Re: [Xen-devel] [PATCH] x86/nested-hap: Fix handling of L0_ERROR

[Jürgen Groß <jgross@xxxxxxxx>]

On 18.11.19 19:15, Andrew Cooper wrote:
> When nestedhvm_hap_nested_page_fault() returns L0_ERROR,
> hvm_hap_nested_page_fault() operates on the adjusted gpa.  However, it
> operates with the original npfec, which is no longer be correct.
>
> In particular, it is possible to get a nested fault where the translation is
> not present in L12 (and therefore L02), while it is present in L01.
>
> When handling an L0_ERROR, adjust npfec as well as gpa.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Release-acked-by: Juergen Gross <jgross@xxxxxxxx>


Juergen

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