Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-21 Thread Roger Pau Monné
On Fri, Feb 17, 2017 at 02:01:15PM -0600, Venu Busireddy wrote: > On Fri, Feb 17, 2017 at 02:29:32PM -0500, Konrad Rzeszutek Wilk wrote: > > On Fri, Feb 17, 2017 at 12:27:25PM -0700, Tamas K Lengyel wrote: > > > On Fri, Feb 17, 2017 at 11:56 AM, Konrad Rzeszutek Wilk > > >

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-20 Thread Tian, Kevin
> From: Jan Beulich [mailto:jbeul...@suse.com] > Sent: Friday, February 17, 2017 4:21 PM > > I think the commit description is pretty clear. Especially this part > > "This could have the nice side effect of allowing to use "iommu=off" > even when x2APIC was pre-enabled by the BIOS (in which

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Tamas K Lengyel
On Fri, Feb 17, 2017 at 2:31 PM, Andrew Cooper wrote: > On 17/02/17 21:28, Tamas K Lengyel wrote: >> On Fri, Feb 17, 2017 at 1:01 PM, Venu Busireddy >> wrote: >>> On Fri, Feb 17, 2017 at 02:29:32PM -0500, Konrad Rzeszutek Wilk wrote: On

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Andrew Cooper
On 17/02/17 21:28, Tamas K Lengyel wrote: > On Fri, Feb 17, 2017 at 1:01 PM, Venu Busireddy > wrote: >> On Fri, Feb 17, 2017 at 02:29:32PM -0500, Konrad Rzeszutek Wilk wrote: >>> On Fri, Feb 17, 2017 at 12:27:25PM -0700, Tamas K Lengyel wrote: On Fri, Feb 17, 2017

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Tamas K Lengyel
On Fri, Feb 17, 2017 at 1:01 PM, Venu Busireddy wrote: > On Fri, Feb 17, 2017 at 02:29:32PM -0500, Konrad Rzeszutek Wilk wrote: >> On Fri, Feb 17, 2017 at 12:27:25PM -0700, Tamas K Lengyel wrote: >> > On Fri, Feb 17, 2017 at 11:56 AM, Konrad Rzeszutek Wilk >> >

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Venu Busireddy
On Fri, Feb 17, 2017 at 02:29:32PM -0500, Konrad Rzeszutek Wilk wrote: > On Fri, Feb 17, 2017 at 12:27:25PM -0700, Tamas K Lengyel wrote: > > On Fri, Feb 17, 2017 at 11:56 AM, Konrad Rzeszutek Wilk > > wrote: > > > . snip.. > > >> >> > Given this commit is pretty old, I'm

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Konrad Rzeszutek Wilk
On Fri, Feb 17, 2017 at 12:27:25PM -0700, Tamas K Lengyel wrote: > On Fri, Feb 17, 2017 at 11:56 AM, Konrad Rzeszutek Wilk > wrote: > > . snip.. > >> >> > Given this commit is pretty old, I'm also curious why it's only > >> >> > reported > >> >> > on 4.8. Tamas, did you

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Tamas K Lengyel
On Fri, Feb 17, 2017 at 11:56 AM, Konrad Rzeszutek Wilk wrote: > . snip.. >> >> > Given this commit is pretty old, I'm also curious why it's only reported >> >> > on 4.8. Tamas, did you succeed with iommu=0 pre 4.8, or 4.8 happens >> >> > to be the one upon which you first

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Konrad Rzeszutek Wilk
. snip.. > >> > Given this commit is pretty old, I'm also curious why it's only reported > >> > on 4.8. Tamas, did you succeed with iommu=0 pre 4.8, or 4.8 happens > >> > to be the one upon which you first tried iommu=0 on a platform supporting > >> > interrupt remapping? > >> > >> It just happens

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Tamas K Lengyel
On Fri, Feb 17, 2017 at 11:48 AM, Konrad Rzeszutek Wilk wrote: > On Fri, Feb 17, 2017 at 11:42:20AM -0700, Tamas K Lengyel wrote: >> On Thu, Feb 16, 2017 at 11:53 PM, Tian, Kevin wrote: >> >> From: Tian, Kevin >> >> Sent: Friday, February 17, 2017

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Konrad Rzeszutek Wilk
On Fri, Feb 17, 2017 at 11:42:20AM -0700, Tamas K Lengyel wrote: > On Thu, Feb 16, 2017 at 11:53 PM, Tian, Kevin wrote: > >> From: Tian, Kevin > >> Sent: Friday, February 17, 2017 11:35 AM > >> > >> > >> > >> Or wait - do you have the same issue if you use > >> > >>

