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> -----Original Message----- > From: Alex Williamson [mailto:alex.williamson at redhat.com] > Sent: Tuesday, July 02, 2013 9:46 AM > To: Yoder Stuart-B08248 > Cc: kvm at vger.kernel.org list; Alexander Graf; Bhushan Bharat-R65777; a.motakis at virtualopensystems.com; > virtualization at lists.linux-foundation.org > Subject: Re: binding/unbinding devices to vfio-pci > > On Tue, 2013-07-02 at 14:15 +0000, Yoder Stuart-B08248 wrote: > > Alex, > > > > I'm trying to think through how binding/unbinding of devices will > &gt...

> -----Original Message----- > From: Alex Williamson [mailto:alex.williamson at redhat.com] > Sent: Tuesday, July 02, 2013 9:46 AM > To: Yoder Stuart-B08248 > Cc: kvm at vger.kernel.org list; Alexander Graf; Bhushan Bharat-R65777; a.motakis at virtualopensystems.com; > virtualization at lists.linux-foundation.org > Subject: Re: binding/unbinding devices to vfio-pci > > On Tue, 2013-07-02 at 14:15 +0000, Yoder Stuart-B08248 wrote: > > Alex, > > > > I'm trying to think through how binding/unbinding of devices will > &gt...

...--- De?: Shannon Zhao [mailto:zhaoshenglong at huawei.com] Envoy??: mercredi 5 novembre 2014 09:00 ??: linux-kernel at vger.kernel.org Cc?: mst at redhat.com; peter.maydell at linaro.org; john.liuli at huawei.com; joel.schopp at amd.com; GAUGUEY R?my 228890; qemu-devel at nongnu.org; n.nikolaev at virtualopensystems.com; virtualization at lists.linux-foundation.org; peter.huangpeng at huawei.com; hangaohuai at huawei.com Objet?: Re: [RFC PATCH] virtio-mmio: support for multiple irqs On 2014/11/4 17:35, Shannon Zhao wrote: > As the current virtio-mmio only support single irq, so some advanced > featur...

...--- De?: Shannon Zhao [mailto:zhaoshenglong at huawei.com] Envoy??: mercredi 5 novembre 2014 09:00 ??: linux-kernel at vger.kernel.org Cc?: mst at redhat.com; peter.maydell at linaro.org; john.liuli at huawei.com; joel.schopp at amd.com; GAUGUEY R?my 228890; qemu-devel at nongnu.org; n.nikolaev at virtualopensystems.com; virtualization at lists.linux-foundation.org; peter.huangpeng at huawei.com; hangaohuai at huawei.com Objet?: Re: [RFC PATCH] virtio-mmio: support for multiple irqs On 2014/11/4 17:35, Shannon Zhao wrote: > As the current virtio-mmio only support single irq, so some advanced > featur...

Howdy, On 8 April 2015 at 17:15, Xie, Huawei <huawei.xie at intel.com> wrote: > luke: > 1. host read the flag. 2 guest toggles the flag 3.guest checks the used. > 4. host update used. > Is this your case? > Yep, that is exactly the case I mean. Cheers, -Luke -------------- next part -------------- An HTML attachment was scrubbed... URL:

Howdy, On 8 April 2015 at 17:15, Xie, Huawei <huawei.xie at intel.com> wrote: > luke: > 1. host read the flag. 2 guest toggles the flag 3.guest checks the used. > 4. host update used. > Is this your case? > Yep, that is exactly the case I mean. Cheers, -Luke -------------- next part -------------- An HTML attachment was scrubbed... URL:

...n Zhao [mailto:zhaoshenglong at huawei.com] > Envoy? : mercredi 5 novembre 2014 09:00 > ? : linux-kernel at vger.kernel.org > Cc : mst at redhat.com; peter.maydell at linaro.org; john.liuli at huawei.com; joel.schopp at amd.com; GAUGUEY R?my 228890; qemu-devel at nongnu.org; n.nikolaev at virtualopensystems.com; virtualization at lists.linux-foundation.org; peter.huangpeng at huawei.com; hangaohuai at huawei.com > Objet : Re: [RFC PATCH] virtio-mmio: support for multiple irqs > > > On 2014/11/4 17:35, Shannon Zhao wrote: >> As the current virtio-mmio only support single irq, so so...

