Lines Matching refs:vcpu
36 static void save_guest_debug_regs(struct kvm_vcpu *vcpu) in save_guest_debug_regs() argument
38 u64 val = vcpu_read_sys_reg(vcpu, MDSCR_EL1); in save_guest_debug_regs()
40 vcpu->arch.guest_debug_preserved.mdscr_el1 = val; in save_guest_debug_regs()
43 vcpu->arch.guest_debug_preserved.mdscr_el1); in save_guest_debug_regs()
46 static void restore_guest_debug_regs(struct kvm_vcpu *vcpu) in restore_guest_debug_regs() argument
48 u64 val = vcpu->arch.guest_debug_preserved.mdscr_el1; in restore_guest_debug_regs()
50 vcpu_write_sys_reg(vcpu, val, MDSCR_EL1); in restore_guest_debug_regs()
53 vcpu_read_sys_reg(vcpu, MDSCR_EL1)); in restore_guest_debug_regs()
84 static void kvm_arm_setup_mdcr_el2(struct kvm_vcpu *vcpu) in kvm_arm_setup_mdcr_el2() argument
90 vcpu->arch.mdcr_el2 = __this_cpu_read(mdcr_el2) & MDCR_EL2_HPMN_MASK; in kvm_arm_setup_mdcr_el2()
91 vcpu->arch.mdcr_el2 |= (MDCR_EL2_TPM | in kvm_arm_setup_mdcr_el2()
99 if (vcpu->guest_debug) in kvm_arm_setup_mdcr_el2()
101 vcpu->arch.mdcr_el2 |= MDCR_EL2_TDE; in kvm_arm_setup_mdcr_el2()
109 if ((vcpu->guest_debug & KVM_GUESTDBG_USE_HW) || in kvm_arm_setup_mdcr_el2()
110 !(vcpu->arch.flags & KVM_ARM64_DEBUG_DIRTY)) in kvm_arm_setup_mdcr_el2()
111 vcpu->arch.mdcr_el2 |= MDCR_EL2_TDA; in kvm_arm_setup_mdcr_el2()
113 trace_kvm_arm_set_dreg32("MDCR_EL2", vcpu->arch.mdcr_el2); in kvm_arm_setup_mdcr_el2()
123 void kvm_arm_vcpu_init_debug(struct kvm_vcpu *vcpu) in kvm_arm_vcpu_init_debug() argument
126 kvm_arm_setup_mdcr_el2(vcpu); in kvm_arm_vcpu_init_debug()
134 void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) in kvm_arm_reset_debug_ptr() argument
136 vcpu->arch.debug_ptr = &vcpu->arch.vcpu_debug_state; in kvm_arm_reset_debug_ptr()
155 void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) in kvm_arm_setup_debug() argument
157 unsigned long mdscr, orig_mdcr_el2 = vcpu->arch.mdcr_el2; in kvm_arm_setup_debug()
159 trace_kvm_arm_setup_debug(vcpu, vcpu->guest_debug); in kvm_arm_setup_debug()
161 kvm_arm_setup_mdcr_el2(vcpu); in kvm_arm_setup_debug()
164 if (vcpu->guest_debug) { in kvm_arm_setup_debug()
166 save_guest_debug_regs(vcpu); in kvm_arm_setup_debug()
188 if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) { in kvm_arm_setup_debug()
189 *vcpu_cpsr(vcpu) |= DBG_SPSR_SS; in kvm_arm_setup_debug()
190 mdscr = vcpu_read_sys_reg(vcpu, MDSCR_EL1); in kvm_arm_setup_debug()
192 vcpu_write_sys_reg(vcpu, mdscr, MDSCR_EL1); in kvm_arm_setup_debug()
194 mdscr = vcpu_read_sys_reg(vcpu, MDSCR_EL1); in kvm_arm_setup_debug()
