37 lines
942 B
ArmAsm
37 lines
942 B
ArmAsm
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/* SPDX-License-Identifier: GPL-2.0-only */
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#include <asm/asm-offsets.h>
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#include <asm/cache.h>
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#include <asm/kvm_asm.h>
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#include <asm/kvm_book3s_asm.h>
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#include <asm/ppc_asm.h>
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#include <asm/reg.h>
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/*
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* This is branched to from interrupt handlers in exception-64s.S which set
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* IKVM_REAL or IKVM_VIRT, if HSTATE_IN_GUEST was found to be non-zero.
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*/
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.global kvmppc_interrupt
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.balign IFETCH_ALIGN_BYTES
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kvmppc_interrupt:
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/*
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* Register contents:
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* R12 = (guest CR << 32) | interrupt vector
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* R13 = PACA
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* guest R12 saved in shadow VCPU SCRATCH0
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* guest R13 saved in SPRN_SCRATCH0
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*/
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#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
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std r9,HSTATE_SCRATCH2(r13)
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lbz r9,HSTATE_IN_GUEST(r13)
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cmpwi r9,KVM_GUEST_MODE_HOST_HV
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beq kvmppc_bad_host_intr
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#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
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cmpwi r9,KVM_GUEST_MODE_GUEST
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ld r9,HSTATE_SCRATCH2(r13)
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beq kvmppc_interrupt_pr
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#endif
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b kvmppc_interrupt_hv
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#else
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b kvmppc_interrupt_pr
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#endif
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