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Re: [Xen-devel] Blocking upcall to dom0



Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx> wrote:
> Take a look at what happens with VT-x domains when they do a 'memory
> load' from emulated MMIO space. 
 
Just checking, are send_mmio_req() in vmx_platform.c and other places
where the ARCH_VMX_IO_WAIT bit is touched the right places to be
looking?  

Are these code paths blocking and returning to the same point within
Xen?  Most of the calls to do_block(), or the functions that invoke it,
seem to be the end of the path and not continuing on within Xen.

Thanks,
Andrew


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