void __init arch_livepatch_init(void)
{
void *start, *end;
start = (void *)LIVEPATCH_VMAP_START;
end = (void *)LIVEPATCH_VMAP_END;
vm_init_type(VMAP_XEN, start, end);
cpus_set_cap(LIVEPATCH_FEATURE);
}
void check_local_cpu_errata(void)
{
struct arm64_cpu_capabilities *cpus = arm64_errata;
int i;
for (i = 0; cpus[i].desc; i++) {
if (!cpus[i].is_affected(&cpus[i]))
continue;
if (!cpus_have_cap(cpus[i].capability))
pr_info("enabling workaround for %s\n", cpus[i].desc);
cpus_set_cap(cpus[i].capability);
}
}
void update_cpu_capabilities(const struct arm_cpu_capabilities *caps,
const char *info)
{
int i;
for ( i = 0; caps[i].matches; i++ )
{
if ( !caps[i].matches(&caps[i]) )
continue;
if ( !cpus_have_cap(caps[i].capability) && caps[i].desc )
printk(XENLOG_INFO "%s: %s\n", info, caps[i].desc);
cpus_set_cap(caps[i].capability);
}
}
void check_cpu_capabilities(const struct arm64_cpu_capabilities *caps,
const char *info)
{
int i;
for (i = 0; caps[i].desc; i++) {
if (!caps[i].matches(&caps[i]))
continue;
if (!cpus_have_cap(caps[i].capability))
pr_info("%s %s\n", info, caps[i].desc);
cpus_set_cap(caps[i].capability);
}
/* second pass allows enable() to consider interacting capabilities */
for (i = 0; caps[i].desc; i++) {
if (cpus_have_cap(caps[i].capability) && caps[i].enable)
caps[i].enable();
}
}