[v3] ARM virt: ACPI memory hotplug support

[Qemu-devel] [PATCH v3 02/10] hw/acpi: Do not create memory hotplug method when handler is not defined

Posted by Shameer Kolothum 6 years, 10 months ago

From: Samuel Ortiz <sameo@linux.intel.com>

With Hardware-reduced ACPI, the GED device will manage ACPI
hotplug entirely. As a consequence, make the memory specific
events AML generation optional. The code will only be added
when the method name is not NULL.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
---
 hw/acpi/memory_hotplug.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
index 80e25f0..98407e3 100644
--- a/hw/acpi/memory_hotplug.c
+++ b/hw/acpi/memory_hotplug.c
@@ -720,10 +720,12 @@ void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
     }
     aml_append(table, dev_container);
 
-    method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED);
-    aml_append(method,
-        aml_call0(MEMORY_DEVICES_CONTAINER "." MEMORY_SLOT_SCAN_METHOD));
-    aml_append(table, method);
+    if (event_handler_method) {
+        method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED);
+        aml_append(method,
+                   aml_call0(MEMORY_DEVICES_CONTAINER "." MEMORY_SLOT_SCAN_METHOD));
+        aml_append(table, method);
+    }
 
     g_free(mhp_res_path);
 }
-- 
2.7.4

Re: [Qemu-devel] [PATCH v3 02/10] hw/acpi: Do not create memory hotplug method when handler is not defined

Posted by Auger Eric 6 years, 10 months ago

Hi Shameer,
On 3/21/19 11:47 AM, Shameer Kolothum wrote:
> From: Samuel Ortiz <sameo@linux.intel.com>
> 
> With Hardware-reduced ACPI, the GED device will manage ACPI
s/Hardware-reduced/hardware-reduced
> hotplug entirely. As a consequence, make the memory specific
> events AML generation optional The code will only be added
> when the method name is not NULL.
> 
> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
> Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>

Thanks

Eric
> ---
>  hw/acpi/memory_hotplug.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
> index 80e25f0..98407e3 100644
> --- a/hw/acpi/memory_hotplug.c
> +++ b/hw/acpi/memory_hotplug.c
> @@ -720,10 +720,12 @@ void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
>      }
>      aml_append(table, dev_container);
>  
> -    method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED);
> -    aml_append(method,
> -        aml_call0(MEMORY_DEVICES_CONTAINER "." MEMORY_SLOT_SCAN_METHOD));
> -    aml_append(table, method);
> +    if (event_handler_method) {
> +        method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED);
> +        aml_append(method,
> +                   aml_call0(MEMORY_DEVICES_CONTAINER "." MEMORY_SLOT_SCAN_METHOD));
> +        aml_append(table, method);
> +    }
>  
>      g_free(mhp_res_path);
>  }
>