include/asm/kvm_host.h

29 /* MIPS KVM register ids */
102 #define KVM_HVA_ERR_BAD			(-1UL)
103 #define KVM_HVA_ERR_RO_BAD		(-2UL)
176 	/* Guest physical mm */
247 #define RESUME_FLAG_DR		(1<<0)	/* Reload guest nonvolatile state? */
260 	EMULATE_EXCEPT,		/* A guest exception has been generated */
265 #define VPN2_MASK		GENMASK(cpu_vmbits - 1, 13)
294 	/* Host registers preserved across guest mode execution */
300 	/* Host CP0 registers used when handling exits from guest */
353 	/* wired guest TLB entries */
358 	/* emulated guest MAAR registers */
363 	/* Last CPU the VCPU actually executed guest code on */
426 /* Guest register types, used in accessor build below */
432  * These operate on the saved guest C0 state in RAM.
439 	return cop0->reg[(_reg)][(sel)];				\
444 	cop0->reg[(_reg)][(sel)] = val;					\
452 	cop0->reg[(_reg)][(sel)] |= val;				\
457 	cop0->reg[(_reg)][(sel)] &= ~val;				\
464 	cop0->reg[(_reg)][(sel)] &= ~_mask;				\
465 	cop0->reg[(_reg)][(sel)] |= val & _mask;			\
473 	_kvm_atomic_set_c0_guest_reg(&cop0->reg[(_reg)][(sel)], val);	\
478 	_kvm_atomic_clear_c0_guest_reg(&cop0->reg[(_reg)][(sel)], val);	\
484 	_kvm_atomic_change_c0_guest_reg(&cop0->reg[(_reg)][(sel)], mask, \
490  * These operate on the VZ guest C0 context in hardware.
493 /* Generate VZ guest context simple accessors */
505 /* Generate VZ guest context bitwise modifiers */
524 /* Generate VZ guest context save/restore to/from saved context */
528 	write_gc0_##name(cop0->reg[(_reg)][(sel)]);			\
532 	cop0->reg[(_reg)][(sel)] = read_gc0_##name();			\
536  * __BUILD_KVM_$ops_WRAP(): kvm_$op_$name1() -> kvm_$op_$name2()
572  * __BUILD_KVM_$ops_SW(): kvm_$op_c0_guest_$reg() -> kvm_$op_sw_gc0_$reg()
574  * with the common guest C0 accessors (for use by common emulation code).
591  * These macros use the active guest state in VZ mode (hardware registers),
595  * __BUILD_KVM_$ops_HW(): kvm_$op_c0_guest_$reg() -> kvm_$op_vz_gc0_$reg()
596  * These generate accessors operating on the VZ guest context in hardware, and
597  * wrap them with the common guest C0 accessors (for use by common emulation
622  * Define accessors for CP0 registers that are accessible to the guest. These
626  *    fns_hw/sw    name     type    reg num         select
695 		vcpu->fpu_enabled;  in kvm_mips_guest_can_have_fpu()
701 		kvm_read_c0_guest_config1(&vcpu->cop0) & MIPS_CONF1_FP;  in kvm_mips_guest_has_fpu()
707 		vcpu->msa_enabled;  in kvm_mips_guest_can_have_msa()
713 		kvm_read_c0_guest_config3(&vcpu->cop0) & MIPS_CONF3_MSA;  in kvm_mips_guest_has_msa()
819  * kvm_is_ifetch_fault() - Find whether a TLBL exception is due to ifetch fault.
827 	unsigned long badvaddr = vcpu->host_cp0_badvaddr;  in kvm_is_ifetch_fault()
828 	unsigned long epc = msk_isa16_mode(vcpu->pc);  in kvm_is_ifetch_fault()
829 	u32 cause = vcpu->host_cp0_cause;  in kvm_is_ifetch_fault()
835 	 * Branches may be 32-bit or 16-bit instructions.  in kvm_is_ifetch_fault()
839 	if ((cause & CAUSEF_BD) && badvaddr - epc <= 4)  in kvm_is_ifetch_fault()