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[Qemu-devel] VFIO bug with Sata controler (AsMedia1061)


From: Valentin Meriel
Subject: [Qemu-devel] VFIO bug with Sata controler (AsMedia1061)
Date: Mon, 2 Dec 2013 00:52:16 +0100

Hello,

I want to report to you a really big bug.

vfio passthrough dont works with Sata controler (an AsMedia 1061) ! When i try to use vfio with this controler it work only once.

When i use vfio for VGA i can reboot (or shutdown and start again) my VM with out problem, but for any other PCI card the VM refuse to reboot.

In dmesg i have this error :

[  404.206866] dmar: DRHD: handling fault status reg 2
[  404.206870] dmar: DMAR:[DMA Write] Request device [07:00.0] fault addr 2affdf000
[  404.206870] DMAR:[fault reason 05] PTE Write access is not set
[  404.206877] dmar: DRHD: handling fault status reg 2
[  404.206879] dmar: DMAR:[DMA Read] Request device [07:00.0] fault addr 2affda000
[  404.206879] DMAR:[fault reason 06] PTE Read access is not set

Thanks.

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