[MODERATED] Re: [PATCH 1/2] L1TF KVM v2 1

[Andi Kleen <ak@linux.intel.com>]

> +
> +/*
> + * The L1D cache is 32 KiB on Skylake, but to flush it we have to read in
> + * 64 KiB because the replacement algorithm is not exactly LRU.
> + */
> +#define L1D_CACHE_ORDER 4
> +static void *__read_mostly empty_zero_pages;

I thought we agreed to remove this? We should be only using the MSR based flush
methods, as microcode updates are needed in any case for other things.

-Andi