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authorAlexander Graf <agraf@suse.de>2014-06-20 14:43:36 +0200
committerAlexander Graf <agraf@suse.de>2014-07-28 16:35:53 +0200
commitc12fb43c2f6d6a57a4e21afe74ff56485d699ee7 (patch)
tree4e5b0697bebd43348fa15f116b1c746ef561a9cb /arch/powerpc/include/asm/kvm_book3s.h
parentc45c551403f0a7b152e56c53735b954faa36c54c (diff)
KVM: PPC: Handle magic page in kvmppc_ld/st
We use kvmppc_ld and kvmppc_st to emulate load/store instructions that may as well access the magic page. Special case it out so that we can properly access it. Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/include/asm/kvm_book3s.h')
-rw-r--r--arch/powerpc/include/asm/kvm_book3s.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 172fd6dd2821..61667913ec98 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -286,6 +286,13 @@ static inline bool is_kvmppc_resume_guest(int r)
return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
}
+static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
+static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
+{
+ /* Only PR KVM supports the magic page */
+ return !is_kvmppc_hv_enabled(vcpu->kvm);
+}
+
/* Magic register values loaded into r3 and r4 before the 'sc' assembly
* instruction for the OSI hypercalls */
#define OSI_SC_MAGIC_R3 0x113724FA