search for: pci_reset_function

Since quirk_nvidia_hda() was added there's now two nvidia device functions on any laptops with nvidia GPUs: the HDA controller, and the GPU itself. Unfortunately this has the sideaffect of breaking quirk_reset_lenovo_thinkpad_50_nvgpu() since pci_reset_function() was using pci_parent_bus_reset() to reset the GPU's respective PCI bus, and pci_parent_bus_reset() does not work on busses which have more then a single device function present. So, fix this by simply calling pci_reset_bus() instead which properly resets the GPU bus and all device functions...

...nitial domain is untouched and is 1 after msix_capability_init. Based on above, it''s Xen''s duty to restore entry->msi_attrib.masked to device, but with current code, entry->masked is used and MSI-x interrupt is masked. Before patch, restore call graph under initial domain: pci_reset_function-> pci_restore_state-> __pci_restore_msix_state-> arch_restore_msi_irqs-> xen_initdom_restore_msi_irqs-> PHYSDEVOP_restore_msi hypercall (first mask restore) msix_mask_irq(entry, entry->masked) (second mask...

...s/bus/pci/devices/pciback/bind - detached from the pciback module, as so: echo "0000:01.07.0" > /sys/bus/pci/devices/pciback/unbind - and when the guest is done with (internally when the guest is not using the PCI device anymore). I ran in one issue which is that I could not do pci_reset_function call when "bind" or "unbind" were done as the device_lock was held (and pci_reset_function tried to acquire the mutex). The solution was to introduce a new "pci_reset_function": [PATCH 1/5] pci: Introduce __pci_reset_function_locked to be used and then piggyback on th...

Hi As we will use xl in xen 4.1. I had try use xl to do something. And I find some command is fails. For config file, when give "disk=" too args, it will show segment fault if we use xl create to start guest. Is there any change for xl''s config file? Following command can not work: xl migrate: when I use xl migrate domain localhost to do migrate, it shows error:

Hi Alex, I've been playing around with VFIO and megasas (of course). What I did now was switching between VFIO and 'normal' operation, ie emulated access. megasas is happily running under VFIO, but when I do an emergency stop like killing the Qemu session the PCI device is not properly reset. IE when I load 'megaraid_sas' after unbinding the vfio_pci module the driver

Hi Alex, I've been playing around with VFIO and megasas (of course). What I did now was switching between VFIO and 'normal' operation, ie emulated access. megasas is happily running under VFIO, but when I do an emergency stop like killing the Qemu session the PCI device is not properly reset. IE when I load 'megaraid_sas' after unbinding the vfio_pci module the driver

...r(pdev, "Can't map MMIO space\n"); + goto out_disable; + } + + /* + * Make sure the GPU looks like it's been POSTed before resetting + * it. + */ + if (ioread32(map + 0x2240c) & 0x2) { + pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n"); + ret = pci_reset_function(pdev); + if (ret < 0) + pci_err(pdev, "Failed to reset GPU: %d\n", ret); + } + + iounmap(map); +out_disable: + pci_disable_device(pdev); +} +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, + PCI_CLASS_DISPLAY_VGA, 8, + quirk_reset_lenovo_thinkpad_p50_nvgp...

...r(pdev, "Can't map MMIO space\n"); + goto out_disable; + } + + /* + * Make sure the GPU looks like it's been POSTed before resetting + * it. + */ + if (ioread32(map + 0x2240c) & 0x2) { + pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n"); + ret = pci_reset_function(pdev); + if (ret < 0) + pci_err(pdev, "Failed to reset GPU: %d\n", ret); + } + + iounmap(map); +out_disable: + pci_disable_device(pdev); +} +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, + PCI_CLASS_DISPLAY_VGA, 8, + quirk_reset_lenovo_thinkpad_p50_nvgp...

...r(pdev, "Can't map MMIO space\n"); + goto out_disable; + } + + /* + * Make sure the GPU looks like it's been POSTed before resetting + * it. + */ + if (ioread32(map + 0x2240c) & 0x2) { + pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n"); + ret = pci_reset_function(pdev); + if (ret < 0) + pci_err(pdev, "Failed to reset GPU: %d\n", ret); + } + + iounmap(map); +out_disable: + pci_disable_device(pdev); +} +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, + PCI_CLASS_DISPLAY_VGA, 8, + quirk_reset_lenovo_thinkpad_p50_nvgp...

...r(pdev, "Can't map MMIO space\n"); + goto out_disable; + } + + /* + * Make sure the GPU looks like it's been POSTed before resetting + * it. + */ + if (ioread32(map + 0x2240c) & 0x2) { + pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n"); + ret = pci_reset_function(pdev); + if (ret < 0) + pci_err(pdev, "Failed to reset GPU: %d\n", ret); + } + + iounmap(map); +out_disable: + pci_disable_device(pdev); +} +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, + PCI_CLASS_DISPLAY_VGA, 8, + quirk_reset_lenovo_thinkpad_p50_nvgp...

