ARM: KVM: arch_timers: Add timer world switch
Do the necessary save/restore dance for the timers in the world
switch code. In the process, allow the guest to read the physical
counter, which is useful for its own clock_event_device.
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c
index d782638..4ea9a98 100644
--- a/arch/arm/kvm/coproc.c
+++ b/arch/arm/kvm/coproc.c
@@ -222,6 +222,10 @@
NULL, reset_unknown, c13_TID_URO },
{ CRn(13), CRm( 0), Op1( 0), Op2( 4), is32,
NULL, reset_unknown, c13_TID_PRIV },
+
+ /* CNTKCTL: swapped by interrupt.S. */
+ { CRn(14), CRm( 1), Op1( 0), Op2( 0), is32,
+ NULL, reset_val, c14_CNTKCTL, 0x00000000 },
};
/* Target specific emulation tables */