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Tamas K Lengyel
On Thu, Feb 16, 2017 at 11:53 PM, Tian, Kevin wrote: >> From: Tian, Kevin >> Sent: Friday, February 17, 2017 11:35 AM >> > >> >> > >> Or wait - do you have the same issue if you use >> > >> "iommu=no,no-intremap"? In which case the problem would be >> > >> that "iommu=no"

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Tamas K Lengyel
On Fri, Feb 17, 2017 at 1:20 AM, Jan Beulich wrote: On 17.02.17 at 07:53, wrote: >>> From: Tian, Kevin >>> Sent: Friday, February 17, 2017 11:35 AM >>> > >> >>> > >> Or wait - do you have the same issue if you use >>> > >> "iommu=no,no-intremap"? In

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Jan Beulich
>>> On 17.02.17 at 07:53, wrote: >> From: Tian, Kevin >> Sent: Friday, February 17, 2017 11:35 AM >> > >> >> > >> Or wait - do you have the same issue if you use >> > >> "iommu=no,no-intremap"? In which case the problem would be >> > >> that "iommu=no" should clear more

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-17 Thread Jan Beulich
>>> On 17.02.17 at 04:35, wrote: > Feng just left Intel. Let me take a look at code to understand the > rationale behind. Do you know if he means to stay VT-d maintainer? If yes, do you have a new email address of him? If not, would you mind sending an update to

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-16 Thread Tian, Kevin
> From: Tian, Kevin > Sent: Friday, February 17, 2017 11:35 AM > > >> > > >> Or wait - do you have the same issue if you use > > >> "iommu=no,no-intremap"? In which case the problem would be > > >> that "iommu=no" should clear more than just "iommu_enable", or > > >> code checking iommu_intremap

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-16 Thread Tian, Kevin
> From: Jan Beulich [mailto:jbeul...@suse.com] > Sent: Thursday, February 16, 2017 5:32 PM > > >>> On 15.02.17 at 20:30, wrote: > > On Wed, Feb 15, 2017 at 3:03 AM, Jan Beulich wrote: > > On 15.02.17 at 00:21, wrote:

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-16 Thread Jan Beulich
>>> On 15.02.17 at 20:30, wrote: > On Wed, Feb 15, 2017 at 3:03 AM, Jan Beulich wrote: > On 15.02.17 at 00:21, wrote: >>> On 14/02/2017 22:47, Tamas K Lengyel wrote: (XEN) Switched to APIC driver x2apic_cluster.

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-15 Thread Tamas K Lengyel
On Wed, Feb 15, 2017 at 12:30 PM, Tamas K Lengyel wrote: > On Wed, Feb 15, 2017 at 3:03 AM, Jan Beulich wrote: > On 15.02.17 at 00:21, wrote: >>> On 14/02/2017 22:47, Tamas K Lengyel wrote: (XEN) Switched to APIC

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-15 Thread Tamas K Lengyel
On Wed, Feb 15, 2017 at 3:03 AM, Jan Beulich wrote: On 15.02.17 at 00:21, wrote: >> On 14/02/2017 22:47, Tamas K Lengyel wrote: >>> (XEN) Switched to APIC driver x2apic_cluster. >>> (XEN) XSM Framework v1.0.0 initialized >>> (XEN) Flask: 128

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-15 Thread Jan Beulich
>>> On 15.02.17 at 00:21, wrote: > On 14/02/2017 22:47, Tamas K Lengyel wrote: >> (XEN) Switched to APIC driver x2apic_cluster. >> (XEN) XSM Framework v1.0.0 initialized >> (XEN) Flask: 128 avtab hash slots, 394 rules. >> (XEN) Flask: 128 avtab hash slots, 394 rules. >>

Re: [Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-14 Thread Andrew Cooper
On 14/02/2017 22:47, Tamas K Lengyel wrote: > (XEN) Switched to APIC driver x2apic_cluster. > (XEN) XSM Framework v1.0.0 initialized > (XEN) Flask: 128 avtab hash slots, 394 rules. > (XEN) Flask: 128 avtab hash slots, 394 rules. > (XEN) Flask: 5 users, 3 roles, 43 types, 2 bools > (XEN) Flask:

[Xen-devel] Unable to boot Xen 4.8 with iommu=0

2017-02-14 Thread Tamas K Lengyel
Hi all, I'm having some strange issues with Xen 4.8 when I try to boot with iommu disabled. (XEN) Xen version 4.8.0 (root@lan) (gcc (Debian 5.4.1-4) 5.4.1 20161202) debug=n Tue Feb 14 15:32:55 MST 2017 (XEN) Latest ChangeSet: (XEN) Bootloader: GRUB 2.02~beta3-4 (XEN) Command line: placeholder