search for: address_space_transl

On Mon, Apr 20, 2015 at 09:10:02PM +0200, Paolo Bonzini wrote: > > > On 20/04/2015 19:36, Michael S. Tsirkin wrote: > > At the implementation level, there's one big issue you seem to have > > missed: DMA to invalid memory addresses causes a crash in memory core. > > I'm not sure whether it makes sense to recover from virtio core bugs > > when we can't

On Mon, Apr 20, 2015 at 09:10:02PM +0200, Paolo Bonzini wrote: > > > On 20/04/2015 19:36, Michael S. Tsirkin wrote: > > At the implementation level, there's one big issue you seem to have > > missed: DMA to invalid memory addresses causes a crash in memory core. > > I'm not sure whether it makes sense to recover from virtio core bugs > > when we can't

...causes >> address_space_map to return a "short read". >> >> Paolo > > I mean, first of all, a bunch of virtio_XXX_phys calls. > These eventually call qemu_get_ram_ptr, which internally calls > qemu_get_ram_block and ramblock_ptr. > Both abort on errors. address_space_translate and memory_access_size should ensure they don't. Paolo