Re: [PATCH v6 4/4] sparc64: Add support for ADI (Application Data Integrity)

2017-03-07 Thread Khalid Aziz
On 03/06/2017 06:25 PM, Anthony Yznaga wrote: > >> On Mar 6, 2017, at 4:31 PM, Khalid Aziz wrote: >> >> On 03/06/2017 05:13 PM, Anthony Yznaga wrote: >>> On Feb 28, 2017, at 10:35 AM, Khalid Aziz wrote: diff --git a/arch/sparc/kernel/etrap_64.S b/arch/sparc/kernel/etrap_64.S

Re: [PATCH v6 4/4] sparc64: Add support for ADI (Application Data Integrity)

2017-03-06 Thread Khalid Aziz
On 03/06/2017 05:13 PM, Anthony Yznaga wrote: On Feb 28, 2017, at 10:35 AM, Khalid Aziz wrote: diff --git a/arch/sparc/kernel/etrap_64.S b/arch/sparc/kernel/etrap_64.S index 1276ca2..7be33bf 100644 --- a/arch/sparc/kernel/etrap_64.S +++ b/arch/sparc/kernel/etrap_64.S @@ -132,7 +132,33 @@ etra

Re: [PATCH v6 4/4] sparc64: Add support for ADI (Application Data Integrity)

2017-03-06 Thread Anthony Yznaga
> On Mar 6, 2017, at 4:31 PM, Khalid Aziz wrote: > > On 03/06/2017 05:13 PM, Anthony Yznaga wrote: >> >>> On Feb 28, 2017, at 10:35 AM, Khalid Aziz wrote: >>> >>> diff --git a/arch/sparc/kernel/etrap_64.S b/arch/sparc/kernel/etrap_64.S >>> index 1276ca2..7be33bf 100644 >>> --- a/arch/sparc/ke

[PATCH v6 4/4] sparc64: Add support for ADI (Application Data Integrity)

2017-02-28 Thread Khalid Aziz
ADI is a new feature supported on SPARC M7 and newer processors to allow hardware to catch rogue accesses to memory. ADI is supported for data fetches only and not instruction fetches. An app can enable ADI on its data pages, set version tags on them and use versioned addresses to access the data p