Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-19 Thread Christoffer Dall
On Tue, Jan 27, 2015 at 12:33:26PM +0530, Pranavkumar Sawargaonkar wrote: > In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned > in the dt are 4K aligned. This breaks KVM when kernel is built with 64K page > size due to size alignment checking in vgic driver for VCPU Control

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-19 Thread Rob Herring
On Tue, Jan 27, 2015 at 1:03 AM, Pranavkumar Sawargaonkar wrote: > In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned > in the dt are 4K aligned. This breaks KVM when kernel is built with 64K page > size due to size alignment checking in vgic driver for VCPU Control and > V

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-19 Thread Christoffer Dall
On Thu, Feb 19, 2015 at 12:23:15PM -0600, Rob Herring wrote: > On Tue, Jan 27, 2015 at 1:03 AM, Pranavkumar Sawargaonkar > wrote: > > In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned > > in the dt are 4K aligned. This breaks KVM when kernel is built with 64K page > > size

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-21 Thread Rob Herring
On Thu, Feb 19, 2015 at 1:03 PM, Christoffer Dall wrote: > On Thu, Feb 19, 2015 at 12:23:15PM -0600, Rob Herring wrote: >> On Tue, Jan 27, 2015 at 1:03 AM, Pranavkumar Sawargaonkar >> wrote: >> > In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned >> > in the dt are 4K alig

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-21 Thread Peter Maydell
On 22 February 2015 at 06:56, Rob Herring wrote: > On Thu, Feb 19, 2015 at 1:03 PM, Christoffer Dall > wrote: >> It matters if you want to ensure that the 64K page you are assigning to >> a guest for the GIC virtual CPU interface contains only GIC virtual CPU >> mappings, and not other random stu

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-23 Thread Christoffer Dall
On Sat, Feb 21, 2015 at 03:56:17PM -0600, Rob Herring wrote: > On Thu, Feb 19, 2015 at 1:03 PM, Christoffer Dall > wrote: > > On Thu, Feb 19, 2015 at 12:23:15PM -0600, Rob Herring wrote: > >> On Tue, Jan 27, 2015 at 1:03 AM, Pranavkumar Sawargaonkar > >> wrote: > >> > In APM X-Gene, GIC register

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-23 Thread Jon Masters
Sorry about top post. Quick comment in reply to Seattle point below - yes, it does indeed support 64K and already has the right DTS. -- Computer Architect | Sent from my #ARM Powered Mobile Device On Feb 23, 2015 4:14 AM, Christoffer Dall wrote: > > On Sat, Feb 21, 2015 at 03:56:17PM -0600, Ro

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-23 Thread Pranavkumar Sawargaonkar
Hi Rob, On Mon, Feb 23, 2015 at 10:09 PM, Rob Herring wrote: > On Mon, Feb 23, 2015 at 6:07 AM, Christoffer Dall > wrote: >> On Sat, Feb 21, 2015 at 03:56:17PM -0600, Rob Herring wrote: >>> On Thu, Feb 19, 2015 at 1:03 PM, Christoffer Dall >>> wrote: >>> > On Thu, Feb 19, 2015 at 12:23:15PM -06

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-24 Thread Rob Herring
On Tue, Feb 24, 2015 at 12:34 AM, Pranavkumar Sawargaonkar wrote: > Hi Rob, > > On Mon, Feb 23, 2015 at 10:09 PM, Rob Herring wrote: >> On Mon, Feb 23, 2015 at 6:07 AM, Christoffer Dall >> wrote: >>> On Sat, Feb 21, 2015 at 03:56:17PM -0600, Rob Herring wrote: On Thu, Feb 19, 2015 at 1:03 P

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-02-26 Thread Pranavkumar Sawargaonkar
Hi Rob, On Tue, Feb 24, 2015 at 8:00 PM, Rob Herring wrote: > On Tue, Feb 24, 2015 at 12:34 AM, Pranavkumar Sawargaonkar > wrote: >> Hi Rob, >> >> On Mon, Feb 23, 2015 at 10:09 PM, Rob Herring wrote: >>> On Mon, Feb 23, 2015 at 6:07 AM, Christoffer Dall >>> wrote: On Sat, Feb 21, 2015 at

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-03-11 Thread Marc Zyngier
On 27/01/15 07:03, Pranavkumar Sawargaonkar wrote: > In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned > in the dt are 4K aligned. This breaks KVM when kernel is built with 64K page > size due to size alignment checking in vgic driver for VCPU Control and > VCPU register. >

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-03-11 Thread Feng Kan
On Wed, Mar 11, 2015 at 7:53 AM, Marc Zyngier wrote: > On 27/01/15 07:03, Pranavkumar Sawargaonkar wrote: >> In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned >> in the dt are 4K aligned. This breaks KVM when kernel is built with 64K page >> size due to size alignment chec

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-03-11 Thread Marc Zyngier
On 11/03/15 17:19, Feng Kan wrote: > On Wed, Mar 11, 2015 at 7:53 AM, Marc Zyngier wrote: >> On 27/01/15 07:03, Pranavkumar Sawargaonkar wrote: >>> In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned >>> in the dt are 4K aligned. This breaks KVM when kernel is built with 64K

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-03-11 Thread Marc Zyngier
On 11/03/15 17:57, Feng Kan wrote: > On Wed, Mar 11, 2015 at 10:31 AM, Marc Zyngier wrote: >> On 11/03/15 17:19, Feng Kan wrote: >>> On Wed, Mar 11, 2015 at 7:53 AM, Marc Zyngier wrote: On 27/01/15 07:03, Pranavkumar Sawargaonkar wrote: > In APM X-Gene, GIC register space is 64K aligned

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-03-11 Thread Pranavkumar Sawargaonkar
Hi Marc, On Wed, Mar 11, 2015 at 11:47 PM, Marc Zyngier wrote: > On 11/03/15 17:57, Feng Kan wrote: >> On Wed, Mar 11, 2015 at 10:31 AM, Marc Zyngier wrote: >>> On 11/03/15 17:19, Feng Kan wrote: On Wed, Mar 11, 2015 at 7:53 AM, Marc Zyngier wrote: > On 27/01/15 07:03, Pranavkumar Sawa

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-03-12 Thread Feng Kan
On Wed, Mar 11, 2015 at 10:31 AM, Marc Zyngier wrote: > On 11/03/15 17:19, Feng Kan wrote: >> On Wed, Mar 11, 2015 at 7:53 AM, Marc Zyngier wrote: >>> On 27/01/15 07:03, Pranavkumar Sawargaonkar wrote: In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned in the dt

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-03-12 Thread Marc Zyngier
[adding RobH to the CC list, as he was commenting on the subject earlier] Hi Pranav, On 12/03/15 03:52, Pranavkumar Sawargaonkar wrote: > Hi Marc, > > On Wed, Mar 11, 2015 at 11:47 PM, Marc Zyngier wrote: >> On 11/03/15 17:57, Feng Kan wrote: >>> On Wed, Mar 11, 2015 at 10:31 AM, Marc Zyngier

Re: [PATCH] arm64: dts: Fix GIC reg sizes for APM X-Gene

2015-03-19 Thread Marc Zyngier
On 24/02/15 06:34, Pranavkumar Sawargaonkar wrote: > Hi Rob, > > On Mon, Feb 23, 2015 at 10:09 PM, Rob Herring wrote: >> On Mon, Feb 23, 2015 at 6:07 AM, Christoffer Dall >> wrote: >>> On Sat, Feb 21, 2015 at 03:56:17PM -0600, Rob Herring wrote: On Thu, Feb 19, 2015 at 1:03 PM, Christoffer