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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/powerpc/kvm/booke.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*

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 *

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 * Copyright IBM Corp. 2008

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 *

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 * Authors: Hollis Blanchard <[email protected]>

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 */

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#ifndef __KVM_BOOKE_H__

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#define __KVM_BOOKE_H__

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#include <linux/types.h>

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#include <linux/kvm_host.h>

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#include <asm/kvm_ppc.h>

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#include <asm/switch_to.h>

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#include "timing.h"

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/* interrupt priortity ordering */

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#define BOOKE_IRQPRIO_DATA_STORAGE 0

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#define BOOKE_IRQPRIO_INST_STORAGE 1

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#define BOOKE_IRQPRIO_ALIGNMENT 2

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#define BOOKE_IRQPRIO_PROGRAM 3

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#define BOOKE_IRQPRIO_FP_UNAVAIL 4

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#ifdef CONFIG_SPE_POSSIBLE

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#define BOOKE_IRQPRIO_SPE_UNAVAIL 5

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#define BOOKE_IRQPRIO_SPE_FP_DATA 6

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#define BOOKE_IRQPRIO_SPE_FP_ROUND 7

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#endif

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#ifdef CONFIG_PPC_E500MC

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#define BOOKE_IRQPRIO_ALTIVEC_UNAVAIL 5

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#define BOOKE_IRQPRIO_ALTIVEC_ASSIST 6

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#endif

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#define BOOKE_IRQPRIO_SYSCALL 8

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#define BOOKE_IRQPRIO_AP_UNAVAIL 9

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#define BOOKE_IRQPRIO_DTLB_MISS 10

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#define BOOKE_IRQPRIO_ITLB_MISS 11

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#define BOOKE_IRQPRIO_MACHINE_CHECK 12

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#define BOOKE_IRQPRIO_DEBUG 13

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#define BOOKE_IRQPRIO_CRITICAL 14

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#define BOOKE_IRQPRIO_WATCHDOG 15

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#define BOOKE_IRQPRIO_EXTERNAL 16

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#define BOOKE_IRQPRIO_FIT 17

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#define BOOKE_IRQPRIO_DECREMENTER 18

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#define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19

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/* Internal pseudo-irqprio for level triggered externals */

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#define BOOKE_IRQPRIO_EXTERNAL_LEVEL 20

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#define BOOKE_IRQPRIO_DBELL 21

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#define BOOKE_IRQPRIO_DBELL_CRIT 22

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#define BOOKE_IRQPRIO_MAX 23

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#define BOOKE_IRQMASK_EE ((1 << BOOKE_IRQPRIO_EXTERNAL_LEVEL) | \

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			  (1 << BOOKE_IRQPRIO_PERFORMANCE_MONITOR) | \

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			  (1 << BOOKE_IRQPRIO_DBELL) | \

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			  (1 << BOOKE_IRQPRIO_DECREMENTER) | \

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			  (1 << BOOKE_IRQPRIO_FIT) | \

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			  (1 << BOOKE_IRQPRIO_EXTERNAL))

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#define BOOKE_IRQMASK_CE ((1 << BOOKE_IRQPRIO_DBELL_CRIT) | \

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			  (1 << BOOKE_IRQPRIO_WATCHDOG) | \

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			  (1 << BOOKE_IRQPRIO_CRITICAL))

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extern unsigned long kvmppc_booke_handlers;

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extern unsigned long kvmppc_booke_handler_addr[];

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void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr);

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void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr);

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void kvmppc_set_epcr(struct kvm_vcpu *vcpu, u32 new_epcr);

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void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr);

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void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);

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void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);

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int kvmppc_booke_emulate_op(struct kvm_vcpu *vcpu,

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                            unsigned int inst, int *advance);

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int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);

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int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);

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/* low-level asm code to transfer guest state */

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void kvmppc_load_guest_spe(struct kvm_vcpu *vcpu);

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void kvmppc_save_guest_spe(struct kvm_vcpu *vcpu);

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/* high-level function, manages flags, host state */

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void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu);

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void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu);

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void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu);

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enum int_class {

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	INT_CLASS_NONCRIT,

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	INT_CLASS_CRIT,

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	INT_CLASS_MC,

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	INT_CLASS_DBG,

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};

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void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type);

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extern int kvmppc_core_emulate_op_e500(struct kvm_vcpu *vcpu,

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				       unsigned int inst, int *advance);

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extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,

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					  ulong spr_val);

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extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,

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					  ulong *spr_val);

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extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,

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					  ulong spr_val);

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extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,

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					  ulong *spr_val);

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static inline void kvmppc_clear_dbsr(void)

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{

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	mtspr(SPRN_DBSR, mfspr(SPRN_DBSR));

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}

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int kvmppc_handle_exit(struct kvm_vcpu *vcpu, unsigned int exit_nr);

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#endif /* __KVM_BOOKE_H__ */

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