Hello, On Wed, Sep 16, 2020 at 10:52:25PM +0530, Ganesh Goudar wrote: > This patch series fixes mce handling for pseries, provides debugfs > interface for mce injection and adds selftest to test mce handling > on pseries/powernv machines running in hash mmu mode. > debugfs interface and sleftest are added only for slb multihit > injection, We can add other tests in future if possible. > > Ganesh Goudar (3): > powerpc/mce: remove nmi_enter/exit from real mode handler > powerpc/mce: Add debugfs interface to inject MCE > selftest/powerpc: Add slb multihit selftest
Is the below logic sound? It does not agree with what is added here: void machine_check_exception(struct pt_regs *regs) { int recover = 0; /* * BOOK3S_64 does not call this handler as a non-maskable interrupt * (it uses its own early real-mode handler to handle the MCE proper * and then raises irq_work to call this handler when interrupts are * enabled). * * This is silly. The BOOK3S_64 should just call a different function * rather than expecting semantics to magically change. Something * like 'non_nmi_machine_check_exception()', perhaps? */ const bool nmi = !IS_ENABLED(CONFIG_PPC_BOOK3S_64); if (nmi) nmi_enter(); Thanks Michal