#include <linux/bits.h>
#include <linux/kvm.h>
#include <linux/irqreturn.h>
#include <linux/kref.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/static_key.h>
#include <linux/types.h>
#include <kvm/iodev.h>
#include <linux/list.h>
#include <linux/jump_label.h>
#include <linux/irqchip/arm-gic-v4.h>

Include dependency graph for arm_vgic.h:

Classes
struct	vgic_global

struct	irq_ops

struct	vgic_irq

struct	vgic_io_device

struct	vgic_its

struct	vgic_redist_region

struct	vgic_dist

struct	vgic_v2_cpu_if

struct	vgic_v3_cpu_if

struct	vgic_cpu

Macros
#define	VGIC_V3_MAX_CPUS 512

#define	VGIC_V2_MAX_CPUS 8

#define	VGIC_NR_IRQS_LEGACY 256

#define	VGIC_NR_SGIS 16

#define	VGIC_NR_PPIS 16

#define	VGIC_NR_PRIVATE_IRQS (VGIC_NR_SGIS + VGIC_NR_PPIS)

#define	VGIC_MAX_PRIVATE (VGIC_NR_PRIVATE_IRQS - 1)

#define	VGIC_MAX_SPI 1019

#define	VGIC_MAX_RESERVED 1023

#define	VGIC_MIN_LPI 8192

#define	KVM_IRQCHIP_NUM_PINS (1020 - 32)

#define	irq_is_ppi(irq) ((irq) >= VGIC_NR_SGIS && (irq) < VGIC_NR_PRIVATE_IRQS)

#define	irq_is_spi(irq)

#define	VGIC_V2_MAX_LRS (1 << 6)

#define	VGIC_V3_MAX_LRS 16

#define	VGIC_V3_LR_INDEX(lr) (VGIC_V3_MAX_LRS - 1 - lr)

#define	VGIC_IRQ_SW_RESAMPLE BIT(0) /* Clear the active state for resampling */

#define	KVM_VGIC_IMP_REV_2 2 /* GICv2 restorable groups */

#define	KVM_VGIC_IMP_REV_3 3 /* GICv3 GICR_CTLR.{IW,CES,RWP} */

#define	KVM_VGIC_IMP_REV_LATEST KVM_VGIC_IMP_REV_3

#define	irqchip_in_kernel(k) (!!((k)->arch.vgic.in_kernel))

#define	vgic_initialized(k) ((k)->arch.vgic.initialized)

#define	vgic_ready(k) ((k)->arch.vgic.ready)

#define	vgic_valid_spi(k, i)

Enumerations
enum	vgic_type { VGIC_V2 , VGIC_V3 }

enum	vgic_irq_config { VGIC_CONFIG_EDGE = 0 , VGIC_CONFIG_LEVEL }

enum	iodev_type { IODEV_CPUIF , IODEV_DIST , IODEV_REDIST , IODEV_ITS }

Functions
static bool	vgic_irq_needs_resampling (struct vgic_irq *irq)

int	kvm_set_legacy_vgic_v2_addr (struct kvm kvm, struct kvm_arm_device_addr dev_addr)

void	kvm_vgic_early_init (struct kvm *kvm)

int	kvm_vgic_vcpu_init (struct kvm_vcpu *vcpu)

int	kvm_vgic_create (struct kvm *kvm, u32 type)

void	kvm_vgic_destroy (struct kvm *kvm)

void	kvm_vgic_vcpu_destroy (struct kvm_vcpu *vcpu)

int	kvm_vgic_map_resources (struct kvm *kvm)

int	kvm_vgic_hyp_init (void)

void	kvm_vgic_init_cpu_hardware (void)

int	kvm_vgic_inject_irq (struct kvm kvm, struct kvm_vcpu vcpu, unsigned int intid, bool level, void *owner)

int	kvm_vgic_map_phys_irq (struct kvm_vcpu vcpu, unsigned int host_irq, u32 vintid, struct irq_ops ops)

int	kvm_vgic_unmap_phys_irq (struct kvm_vcpu *vcpu, unsigned int vintid)

int	kvm_vgic_get_map (struct kvm_vcpu *vcpu, unsigned int vintid)

