]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 566f8ef) | patch
x86/fsgsbase: Fix Xen PV support
authorAndy Lutomirski <luto@kernel.org>
Fri, 26 Jun 2020 17:24:30 +0000 (10:24 -0700)
committerThomas Gleixner <tglx@linutronix.de>
Wed, 1 Jul 2020 13:27:20 +0000 (15:27 +0200)
commita67cc9dd11b3071cc674763d9ff7e98359b990a7
treebc6aadea2b2a234361696aff4a6a9d2ac1564d36tree | snapshot
parent566f8efcd006926ea867df5b1c4caf95885c4cd9commit | diff
x86/fsgsbase: Fix Xen PV support

On Xen PV, SWAPGS doesn't work.  Teach __rdfsbase_inactive() and
__wrgsbase_inactive() to use rdmsrl()/wrmsrl() on Xen PV.  The Xen
pvop code will understand this and issue the correct hypercalls.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/f07c08f178fe9711915862b656722a207cd52c28.1593192140.git.luto@kernel.org
arch/x86/kernel/process_64.c diff | blob | history
Linux Kernel Source Tree.