[RFC PATCH v0 0/2] ibm,dynamic-memory-v2 fix

Bharata B Rao bharata at linux.vnet.ibm.com
Thu Feb 22 00:41:02 AEDT 2018


On Wed, Feb 21, 2018 at 11:27:20PM +1100, Balbir Singh wrote:
> On Wed, Feb 21, 2018 at 9:36 PM, Bharata B Rao
> <bharata at linux.vnet.ibm.com> wrote:
> > Patch 1 fixes a bug that results in unexpected flag bit in
> > ibm,dynamic-memory-v2 DT property and wrong number of entries
> > getting created in the same property during hotplug.
> >
> 
> Could you please elaborate on what this means?

Described in 1/2 patch.

> Is there a test case -
> how do we reproduce this?

Hotplug some memory and check the entries in ibm,dynamic-memory-v2 and also
check the flags there, you will see DRMEM_LMB_RESERVED set, which
shouldn't be set.

You would need QEMU which supports ibm,dynamic-memory-v2. I have posted
the initial patches for that at:

http://lists.gnu.org/archive/html/qemu-ppc/2018-02/msg00236.html

Regards,
Bharata.



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