forked from Minki/linux
68ab07b985
Currently PR KVM doesn't support transaction memory in guest privileged state. This patch adds a check at setting guest msr, so that we can never return to guest with PR=0 and TS=0b10. A tabort will be emulated to indicate this and fail transaction immediately. [paulus@ozlabs.org - don't change the TM_CAUSE_MISC definition, instead use TM_CAUSE_KVM_FAC_UNAV.] Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
/*
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* Copyright IBM Corporation, 2013
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* Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License or (at your optional) any later version of the license.
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*
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*/
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#ifndef __POWERPC_KVM_BOOK3S_H__
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#define __POWERPC_KVM_BOOK3S_H__
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extern void kvmppc_core_flush_memslot_hv(struct kvm *kvm,
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struct kvm_memory_slot *memslot);
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extern int kvm_unmap_hva_range_hv(struct kvm *kvm, unsigned long start,
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unsigned long end);
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extern int kvm_age_hva_hv(struct kvm *kvm, unsigned long start,
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unsigned long end);
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extern int kvm_test_age_hva_hv(struct kvm *kvm, unsigned long hva);
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extern void kvm_set_spte_hva_hv(struct kvm *kvm, unsigned long hva, pte_t pte);
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extern void kvmppc_mmu_destroy_pr(struct kvm_vcpu *vcpu);
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extern int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int inst, int *advance);
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extern int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu,
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int sprn, ulong spr_val);
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extern int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu,
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int sprn, ulong *spr_val);
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extern int kvmppc_book3s_init_pr(void);
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extern void kvmppc_book3s_exit_pr(void);
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#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
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extern void kvmppc_emulate_tabort(struct kvm_vcpu *vcpu, int ra_val);
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#else
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static inline void kvmppc_emulate_tabort(struct kvm_vcpu *vcpu, int ra_val) {}
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#endif
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#endif
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