x86/kvm: On KVM re-enable (e.g. after suspend), update clocks

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This gets rid of the "did TSC go backwards" logic and just
updates all clocks.  It should work better (no more disabling of
fast timing) and more reliably (all of the clocks are actually
updated).

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/861716d768a1da6d1fd257b7972f8df13baf7f85.1449702533.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

This commit is contained in:

Andy Lutomirski 2015-12-10 19:20:18 -08:00 • committed by Ingo Molnar

parent 478dc89cf3

commit 677a73a9aa

1 changed files with 3 additions and 72 deletions

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arch/x86/kvm/x86.c

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