xen/xen at 775b544ebe83a06d9120f119b38b00a56dcc2a86 - xen

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Andrew Cooper 775b544ebe x86/boot: Adjust MSR_ARCH_CAPS handling for the Host policy

We are about to move MSR_ARCH_CAPS into featureset, but the order of
operations (copy raw policy, then copy x86_capabilitiles[] in) will end up
clobbering the ARCH_CAPS value.

Some toolstacks use this information to handle TSX compatibility across the
CPUs and microcode versions where support was removed.

To avoid this transient breakage, read from raw_cpu_policy rather than
modifying it in place.  This logic will be removed entirely in due course.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
(cherry picked from commit 43912f8dbb)

2023-08-03 19:14:19 +01:00

arch

x86/boot: Adjust MSR_ARCH_CAPS handling for the Host policy

2023-08-03 19:14:19 +01:00

common

gnttab: correct locking on transitive grant copy error path

2022-10-11 15:42:48 +02:00

crypto

ditch redundant integer types

2017-03-06 17:49:45 +01:00

drivers

x86: Split cache_flush() out of cache_writeback()