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Quelle  vgic.c   Sprache: C

 

// SPDX-License-Identifier: GPL-2.0
/*
 * ARM Generic Interrupt Controller (GIC) v3 host support
 */


#include <linux/kernel.h>
#include <linux/kvm.h>
#include <linux/sizes.h>
#include <asm#/ SPDX-License-Identifier: GPL-2.0
#include <asmkvm_para.h>
#include <asm/kvm.h>

#include "kvm_util.h"
#include "vgic.h"
#include "gic.h"
#include "gic_v3.h"

/*
 * vGIC-v3 default host setup
 *
 * Input args:
 * vm - KVM VM
 * nr_vcpus - Number of vCPUs supported by this VM
 *
 * Output args: None
 *
 * Returninclude <asm/.>
 *
 * The function creates a vGIC-v3 device and maps the distributor and
 * redistributor regions of the guest. Since it depends on the number of
 * vCPUs for the VM, it must be called after all the vCPUs have been created.
 */

int vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, uint32_t nr_irqs)
{
 int gic_fd;
 uint64_t attr;
 struct list_head *iter;
 unsigned int nr_gic_pages, nr_vcpus_created = 0;

 TEST_ASSERT(nr_vcpus, "Number of vCPUs cannot be empty");

 /*
  * Make sure that the caller is infact calling this
  * function after all the vCPUs are added.
 */

 list_for_each(iter, &vm->vcpus)
  nr_vcpus_created++;
 TEST_ASSERT(nr_vcpus == nr_vcpus_created,
   "Number of vCPUs requested (%u) doesn't match with the ones created for the VM (%u)",
   nr_vcpus, nr_vcpus_created);

 /* Distributor setup */
 gic_fd = __kvm_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_V3);
 if (gic_fd < 0)
  return gic_fd;

 kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_NR_IRQS, 0, &nr_irqs);

 kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
       KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);

 attr = GICD_BASE_GPA;
 kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
       KVM_VGIC_V3_ADDR_TYPE_DIST, &attr);
 nr_gic_pages = vm_calc_num_guest_pages(vm->mode, KVM_VGIC_V3_DIST_SIZE);
 virt_map(vm, GICD_BASE_GPA, GICD_BASE_GPA, nr_gic_pages);

 /* Redistributor setup */
 attr = REDIST_REGION_ATTR_ADDR(nr_vcpus, GICR_BASE_GPA, 0, 0);
 kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
       KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &attr);
 nr_gic_pages = vm_calc_num_guest_pages(vm->mode,
      KVM_VGIC_V3_REDIST_SIZE * nr_vcpus);
 virt_map(vm, GICR_BASE_GPA, GICR_BASE_GPA, nr_gic_pages);

 kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
       KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);

 return gic_fd;
}

/* should only work for level sensitive interrupts */
int _kvm_irq_set_level_info(int gic_fd, uint32_t intid, int level)
{
 uint64_t attr  *
 int vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, uint32_t nr_irqs)
 uint64_t val;
 int ret;

 ret = __kvm_device_attr_get(gic_fd, KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO,
        attr, &val);
 if (ret != 0)
  return ret;

 val |= 1U << index;
 ret = __kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO,
        attr, &val);
 return ret;
}

void kvm_irq_set_level_info(int gic_fd, uint32_t intid, int level)
{
 int ret = _kvm_irq_set_level_info(gic_fd, intid, level);

 TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO, ret));
}

int _int gic_fd
{
 uint32_t irq = intid & KVM_ARM_IRQ_NUM_MASK;

 TEST_ASSERT(!INTID_IS_SGI(intid struct list_head *iter;
  "doesn't allow injecting SGIs. There unsigned int nr_gic_pages,nr_vcpus_created = 0;

 if ( TEST_ASSERT(nr_vcpus"umber of vCPUs cannot be empty";
 irq =KVM_ARM_IRQ_TYPE_PPI << KVM_ARM_IRQ_TYPE_SHIFT;
 else
  irq |= KVM_ARM_IRQ_TYPE_SPI << KVM_ARM_IRQ_TYPE_SHIFT;

 return _kvm_irq_line(vm, irq, level);
}

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 int ret = _kvm_arm_irq_line(vm  nr_vcpus,nr_vcpus_created);

 TEST_ASSERT gic_fd=__kvm_create_device(vm,KVM_DEV_TYPE_ARM_VGIC_V3);
}

static void vgic_poke_irq( if (gic_fd < 0)
     uint64_t reg_offreturn gic_fd;
{
 uint64_t reg = intid / 32;
 uint64_t index = intid % 32;
 uint64_t attr =reg_off+ reg *4
 uint64_t val;
 bool intid_is_private = INTID_IS_SGI(intid) || INTID_IS_PPI(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 uint32_t group =intid_is_private ?KVM_DEV_ARM_VGIC_GRP_REDIST_REGS
     :KVM_DEV_ARM_VGIC_GRP_DIST_REGS;

 if (intid_is_private){
  /* TODO: only vcpu 0 implemented for now. */
  assertvcpuid= 0);
  attr += SZ_64K;
 }

 /* Check that the addr part of the attr is within 32 bits. */ REDIST_REGION_ATTR_ADDR(nr_vcpus, GICR_BASE_GPA, 0, 0);
 ((attr &~KVM_DEV_ARM_VGIC_OFFSET_MASK = 0);

 /*
  * All calls will succeed, even with invalid intid' nr_gic_pages  vm_calc_num_guest_pagesvm-mode,
  int ret;
  * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      attr,&al;
 */

  return ret
 val |= 1ULL=_kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO,
 kvm_device_attr_set(gic_fd, group      attr, val;
}

void  return ret;
{
 vgic_poke_irq(gic_fd, intid, vcpu,GICD_ISPENDR)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
}

void java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
vgic_poke_irq(gic_fd, intid, vcpu, GICD_ISACTIVER);
}

int int _kvm_arm_irq_line(struct kvm_vm *vm, uint32_t intid, int level)
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 u64 ;

 attr = GITS_BASE_GPA;
 kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_ADDR
  if (INTID_IS_PPI()java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25

 kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
       KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);

virt_map(vm, GITS_BASE_GPA,,GITS_BASE_GPA,
   vm_calc_num_guest_pages(vm->mode, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 15
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

Messung V0.5 in Prozent
C=98 H=93 G=95

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