tree 37d86f75b42641e09c81914d56322ed880d04274
parent 5742d04912ebf7f2d5d169e4696bd1192ad32806
author Christoffer Dall <christoffer.dall@linaro.org> 1507659008 +0200
committer Marc Zyngier <marc.zyngier@arm.com> 1521456792 +0000

KVM: arm64: Improve debug register save/restore flow

Instead of having multiple calls from the world switch path to the debug
logic, each figuring out if the dirty bit is set and if we should
save/restore the debug registers, let's just provide two hooks to the
debug save/restore functionality, one for switching to the guest
context, and one for switching to the host context, and we get the
benefit of only having to evaluate the dirty flag once on each path,
plus we give the compiler some more room to inline some of this
functionality.

Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>