From f57467e3b326c7736f8e481fd6b680f30e575c87 Mon Sep 17 00:00:00 2001 From: Sam Bobroff Date: Thu, 3 Aug 2017 16:28:27 +1000 Subject: [PATCH] spapr: Fix bug in h_signal_sys_reset() The unicast case in h_signal_sys_reset() seems to be broken: rather than selecting the target CPU, it looks like it will pick either the first CPU or fail to find one at all. Fix it by using the search function rather than open coding the search. This was found by inspection; the code appears to be unused because the Linux kernel only uses the broadcast target. Signed-off-by: Sam Bobroff Reviewed-by: Greg Kurz Signed-off-by: David Gibson --- hw/ppc/spapr_hcall.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 72ea5a8247b..07b3da8dc4c 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -1431,11 +1431,10 @@ static target_ulong h_signal_sys_reset(PowerPCCPU *cpu, } else { /* Unicast */ - CPU_FOREACH(cs) { - if (cpu->cpu_dt_id == target) { - run_on_cpu(cs, spapr_do_system_reset_on_cpu, RUN_ON_CPU_NULL); - return H_SUCCESS; - } + cs = CPU(ppc_get_vcpu_by_dt_id(target)); + if (cs) { + run_on_cpu(cs, spapr_do_system_reset_on_cpu, RUN_ON_CPU_NULL); + return H_SUCCESS; } return H_PARAMETER; } -- 2.39.5