Re: [PATCH v9 06/29] x86/mpx: Use signed variables to compute effective addresses

2017-10-05 Thread Neri, Ricardo
On Thu, 2017-10-05 at 11:41 +0200, Borislav Petkov wrote: > On Tue, Oct 03, 2017 at 08:54:09PM -0700, Ricardo Neri wrote: > > > > Even though memory addresses are unsigned, the operands used to compute the > > effective address do have a sign. This is true for ModRM.rm, SIB.base, > > SIB.index as

Re: [PATCH v9 06/29] x86/mpx: Use signed variables to compute effective addresses

2017-10-05 Thread Neri, Ricardo
On Thu, 2017-10-05 at 11:41 +0200, Borislav Petkov wrote: > On Tue, Oct 03, 2017 at 08:54:09PM -0700, Ricardo Neri wrote: > > > > Even though memory addresses are unsigned, the operands used to compute the > > effective address do have a sign. This is true for ModRM.rm, SIB.base, > > SIB.index as

Re: [PATCH v8 13/28] x86/insn-eval: Add utility function to get segment descriptor

2017-09-27 Thread Neri, Ricardo
On Tue, 2017-09-26 at 20:05 +0200, Borislav Petkov wrote: > On Fri, Aug 18, 2017 at 05:27:54PM -0700, Ricardo Neri wrote: > > > > The segment descriptor contains information that is relevant to how > > linear > > addresses need to be computed. It contains the default size of > > addresses > > as

Re: [PATCH v8 13/28] x86/insn-eval: Add utility function to get segment descriptor

2017-09-27 Thread Neri, Ricardo
On Tue, 2017-09-26 at 20:05 +0200, Borislav Petkov wrote: > On Fri, Aug 18, 2017 at 05:27:54PM -0700, Ricardo Neri wrote: > > > > The segment descriptor contains information that is relevant to how > > linear > > addresses need to be computed. It contains the default size of > > addresses > > as

Re: [PATCH v7 00/26] x86: Enable User-Mode Instruction Prevention

2017-05-26 Thread Neri, Ricardo
Hi again Ingo, Thomas, On Wed, 2017-05-17 at 11:42 -0700, Ricardo Neri wrote: > Hi Ingo, Thomas, > > On Fri, 2017-05-05 at 11:16 -0700, Ricardo Neri wrote: > > This is v7 of this series. The six previous submissions can be found > > here [1], here [2], here[3], here[4], here[5] and here[6]. This

Re: [PATCH v7 00/26] x86: Enable User-Mode Instruction Prevention

2017-05-26 Thread Neri, Ricardo
Hi again Ingo, Thomas, On Wed, 2017-05-17 at 11:42 -0700, Ricardo Neri wrote: > Hi Ingo, Thomas, > > On Fri, 2017-05-05 at 11:16 -0700, Ricardo Neri wrote: > > This is v7 of this series. The six previous submissions can be found > > here [1], here [2], here[3], here[4], here[5] and here[6]. This

Re: 4.9-rc1 boot regression, ambiguous bisect result

2016-11-02 Thread Neri, Ricardo
On Sun, 2016-10-30 at 08:59 -0700, Dan Williams wrote: > On Sun, Oct 30, 2016 at 5:08 AM, Thorsten Leemhuis > wrote: > > JFYI: I added this report to the list of regressions for Linux 4.9. I'll > > watch this thread for further updates on this issue to document progress

Re: 4.9-rc1 boot regression, ambiguous bisect result

2016-11-02 Thread Neri, Ricardo
On Sun, 2016-10-30 at 08:59 -0700, Dan Williams wrote: > On Sun, Oct 30, 2016 at 5:08 AM, Thorsten Leemhuis > wrote: > > JFYI: I added this report to the list of regressions for Linux 4.9. I'll > > watch this thread for further updates on this issue to document progress > > in my weekly reports.