bool	kvm_vgic_map_is_active (struct kvm_vcpu *vcpu, unsigned int vintid)

int	kvm_vgic_vcpu_pending_irq (struct kvm_vcpu *vcpu)

void	kvm_vgic_load (struct kvm_vcpu *vcpu)

void	kvm_vgic_put (struct kvm_vcpu *vcpu)

void	kvm_vgic_vmcr_sync (struct kvm_vcpu *vcpu)

bool	kvm_vcpu_has_pending_irqs (struct kvm_vcpu *vcpu)

void	kvm_vgic_sync_hwstate (struct kvm_vcpu *vcpu)

void	kvm_vgic_flush_hwstate (struct kvm_vcpu *vcpu)

void	kvm_vgic_reset_mapped_irq (struct kvm_vcpu *vcpu, u32 vintid)

void	vgic_v3_dispatch_sgi (struct kvm_vcpu *vcpu, u64 reg, bool allow_group1)

static int	kvm_vgic_get_max_vcpus (void)

int	kvm_vgic_setup_default_irq_routing (struct kvm *kvm)

int	kvm_vgic_set_owner (struct kvm_vcpu vcpu, unsigned int intid, void owner)

int	kvm_vgic_v4_set_forwarding (struct kvm kvm, int irq, struct kvm_kernel_irq_routing_entry irq_entry)

int	kvm_vgic_v4_unset_forwarding (struct kvm kvm, int irq, struct kvm_kernel_irq_routing_entry irq_entry)

int	vgic_v4_load (struct kvm_vcpu *vcpu)

void	vgic_v4_commit (struct kvm_vcpu *vcpu)

int	vgic_v4_put (struct kvm_vcpu *vcpu)

void	kvm_vgic_cpu_up (void)

void	kvm_vgic_cpu_down (void)

Variables
struct vgic_global	kvm_vgic_global_state

struct static_key_false	vgic_v2_cpuif_trap

struct static_key_false	vgic_v3_cpuif_trap

Macro Definition Documentation

◆ irq_is_ppi

#define irq_is_ppi ( irq ) ((irq) >= VGIC_NR_SGIS && (irq) < VGIC_NR_PRIVATE_IRQS)

Definition at line 34 of file arm_vgic.h.

◆ irq_is_spi

#define irq_is_spi ( irq )

Value:

((irq) >= VGIC_NR_PRIVATE_IRQS && \

(irq) <= VGIC_MAX_SPI)

VGIC_MAX_SPI

#define VGIC_MAX_SPI

Definition: arm_vgic.h:29

VGIC_NR_PRIVATE_IRQS

#define VGIC_NR_PRIVATE_IRQS

Definition: arm_vgic.h:27

Definition at line 35 of file arm_vgic.h.

◆ irqchip_in_kernel

#define irqchip_in_kernel ( k ) (!!((k)->arch.vgic.in_kernel))

Definition at line 392 of file arm_vgic.h.

◆ KVM_IRQCHIP_NUM_PINS

#define KVM_IRQCHIP_NUM_PINS (1020 - 32)

Definition at line 32 of file arm_vgic.h.

◆ KVM_VGIC_IMP_REV_2

#define KVM_VGIC_IMP_REV_2 2 /* GICv2 restorable groups */

Definition at line 234 of file arm_vgic.h.

◆ KVM_VGIC_IMP_REV_3

#define KVM_VGIC_IMP_REV_3 3 /* GICv3 GICR_CTLR.{IW,CES,RWP} */

Definition at line 235 of file arm_vgic.h.

◆ KVM_VGIC_IMP_REV_LATEST

#define KVM_VGIC_IMP_REV_LATEST KVM_VGIC_IMP_REV_3

Definition at line 236 of file arm_vgic.h.

◆ vgic_initialized

#define vgic_initialized ( k ) ((k)->arch.vgic.initialized)

Definition at line 393 of file arm_vgic.h.

◆ VGIC_IRQ_SW_RESAMPLE

#define VGIC_IRQ_SW_RESAMPLE BIT(0) /* Clear the active state for resampling */

Definition at line 107 of file arm_vgic.h.

