20191226135833.1052-1-yezengruan@huawei.com/ I'm sorry for the belated reply. Right, quite similar, but not exactly, I believe. I deliberately wanted to untangle vcpu preemption (which is a characteristics feature) from pv-lock, which may be somewhat implementation dependent. Perhaps vcpu_is_preempted() should not even be implemented on per-arch basis, but instead it can be more of a "core" functionality. -ss _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel