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| /openbmc/linux/arch/arm64/kvm/ |
| H A D | psci.c | a189884b Tue Apr 18 21:18:52 CDT 2023 Reiji Watanabe <reijiw@google.com> KVM: arm64: Have kvm_psci_vcpu_on() use WRITE_ONCE() to update mp_state
All accessors of kvm_vcpu_arch::mp_state should be {READ,WRITE}_ONCE(),
since readers of the mp_state don't acquire the mp_state_lock.
Nonetheless, kvm_psci_vcpu_on() updates the mp_state without using
WRITE_ONCE(). So, fix the code to update the mp_state using WRITE_ONCE.
Signed-off-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230419021852.2981107-3-reijiw@google.com
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