Re: [Xen-devel] [PATCH RFC for-4.13 00/10] xen/arm: XSA-201 and XSA-263 fixes

[Jürgen Groß <jgross@xxxxxxxx>]

On 26.09.19 20:37, Julien Grall wrote:
> Hi all,
>
> This patch series aims to fix two bugs in the entry path from the guest:
>      1) Make sure that SSBD workaround is enabled before executing any 
> hypervisor code
>      2) Avoid guest state corruption when an virtual SError is received
>
> The full series is candidate for Xen 4.13. Without it, the hypervisor would
> not be properly protected against SSB vulnerability and the guest state may
> get corrupted if an SError is received.
>
> This is in RFC state because the entry code is now quite different and
> arm32 changes are not yet implemented. I will modify arm32 once we agreed
> on the approach.
>
> Cheers,
>
> Cc: jgross@xxxxxxxx
I think the explanation of the motivation qualifies the series to be
marked as a blocker for 4.13.


Juergen

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