We can provide this emulation to simplify more extension later.
Signed-off-by: Tiejun Chen <tiejun.chen@xxxxxxxxxxxxx>
---
arch/powerpc/include/asm/disassemble.h | 4 ++++
arch/powerpc/kvm/e500_emulate.c | 17 +++++++++++++++++
2 files changed, 21 insertions(+)
diff --git a/arch/powerpc/include/asm/disassemble.h b/arch/powerpc/include/asm/disassemble.h
index 9b198d1..856f8de 100644
--- a/arch/powerpc/include/asm/disassemble.h
+++ b/arch/powerpc/include/asm/disassemble.h
@@ -77,4 +77,8 @@ static inline unsigned int get_d(u32 inst)
return inst & 0xffff;
}
+static inline unsigned int get_oc(u32 inst)
+{
+ return (inst >> 11) & 0x7fff;
+}
#endif /* __ASM_PPC_DISASSEMBLE_H__ */
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index e78f353..36492cf 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -26,6 +26,7 @@
#define XOP_TLBRE 946
#define XOP_TLBWE 978
#define XOP_TLBILX 18
+#define XOP_EHPRIV 270
#ifdef CONFIG_KVM_E500MC
static int dbell2prio(ulong param)
@@ -80,6 +81,18 @@ static int kvmppc_e500_emul_msgsnd(struct kvm_vcpu *vcpu, int rb)
return EMULATE_DONE;
}
+
+static int kvmppc_e500_emul_ehpriv(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int inst)
+{
+ int emulated = EMULATE_DONE;
+
+ switch (get_oc(inst)) {
+ default:
+ emulated = EMULATE_FAIL;
+ }
+ return emulated;
+}
#endif
int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
@@ -130,6 +143,10 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
emulated = kvmppc_e500_emul_tlbivax(vcpu, ea);
break;
+ case XOP_EHPRIV:
+ emulated = kvmppc_e500_emul_ehpriv(run, vcpu, inst);
+ break;
+
default:
emulated = EMULATE_FAIL;
}
--
1.7.9.5
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