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Re: [Xen-devel] [PATCH 7/9] x86/amd: Support context switching legacy SSBD interface

On Mon, Dec 03, 2018 at 04:18:20PM +0000, Andy Cooper wrote:
> It is critical that MSR_AMD64_LS_CFG is never modified outside of this
> function, to avoid trampling on sibling settings.
> For now, pass in NULL from the boot paths and just set Xen's default.  Later
> patches will plumb in guest choices.  This now supercedes the older code which
> wrote to MSR_AMD64_LS_CFG once during boot.
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Brian Woods <brian.woods@xxxxxxx>

Brian Woods

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