Kevin O'Connor wrote:
On Sun, Nov 22, 2009 at 05:38:09PM +0200, Gleb Natapov wrote:
On Sun, Nov 22, 2009 at 04:31:24PM +0100, Sebastian Herbszt wrote:
>    // Write protect bios memory.
>    make_bios_readonly();
Hmmm. How is tpr patching works then? It relies on ability of a guest to
write into BIOS memory region. Need to retest if it actually works I
guess.

The last time I looked, the TPR patching backend forced the "vapic"
pages to be writable (effectively overriding the bios decision to make
it readonly).

Does the TPR thing have to live in the optionrom/bios space or can it be moved
somewhere else like just below 4GB (some other kvm stuff is already there) ?

- Sebastian



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