1 // SPDX-License-Identifier: GPL-2.0-only
18  * hyp_prepare_backtrace - Prepare non-protected nVHE backtrace.
21  * @pc : program counter at which to start the unwinding.
23  * Save the information needed by the host to unwind the non-protected
26 static void hyp_prepare_backtrace(unsigned long fp, unsigned long pc)  in hyp_prepare_backtrace()  argument
31 	stacktrace_info->stack_base = (unsigned long)(params->stack_hyp_va - PAGE_SIZE);  in hyp_prepare_backtrace()
32 	stacktrace_info->overflow_stack_base = (unsigned long)this_cpu_ptr(overflow_stack);  in hyp_prepare_backtrace()
33 	stacktrace_info->fp = fp;  in hyp_prepare_backtrace()
34 	stacktrace_info->pc = pc;  in hyp_prepare_backtrace()
56 	unsigned long high = params->stack_hyp_va;  in stackinfo_get_hyp()
57 	unsigned long low = high - PAGE_SIZE;  in stackinfo_get_hyp()
77 		if (!consume_entry(cookie, state->pc))  in unwind()
86  * pkvm_save_backtrace_entry - Saves a protected nVHE HYP stacktrace entry
103 	if (*idx > ARRAY_SIZE(pkvm_stacktrace) - 2)  in pkvm_save_backtrace_entry()
113  * pkvm_save_backtrace - Saves the protected nVHE HYP stacktrace
116  * @pc : program counter at which to start the unwinding.
121 static void pkvm_save_backtrace(unsigned long fp, unsigned long pc)  in pkvm_save_backtrace()  argument
133 	kvm_nvhe_unwind_init(&state, fp, pc);  in pkvm_save_backtrace()
138 static void pkvm_save_backtrace(unsigned long fp, unsigned long pc)  in pkvm_save_backtrace()  argument
144  * kvm_nvhe_prepare_backtrace - prepare to dump the nVHE backtrace
147  * @pc : program counter at which to start the unwinding.
152 void kvm_nvhe_prepare_backtrace(unsigned long fp, unsigned long pc)  in kvm_nvhe_prepare_backtrace()  argument
155 		pkvm_save_backtrace(fp, pc);  in kvm_nvhe_prepare_backtrace()
157 		hyp_prepare_backtrace(fp, pc);  in kvm_nvhe_prepare_backtrace()