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[Xen-devel,for-4.7,v2,5/5] xen/arm: acpi: Print more error messages in acpi_map_gic_cpu_interface

Message ID 1460381617-5786-6-git-send-email-julien.grall@arm.com
State New
Headers show

Commit Message

Julien Grall April 11, 2016, 1:33 p.m. UTC 
It's helpful to spot any error without having to modify the hypervisor
code.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>

---
    Changes in v2:
        - Add Stefano's and Shannon's reviewed-by
---
 xen/arch/arm/acpi/boot.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/xen/arch/arm/acpi/boot.c b/xen/arch/arm/acpi/boot.c
index f3d8e7c..28b3450 100644
--- a/xen/arch/arm/acpi/boot.c
+++ b/xen/arch/arm/acpi/boot.c
@@ -63,7 +63,10 @@  acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor)
 
     total_cpus++;
     if ( !enabled )
+    {
+        printk("Skipping disabled CPU entry with 0x%"PRIx64" MPIDR\n", mpidr);
         return;
+    }
 
     if ( enabled_cpus >=  NR_CPUS )
     {
@@ -101,7 +104,11 @@  acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor)
     }
 
     if ( !acpi_psci_present() )
+    {
+        printk("PSCI not present, skipping CPU MPIDR 0x%"PRIx64"\n",
+               mpidr);
         return;
+    }
 
     if ( (rc = arch_cpu_init(enabled_cpus, NULL)) < 0 )
     {