On 12/22/2011 01:56 PM, Christian Borntraeger wrote: > Avi, Marcelo, > > currently userspace can access guest registers via several ioctls. Some > of these registers might be useful very often. Here the system call overhead > for ioctl can make an exit more expensive than necessary. > In a discussion with Alex Graf we concluded that it might be beneficial to > have a subset of registers available in kvm_run. (The ioctls will also be > available). > > This series provides a prototype implementation together with two example > users for s390. > > Interesting. Other archs emulate everything to do with registers in the kernel, so this is not a fast path. What workload does this benefit? -- 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
