diff options
Diffstat (limited to 'arch/arm/include/asm/kvm_emulate.h')
| -rw-r--r-- | arch/arm/include/asm/kvm_emulate.h | 107 |
1 files changed, 100 insertions, 7 deletions
diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h index fd611996bfb5..82b4babead2c 100644 --- a/arch/arm/include/asm/kvm_emulate.h +++ b/arch/arm/include/asm/kvm_emulate.h @@ -22,11 +22,12 @@ #include <linux/kvm_host.h> #include <asm/kvm_asm.h> #include <asm/kvm_mmio.h> +#include <asm/kvm_arm.h> -u32 *vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num); -u32 *vcpu_spsr(struct kvm_vcpu *vcpu); +unsigned long *vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num); +unsigned long *vcpu_spsr(struct kvm_vcpu *vcpu); -int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run); +bool kvm_condition_valid(struct kvm_vcpu *vcpu); void kvm_skip_instr(struct kvm_vcpu *vcpu, bool is_wide_instr); void kvm_inject_undefined(struct kvm_vcpu *vcpu); void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr); @@ -37,14 +38,14 @@ static inline bool vcpu_mode_is_32bit(struct kvm_vcpu *vcpu) return 1; } -static inline u32 *vcpu_pc(struct kvm_vcpu *vcpu) +static inline unsigned long *vcpu_pc(struct kvm_vcpu *vcpu) { - return (u32 *)&vcpu->arch.regs.usr_regs.ARM_pc; + return &vcpu->arch.regs.usr_regs.ARM_pc; } -static inline u32 *vcpu_cpsr(struct kvm_vcpu *vcpu) +static inline unsigned long *vcpu_cpsr(struct kvm_vcpu *vcpu) { - return (u32 *)&vcpu->arch.regs.usr_regs.ARM_cpsr; + return &vcpu->arch.regs.usr_regs.ARM_cpsr; } static inline void vcpu_set_thumb(struct kvm_vcpu *vcpu) @@ -69,4 +70,96 @@ static inline bool kvm_vcpu_reg_is_pc(struct kvm_vcpu *vcpu, int reg) return reg == 15; } +static inline u32 kvm_vcpu_get_hsr(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.fault.hsr; +} + +static inline unsigned long kvm_vcpu_get_hfar(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.fault.hxfar; +} + +static inline phys_addr_t kvm_vcpu_get_fault_ipa(struct kvm_vcpu *vcpu) +{ + return ((phys_addr_t)vcpu->arch.fault.hpfar & HPFAR_MASK) << 8; +} + +static inline unsigned long kvm_vcpu_get_hyp_pc(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.fault.hyp_pc; +} + +static inline bool kvm_vcpu_dabt_isvalid(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & HSR_ISV; +} + +static inline bool kvm_vcpu_dabt_iswrite(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & HSR_WNR; +} + +static inline bool kvm_vcpu_dabt_issext(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & HSR_SSE; +} + +static inline int kvm_vcpu_dabt_get_rd(struct kvm_vcpu *vcpu) +{ + return (kvm_vcpu_get_hsr(vcpu) & HSR_SRT_MASK) >> HSR_SRT_SHIFT; +} + +static inline bool kvm_vcpu_dabt_isextabt(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & HSR_DABT_EA; +} + +static inline bool kvm_vcpu_dabt_iss1tw(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & HSR_DABT_S1PTW; +} + +/* Get Access Size from a data abort */ +static inline int kvm_vcpu_dabt_get_as(struct kvm_vcpu *vcpu) +{ + switch ((kvm_vcpu_get_hsr(vcpu) >> 22) & 0x3) { + case 0: + return 1; + case 1: + return 2; + case 2: + return 4; + default: + kvm_err("Hardware is weird: SAS 0b11 is reserved\n"); + return -EFAULT; + } +} + +/* This one is not specific to Data Abort */ +static inline bool kvm_vcpu_trap_il_is32bit(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & HSR_IL; +} + +static inline u8 kvm_vcpu_trap_get_class(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) >> HSR_EC_SHIFT; +} + +static inline bool kvm_vcpu_trap_is_iabt(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_trap_get_class(vcpu) == HSR_EC_IABT; +} + +static inline u8 kvm_vcpu_trap_get_fault(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & HSR_FSC_TYPE; +} + +static inline u32 kvm_vcpu_hvc_get_imm(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_get_hsr(vcpu) & HSR_HVC_IMM_MASK; +} + #endif /* __ARM_KVM_EMULATE_H__ */ |