diff options
Diffstat (limited to 'include/hw/ppc/spapr_irq.h')
| -rw-r--r-- | include/hw/ppc/spapr_irq.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h index c22a72c9e2..4fd2d5853d 100644 --- a/include/hw/ppc/spapr_irq.h +++ b/include/hw/ppc/spapr_irq.h @@ -14,9 +14,21 @@ #include "qom/object.h" /* - * IRQ range offsets per device type + * The XIVE IRQ backend uses the same layout as the XICS backend but + * covers the full range of the IRQ number space. The IRQ numbers for + * the CPU IPIs are allocated at the bottom of this space, below 4K, + * to preserve compatibility with XICS which does not use that range. + */ + +/* + * CPU IPI range (XIVE only) */ #define SPAPR_IRQ_IPI 0x0 +#define SPAPR_IRQ_NR_IPIS 0x1000 + +/* + * IRQ range offsets per device type + */ #define SPAPR_XIRQ_BASE XICS_IRQ_BASE /* 0x1000 */ #define SPAPR_IRQ_EPOW (SPAPR_XIRQ_BASE + 0x0000) |