On Tue, Nov 11, 2008 at 07:52:18AM -0500, Josh Boyer wrote: > On Mon, Nov 10, 2008 at 05:24:34PM -0600, Hollis Blanchard wrote: > >The current CHIP11 errata truncates the device tree memory node, and subtracts > >(hardcoded) 4096 bytes. This breaks kernels with larger PAGE_SIZE, since the > >bootmem allocator assumes that total memory is a multiple of PAGE_SIZE. > > > >Instead, use a device tree memory reservation to reserve only the 256 bytes > >actually affected by the errata, leaving the total memory size unaltered. > > > >Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx> > > > >--- > > > >Using large pages results in a huge performance improvement for KVM, and this > >patch is required to make Ilya's large page patch work. David and/or Josh, > >please apply. > > The patch looks fine to me, and once David acks the fdt parts I'll apply > for -next. I'll try to do some testing later today as well, since I have > one of the boards with the Errata. Um.. I sent something the fdt stuff a while back, but didn't get a response. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
