Re: [Xen-devel] bug suspcion and proposed modification when xen-pciback failed to map an irq (-19) to a domU

2019-12-02 Thread DOZ, MARC (ext)
r the help -Original Message- From: Jan Beulich Sent: Friday, November 29, 2019 2:32 PM To: DOZ, MARC (ext) Cc: xen-devel@lists.xenproject.org Subject: Re: [Xen-devel] bug suspcion and proposed modification when xen-pciback failed to map an irq (-19) to a domU On 29.11.2019 13:34, DOZ, MARC (e

Re: [Xen-devel] bug suspcion and proposed modification when xen-pciback failed to map an irq (-19) to a domU

2019-11-29 Thread DOZ, MARC (ext)
>Except that this is not a "fix", but the introduction of a security >vulnerability (permitting interrupt setup on un-owned devices). See XSA-237, >which actually changed it in the opposite direction of what you're proposing. Ok, I found it : https://xenbits.xen.org/xsa/xsa237-4.5/0001-x86-dont

[Xen-devel] bug suspcion and proposed modification when xen-pciback failed to map an irq (-19) to a domU

2019-11-29 Thread DOZ, MARC (ext)
Hello, I would like to paravirtualize several instances of a minimal Linux solution with xen. Guest OS have a PCI passthrough access on the ethernet interfaces. I use a pvops kernel 4.4.122 , xen 4.11.2 and an x86 platform. My hardware platform doesn't support IOMMU but I doesn't need hard segm