From mboxrd@z Thu Jan 1 00:00:00 1970 From: Srivatsa Vaddagiri Subject: Re: [RFC/PATCH 0/1] virtio_mmio: hypervisor specific interfaces for MMIO Date: Thu, 30 Apr 2020 16:10:05 +0530 Message-ID: <20200430104004.GA3204@quicinc.com> References: <1588240976-10213-1-git-send-email-vatsa@codeaurora.org> <20200430060653-mutt-send-email-mst@kernel.org> Reply-To: Srivatsa Vaddagiri Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Return-path: Content-Disposition: inline In-Reply-To: <20200430060653-mutt-send-email-mst@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: "Michael S. Tsirkin" Cc: konrad.wilk@oracle.com, jasowang@redhat.com, jan.kiszka@siemens.com, will@kernel.org, stefano.stabellini@xilinx.com, iommu@lists.linux-foundation.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org, tsoni@codeaurora.org, pratikp@codeaurora.org, christoffer.dall@arm.com, alex.bennee@linaro.org, linux-kernel@vger.kernel.org List-Id: virtualization@lists.linuxfoundation.org * Michael S. Tsirkin [2020-04-30 06:07:56]: > On Thu, Apr 30, 2020 at 03:32:55PM +0530, Srivatsa Vaddagiri wrote: > > The Type-1 hypervisor we are dealing with does not allow for MMIO transport. > > How about PCI then? Correct me if I am wrong, but basically virtio_pci uses the same low-level primitive as readl/writel on a platform such as ARM64? So similar issues there also. -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation