diff options
| author | Alexander Graf <agraf@suse.de> | 2010-02-19 11:00:37 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-04-25 12:35:06 +0300 |
| commit | 71db4089361b9424314c41fcf92f63ce26263fcc (patch) | |
| tree | 584de466d83aff7ddcc4e923b67e975edc31ee89 /arch/powerpc/kvm/book3s_64_emulate.c | |
| parent | e425a6de1a2b427747f5af17bd76630548944ff1 (diff) | |
KVM: PPC: Implement mtsr instruction emulation
The Book3S_32 specifications allows for two instructions to modify segment
registers: mtsrin and mtsr.
Most normal operating systems use mtsrin, because it allows to define which
segment it wants to change using a register. But since I was trying to run
an embedded guest, it turned out to be using mtsr with hardcoded values.
So let's also emulate mtsr. It's a valid instruction after all.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_emulate.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_emulate.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_64_emulate.c b/arch/powerpc/kvm/book3s_64_emulate.c index bb4a7c1f8f05..e4e7ec318eb0 100644 --- a/arch/powerpc/kvm/book3s_64_emulate.c +++ b/arch/powerpc/kvm/book3s_64_emulate.c @@ -28,6 +28,7 @@ #define OP_31_XOP_MFMSR 83 #define OP_31_XOP_MTMSR 146 #define OP_31_XOP_MTMSRD 178 +#define OP_31_XOP_MTSR 210 #define OP_31_XOP_MTSRIN 242 #define OP_31_XOP_TLBIEL 274 #define OP_31_XOP_TLBIE 306 @@ -101,6 +102,11 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, } break; } + case OP_31_XOP_MTSR: + vcpu->arch.mmu.mtsrin(vcpu, + (inst >> 16) & 0xf, + kvmppc_get_gpr(vcpu, get_rs(inst))); + break; case OP_31_XOP_MTSRIN: vcpu->arch.mmu.mtsrin(vcpu, (kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf, |