diff options
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/hyp/include/hyp/switch.h | 17 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/nvhe/switch.c | 2 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/vhe/switch.c | 1 |
3 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h index 9cfe6bd1dbe4..f99d8af0b9af 100644 --- a/arch/arm64/kvm/hyp/include/hyp/switch.h +++ b/arch/arm64/kvm/hyp/include/hyp/switch.h @@ -30,6 +30,7 @@ #include <asm/fpsimd.h> #include <asm/debug-monitors.h> #include <asm/processor.h> +#include <asm/traps.h> struct kvm_exception_table_entry { int insn, fixup; @@ -265,6 +266,22 @@ static inline bool __populate_fault_info(struct kvm_vcpu *vcpu) return __get_fault_info(vcpu->arch.fault.esr_el2, &vcpu->arch.fault); } +static bool kvm_hyp_handle_mops(struct kvm_vcpu *vcpu, u64 *exit_code) +{ + *vcpu_pc(vcpu) = read_sysreg_el2(SYS_ELR); + arm64_mops_reset_regs(vcpu_gp_regs(vcpu), vcpu->arch.fault.esr_el2); + write_sysreg_el2(*vcpu_pc(vcpu), SYS_ELR); + + /* + * Finish potential single step before executing the prologue + * instruction. + */ + *vcpu_cpsr(vcpu) &= ~DBG_SPSR_SS; + write_sysreg_el2(*vcpu_cpsr(vcpu), SYS_SPSR); + + return true; +} + static inline void __hyp_sve_restore_guest(struct kvm_vcpu *vcpu) { sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2); diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c index c353a06ee7e6..c50f8459e4fc 100644 --- a/arch/arm64/kvm/hyp/nvhe/switch.c +++ b/arch/arm64/kvm/hyp/nvhe/switch.c @@ -192,6 +192,7 @@ static const exit_handler_fn hyp_exit_handlers[] = { [ESR_ELx_EC_DABT_LOW] = kvm_hyp_handle_dabt_low, [ESR_ELx_EC_WATCHPT_LOW] = kvm_hyp_handle_watchpt_low, [ESR_ELx_EC_PAC] = kvm_hyp_handle_ptrauth, + [ESR_ELx_EC_MOPS] = kvm_hyp_handle_mops, }; static const exit_handler_fn pvm_exit_handlers[] = { @@ -203,6 +204,7 @@ static const exit_handler_fn pvm_exit_handlers[] = { [ESR_ELx_EC_DABT_LOW] = kvm_hyp_handle_dabt_low, [ESR_ELx_EC_WATCHPT_LOW] = kvm_hyp_handle_watchpt_low, [ESR_ELx_EC_PAC] = kvm_hyp_handle_ptrauth, + [ESR_ELx_EC_MOPS] = kvm_hyp_handle_mops, }; static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu) diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c index 6537f58b1a8c..796202f2e08f 100644 --- a/arch/arm64/kvm/hyp/vhe/switch.c +++ b/arch/arm64/kvm/hyp/vhe/switch.c @@ -126,6 +126,7 @@ static const exit_handler_fn hyp_exit_handlers[] = { [ESR_ELx_EC_DABT_LOW] = kvm_hyp_handle_dabt_low, [ESR_ELx_EC_WATCHPT_LOW] = kvm_hyp_handle_watchpt_low, [ESR_ELx_EC_PAC] = kvm_hyp_handle_ptrauth, + [ESR_ELx_EC_MOPS] = kvm_hyp_handle_mops, }; static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu) |