On 05/24/2012 12:59 PM, Gleb Natapov wrote: > On Thu, May 24, 2012 at 05:24:34PM +0800, Xiao Guangrong wrote: >> In current code, if we map a readonly memory space from host to guest >> and the page is not currently mapped in the host, we will get a fault-pfn >> and async is not allowed, then the vm will crash >> >> Address Avi's idea, we introduce readonly memory region to map ROM/ROMD >> to the guest >> > As far as I can tell this implements only ROMD. i.e write access to read > only slot will generate IO exit. Which userspace can then ignore. The question is whether writes to ROM are frequent, and whether the performance in that case matters. -- 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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
