On Thu, 2016-04-21 at 21:53 +1000, Gavin Shan wrote: > The function eeh_pe_reset_and_recover() is used to recover EEH > error when the passthrou device are transferred to guest and > backwords. The content in the device's config space will be lost
Spelling, as before :) > on PE reset issued in the middle of the recovery. The function > saves/restores it before/after the reset. However, config access > to some adapters like Broadcom BCM5719 at this point will causes > fended PHB. The config space is always blocked and we save 0xFF's "fended" should be "fenced" > that are restored at late point. The memory BARs are totally > corrupted, causing another EEH error upon access to one of the > memory BARs. > > This restores the config space from the content saved to the > EEH device when it's populated, to resolve above issue. > > Fixes: 5cfb20b9 ("powerpc/eeh: Emulate EEH recovery for VFIO devices") > Cc: sta...@vger.kernel.org #v3.18+ > Signed-off-by: Gavin Shan <gws...@linux.vnet.ibm.com> > --- Reviewed-by: Russell Currey <rus...@russell.cc> _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev