Jim C. Brown wrote:
On Tue, Sep 13, 2005 at 11:27:39PM -0500, Anthony Liguori wrote:
I reckon kqemu has this same problem... Technically, even in ring 3, if
you run natively, you violate the Popek/Goldberg requirements because of
cpuid. It's just not possible to trap it but it shouldn't matter for
most software.
It is possible to trap it, in a sense. You just read ahead and replace the
cpuid instruction with something else.
You can't readahead beyond a basic block. Taking a trap for each basic
block and translating the block is what QEMU does.
Regards,
Anthony Liguori
Ugly, but doable.
_______________________________________________
Qemu-devel mailing list
Qemu-devel@nongnu.org
http://lists.nongnu.org/mailman/listinfo/qemu-devel
