diff options
Diffstat (limited to 'src/dev/arm/Gic.py')
-rw-r--r-- | src/dev/arm/Gic.py | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/dev/arm/Gic.py b/src/dev/arm/Gic.py index 5338cca2a..622dcf616 100644 --- a/src/dev/arm/Gic.py +++ b/src/dev/arm/Gic.py @@ -95,3 +95,42 @@ class Gicv2m(PioDevice): pio_delay = Param.Latency('10ns', "Delay for PIO r/w") gic = Param.BaseGic(Parent.any, "Gic on which to trigger interrupts") frames = VectorParam.Gicv2mFrame([], "Power of two number of frames") + +class VGic(PioDevice): + type = 'VGic' + cxx_header = "dev/arm/vgic.hh" + gic = Param.BaseGic(Parent.any, "Gic to use for interrupting") + platform = Param.Platform(Parent.any, "Platform this device is part of.") + vcpu_addr = Param.Addr(0, "Address for vcpu interfaces") + hv_addr = Param.Addr(0, "Address for hv control") + pio_delay = Param.Latency('10ns', "Delay for PIO r/w") + # The number of list registers is not currently configurable at runtime. + ppint = Param.UInt32("HV maintenance interrupt number") + + def generateDeviceTree(self, state): + gic = self.gic.unproxy(self) + + node = FdtNode("interrupt-controller") + node.appendCompatible(["gem5,gic", "arm,cortex-a15-gic", + "arm,cortex-a9-gic"]) + node.append(FdtPropertyWords("#interrupt-cells", [3])) + node.append(FdtPropertyWords("#address-cells", [0])) + node.append(FdtProperty("interrupt-controller")) + + regs = ( + state.addrCells(gic.dist_addr) + + state.sizeCells(0x1000) + + state.addrCells(gic.cpu_addr) + + state.sizeCells(0x1000) + + state.addrCells(self.hv_addr) + + state.sizeCells(0x2000) + + state.addrCells(self.vcpu_addr) + + state.sizeCells(0x2000) ) + + node.append(FdtPropertyWords("reg", regs)) + node.append(FdtPropertyWords("interrupts", + [1, int(self.ppint)-16, 0xf04])) + + node.appendPhandle(gic) + + yield node |