kvm/hyp/exception.c

1 // SPDX-License-Identifier: GPL-2.0-only
5  * Copyright (C) 2012,2013 - ARM Ltd
8  * Based on arch/arm/kvm/emulate.c
9  * Copyright (C) 2012 - Virtual Open Systems and Columbia University
63 		vcpu->arch.ctxt.spsr_abt = val;  in __vcpu_write_spsr_abt()
71 		vcpu->arch.ctxt.spsr_und = val;  in __vcpu_write_spsr_und()
77  * The EL passed to this function *must* be a non-secure, privileged mode with
85  * For the SPSR_ELx layout for AArch64, see ARM DDI 0487E.a page C5-429.
86  * For the SPSR_ELx layout for AArch32, see ARM DDI 0487E.a page C5-426.
134 	if (kvm_has_mte(kern_hyp_va(vcpu->kvm)))  in enter_exception64()
140 	// See ARM DDI 0487E.a, page D5-2579.  in enter_exception64()
143 	// SCTLR_ELx.SPAN is RES1 when ARMv8.1-PAN is not implemented  in enter_exception64()
144 	// See ARM DDI 0487E.a, page D5-2578.  in enter_exception64()
150 	// See ARM DDI 0487E.a, page D2-2452.  in enter_exception64()
153 	// See ARM DDI 0487E.a, page D1-2306.  in enter_exception64()
156 	// See ARM DDI 0487E.a, page D13-3258  in enter_exception64()
161 	// See ARM DDI 0487E.a, pages D1-2293 to D1-2294.  in enter_exception64()
183  * - ARM DDI 0406C.d, page B1-1148
184  * - ARM DDI 0487E.a, page G8-6264
187  * - ARM DDI 0487E.a, page C5-426
213 	// See ARM DDI 0487E.a, page G8-6244  in get_except32_cpsr()
218 	// SCTLR.SPAN is RES1 when ARMv8.1-PAN is not implemented  in get_except32_cpsr()
219 	// See ARM DDI 0487E.a, page G8-6246  in get_except32_cpsr()
227 	// See ARM DDI 0487E.a, page G1-5527  in get_except32_cpsr()
235 	// See ARM DDI 0487E.a, page G8-6245  in get_except32_cpsr()
236 	// See ARM DDI 0406C.d, page B4-1701  in get_except32_cpsr()
242 	// See ARM DDI 0487E.a, pages G1-5515 to G1-5516  in get_except32_cpsr()
243 	// See ARM DDI 0406C.d, page B1-1182  in get_except32_cpsr()
249 	// See ARM DDI 0487E.a, pages G1-5515 to G1-5516  in get_except32_cpsr()
250 	// See ARM DDI 0406C.d, page B1-1182  in get_except32_cpsr()
253 	// CPSR.F is set upon an exception to FIQ  in get_except32_cpsr()
255 	// See ARM DDI 0487E.a, pages G1-5515 to G1-5516  in get_except32_cpsr()
256 	// See ARM DDI 0406C.d, page B1-1182  in get_except32_cpsr()
262 	// See ARM DDI 0487E.a, page G8-5514  in get_except32_cpsr()
263 	// See ARM DDI 0406C.d, page B1-1181  in get_except32_cpsr()
273  * Table taken from ARMv8 ARM DDI0487B-B, table G1-10.
283 	[7] = { 4, 4 },		/* FIQ, unused */
301 		vcpu_gp_regs(vcpu)->compat_lr_abt = return_address;  in enter_exception32()
306 		vcpu_gp_regs(vcpu)->compat_lr_und = return_address;  in enter_exception32()