20e0d85764
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. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmiTjlwACgkQEsHwGGHe VUrNQBAAtVZqCIfX3MFyhrBu6k4laMDNjKMneX2JregOv42ha/pjuJ/S8mNQhG3J 0vLGcPmW1y8hNtm3+hhnt2xo7fNpwgReXkYrjmQPfIWrYHVgdyTz+Rwsacf7D8Yj p15XrFz+8w7SHI095ZcvJTc/rAxUbGkAXqYE6p7gj04iJtSe4FpdZZw9fW8IPooE hZypWG4aAJdsFn4qmIsIh/2QYiCuVS9yhJuUX43K7Ft2xl5jXUYulu5yyWyBZC6r OOe6Uc+nc5dDLa+U5ileqgXGf23LgE7LxbsVpKs5OetJmZhAjGTY+go6U/Zm03FU bsRQG8OumitgeUd+tjwtl/KNCu03DggQ8a1cqTt09leOkejQ9mB/ArZHuBWjIR7x hPX8mlOIhCWkOP6S8DnnI53baGz/OgGTvWP1Ehuv2WaM1ip7fDduhENK0TWY0Hx+ mTGG1HA5zILnYSGh+3hr5xC+YDNgvMR1uSWhG2zARrs98rgP3MC8P2kcrmSpLOFF BFJ8i2TSppr6mDdnRspgq3jn3MYKaPQxjG4OJQEawqkfzfsnw4+kxGYFK/9YaeB7 KqqtU/4GPh65y/LsELXPp/NlPaZ6LXjLoLj2IwDEHNBl2iBiRmH+FDSFL0Hsxb/c mMW0V2RA+OwzktARXMazXAqM7hR8SStnkW38SrT/YSrRnRFFGSg= =8kfV -----END PGP SIGNATURE----- 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 |
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