Re: [Xen-devel] [PATCH RFC] pvh: set need_iommu early

2015-01-23 Thread Jan Beulich
>>> On 22.01.15 at 22:49, wrote: > On Thu, Jan 22, 2015 at 07:08:22AM +, Tian, Kevin wrote: >> > From: Elena Ufimtseva [mailto:elena.ufimts...@oracle.com] >> > Sent: Thursday, January 22, 2015 4:53 AM >> > >> > need_iommu has to be set earler for dom0 pvh specific init >> > functions. If not

Re: [Xen-devel] [PATCH RFC] pvh: set need_iommu early

2015-01-22 Thread Elena Ufimtseva
On Thu, Jan 22, 2015 at 07:08:22AM +, Tian, Kevin wrote: > > From: Elena Ufimtseva [mailto:elena.ufimts...@oracle.com] > > Sent: Thursday, January 22, 2015 4:53 AM > > > > need_iommu has to be set earler for dom0 pvh specific init > > functions. If not enabled, mmio regions are not mapped with

Re: [Xen-devel] [PATCH RFC] pvh: set need_iommu early

2015-01-22 Thread Jan Beulich
>>> On 21.01.15 at 21:53, wrote: Apart from the issues with this submission that Kevin already mentioned, please ... > --- a/xen/arch/x86/domain_build.c > +++ b/xen/arch/x86/domain_build.c > @@ -1500,7 +1500,9 @@ int __init construct_dom0( > > if ( is_pvh_domain(d) ) > { > -/

Re: [Xen-devel] [PATCH RFC] pvh: set need_iommu early

2015-01-21 Thread Tian, Kevin
> From: Elena Ufimtseva [mailto:elena.ufimts...@oracle.com] > Sent: Thursday, January 22, 2015 4:53 AM > > need_iommu has to be set earler for dom0 pvh specific init > functions. If not enabled, mmio regions are not mapped with iommu > during domain construction. > > This was discovered when work

[Xen-devel] [PATCH RFC] pvh: set need_iommu early

2015-01-21 Thread Elena Ufimtseva
need_iommu has to be set earler for dom0 pvh specific init functions. If not enabled, mmio regions are not mapped with iommu during domain construction. This was discovered when working on booting problems of pvh dom0 on two different machines (ThinkCentre M and Dell 5600T). On ThinkCentre during