Re: Single Graphic Card only for KVM-Guest, not Linux?

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On Mon, 16 Mar 2009 17:34:25 +0100, Oliver Rath wrote:

> Hi,
> 
> what must I do assigning a graphic card pci-device to (i.e.
> winXP-client) guest? In my case, the vga-adapter uses irq 16, so that I
> think, it could be possible to mask out this irq, so that it is free for
> using in the guest. Im deactivating _lots_ of linux-options so linux ist
> not using the graphics adapter anymore, but no access. Is it usefull to
> disable msi-reassigning?
> 
> Always i get the failure:
> 
> pci 0000:00:02.0: power state changed by ACPI to D0 pci 0000:00:02.0:
> PCI INT A -> GSI 16 (level, low) -> IRQ 16 kvm: failed to enable MSI
> device!
> kvm: failed to enable INTx device!
> pci 0000:00:02.0: PCI INT A disabled
> kvm: emulating exchange as write
> 
> What can i do? If some additional information is needet -> email!
> 
> here my actual kernel-line (using actual kvm-git):
> 
> vmlinuz-2.6.29-rc6-x64-core2-kvmgit-00637-g9af6015 root=/dev/sda6
> panic=10 pci=nomsi irq_masq=0x0010

maybe you have to redirect the console of the host to a serial device to 
not take the graphics card? 

console=ttyS1,38400

- Thomas

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