Re: [v2][PATCH] kvm: x86: mmio: fix setting the present bit of mmio spte

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On 17/11/2014 12:31, Tiejun Chen wrote:
> In non-ept 64-bit of PAE case maxphyaddr may be 52bit as well,

There is no such thing as 64-bit PAE.

On 32-bit PAE hosts, PTEs have bit 62 reserved, as in your patch:

> +	/* Magic bits are always reserved for 32bit host. */
> +	mask |= 0x3ull << 62;

so there is no need to disable the MMIO page fault.

Paolo
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