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authorAndreas Sandberg <andreas.sandberg@arm.com>2015-06-01 19:44:19 +0100
committerAndreas Sandberg <andreas.sandberg@arm.com>2015-06-01 19:44:19 +0100
commit7c4eb3b4d88480003f8c227731f7a31bd55cb819 (patch)
tree894adf74576a37d7aea435f25be95875a553dd77 /configs/common
parentdbfd6effe0e0a620ef0bdbbc9620e43dac622e83 (diff)
downloadgem5-7c4eb3b4d88480003f8c227731f7a31bd55cb819.tar.xz
kvm, arm: Add support for aarch64
This changeset adds support for aarch64 in kvm. The CPU module supports both checkpointing and online CPU model switching as long as no devices are simulated by the host kernel. It currently has the following limitations: * The system register based generic timer can only be simulated by the host kernel. Workaround: Use a memory mapped timer instead to simulate the timer in gem5. * Simulating devices (e.g., the generic timer) in the host kernel requires that the host kernel also simulates the GIC. * ID registers in the host and in gem5 must match for switching between simulated CPUs and KVM. This is particularly important for ID registers describing memory system capabilities (e.g., ASID size, physical address size). * Switching between a virtualized CPU and a simulated CPU is currently not supported if in-kernel device emulation is used. This could be worked around by adding support for switching to the gem5 (e.g., the KvmGic) side of the device models. A simpler workaround is to avoid in-kernel device models altogether.
Diffstat (limited to 'configs/common')
-rw-r--r--configs/common/CpuConfig.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/configs/common/CpuConfig.py b/configs/common/CpuConfig.py
index f30e28246..6b530623d 100644
--- a/configs/common/CpuConfig.py
+++ b/configs/common/CpuConfig.py
@@ -52,7 +52,7 @@ _cpu_aliases_all = [
("atomic", "AtomicSimpleCPU"),
("minor", "MinorCPU"),
("detailed", "DerivO3CPU"),
- ("kvm", ("ArmKvmCPU", "X86KvmCPU")),
+ ("kvm", ("ArmKvmCPU", "ArmV8KvmCPU", "X86KvmCPU")),
]
# Filtered list of aliases. Only aliases for existing CPUs exist in