Ejemplos de vmx_unload_guest_pcore en C++ (Cpp)

Ejemplo n.º 1

void unload_guest_pcore(struct proc *p, int guest_pcoreid)
{
	struct guest_pcore *gpc;
	struct per_cpu_info *pcpui = &per_cpu_info[core_id()];

	gpc = lookup_guest_pcore(p, guest_pcoreid);
	assert(gpc);
	spin_lock(&p->vmm.lock);
	assert(gpc->cpu != -1);
	vmx_unload_guest_pcore(gpc);
	gpc->cpu = -1;

	/* Save guest's xcr0 and restore Akaros's default. */
	gpc->xcr0 = rxcr0();
	lxcr0(__proc_global_info.x86_default_xcr0);

	/* We manage these MSRs manually. */
	gpc->msr_kern_gs_base = read_kern_gsbase();
	gpc->msr_star = read_msr(MSR_STAR);
	gpc->msr_lstar = read_msr(MSR_LSTAR);
	gpc->msr_sfmask = read_msr(MSR_SFMASK);

	write_kern_gsbase((uint64_t)pcpui);
	if (gpc->msr_star != AKAROS_MSR_STAR)
		write_msr(MSR_STAR, AKAROS_MSR_STAR);
	if (gpc->msr_lstar != AKAROS_MSR_LSTAR)
		write_msr(MSR_LSTAR, AKAROS_MSR_LSTAR);
	if (gpc->msr_sfmask, AKAROS_MSR_SFMASK)
		write_msr(MSR_SFMASK, AKAROS_MSR_SFMASK);

	/* As soon as we unlock, this gpc can be started on another core */
	spin_unlock(&p->vmm.lock);
	pcpui->guest_pcoreid = -1;
}

Ejemplo n.º 2

Archivo: vmm.c Proyecto: anandab/akaros

void unload_guest_pcore(struct proc *p, int guest_pcoreid)
{
	struct guest_pcore *gpc;
	struct per_cpu_info *pcpui = &per_cpu_info[core_id()];

	gpc = lookup_guest_pcore(p, guest_pcoreid);
	assert(gpc);
	spin_lock(&p->vmm.lock);
	assert(gpc->cpu != -1);
	ept_sync_context(gpc_get_eptp(gpc));
	vmx_unload_guest_pcore(gpc);
	gpc->cpu = -1;

	/* Save guest's xcr0 and restore Akaros's default. */
	gpc->xcr0 = rxcr0();
	lxcr0(x86_default_xcr0);

	/* As soon as we unlock, this gpc can be started on another core */
	spin_unlock(&p->vmm.lock);
	pcpui->guest_pcoreid = -1;
}