196 vcpu_write_sys_reg(vcpu, mdscr, MDSCR_EL1); in kvm_arm_setup_debug()
199 trace_kvm_arm_set_dreg32("SPSR_EL2", *vcpu_cpsr(vcpu)); in kvm_arm_setup_debug()
210 if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW) { in kvm_arm_setup_debug()
212 mdscr = vcpu_read_sys_reg(vcpu, MDSCR_EL1); in kvm_arm_setup_debug()
214 vcpu_write_sys_reg(vcpu, mdscr, MDSCR_EL1); in kvm_arm_setup_debug()
216 vcpu->arch.debug_ptr = &vcpu->arch.external_debug_state; in kvm_arm_setup_debug()
217 vcpu->arch.flags |= KVM_ARM64_DEBUG_DIRTY; in kvm_arm_setup_debug()
220 &vcpu->arch.debug_ptr->dbg_bcr[0], in kvm_arm_setup_debug()
221 &vcpu->arch.debug_ptr->dbg_bvr[0]); in kvm_arm_setup_debug()
224 &vcpu->arch.debug_ptr->dbg_wcr[0], in kvm_arm_setup_debug()
225 &vcpu->arch.debug_ptr->dbg_wvr[0]); in kvm_arm_setup_debug()
229 BUG_ON(!vcpu->guest_debug && in kvm_arm_setup_debug()
230 vcpu->arch.debug_ptr != &vcpu->arch.vcpu_debug_state); in kvm_arm_setup_debug()
233 if (vcpu_read_sys_reg(vcpu, MDSCR_EL1) & (DBG_MDSCR_KDE | DBG_MDSCR_MDE)) in kvm_arm_setup_debug()
234 vcpu->arch.flags |= KVM_ARM64_DEBUG_DIRTY; in kvm_arm_setup_debug()
237 if (has_vhe() && orig_mdcr_el2 != vcpu->arch.mdcr_el2) in kvm_arm_setup_debug()
238 write_sysreg(vcpu->arch.mdcr_el2, mdcr_el2); in kvm_arm_setup_debug()
240 trace_kvm_arm_set_dreg32("MDSCR_EL1", vcpu_read_sys_reg(vcpu, MDSCR_EL1)); in kvm_arm_setup_debug()
243 void kvm_arm_clear_debug(struct kvm_vcpu *vcpu) in kvm_arm_clear_debug() argument
245 trace_kvm_arm_clear_debug(vcpu->guest_debug); in kvm_arm_clear_debug()
247 if (vcpu->guest_debug) { in kvm_arm_clear_debug()
248 restore_guest_debug_regs(vcpu); in kvm_arm_clear_debug()
254 if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW) { in kvm_arm_clear_debug()
255 kvm_arm_reset_debug_ptr(vcpu); in kvm_arm_clear_debug()
258 &vcpu->arch.debug_ptr->dbg_bcr[0], in kvm_arm_clear_debug()
259 &vcpu->arch.debug_ptr->dbg_bvr[0]); in kvm_arm_clear_debug()
262 &vcpu->arch.debug_ptr->dbg_wcr[0], in kvm_arm_clear_debug()
263 &vcpu->arch.debug_ptr->dbg_wvr[0]); in kvm_arm_clear_debug()
268 void kvm_arch_vcpu_load_debug_state_flags(struct kvm_vcpu *vcpu) in kvm_arch_vcpu_load_debug_state_flags() argument
283 vcpu->arch.flags |= KVM_ARM64_DEBUG_STATE_SAVE_SPE; in kvm_arch_vcpu_load_debug_state_flags()
288 vcpu->arch.flags |= KVM_ARM64_DEBUG_STATE_SAVE_TRBE; in kvm_arch_vcpu_load_debug_state_flags()
291 void kvm_arch_vcpu_put_debug_state_flags(struct kvm_vcpu *vcpu) in kvm_arch_vcpu_put_debug_state_flags() argument
293 vcpu->arch.flags &= ~(KVM_ARM64_DEBUG_STATE_SAVE_SPE | in kvm_arch_vcpu_put_debug_state_flags()