Messages in this thread | | | Date | Sun, 31 May 2015 22:46:09 -0700 (PDT) | Subject | Re: [PATCH v3] sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE | From | David Miller <> |
| |
From: Khalid Aziz <khalid.aziz@oracle.com> Date: Wed, 27 May 2015 10:00:46 -0600
> sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE > > Bit 9 of TTE is CV (Cacheable in V-cache) on sparc v9 processor while > the same bit 9 is MCDE (Memory Corruption Detection Enable) on M7 > processor. This creates a conflicting usage of the same bit. Kernel > sets TTE.cv bit on all pages for sun4v architecture which works well > for sparc v9 but enables memory corruption detection on M7 processor > which is not the intent. This patch adds code to determine if kernel > is running on M7 processor and takes steps to not enable memory > corruption detection in TTE erroneously. > > Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Applied.
| |