From 9ac703ac5f9e830ab96d38dc77061bd4be76cf60 Mon Sep 17 00:00:00 2001 From: Aravinda Prasad Date: Fri, 31 Jan 2020 00:14:19 +0530 Subject: target/ppc: Handle NMI guest exit Memory error such as bit flips that cannot be corrected by hardware are passed on to the kernel for handling. If the memory address in error belongs to guest then the guest kernel is responsible for taking suitable action. Patch [1] enhances KVM to exit guest with exit reason set to KVM_EXIT_NMI in such cases. This patch handles KVM_EXIT_NMI exit. [1] https://www.spinics.net/lists/kvm-ppc/msg12637.html (e20bbd3d and related commits) Signed-off-by: Aravinda Prasad Signed-off-by: Ganesh Goudar Reviewed-by: David Gibson Reviewed-by: Greg Kurz Message-Id: <20200130184423.20519-4-ganeshgr@linux.ibm.com> [dwg: #ifdefs to fix compile for 32-bit target] Signed-off-by: David Gibson --- include/hw/ppc/spapr.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 7bc5fc3a9e..909d3976f9 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -191,6 +191,15 @@ struct SpaprMachineState { * occurs during the unplug process. */ QTAILQ_HEAD(, SpaprDimmState) pending_dimm_unplugs; + /* State related to "ibm,nmi-register" and "ibm,nmi-interlock" calls */ + target_ulong guest_machine_check_addr; + /* + * mc_status is set to -1 if mc is not in progress, else is set to the CPU + * handling the mc. + */ + int mc_status; + QemuCond mc_delivery_cond; + /*< public >*/ char *kvm_type; char *host_model; @@ -804,6 +813,7 @@ void spapr_clear_pending_events(SpaprMachineState *spapr); int spapr_max_server_number(SpaprMachineState *spapr); void spapr_store_hpte(PowerPCCPU *cpu, hwaddr ptex, uint64_t pte0, uint64_t pte1); +void spapr_mce_req_event(PowerPCCPU *cpu); /* DRC callbacks. */ void spapr_core_release(DeviceState *dev); -- cgit v1.2.3-55-g7522