> After much debugging, it turns out that the
> "p2m_is_ram(p2mt)" test in hvm_hap_nested_page_fault() fails if I switch
> to the new altp2m view fast enough, and that in turn disables the
> logdirty processing gated on it

Actually as it turns out the exit doesn't happen at all anymore so
hvm_hap_nested_page_fault() doesn't get called (I've added a printk() in
hvm_hap_nested_page_fault() just before "/* Check access permissions
first, then handle faults */" and it doesn't appear).

Debugging continues.


Xen-devel mailing list

Reply via email to