Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-05 Thread Christoffer Dall
On Wed, Nov 04, 2015 at 07:51:58PM +0100, Ard Biesheuvel wrote: > On 4 November 2015 at 19:49, Christopher Covington > wrote: > > On 11/04/2015 08:31 AM, Christoffer Dall wrote: > >> On Tue, Nov 03, 2015 at 01:39:44PM -0600, Rob Herring wrote: > >>> On Tue, Nov 3, 2015 at 1:17 PM, Mario Smarduch

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-04 Thread Peter Hurley
On 11/04/2015 06:28 PM, Mario Smarduch wrote: > I spent time debugging 'earlycon' for pl011, ironically using DEBUG_LL, from > the > looks of it no mmio uart should work for armv7. It appears earlycon_map() > requires a fixed mapping similar to arm64. commit a5f4c561b3b1 ("ARM: 8415/1: early fixm

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-04 Thread Mario Smarduch
On 11/4/2015 10:51 AM, Ard Biesheuvel wrote: > On 4 November 2015 at 19:49, Christopher Covington > wrote: >> On 11/04/2015 08:31 AM, Christoffer Dall wrote: >>> On Tue, Nov 03, 2015 at 01:39:44PM -0600, Rob Herring wrote: On Tue, Nov 3, 2015 at 1:17 PM, Mario Smarduch wrote: >

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-04 Thread Ard Biesheuvel
On 4 November 2015 at 19:49, Christopher Covington wrote: > On 11/04/2015 08:31 AM, Christoffer Dall wrote: >> On Tue, Nov 03, 2015 at 01:39:44PM -0600, Rob Herring wrote: >>> On Tue, Nov 3, 2015 at 1:17 PM, Mario Smarduch >>> wrote: On 11/3/2015 9:55 AM, Will Deacon wrote: > On Tue, No

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-04 Thread Christopher Covington
On 11/04/2015 08:31 AM, Christoffer Dall wrote: > On Tue, Nov 03, 2015 at 01:39:44PM -0600, Rob Herring wrote: >> On Tue, Nov 3, 2015 at 1:17 PM, Mario Smarduch >> wrote: >>> On 11/3/2015 9:55 AM, Will Deacon wrote: On Tue, Nov 03, 2015 at 09:44:52AM -0800, Mario Smarduch wrote: > On 11/

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-04 Thread Christoffer Dall
On Tue, Nov 03, 2015 at 01:39:44PM -0600, Rob Herring wrote: > On Tue, Nov 3, 2015 at 1:17 PM, Mario Smarduch wrote: > > > > > > On 11/3/2015 9:55 AM, Will Deacon wrote: > >> On Tue, Nov 03, 2015 at 09:44:52AM -0800, Mario Smarduch wrote: > >>> On 11/3/2015 8:33 AM, Christopher Covington wrote: >

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-03 Thread Rob Herring
On Tue, Nov 3, 2015 at 1:17 PM, Mario Smarduch wrote: > > > On 11/3/2015 9:55 AM, Will Deacon wrote: >> On Tue, Nov 03, 2015 at 09:44:52AM -0800, Mario Smarduch wrote: >>> On 11/3/2015 8:33 AM, Christopher Covington wrote: On 11/02/2015 06:51 PM, Mario Smarduch wrote: >this is a re-po

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-03 Thread Mario Smarduch
On 11/3/2015 9:55 AM, Will Deacon wrote: > On Tue, Nov 03, 2015 at 09:44:52AM -0800, Mario Smarduch wrote: >> On 11/3/2015 8:33 AM, Christopher Covington wrote: >>> On 11/02/2015 06:51 PM, Mario Smarduch wrote: this is a re-post from couple weeks ago, please take time to review this

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-03 Thread Will Deacon
On Tue, Nov 03, 2015 at 09:44:52AM -0800, Mario Smarduch wrote: > On 11/3/2015 8:33 AM, Christopher Covington wrote: > > On 11/02/2015 06:51 PM, Mario Smarduch wrote: > >>this is a re-post from couple weeks ago, please take time to review > >> this > >> simple patch which simplifies DEBUG_LL

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-03 Thread Mario Smarduch
On 11/3/2015 8:33 AM, Christopher Covington wrote: > Hi Mario, > > On 11/02/2015 06:51 PM, Mario Smarduch wrote: >> Hello, >>this is a re-post from couple weeks ago, please take time to review this >> simple patch which simplifies DEBUG_LL and prevents kernel crash on virtual >> platforms.

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-03 Thread Russell King - ARM Linux
On Tue, Nov 03, 2015 at 11:33:17AM -0500, Christopher Covington wrote: > > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug > > index a2e16f9..d126bd4 100644 > > --- a/arch/arm/Kconfig.debug > > +++ b/arch/arm/Kconfig.debug > > @@ -1155,6 +1155,28 @@ choice > > This option

Re: [PATCH] KVM/arm: kernel low level debug support for ARM32 virtual platforms

2015-11-03 Thread Christopher Covington
Hi Mario, On 11/02/2015 06:51 PM, Mario Smarduch wrote: > Hello, >this is a re-post from couple weeks ago, please take time to review this > simple patch which simplifies DEBUG_LL and prevents kernel crash on virtual > platforms. > > Before this patch DEBUG_LL for 'dummy virtual machine': >