...r(pdev, "Can't map MMIO space\n"); + goto out_disable; + } + + /* + * Make sure the GPU looks like it's been POSTed before resetting + * it. + */ + if (ioread32(map + 0x2240c) & 0x2) { + pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n"); + ret = pci_reset_function(pdev); + if (ret < 0) + pci_err(pdev, "Failed to reset GPU: %d\n", ret); + } + + iounmap(map); +out_disable: + pci_disable_device(pdev); +} +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, + PCI_CLASS_DISPLAY_VGA, 8, + quirk_reset_lenovo_thinkpad_p50_nvgp...

...r(pdev, "Can't map MMIO space\n"); + goto out_disable; + } + + /* + * Make sure the GPU looks like it's been POSTed before resetting + * it. + */ + if (ioread32(map + 0x2240c) & 0x2) { + pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n"); + ret = pci_reset_function(pdev); + if (ret < 0) + pci_err(pdev, "Failed to reset GPU: %d\n", ret); + } + + iounmap(map); +out_disable: + pci_disable_device(pdev); +} +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, + PCI_CLASS_DISPLAY_VGA, 8, + quirk_reset_lenovo_thinkpad_p50_nvgp...

...r(pdev, "Can't map MMIO space\n"); + goto out_disable; + } + + /* + * Make sure the GPU looks like it's been POSTed before resetting + * it. + */ + if (ioread32(map + 0x2240c) & 0x2) { + pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n"); + ret = pci_reset_function(pdev); + if (ret < 0) + pci_err(pdev, "Failed to reset GPU: %d\n", ret); + } + + iounmap(map); +out_disable: + pci_disable_device(pdev); +} +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, + PCI_CLASS_DISPLAY_VGA, 8, + quirk_reset_lenovo_thinkpad_p50_nvgp...

...+ * Be extra careful, and make sure that the GPU firmware is posted > > + * before trying a reset > > + */ > > + if (ioread32(map + 0x2240c) & 0x2) { > > + pci_info(pdev, > > + FW_BUG "GPU left initialized by EFI, resetting\n"); > > + ret = pci_reset_function(pdev); > > + if (ret < 0) > > + pci_err(pdev, "Failed to reset GPU: %d\n", ret); > > + } > > + > > + iounmap(map); > > +out_disable: > > + pci_disable_device(pdev); > > +} > > + > > +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR...

...probably very bad\n"); + goto out_disable; + } + + /* + * Be extra careful, and make sure that the GPU firmware is posted + * before trying a reset + */ + if (ioread32(map + 0x2240c) & 0x2) { + pci_info(pdev, + FW_BUG "GPU left initialized by EFI, resetting\n"); + ret = pci_reset_function(pdev); + if (ret < 0) + pci_err(pdev, "Failed to reset GPU: %d\n", ret); + } + + iounmap(map); +out_disable: + pci_disable_device(pdev); +} + +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, + PCI_CLASS_DISPLAY_VGA, 8, + quirk_lenovo_thinkpad_p50_nvgpu_su...

...is posted > > > > + * before trying a reset > > > > + */ > > > > + if (ioread32(map + 0x2240c) & 0x2) { > > > > + pci_info(pdev, > > > > + FW_BUG "GPU left initialized by EFI, resetting\n"); > > > > + ret = pci_reset_function(pdev); > > > > + if (ret < 0) > > > > + pci_err(pdev, "Failed to reset GPU: %d\n", ret); > > > > + } > > > > + > > > > + iounmap(map); > > > > +out_disable: > > > > + pci_disable_device(pdev); > &...

...> + } > + > + /* > + * Be extra careful, and make sure that the GPU firmware is posted > + * before trying a reset > + */ > + if (ioread32(map + 0x2240c) & 0x2) { > + pci_info(pdev, > + FW_BUG "GPU left initialized by EFI, resetting\n"); > + ret = pci_reset_function(pdev); > + if (ret < 0) > + pci_err(pdev, "Failed to reset GPU: %d\n", ret); > + } > + > + iounmap(map); > +out_disable: > + pci_disable_device(pdev); > +} > + > +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1, > + PCI_CLASS_DISPL...

Hi everyone, I would like to ask what the current status of FLR, or better of FLR emulation is in latest Xen and if we can expect better support in the future. I''m asking because with xl (latest build and traditional qemu, not upstream), I always had problems with rebooting domUs which have vga cards passed through to them, because appearently they don''t get reinitialized and

...ke sure that the GPU firmware is posted > > > + * before trying a reset > > > + */ > > > + if (ioread32(map + 0x2240c) & 0x2) { > > > + pci_info(pdev, > > > + FW_BUG "GPU left initialized by EFI, resetting\n"); > > > + ret = pci_reset_function(pdev); > > > + if (ret < 0) > > > + pci_err(pdev, "Failed to reset GPU: %d\n", ret); > > > + } > > > + > > > + iounmap(map); > > > +out_disable: > > > + pci_disable_device(pdev); > > > +} > > > + > &...

On Mon, Apr 15, 2019 at 02:07:18PM -0400, Lyude Paul wrote: > On Thu, 2019-04-04 at 09:17 -0500, Bjorn Helgaas wrote: > > [+cc Hans, author of 0b2fe6594fa2 ("drm/nouveau: Queue hpd_work on (runtime) > > resume")] > > > > On Fri, Mar 22, 2019 at 06:30:15AM -0500, Bjorn Helgaas wrote: > > > On Thu, Mar 21, 2019 at 05:48:19PM -0500, Bjorn Helgaas wrote: