C++ (Cpp) alloc_vcpu_guest_context Beispiele

Beispiel #1

Datei: vpsci.c Projekt: avsm/xen-1

int do_psci_cpu_on(uint32_t vcpuid, register_t entry_point)
{
    struct vcpu *v;
    struct domain *d = current->domain;
    struct vcpu_guest_context *ctxt;
    int rc;
    int is_thumb = entry_point & 1;

    if ( (vcpuid < 0) || (vcpuid >= MAX_VIRT_CPUS) )
        return PSCI_EINVAL;

    if ( vcpuid >= d->max_vcpus || (v = d->vcpu[vcpuid]) == NULL )
        return PSCI_EINVAL;

    /* THUMB set is not allowed with 64-bit domain */
    if ( is_pv64_domain(d) && is_thumb )
        return PSCI_EINVAL;

    if ( (ctxt = alloc_vcpu_guest_context()) == NULL )
        return PSCI_DENIED;

    vgic_clear_pending_irqs(v);

    memset(ctxt, 0, sizeof(*ctxt));
    ctxt->user_regs.pc64 = (u64) entry_point;
    ctxt->sctlr = SCTLR_GUEST_INIT;
    ctxt->ttbr0 = 0;
    ctxt->ttbr1 = 0;
    ctxt->ttbcr = 0; /* Defined Reset Value */
    if ( is_pv32_domain(d) )
        ctxt->user_regs.cpsr = PSR_GUEST32_INIT;
#ifdef CONFIG_ARM_64
    else
        ctxt->user_regs.cpsr = PSR_GUEST64_INIT;
#endif

    /* Start the VCPU with THUMB set if it's requested by the kernel */
    if ( is_thumb )
        ctxt->user_regs.cpsr |= PSR_THUMB;
    ctxt->flags = VGCF_online;

    domain_lock(d);
    rc = arch_set_info_guest(v, ctxt);
    free_vcpu_guest_context(ctxt);

    if ( rc < 0 )
    {
        domain_unlock(d);
        return PSCI_DENIED;
    }
    domain_unlock(d);

    vcpu_wake(v);

    return PSCI_SUCCESS;
}

Beispiel #2

Datei: psci.c Projekt: CrazyXen/XEN_CODE

int do_psci_cpu_on(uint32_t vcpuid, register_t entry_point)
{
    struct vcpu *v;
    struct domain *d = current->domain;
    struct vcpu_guest_context *ctxt;
    int rc;

    if ( (vcpuid < 0) || (vcpuid >= MAX_VIRT_CPUS) )
        return PSCI_EINVAL;

    if ( vcpuid >= d->max_vcpus || (v = d->vcpu[vcpuid]) == NULL )
        return PSCI_EINVAL;

    if ( (ctxt = alloc_vcpu_guest_context()) == NULL )
        return PSCI_DENIED;

    vgic_clear_pending_irqs(v);

    memset(ctxt, 0, sizeof(*ctxt));
    ctxt->user_regs.pc64 = (u64) entry_point;
    ctxt->sctlr = SCTLR_BASE;
    ctxt->ttbr0 = 0;
    ctxt->ttbr1 = 0;
    ctxt->ttbcr = 0; /* Defined Reset Value */
    ctxt->user_regs.cpsr = PSR_GUEST_INIT;
    ctxt->flags = VGCF_online;

    domain_lock(d);
    rc = arch_set_info_guest(v, ctxt);
    free_vcpu_guest_context(ctxt);

    if ( rc < 0 )
    {
        domain_unlock(d);
        return PSCI_DENIED;
    }
    domain_unlock(d);

    vcpu_wake(v);

    return PSCI_SUCCESS;
}

Beispiel #3

Datei: vpsci.c Projekt: Fantu/Xen

static int do_common_cpu_on(register_t target_cpu, register_t entry_point,
                       register_t context_id,int ver)
{
    struct vcpu *v;
    struct domain *d = current->domain;
    struct vcpu_guest_context *ctxt;
    int rc;
    int is_thumb = entry_point & 1;
    register_t vcpuid;

    vcpuid = vaffinity_to_vcpuid(target_cpu);

    if ( vcpuid >= d->max_vcpus || (v = d->vcpu[vcpuid]) == NULL )
        return PSCI_INVALID_PARAMETERS;

    /* THUMB set is not allowed with 64-bit domain */
    if ( is_64bit_domain(d) && is_thumb )
        return PSCI_INVALID_PARAMETERS;

    if( ( ver == XEN_PSCI_V_0_2 ) &&
            ( !test_bit(_VPF_down, &v->pause_flags) ) )
        return PSCI_ALREADY_ON;

    if ( (ctxt = alloc_vcpu_guest_context()) == NULL )
        return PSCI_DENIED;

    vgic_clear_pending_irqs(v);

    memset(ctxt, 0, sizeof(*ctxt));
    ctxt->user_regs.pc64 = (u64) entry_point;
    ctxt->sctlr = SCTLR_GUEST_INIT;
    ctxt->ttbr0 = 0;
    ctxt->ttbr1 = 0;
    ctxt->ttbcr = 0; /* Defined Reset Value */
    if ( is_32bit_domain(d) )
    {
        ctxt->user_regs.cpsr = PSR_GUEST32_INIT;
        if( ver == XEN_PSCI_V_0_2 )
            ctxt->user_regs.r0_usr = context_id;
    }
#ifdef CONFIG_ARM_64
    else
    {
        ctxt->user_regs.cpsr = PSR_GUEST64_INIT;
        if( ver == XEN_PSCI_V_0_2 )
            ctxt->user_regs.x0 = context_id;
    }
#endif

    /* Start the VCPU with THUMB set if it's requested by the kernel */
    if ( is_thumb )
        ctxt->user_regs.cpsr |= PSR_THUMB;
    ctxt->flags = VGCF_online;

    domain_lock(d);
    rc = arch_set_info_guest(v, ctxt);
    free_vcpu_guest_context(ctxt);

    if ( rc < 0 )
    {
        domain_unlock(d);
        return PSCI_DENIED;
    }
    domain_unlock(d);

    vcpu_wake(v);

    return PSCI_SUCCESS;
}