◆ VGIC_MAX_PRIVATE

#define VGIC_MAX_PRIVATE (VGIC_NR_PRIVATE_IRQS - 1)

Definition at line 28 of file arm_vgic.h.

◆ VGIC_MAX_RESERVED

#define VGIC_MAX_RESERVED 1023

Definition at line 30 of file arm_vgic.h.

◆ VGIC_MAX_SPI

#define VGIC_MAX_SPI 1019

Definition at line 29 of file arm_vgic.h.

◆ VGIC_MIN_LPI

#define VGIC_MIN_LPI 8192

Definition at line 31 of file arm_vgic.h.

◆ VGIC_NR_IRQS_LEGACY

#define VGIC_NR_IRQS_LEGACY 256

Definition at line 24 of file arm_vgic.h.

◆ VGIC_NR_PPIS

#define VGIC_NR_PPIS 16

Definition at line 26 of file arm_vgic.h.

◆ VGIC_NR_PRIVATE_IRQS

#define VGIC_NR_PRIVATE_IRQS (VGIC_NR_SGIS + VGIC_NR_PPIS)

Definition at line 27 of file arm_vgic.h.

◆ VGIC_NR_SGIS

#define VGIC_NR_SGIS 16

Definition at line 25 of file arm_vgic.h.

◆ vgic_ready

#define vgic_ready ( k ) ((k)->arch.vgic.ready)

Definition at line 394 of file arm_vgic.h.

◆ VGIC_V2_MAX_CPUS

#define VGIC_V2_MAX_CPUS 8

Definition at line 23 of file arm_vgic.h.

◆ VGIC_V2_MAX_LRS

#define VGIC_V2_MAX_LRS (1 << 6)

Definition at line 88 of file arm_vgic.h.

◆ VGIC_V3_LR_INDEX

#define VGIC_V3_LR_INDEX ( lr ) (VGIC_V3_MAX_LRS - 1 - lr)

Definition at line 90 of file arm_vgic.h.

◆ VGIC_V3_MAX_CPUS

#define VGIC_V3_MAX_CPUS 512

Definition at line 22 of file arm_vgic.h.

◆ VGIC_V3_MAX_LRS

#define VGIC_V3_MAX_LRS 16

Definition at line 89 of file arm_vgic.h.

◆ vgic_valid_spi

#define vgic_valid_spi	(	k,
		i
	)

Value:

(((i) >= VGIC_NR_PRIVATE_IRQS) && \

((i) < (k)->arch.vgic.nr_spis + VGIC_NR_PRIVATE_IRQS))

Definition at line 395 of file arm_vgic.h.

Enumeration Type Documentation

◆ iodev_type

enum iodev_type

Enumerator
IODEV_CPUIF
IODEV_DIST
IODEV_REDIST
IODEV_ITS

Definition at line 168 of file arm_vgic.h.

                 {
     IODEV_CPUIF,
     IODEV_DIST,
     IODEV_REDIST,
     IODEV_ITS
 };

◆ vgic_irq_config

enum vgic_irq_config

Enumerator
VGIC_CONFIG_EDGE
VGIC_CONFIG_LEVEL

Definition at line 92 of file arm_vgic.h.

                      {
     VGIC_CONFIG_EDGE = 0,
     VGIC_CONFIG_LEVEL
 };

◆ vgic_type

enum vgic_type

Enumerator
VGIC_V2
VGIC_V3

Definition at line 38 of file arm_vgic.h.

                {
     VGIC_V2,        /* Good ol' GICv2 */
     VGIC_V3,        /* New fancy GICv3 */
 };

Function Documentation

◆ kvm_set_legacy_vgic_v2_addr()

int kvm_set_legacy_vgic_v2_addr	(	struct kvm *	kvm,
		struct kvm_arm_device_addr *	dev_addr
	)

◆ kvm_vcpu_has_pending_irqs()

bool kvm_vcpu_has_pending_irqs ( struct kvm_vcpu * vcpu )

◆ kvm_vgic_cpu_down()

void kvm_vgic_cpu_down ( void )

◆ kvm_vgic_cpu_up()

void kvm_vgic_cpu_up ( void )

