diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_rmhandlers.S')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_rmhandlers.S | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_64_rmhandlers.S b/arch/powerpc/kvm/book3s_64_rmhandlers.S index 9ad1c2645d6..e7091c9459a 100644 --- a/arch/powerpc/kvm/book3s_64_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_64_rmhandlers.S @@ -140,6 +140,24 @@ kvmppc_handler_lowmem_trampoline: blr kvmppc_handler_lowmem_trampoline_end: +/* + * Call a function in real mode + * + * Input Registers: + * + * R3 = function + * R4 = MSR + * R5 = CTR + * + */ +_GLOBAL(kvmppc_rmcall) + mtmsr r4 /* Disable relocation, so mtsrr + doesn't get interrupted */ + mtctr r5 + mtsrr0 r3 + mtsrr1 r4 + RFI + .global kvmppc_trampoline_lowmem kvmppc_trampoline_lowmem: .long kvmppc_handler_lowmem_trampoline - _stext |