Alex, I'm trying to think through how binding/unbinding of devices will work with VFIO for platform devices and have a couple of questions about how vfio-pci works. When you bind a device to vfio-pci, e.g.: # echo 1102 0002 > /sys/bus/pci/drivers/vfio-pci/new_id ...I understand that the echo into 'new_id' tells the vfio pci driver that it now handles the specified PCI ID. But

Alex, I'm trying to think through how binding/unbinding of devices will work with VFIO for platform devices and have a couple of questions about how vfio-pci works. When you bind a device to vfio-pci, e.g.: # echo 1102 0002 > /sys/bus/pci/drivers/vfio-pci/new_id ...I understand that the echo into 'new_id' tells the vfio pci driver that it now handles the specified PCI ID. But

...> Brad Smith <brad@comstyle.com> Bruce Rogers <brogers@suse.com> Charles Arnold <carnold@suse.com> Chegu Vinod <chegu_vinod@hp.com> Chen Wei-Ren <chenwj@iis.sinica.edu.tw> Christian Borntraeger <borntraeger@de.ibm.com> Christoffer Dall <c.dall@virtualopensystems.com> Christoffer Dall <cdall@cs.columbia.edu> Christophe Lyon <christophe.lyon@linaro.org> Claudio Fontana <claudio.fontana@huawei.com> Cole Robinson <crobinso@redhat.com> Corey Bryant <coreyb@linux.vnet.ibm.com> Cornelia Huck <cornelia.huck@de.ibm.c...

...> Brad Smith <brad@comstyle.com> Bruce Rogers <brogers@suse.com> Charles Arnold <carnold@suse.com> Chegu Vinod <chegu_vinod@hp.com> Chen Wei-Ren <chenwj@iis.sinica.edu.tw> Christian Borntraeger <borntraeger@de.ibm.com> Christoffer Dall <c.dall@virtualopensystems.com> Christoffer Dall <cdall@cs.columbia.edu> Christophe Lyon <christophe.lyon@linaro.org> Claudio Fontana <claudio.fontana@huawei.com> Cole Robinson <crobinso@redhat.com> Corey Bryant <coreyb@linux.vnet.ibm.com> Cornelia Huck <cornelia.huck@de.ibm.c...

...> Brad Smith <brad@comstyle.com> Bruce Rogers <brogers@suse.com> Charles Arnold <carnold@suse.com> Chegu Vinod <chegu_vinod@hp.com> Chen Wei-Ren <chenwj@iis.sinica.edu.tw> Christian Borntraeger <borntraeger@de.ibm.com> Christoffer Dall <c.dall@virtualopensystems.com> Christoffer Dall <cdall@cs.columbia.edu> Christophe Lyon <christophe.lyon@linaro.org> Claudio Fontana <claudio.fontana@huawei.com> Cole Robinson <crobinso@redhat.com> Corey Bryant <coreyb@linux.vnet.ibm.com> Cornelia Huck <cornelia.huck@de.ibm.c...

As the current virtio-mmio only support single irq, so some advanced features such as vhost-net with irqfd are not supported. And the net performance is not the best without vhost-net and irqfd supporting. This patch support virtio-mmio to request multiple irqs like virtio-pci. With this patch and qemu assigning multiple irqs for virtio-mmio device, it's ok to use vhost-net with irqfd on

As the current virtio-mmio only support single irq, so some advanced features such as vhost-net with irqfd are not supported. And the net performance is not the best without vhost-net and irqfd supporting. This patch support virtio-mmio to request multiple irqs like virtio-pci. With this patch and qemu assigning multiple irqs for virtio-mmio device, it's ok to use vhost-net with irqfd on