◆ kvm_vgic_create()

int kvm_vgic_create	(	struct kvm *	kvm,
		u32	type
	)

◆ kvm_vgic_destroy()

void kvm_vgic_destroy ( struct kvm * kvm )

◆ kvm_vgic_early_init()

void kvm_vgic_early_init ( struct kvm * kvm )

◆ kvm_vgic_flush_hwstate()

void kvm_vgic_flush_hwstate ( struct kvm_vcpu * vcpu )

◆ kvm_vgic_get_map()

int kvm_vgic_get_map	(	struct kvm_vcpu *	vcpu,
		unsigned int	vintid
	)

◆ kvm_vgic_get_max_vcpus()

static int kvm_vgic_get_max_vcpus ( void )

inlinestatic

kvm_vgic_get_max_vcpus - Get the maximum number of VCPUs allowed by HW

The host's GIC naturally limits the maximum amount of VCPUs a guest can use.

Definition at line 411 of file arm_vgic.h.

 {
     return kvm_vgic_global_state.max_gic_vcpus;
 }

◆ kvm_vgic_hyp_init()

int kvm_vgic_hyp_init ( void )

◆ kvm_vgic_init_cpu_hardware()

void kvm_vgic_init_cpu_hardware ( void )

◆ kvm_vgic_inject_irq()

int kvm_vgic_inject_irq	(	struct kvm *	kvm,
		struct kvm_vcpu *	vcpu,
		unsigned int	intid,
		bool	level,
		void *	owner
	)

◆ kvm_vgic_load()

void kvm_vgic_load ( struct kvm_vcpu * vcpu )

◆ kvm_vgic_map_is_active()

bool kvm_vgic_map_is_active	(	struct kvm_vcpu *	vcpu,
		unsigned int	vintid
	)

◆ kvm_vgic_map_phys_irq()

int kvm_vgic_map_phys_irq	(	struct kvm_vcpu *	vcpu,
		unsigned int	host_irq,
		u32	vintid,
		struct irq_ops *	ops
	)

◆ kvm_vgic_map_resources()

int kvm_vgic_map_resources ( struct kvm * kvm )

◆ kvm_vgic_put()

void kvm_vgic_put ( struct kvm_vcpu * vcpu )

◆ kvm_vgic_reset_mapped_irq()

void kvm_vgic_reset_mapped_irq	(	struct kvm_vcpu *	vcpu,
		u32	vintid
	)

◆ kvm_vgic_set_owner()

int kvm_vgic_set_owner	(	struct kvm_vcpu *	vcpu,
		unsigned int	intid,
		void *	owner
	)

◆ kvm_vgic_setup_default_irq_routing()

int kvm_vgic_setup_default_irq_routing ( struct kvm * kvm )

kvm_vgic_setup_default_irq_routing: Setup a default flat gsi routing table mapping all SPIs

◆ kvm_vgic_sync_hwstate()

void kvm_vgic_sync_hwstate ( struct kvm_vcpu * vcpu )

◆ kvm_vgic_unmap_phys_irq()

int kvm_vgic_unmap_phys_irq	(	struct kvm_vcpu *	vcpu,
		unsigned int	vintid
	)

◆ kvm_vgic_v4_set_forwarding()

int kvm_vgic_v4_set_forwarding	(	struct kvm *	kvm,
		int	irq,
		struct kvm_kernel_irq_routing_entry *	irq_entry
	)

◆ kvm_vgic_v4_unset_forwarding()

int kvm_vgic_v4_unset_forwarding	(	struct kvm *	kvm,
		int	irq,
		struct kvm_kernel_irq_routing_entry *	irq_entry
	)

◆ kvm_vgic_vcpu_destroy()

void kvm_vgic_vcpu_destroy ( struct kvm_vcpu * vcpu )

◆ kvm_vgic_vcpu_init()

int kvm_vgic_vcpu_init ( struct kvm_vcpu * vcpu )

◆ kvm_vgic_vcpu_pending_irq()

int kvm_vgic_vcpu_pending_irq ( struct kvm_vcpu * vcpu )

◆ kvm_vgic_vmcr_sync()

void kvm_vgic_vmcr_sync ( struct kvm_vcpu * vcpu )

◆ vgic_irq_needs_resampling()

static bool vgic_irq_needs_resampling ( struct vgic_irq * irq )

inlinestatic

Definition at line 160 of file arm_vgic.h.

