diff options
Diffstat (limited to 'src/dev/arm/gic_pl390.cc')
| -rw-r--r-- | src/dev/arm/gic_pl390.cc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/dev/arm/gic_pl390.cc b/src/dev/arm/gic_pl390.cc index c114604ab..ce27e94fc 100644 --- a/src/dev/arm/gic_pl390.cc +++ b/src/dev/arm/gic_pl390.cc @@ -52,6 +52,7 @@ #include "mem/packet.hh" #include "mem/packet_access.hh" +const AddrRange Pl390::GICD_IGROUPR (0x080, 0x0ff); const AddrRange Pl390::GICD_ISENABLER (0x100, 0x17f); const AddrRange Pl390::GICD_ICENABLER (0x180, 0x1ff); const AddrRange Pl390::GICD_ISPENDR (0x200, 0x27f); @@ -153,6 +154,10 @@ Pl390::readDistributor(PacketPtr pkt) uint32_t Pl390::readDistributor(ContextID ctx, Addr daddr, size_t resp_sz) { + if (GICD_IGROUPR.contains(daddr)) { + return 0; // unimplemented; RAZ (read as zero) + } + if (GICD_ISENABLER.contains(daddr)) { uint32_t ix = (daddr - GICD_ISENABLER.start()) >> 2; assert(ix < 32); @@ -387,6 +392,10 @@ void Pl390::writeDistributor(ContextID ctx, Addr daddr, uint32_t data, size_t data_sz) { + if (GICD_IGROUPR.contains(daddr)) { + return; // unimplemented; WI (writes ignored) + } + if (GICD_ISENABLER.contains(daddr)) { uint32_t ix = (daddr - GICD_ISENABLER.start()) >> 2; assert(ix < 32); |