SNP guest which makes sure all cache lines belonging to a 4K page are
evicted after latter has been converted to a guest-private page.
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Merge tag 'snp_cache_coherency' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
- Add a mitigation for a cache coherency vulnerability when running an
SNP guest which makes sure all cache lines belonging to a 4K page are
evicted after latter has been converted to a guest-private page
[ SNP: Secure Nested Paging - not to be confused with Single Nucleotide
Polymorphism, which is the more common use of that TLA. I am on a
mission to write out the more obscure TLAs in order to keep track of
them.
Because while math tells us that there are only about 17k different
combinations of three-letter acronyms using English letters (26^3), I
am convinced that somehow Intel, AMD and ARM have together figured out
new mathematics, and have at least a million different TLAs that they
use. - Linus ]
* tag 'snp_cache_coherency' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Evict cache lines during SNP memory validation
20e0d85764