diff options
Diffstat (limited to 'src/arch/arm/kvm/gic.hh')
| -rw-r--r-- | src/arch/arm/kvm/gic.hh | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/src/arch/arm/kvm/gic.hh b/src/arch/arm/kvm/gic.hh index d6922b24b..fc09da6a0 100644 --- a/src/arch/arm/kvm/gic.hh +++ b/src/arch/arm/kvm/gic.hh @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015-2016 ARM Limited + * Copyright (c) 2015-2017 ARM Limited * All rights reserved * * The license below extends only to copyright in the software and shall @@ -35,6 +35,7 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Authors: Andreas Sandberg + * Curtis Dunham */ #ifndef __ARCH_ARM_KVM_GIC_HH__ @@ -44,6 +45,7 @@ #include "cpu/kvm/device.hh" #include "cpu/kvm/vm.hh" #include "dev/arm/base_gic.hh" +#include "dev/arm/gic_pl390.hh" #include "dev/platform.hh" /** @@ -205,4 +207,47 @@ class KvmGic : public BaseGic const AddrRangeList addrRanges; }; +struct MuxingKvmGicParams; + +class MuxingKvmGic : public Pl390 +{ + public: // SimObject / Serializable / Drainable + MuxingKvmGic(const MuxingKvmGicParams *p); + ~MuxingKvmGic(); + + void startup() override; + void drainResume() override; + + void serialize(CheckpointOut &cp) const override; + void unserialize(CheckpointIn &cp) override; + + public: // PioDevice + Tick read(PacketPtr pkt) override; + Tick write(PacketPtr pkt) override; + + public: // Pl390 + void sendInt(uint32_t num) override; + void clearInt(uint32_t num) override; + + void sendPPInt(uint32_t num, uint32_t cpu) override; + void clearPPInt(uint32_t num, uint32_t cpu) override; + + protected: + /** Verify gem5 configuration will support KVM emulation */ + bool validKvmEnvironment() const; + + /** System this interrupt controller belongs to */ + System &system; + + /** Kernel GIC device */ + KvmKernelGicV2 *kernelGic; + + private: + bool usingKvm; + + /** Multiplexing implementation: state transfer functions */ + void fromPl390ToKvm(); + void fromKvmToPl390(); +}; + #endif // __ARCH_ARM_KVM_GIC_HH__ |