From: Sean Christopherson <seanjc@xxxxxxxxxx>
Provide the name of the calling function to hardware_enable_nolock() and
include it in the error message to provide additional information on
exactly what path failed.
Opportunistically bump the pr_info() to pr_warn(), failure to enable
virtualization support is warn-worthy as _something_ is wrong with the
system.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
Signed-off-by: Chao Gao <chao.gao@xxxxxxxxx>
---
virt/kvm/kvm_main.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index be614a6325e4..23481fd746aa 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -4833,7 +4833,7 @@ static struct miscdevice kvm_dev = {
&kvm_chardev_ops,
};
-static void hardware_enable_nolock(void *junk)
+static void hardware_enable_nolock(void *caller_name)
{
int cpu = raw_smp_processor_id();
int r;
@@ -4848,7 +4848,8 @@ static void hardware_enable_nolock(void *junk)
if (r) {
cpumask_clear_cpu(cpu, cpus_hardware_enabled);
atomic_inc(&hardware_enable_failed);
- pr_info("kvm: enabling virtualization on CPU%d failed\n", cpu);
+ pr_warn("kvm: enabling virtualization on CPU%d failed during %s()\n",
+ cpu, (const char *)caller_name);
}
}
@@ -4856,7 +4857,7 @@ static int kvm_starting_cpu(unsigned int cpu)
{
raw_spin_lock(&kvm_count_lock);
if (kvm_usage_count)
- hardware_enable_nolock(NULL);
+ hardware_enable_nolock((void *)__func__);
raw_spin_unlock(&kvm_count_lock);
return 0;
}
@@ -4905,7 +4906,7 @@ static int hardware_enable_all(void)
kvm_usage_count++;
if (kvm_usage_count == 1) {
atomic_set(&hardware_enable_failed, 0);
- on_each_cpu(hardware_enable_nolock, NULL, 1);
+ on_each_cpu(hardware_enable_nolock, (void *)__func__, 1);
if (atomic_read(&hardware_enable_failed)) {
hardware_disable_all_nolock();
@@ -5530,7 +5531,7 @@ static void kvm_resume(void)
#ifdef CONFIG_LOCKDEP
WARN_ON(lockdep_is_held(&kvm_count_lock));
#endif
- hardware_enable_nolock(NULL);
+ hardware_enable_nolock((void *)__func__);
}
}
--
2.25.1
