mirror of https://gitee.com/openkylin/linux.git
powerpc/xmon: Check for HV mode when dumping XIVE info from OPAL
Currently, the xmon 'dx' command calls OPAL to dump the XIVE state in the OPAL logs and also outputs some of the fields of the internal XIVE structures in Linux. The OPAL calls can only be done on baremetal (PowerNV) and they crash a pseries machine. Fix by checking the hypervisor feature of the CPU. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190814154754.23682-2-clg@kaod.org
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@ -2534,13 +2534,16 @@ static void dump_pacas(void)
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static void dump_one_xive(int cpu)
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{
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unsigned int hwid = get_hard_smp_processor_id(cpu);
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bool hv = cpu_has_feature(CPU_FTR_HVMODE);
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opal_xive_dump(XIVE_DUMP_TM_HYP, hwid);
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opal_xive_dump(XIVE_DUMP_TM_POOL, hwid);
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opal_xive_dump(XIVE_DUMP_TM_OS, hwid);
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opal_xive_dump(XIVE_DUMP_TM_USER, hwid);
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opal_xive_dump(XIVE_DUMP_VP, hwid);
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opal_xive_dump(XIVE_DUMP_EMU_STATE, hwid);
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if (hv) {
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opal_xive_dump(XIVE_DUMP_TM_HYP, hwid);
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opal_xive_dump(XIVE_DUMP_TM_POOL, hwid);
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opal_xive_dump(XIVE_DUMP_TM_OS, hwid);
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opal_xive_dump(XIVE_DUMP_TM_USER, hwid);
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opal_xive_dump(XIVE_DUMP_VP, hwid);
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opal_xive_dump(XIVE_DUMP_EMU_STATE, hwid);
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}
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if (setjmp(bus_error_jmp) != 0) {
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catch_memory_errors = 0;
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