...tmailru@gmail.com> Antonio BORNEO <antonio.borneo@st.com> Antonio Ospite <ao2@amarulasolutions.com> Antonio Ospite <ospite@studenti.unina.it> Antonio Quartulli <antonio@open-mesh.com> Antonio Quartulli <ordex@autistici.org> Antonios Motakis <a.motakis@virtualopensystems.com> Antony Pavlov <antonynpavlov@gmail.com> Antti P Miettinen <amiettinen@nvidia.com> Antti Palosaari <crope@iki.fi> Aravinda Prasad <aravinda@linux.vnet.ibm.com> Archit Taneja <a0393947@ti.com> # DSS Archit Taneja <archit@ti.com> Arend van Spr...

...tmailru@gmail.com> Antonio BORNEO <antonio.borneo@st.com> Antonio Ospite <ao2@amarulasolutions.com> Antonio Ospite <ospite@studenti.unina.it> Antonio Quartulli <antonio@open-mesh.com> Antonio Quartulli <ordex@autistici.org> Antonios Motakis <a.motakis@virtualopensystems.com> Antony Pavlov <antonynpavlov@gmail.com> Antti P Miettinen <amiettinen@nvidia.com> Antti Palosaari <crope@iki.fi> Aravinda Prasad <aravinda@linux.vnet.ibm.com> Archit Taneja <a0393947@ti.com> # DSS Archit Taneja <archit@ti.com> Arend van Spr...

...tmailru@gmail.com> Antonio BORNEO <antonio.borneo@st.com> Antonio Ospite <ao2@amarulasolutions.com> Antonio Ospite <ospite@studenti.unina.it> Antonio Quartulli <antonio@open-mesh.com> Antonio Quartulli <ordex@autistici.org> Antonios Motakis <a.motakis@virtualopensystems.com> Antony Pavlov <antonynpavlov@gmail.com> Antti P Miettinen <amiettinen@nvidia.com> Antti Palosaari <crope@iki.fi> Aravinda Prasad <aravinda@linux.vnet.ibm.com> Archit Taneja <a0393947@ti.com> # DSS Archit Taneja <archit@ti.com> Arend van Spr...

...tmailru@gmail.com> Antonio BORNEO <antonio.borneo@st.com> Antonio Ospite <ao2@amarulasolutions.com> Antonio Ospite <ospite@studenti.unina.it> Antonio Quartulli <antonio@open-mesh.com> Antonio Quartulli <ordex@autistici.org> Antonios Motakis <a.motakis@virtualopensystems.com> Antony Pavlov <antonynpavlov@gmail.com> Antti P Miettinen <amiettinen@nvidia.com> Antti Palosaari <crope@iki.fi> Anup Patel <anup.patel@linaro.org> Anurup m <anurup.m@huawei.com> Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Aravi...

...tmailru@gmail.com> Antonio BORNEO <antonio.borneo@st.com> Antonio Ospite <ao2@amarulasolutions.com> Antonio Ospite <ospite@studenti.unina.it> Antonio Quartulli <antonio@open-mesh.com> Antonio Quartulli <ordex@autistici.org> Antonios Motakis <a.motakis@virtualopensystems.com> Antony Pavlov <antonynpavlov@gmail.com> Antti P Miettinen <amiettinen@nvidia.com> Antti Palosaari <crope@iki.fi> Anup Patel <anup.patel@linaro.org> Anurup m <anurup.m@huawei.com> Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Aravi...

...tmailru@gmail.com> Antonio BORNEO <antonio.borneo@st.com> Antonio Ospite <ao2@amarulasolutions.com> Antonio Ospite <ospite@studenti.unina.it> Antonio Quartulli <antonio@open-mesh.com> Antonio Quartulli <ordex@autistici.org> Antonios Motakis <a.motakis@virtualopensystems.com> Antony Pavlov <antonynpavlov@gmail.com> Antti P Miettinen <amiettinen@nvidia.com> Antti Palosaari <crope@iki.fi> Anup Patel <anup.patel@linaro.org> Anurup m <anurup.m@huawei.com> Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Aravi...