Am 03.01.2011 17:59, Avi Kivity wrote: > On 01/03/2011 06:52 PM, Jan Kiszka wrote: >> Am 03.01.2011 17:06, Avi Kivity wrote: >> > On 01/03/2011 10:33 AM, Jan Kiszka wrote: >> >> From: Jan Kiszka<jan.kis...@siemens.com> >> >> >> >> First of all, we only need this EPT identity and TSS reservation on >> >> Intel CPUs. >> > >> > kvm-amd will ignore it just fine. I'd like to keep arch differences >> > away from userspace. >> >> And I would prefer to avoid needlessly cluttering the physical guest >> address space where not needed. Long term, we could even give user space >> a hint (unless it can test it directly) that this workaround is no >> longer needed as the host Intel CPU supports true real mode. > > Having different physical address spaces based on the host cpu is bad, > even disregarding live migration. If there's a real need, we can do it > as an option. I don't see such a need though.
I see, migration is a killer argument. Jan
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