diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv_rmhandlers.S')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_rmhandlers.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index dccfa85d35df..12fb2afb23fc 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -1198,6 +1198,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) * -1 A guest wakeup IPI (which has now been cleared) * In either case, we return to guest to deliver any pending * guest interrupts. + * + * -2 A PCI passthrough external interrupt was handled + * (interrupt was delivered directly to guest) + * Return to guest to deliver any pending guest interrupts. */ cmpdi r3, 0 @@ -2352,6 +2356,8 @@ machine_check_realmode: * 0 if nothing needs to be done * 1 if something happened that needs to be handled by the host * -1 if there was a guest wakeup (IPI or msgsnd) + * -2 if we handled a PCI passthrough interrupt (returned by + * kvmppc_read_intr only) * * Also sets r12 to the interrupt vector for any interrupt that needs * to be handled now by the host (0x500 for external interrupt), or zero. |