Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-19 Thread Will Deacon
On Mon, Jan 19, 2015 at 06:10:08AM +, Pratyush Anand wrote: > On Friday 16 January 2015 09:52 PM, Will Deacon wrote: > > Perhaps you're not removing the BRK instruction properly, and so you try to > > single-step a trapping instruction and end up stepping into the exception? > > No, probably t

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-18 Thread Pratyush Anand
On Friday 16 January 2015 09:52 PM, Will Deacon wrote: On Fri, Jan 16, 2015 at 12:00:09PM +, Pratyush Anand wrote: On Thursday 15 January 2015 10:17 PM, Pratyush Anand wrote: On Tuesday 13 January 2015 11:23 PM, Pratyush Anand wrote: I will still try to find some way to capture enable_db

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-16 Thread Will Deacon
On Fri, Jan 16, 2015 at 12:00:09PM +, Pratyush Anand wrote: > On Thursday 15 January 2015 10:17 PM, Pratyush Anand wrote: > > On Tuesday 13 January 2015 11:23 PM, Pratyush Anand wrote: > >> I will still try to find some way to capture enable_dbg macro path.H > > > > I did instrumented debug tap

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-16 Thread Pratyush Anand
Sorry for writing so many mails...But I have one more closer information which could help to further explain the behavior. See below. On Friday 16 January 2015 05:30 PM, Pratyush Anand wrote: Hi Will, On Thursday 15 January 2015 10:17 PM, Pratyush Anand wrote: Hi Will / Catalin, On Tuesda

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-16 Thread Pratyush Anand
Hi Will, On Thursday 15 January 2015 10:17 PM, Pratyush Anand wrote: Hi Will / Catalin, On Tuesday 13 January 2015 11:23 PM, Pratyush Anand wrote: I will still try to find some way to capture enable_dbg macro path.H I did instrumented debug tap points at all the location from where enable_d

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-15 Thread Pratyush Anand
Hi Will / Catalin, On Tuesday 13 January 2015 11:23 PM, Pratyush Anand wrote: I will still try to find some way to capture enable_dbg macro path.H I did instrumented debug tap points at all the location from where enable_debug macro is called(see attached debug patch). But, I do not see that

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-13 Thread Pratyush Anand
On Tuesday 13 January 2015 09:22 PM, Catalin Marinas wrote: On Tue, Jan 13, 2015 at 06:46:36AM +, Pratyush Anand wrote: On Monday 12 January 2015 11:00 PM, Will Deacon wrote: On Fri, Jan 09, 2015 at 05:13:29PM +, Pratyush Anand wrote: On Friday 09 January 2015 09:16 PM, Will Deacon w

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-13 Thread Catalin Marinas
On Tue, Jan 13, 2015 at 06:46:36AM +, Pratyush Anand wrote: > On Monday 12 January 2015 11:00 PM, Will Deacon wrote: > > On Fri, Jan 09, 2015 at 05:13:29PM +, Pratyush Anand wrote: > >> On Friday 09 January 2015 09:16 PM, Will Deacon wrote: > >>> On Thu, Jan 08, 2015 at 05:28:37PM +, Pr

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-12 Thread Pratyush Anand
On Monday 12 January 2015 11:00 PM, Will Deacon wrote: On Fri, Jan 09, 2015 at 05:13:29PM +, Pratyush Anand wrote: On Friday 09 January 2015 09:16 PM, Will Deacon wrote: On Thu, Jan 08, 2015 at 05:28:37PM +, Pratyush Anand wrote: On Thursday 08 January 2015 09:53 PM, Will Deacon wr

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-12 Thread William Cohen
On 01/12/2015 12:30 PM, Will Deacon wrote: > On Fri, Jan 09, 2015 at 05:13:29PM +, Pratyush Anand wrote: >> >> >> On Friday 09 January 2015 09:16 PM, Will Deacon wrote: >>> On Thu, Jan 08, 2015 at 05:28:37PM +, Pratyush Anand wrote: On Thursday 08 January 2015 09:53 PM, Will Deacon wro

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-12 Thread Will Deacon
On Fri, Jan 09, 2015 at 05:13:29PM +, Pratyush Anand wrote: > > > On Friday 09 January 2015 09:16 PM, Will Deacon wrote: > > On Thu, Jan 08, 2015 at 05:28:37PM +, Pratyush Anand wrote: > >> On Thursday 08 January 2015 09:53 PM, Will Deacon wrote: > >>> On Thu, Jan 08, 2015 at 01:15:58PM +

Re: Query: ARM64: Behavior of el1_dbg exception while executing el0_dbg

2015-01-09 Thread Pratyush Anand
On Friday 09 January 2015 09:16 PM, Will Deacon wrote: On Thu, Jan 08, 2015 at 05:28:37PM +, Pratyush Anand wrote: On Thursday 08 January 2015 09:53 PM, Will Deacon wrote: On Thu, Jan 08, 2015 at 01:15:58PM +, Pratyush Anand wrote: I am trying to test following scenario, which seems