Il 17/03/2014 18:38, H. Peter Anvin ha scritto:
I'm not sure what you mean with "valid real mode selectors"; the normal case in big real mode is that either CS = SS = 0 or CS = SS = <some program base address>.
I mean "valid according to the VMX spec" for running in vm86 mode: base = selector << 4, limit = 0xffff, access rights = 0xf3.
If a segment does not follow the rules, but CS does, we could run the guest normally and trap memory accesses to KVM.
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