On 07/19/2012 12:16 PM, Stefan Hajnoczi wrote: > On Thu, Jul 19, 2012 at 10:14 AM, Stefan Hajnoczi <stefa...@gmail.com> wrote: >> On Wed, Jul 18, 2012 at 7:29 PM, Michael S. Tsirkin <m...@redhat.com> wrote: >>> On Wed, Jul 18, 2012 at 04:07:33PM +0100, Stefan Hajnoczi wrote: >>>> Support >4 GB physical memory accesses. >>>> >>>> Signed-off-by: Stefan Hajnoczi <stefa...@linux.vnet.ibm.com> >>> >>> Need some sane APIs, this is just too scary. >> >> Yes, this prototype has (at least) two layering violations: >> 1. Bypassing QEMU's memory subsystem because it isn't thread-safe. > > Maybe we can use MemoryListener to fix this, although we need to take > care of thread-safety.
Better to fix up the memory core. It should be relatively easy to rcu-ify it, as it already works by building a new memory map instead of updating it in place. Currently it has one root pointer, all that is needed is to build it into a temporary pointer, then use rcu_assign_pointer() to atomically switch the memory map. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
