diff options
Diffstat (limited to 'arch/powerpc/kernel/kvm_emul.S')
| -rw-r--r-- | arch/powerpc/kernel/kvm_emul.S | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/kvm_emul.S b/arch/powerpc/kernel/kvm_emul.S index 3199f65ede2c..a6e97e7a55e0 100644 --- a/arch/powerpc/kernel/kvm_emul.S +++ b/arch/powerpc/kernel/kvm_emul.S @@ -245,3 +245,53 @@ kvm_emulate_wrteei_ee_offs: .global kvm_emulate_wrteei_len kvm_emulate_wrteei_len: .long (kvm_emulate_wrteei_end - kvm_emulate_wrteei) / 4 + + +.global kvm_emulate_mtsrin +kvm_emulate_mtsrin: + + SCRATCH_SAVE + + LL64(r31, KVM_MAGIC_PAGE + KVM_MAGIC_MSR, 0) + andi. r31, r31, MSR_DR | MSR_IR + beq kvm_emulate_mtsrin_reg1 + + SCRATCH_RESTORE + +kvm_emulate_mtsrin_orig_ins: + nop + b kvm_emulate_mtsrin_branch + +kvm_emulate_mtsrin_reg1: + /* rX >> 26 */ + rlwinm r30,r0,6,26,29 + +kvm_emulate_mtsrin_reg2: + stw r0, (KVM_MAGIC_PAGE + KVM_MAGIC_SR)(r30) + + SCRATCH_RESTORE + + /* Go back to caller */ +kvm_emulate_mtsrin_branch: + b . +kvm_emulate_mtsrin_end: + +.global kvm_emulate_mtsrin_branch_offs +kvm_emulate_mtsrin_branch_offs: + .long (kvm_emulate_mtsrin_branch - kvm_emulate_mtsrin) / 4 + +.global kvm_emulate_mtsrin_reg1_offs +kvm_emulate_mtsrin_reg1_offs: + .long (kvm_emulate_mtsrin_reg1 - kvm_emulate_mtsrin) / 4 + +.global kvm_emulate_mtsrin_reg2_offs +kvm_emulate_mtsrin_reg2_offs: + .long (kvm_emulate_mtsrin_reg2 - kvm_emulate_mtsrin) / 4 + +.global kvm_emulate_mtsrin_orig_ins_offs +kvm_emulate_mtsrin_orig_ins_offs: + .long (kvm_emulate_mtsrin_orig_ins - kvm_emulate_mtsrin) / 4 + +.global kvm_emulate_mtsrin_len +kvm_emulate_mtsrin_len: + .long (kvm_emulate_mtsrin_end - kvm_emulate_mtsrin) / 4 |