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SubjectRe: [PATCH 0/7] KVM: Kernel-based Virtual Machine
Ar Sul, 2006-10-22 am 10:37 +0200, ysgrifennodd Avi Kivity:
> I like this. Since we plan to support multiple vcpus per vm, the fs
> structure might look like:

Three times the syscall overhead is bad for an emulation very bad for an
emulation of a CPU whose virtualisation is half baked.

> It's certainly a lot more code though, and requires new syscalls. Since
> this is a little esoteric does it warrant new syscalls?

I think not - ioctl exists to avoid adding a billion esoteric one user
syscalls. The idea of a VFS sysfs type view of the running vm is great
for tools however so I wouldn't throw it out entirely or see it as ioctl
versus fs.

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