mce.c (81b61fa7a065e639d097b09c303e3212e4264fac) mce.c (ba41e1e1ccb9771ce41a3b8e2121f95486e76ac9)
1/*
2 * Machine check exception handling.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *

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77}
78
79/*
80 * Decode and save high level MCE information into per cpu buffer which
81 * is an array of machine_check_event structure.
82 */
83void save_mce_event(struct pt_regs *regs, long handled,
84 struct mce_error_info *mce_err,
1/*
2 * Machine check exception handling.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *

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77}
78
79/*
80 * Decode and save high level MCE information into per cpu buffer which
81 * is an array of machine_check_event structure.
82 */
83void save_mce_event(struct pt_regs *regs, long handled,
84 struct mce_error_info *mce_err,
85 uint64_t nip, uint64_t addr)
85 uint64_t nip, uint64_t addr, uint64_t phys_addr)
86{
87 int index = __this_cpu_inc_return(mce_nest_count) - 1;
88 struct machine_check_event *mce = this_cpu_ptr(&mce_event[index]);
89
90 /*
91 * Return if we don't have enough space to log mce event.
92 * mce_nest_count may go beyond MAX_MC_EVT but that's ok,
93 * the check below will stop buffer overrun.

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135 mce->u.ra_error.effective_address_provided = true;
136 mce->u.ra_error.effective_address = addr;
137 } else if (mce->error_type == MCE_ERROR_TYPE_LINK) {
138 mce->u.link_error.effective_address_provided = true;
139 mce->u.link_error.effective_address = addr;
140 } else if (mce->error_type == MCE_ERROR_TYPE_UE) {
141 mce->u.ue_error.effective_address_provided = true;
142 mce->u.ue_error.effective_address = addr;
86{
87 int index = __this_cpu_inc_return(mce_nest_count) - 1;
88 struct machine_check_event *mce = this_cpu_ptr(&mce_event[index]);
89
90 /*
91 * Return if we don't have enough space to log mce event.
92 * mce_nest_count may go beyond MAX_MC_EVT but that's ok,
93 * the check below will stop buffer overrun.

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135 mce->u.ra_error.effective_address_provided = true;
136 mce->u.ra_error.effective_address = addr;
137 } else if (mce->error_type == MCE_ERROR_TYPE_LINK) {
138 mce->u.link_error.effective_address_provided = true;
139 mce->u.link_error.effective_address = addr;
140 } else if (mce->error_type == MCE_ERROR_TYPE_UE) {
141 mce->u.ue_error.effective_address_provided = true;
142 mce->u.ue_error.effective_address = addr;
143 if (phys_addr != ULONG_MAX) {
144 mce->u.ue_error.physical_address_provided = true;
145 mce->u.ue_error.physical_address = phys_addr;
146 }
143 }
144 return;
145}
146
147/*
148 * get_mce_event:
149 * mce Pointer to machine_check_event structure to be filled.
150 * release Flag to indicate whether to free the event slot or not.

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148 return;
149}
150
151/*
152 * get_mce_event:
153 * mce Pointer to machine_check_event structure to be filled.
154 * release Flag to indicate whether to free the event slot or not.

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