Re: [Xen-devel] [PATCH v2 2/4] x86/MSI-X: access MSI-X table only after having enabled MSI-X

2015-04-17 Thread Jan Beulich
On 16.04.15 at 20:21, konrad.w...@oracle.com wrote: What kernel are you using? Or better yet - what branch/tree could one find it at? As always, I'm personally using my own kernel, not in any branch/tree. But for all purposes here, our Kernel-of-the-Day should be good enough, i.e. the stuff

Re: [Xen-devel] [PATCH v2 2/4] x86/MSI-X: access MSI-X table only after having enabled MSI-X

2015-04-17 Thread Jan Beulich
On 15.04.15 at 19:41, konrad.w...@oracle.com wrote: On Mon, Apr 13, 2015 at 10:05:14AM +0100, Jan Beulich wrote: On 10.04.15 at 22:02, konrad.w...@oracle.com wrote: On Wed, Mar 25, 2015 at 04:39:49PM +, Jan Beulich wrote: As done in Linux by f598282f51 (PCI: Fix the NIU MSI-X problem

Re: [Xen-devel] [PATCH v2 2/4] x86/MSI-X: access MSI-X table only after having enabled MSI-X

2015-04-16 Thread Jan Beulich
On 15.04.15 at 19:41, konrad.w...@oracle.com wrote: On Mon, Apr 13, 2015 at 10:05:14AM +0100, Jan Beulich wrote: You mentioning XSA-120 and its addendum - are these requirements for the problem to be seen? I admit I may have tested a PV guest only with an SR-IOV VF (and only a HVM guest also

Re: [Xen-devel] [PATCH v2 2/4] x86/MSI-X: access MSI-X table only after having enabled MSI-X

2015-04-16 Thread Konrad Rzeszutek Wilk
On Thu, Apr 16, 2015 at 08:43:30AM +0100, Jan Beulich wrote: On 15.04.15 at 19:41, konrad.w...@oracle.com wrote: On Mon, Apr 13, 2015 at 10:05:14AM +0100, Jan Beulich wrote: You mentioning XSA-120 and its addendum - are these requirements for the problem to be seen? I admit I may have

Re: [Xen-devel] [PATCH v2 2/4] x86/MSI-X: access MSI-X table only after having enabled MSI-X

2015-04-15 Thread Konrad Rzeszutek Wilk
On Mon, Apr 13, 2015 at 10:05:14AM +0100, Jan Beulich wrote: On 10.04.15 at 22:02, konrad.w...@oracle.com wrote: On Wed, Mar 25, 2015 at 04:39:49PM +, Jan Beulich wrote: As done in Linux by f598282f51 (PCI: Fix the NIU MSI-X problem in a better way) and its broken predecessor, make

Re: [Xen-devel] [PATCH v2 2/4] x86/MSI-X: access MSI-X table only after having enabled MSI-X

2015-04-13 Thread Jan Beulich
On 10.04.15 at 22:02, konrad.w...@oracle.com wrote: On Wed, Mar 25, 2015 at 04:39:49PM +, Jan Beulich wrote: As done in Linux by f598282f51 (PCI: Fix the NIU MSI-X problem in a better way) and its broken predecessor, make sure we don't access the MSI-X table without having enabled MSI-X