gem5::KvmKernelGicV2 Class Reference

#include <gic.hh>

Inheritance diagram for gem5::KvmKernelGicV2:

Public Member Functions
	KvmKernelGicV2 (KvmVM &vm, const MuxingKvmGicV2Params &params)
	Instantiate a KVM in-kernel GICv2 model. More...
uint32_t	readDistributor (ContextID ctx, Addr daddr) override
uint32_t	readCpu (ContextID ctx, Addr daddr) override
void	writeDistributor (ContextID ctx, Addr daddr, uint32_t data) override
void	writeCpu (ContextID ctx, Addr daddr, uint32_t data) override
Public Member Functions inherited from gem5::KvmKernelGic
	KvmKernelGic (KvmVM &vm, uint32_t dev, unsigned it_lines)
	Instantiate a KVM in-kernel GIC model. More...
virtual	~KvmKernelGic ()
	KvmKernelGic (const KvmKernelGic &other)=delete
	KvmKernelGic (const KvmKernelGic &&other)=delete
KvmKernelGic &	operator= (const KvmKernelGic &&rhs)=delete
KvmKernelGic &	operator= (const KvmKernelGic &rhs)=delete
virtual void	init ()
void	setSPI (unsigned spi)
	Raise a shared peripheral interrupt. More...
void	clearSPI (unsigned spi)
	Clear a shared peripheral interrupt. More...
void	setPPI (unsigned vcpu, unsigned ppi)
	Raise a private peripheral interrupt. More...
void	clearPPI (unsigned vcpu, unsigned ppi)
	Clear a private peripheral interrupt. More...

Protected Member Functions
uint32_t	getGicReg (unsigned group, unsigned vcpu, unsigned offset)
	Get value of GIC register "from" a cpu. More...
void	setGicReg (unsigned group, unsigned vcpu, unsigned offset, unsigned value)
	Set value of GIC register "from" a cpu. More...
Protected Member Functions inherited from gem5::KvmKernelGic
void	setIntState (unsigned type, unsigned vcpu, unsigned irq, bool high)
	Update the kernel's VGIC interrupt state. More...

Private Attributes
const AddrRange	cpuRange
	Address range for the CPU interfaces. More...
const AddrRange	distRange
	Address range for the distributor. More...

Additional Inherited Members
Static Protected Member Functions inherited from gem5::GicV2Registers
static void	copyDistRegister (GicV2Registers *from, GicV2Registers *to, ContextID ctx, Addr daddr)
static void	copyCpuRegister (GicV2Registers *from, GicV2Registers *to, ContextID ctx, Addr daddr)
static void	copyBankedDistRange (System *sys, GicV2Registers *from, GicV2Registers *to, Addr daddr, size_t size)
static void	clearBankedDistRange (System *sys, GicV2Registers *to, Addr daddr, size_t size)
static void	copyDistRange (GicV2Registers *from, GicV2Registers *to, Addr daddr, size_t size)
static void	clearDistRange (GicV2Registers *to, Addr daddr, size_t size)
Protected Attributes inherited from gem5::KvmKernelGic
KvmVM &	vm
	KVM VM in the parent system. More...
KvmDevice	kdev
	Kernel interface to the GIC. More...

Detailed Description

Definition at line 140 of file gic.hh.

Constructor & Destructor Documentation

KvmKernelGicV2()

gem5::KvmKernelGicV2::KvmKernelGicV2	(	KvmVM &	vm,
		const MuxingKvmGicV2Params &	params
	)

Instantiate a KVM in-kernel GICv2 model.

This constructor instantiates an in-kernel GICv2 model and wires it up to the virtual memory system.

Parameters

vm	KVM VM representing this system
params	MuxingKvmGicV2 params

Definition at line 118 of file gic.cc.

References gem5::KvmKernelGic::kdev, gem5::VegaISA::p, and gem5::KvmDevice::setAttr().

Member Function Documentation

getGicReg()

uint32_t gem5::KvmKernelGicV2::getGicReg ( unsigned  group, unsigned  vcpu, unsigned  offset  )

protected

Get value of GIC register "from" a cpu.

Parameters

group	Distributor or CPU (KVM_DEV_ARM_VGIC_GRP_{DIST,CPU}_REGS)
vcpu	CPU id within KVM
offset	register offset

Definition at line 131 of file gic.cc.

References gem5::ArmISA::attr, gem5::KvmDevice::getAttrPtr(), gem5::KvmKernelGic::kdev, gem5::ArmISA::offset, and gem5::X86ISA::reg.

Referenced by readCpu(), and readDistributor().

readCpu()

uint32_t gem5::KvmKernelGicV2::readCpu ( ContextID  ctx, Addr  daddr  )

overridevirtual

Implements gem5::GicV2Registers.

Definition at line 166 of file gic.cc.

References gem5::KvmVM::contextIdToVCpuId(), getGicReg(), and gem5::KvmKernelGic::vm.

readDistributor()

uint32_t gem5::KvmKernelGicV2::readDistributor ( ContextID  ctx, Addr  daddr  )

overridevirtual

Implements gem5::GicV2Registers.

Definition at line 159 of file gic.cc.

References gem5::KvmVM::contextIdToVCpuId(), getGicReg(), and gem5::KvmKernelGic::vm.

setGicReg()

void gem5::KvmKernelGicV2::setGicReg ( unsigned  group, unsigned  vcpu, unsigned  offset, unsigned  value  )

protected

Set value of GIC register "from" a cpu.

Parameters

group	Distributor or CPU (KVM_DEV_ARM_VGIC_GRP_{DIST,CPU}_REGS)
vcpu	CPU id within KVM
offset	register offset
value	value to set register to

Definition at line 145 of file gic.cc.

References gem5::ArmISA::attr, gem5::KvmKernelGic::kdev, gem5::ArmISA::offset, gem5::X86ISA::reg, and gem5::KvmDevice::setAttrPtr().

Referenced by writeCpu(), and writeDistributor().

writeCpu()

void gem5::KvmKernelGicV2::writeCpu ( ContextID  ctx, Addr  daddr, uint32_t  data  )

overridevirtual

Implements gem5::GicV2Registers.

Definition at line 180 of file gic.cc.

References gem5::KvmVM::contextIdToVCpuId(), data, setGicReg(), and gem5::KvmKernelGic::vm.

writeDistributor()

void gem5::KvmKernelGicV2::writeDistributor ( ContextID  ctx, Addr  daddr, uint32_t  data  )

overridevirtual

Implements gem5::GicV2Registers.

Definition at line 173 of file gic.cc.

References gem5::KvmVM::contextIdToVCpuId(), data, setGicReg(), and gem5::KvmKernelGic::vm.

Member Data Documentation

cpuRange

const AddrRange gem5::KvmKernelGicV2::cpuRange

private

Address range for the CPU interfaces.

Definition at line 186 of file gic.hh.

distRange

const AddrRange gem5::KvmKernelGicV2::distRange

private

Address range for the distributor.

Definition at line 188 of file gic.hh.

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The documentation for this class was generated from the following files:

• arch/arm/kvm/gic.hh
• arch/arm/kvm/gic.cc