Linux kernel bug fix: KVM: PPC: Book3S HV: use smp_mb() when setting/clearing host_ipi flag
Subsystem: arch/powerpc (arch/powerpc/sysdev/xics/icp-native.c)
Bug type: crash, severity: high
Files changed: arch/powerpc/include/asm/kvm_ppc.h;arch/powerpc/kernel/dbell.c;arch/powerpc/kvm/book3s_hv_rm_xics.c;arch/powerpc/platforms/powernv/smp.c;arch/powerpc/sysdev/xics/icp-native.c;arch/powerpc/sysdev/xics/icp-opal.c
Introduced by Paul Mackerras on 2015-03-20 14:51:53 +1100; fixed by Michael Roth on 2019-09-24 12:46:26 +1000 (lifetime: 1648 days)