From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gordan Bobic Subject: Re: VGA passthrough is not working Date: Mon, 09 Jun 2014 12:51:48 +0100 Message-ID: <53959FD4.2020601@bobich.net> References: <53959CF9.1080501@ntc-vulkan.ru> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <53959CF9.1080501@ntc-vulkan.ru> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org Your Nvidia card as a 16GB IOMEM region? I've never an Nvidia card that maps more than 256MB. Can qemu (traditional or upstream) even handle this? Gordan On 06/09/2014 12:39 PM, Maxim Gordeev wrote: > Hi! > > I have is trouble of VGA passthrough! > My server: SuperMicro, Motherboard: X9DRG-qf. Latest version BIOS(custom > BIOS for X9DRG-QF motherboard which set MMIO Base Address to 38BITS) > CPU: 2xE5-2690v2 > RAM: 64G > GPU card: PCIe Nvidia Tesla K40(12G Ram) > OS: Debian 7 > Kernel: 3.14-1-amd64 > HyperVisor: (XEN) Xen version 4.4.1-pre (root@ntc-vulkan.ru) (gcc > (Debian 4.8.3-2) 4.8.3) debug=n Fri Jun 6 12:56:42 CDT 2014. Also I try > use version 4.3 from offical repositories. > > I trying use passthru GPU card into Virtual Machine, but this is not > possible... >> Guest do not start and get me message: >> pt_pci_write_config: [00:04:0] Warning: Guest attempt to set address >> to unused Base Address Register. [Offset:14h][Length:4] >> pt_pci_write_config: Internal error: Invalid write emulation return >> value[-1]. I/O emulator exit. > This is Xen 4.4. > > > I try use Xen 4.3 and my VM start, but lspci message: > >> Region 0: Memory at c5000000 (32-bit, non-prefetchable) [disabled] > [size=16M] > >> Region 1: Memory at (64-bit, prefetchable) [size=16G] > >> Region 3: Memory at 381c00000000 (64-bit, prefetchable) [disabled] > [size=32M] > > Please, look at attach file: > 1. nvidia-installer.log - xen 4.3 > 2. lspci_itoVM - xen 4.3 > 3. lspci_NVIDIA - xen 4.3 This is lspci output into real hardware > SuperMicro. > > > BUT! ATI Firepro s10000 is nice work! > > Ati is having 6Gb RAm. > > k40 work only in 64bit map io PCI > > > Nvidia K40 work only 64bit map io PCI. > I tried to disable this parametrs in BIOS(Memory Mapped I/O above 4GB). > But I received of mistake on my server. > > > What is going on? > Are you have workaround? > Please, help! > > Thanks! > > -- > Best regards,Maxim! > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel >