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Xen ARM initialization fixes.

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Merge tag 'fixes-for-3.10-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/sstabellini/xen

Pull Xen/arm fixes from Stefano Stabellini:
 "This contains a couple of Xen on ARM initialization fixes and a patch
  to improve error handling"

* tag 'fixes-for-3.10-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/sstabellini/xen:
  xen/arm: rename xen_secondary_init and run it on every online cpu
  xen/arm: do not handle VCPUOP_register_vcpu_info failures
  xen/arm: initialize pm functions later
This commit is contained in:
Linus Torvalds 2013-05-13 19:03:49 -07:00
commit 674825d050
1 changed files with 14 additions and 19 deletions
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33
arch/arm/xen/enlighten.c
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@ -152,11 +152,12 @@ int xen_unmap_domain_mfn_range(struct vm_area_struct *vma,
}
EXPORT_SYMBOL_GPL(xen_unmap_domain_mfn_range);
static int __init xen_secondary_init(unsigned int cpu)
static void __init xen_percpu_init(void *unused)
{
struct vcpu_register_vcpu_info info;
struct vcpu_info *vcpup;
int err;
int cpu = get_cpu();
pr_info("Xen: initializing cpu%d\n", cpu);
vcpup = per_cpu_ptr(xen_vcpu_info, cpu);
@ -165,14 +166,10 @@ static int __init xen_secondary_init(unsigned int cpu)
info.offset = offset_in_page(vcpup);
err = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_info, cpu, &info);
if (err) {
pr_debug("register_vcpu_info failed: err=%d\n", err);
} else {
/* This cpu is using the registered vcpu info, even if
later ones fail to. */
per_cpu(xen_vcpu, cpu) = vcpup;
}
return 0;
BUG_ON(err);
per_cpu(xen_vcpu, cpu) = vcpup;
enable_percpu_irq(xen_events_irq, 0);
}
static void xen_restart(char str, const char *cmd)
@ -208,7 +205,6 @@ static int __init xen_guest_init(void)
const char *version = NULL;
const char *xen_prefix = "xen,xen-";
struct resource res;
int i;
node = of_find_compatible_node(NULL, NULL, "xen,xen");
if (!node) {
@ -265,19 +261,23 @@ static int __init xen_guest_init(void)
sizeof(struct vcpu_info));
if (xen_vcpu_info == NULL)
return -ENOMEM;
for_each_online_cpu(i)
xen_secondary_init(i);
gnttab_init();
if (!xen_initial_domain())
xenbus_probe(NULL);
return 0;
}
core_initcall(xen_guest_init);
static int __init xen_pm_init(void)
{
pm_power_off = xen_power_off;
arm_pm_restart = xen_restart;
return 0;
}
core_initcall(xen_guest_init);
subsys_initcall(xen_pm_init);
static irqreturn_t xen_arm_callback(int irq, void *arg)
{
@ -285,11 +285,6 @@ static irqreturn_t xen_arm_callback(int irq, void *arg)
return IRQ_HANDLED;
}
static __init void xen_percpu_enable_events(void *unused)
{
enable_percpu_irq(xen_events_irq, 0);
}
static int __init xen_init_events(void)
{
if (!xen_domain() || xen_events_irq < 0)
@ -303,7 +298,7 @@ static int __init xen_init_events(void)
return -EINVAL;
}
on_each_cpu(xen_percpu_enable_events, NULL, 0);
on_each_cpu(xen_percpu_init, NULL, 0);
return 0;
}