Peter Zijlstra 662a022189 x86/entry: Fix AC assertion ... The WARN added in commit 3c73b81a91 ("x86/entry, selftests: Further improve user entry sanity checks") unconditionally triggers on a IVB machine because it does not support SMAP. For !SMAP hardware the CLAC/STAC instructions are patched out and thus if userspace sets AC, it is still have set after entry. Fixes: 3c73b81a91 ("x86/entry, selftests: Further improve user entry sanity checks") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200902133200.666781610@infradead.org		2020-09-04 15:09:29 +02:00
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asm	x86/entry: Fix AC assertion	2020-09-04 15:09:29 +02:00
uapi/asm	Support for FSGSBASE. Almost 5 years after the first RFC to support it,	2020-08-04 21:16:22 -07:00