 {
     return irq->ops && (irq->ops->flags & VGIC_IRQ_SW_RESAMPLE);
 }

◆ vgic_v3_dispatch_sgi()

void vgic_v3_dispatch_sgi	(	struct kvm_vcpu *	vcpu,
		u64	reg,
		bool	allow_group1
	)

◆ vgic_v4_commit()

void vgic_v4_commit ( struct kvm_vcpu * vcpu )

◆ vgic_v4_load()

int vgic_v4_load ( struct kvm_vcpu * vcpu )

◆ vgic_v4_put()

int vgic_v4_put ( struct kvm_vcpu * vcpu )

Variable Documentation

◆ kvm_vgic_global_state

struct vgic_global kvm_vgic_global_state

extern

◆ vgic_v2_cpuif_trap

struct static_key_false vgic_v2_cpuif_trap

extern

◆ vgic_v3_cpuif_trap

struct static_key_false vgic_v3_cpuif_trap

extern

Classes

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ irq_is_ppi

◆ irq_is_spi

◆ irqchip_in_kernel

◆ KVM_IRQCHIP_NUM_PINS

◆ KVM_VGIC_IMP_REV_2

◆ KVM_VGIC_IMP_REV_3

◆ KVM_VGIC_IMP_REV_LATEST

◆ vgic_initialized

◆ VGIC_IRQ_SW_RESAMPLE

◆ VGIC_MAX_PRIVATE

◆ VGIC_MAX_RESERVED

◆ VGIC_MAX_SPI

◆ VGIC_MIN_LPI

◆ VGIC_NR_IRQS_LEGACY

◆ VGIC_NR_PPIS

◆ VGIC_NR_PRIVATE_IRQS

◆ VGIC_NR_SGIS

◆ vgic_ready

◆ VGIC_V2_MAX_CPUS

◆ VGIC_V2_MAX_LRS

◆ VGIC_V3_LR_INDEX

◆ VGIC_V3_MAX_CPUS

◆ VGIC_V3_MAX_LRS

◆ vgic_valid_spi

Enumeration Type Documentation

◆ iodev_type

◆ vgic_irq_config

◆ vgic_type

Function Documentation

◆ kvm_set_legacy_vgic_v2_addr()

◆ kvm_vcpu_has_pending_irqs()

◆ kvm_vgic_cpu_down()

◆ kvm_vgic_cpu_up()

◆ kvm_vgic_create()

◆ kvm_vgic_destroy()

◆ kvm_vgic_early_init()

◆ kvm_vgic_flush_hwstate()

◆ kvm_vgic_get_map()

◆ kvm_vgic_get_max_vcpus()

◆ kvm_vgic_hyp_init()

◆ kvm_vgic_init_cpu_hardware()

◆ kvm_vgic_inject_irq()

◆ kvm_vgic_load()

◆ kvm_vgic_map_is_active()

◆ kvm_vgic_map_phys_irq()

◆ kvm_vgic_map_resources()

◆ kvm_vgic_put()

◆ kvm_vgic_reset_mapped_irq()

◆ kvm_vgic_set_owner()

◆ kvm_vgic_setup_default_irq_routing()

◆ kvm_vgic_sync_hwstate()

◆ kvm_vgic_unmap_phys_irq()

◆ kvm_vgic_v4_set_forwarding()

◆ kvm_vgic_v4_unset_forwarding()

◆ kvm_vgic_vcpu_destroy()

◆ kvm_vgic_vcpu_init()

◆ kvm_vgic_vcpu_pending_irq()

◆ kvm_vgic_vmcr_sync()

◆ vgic_irq_needs_resampling()

◆ vgic_v3_dispatch_sgi()

◆ vgic_v4_commit()

◆ vgic_v4_load()

◆ vgic_v4_put()

Variable Documentation

◆ kvm_vgic_global_state

◆ vgic_v2_cpuif_trap

◆ vgic_v3_cpuif_trap