diff mbox

[U-Boot,08/23] efi_loader: allow creating new handles

Message ID 20170826225110.7381-9-xypron.glpk@gmx.de
State Accepted, archived
Delegated to: Alexander Graf
Headers show

Commit Message

Heinrich Schuchardt Aug. 26, 2017, 10:51 p.m. UTC
In efi_install_protocol_interface support creating
a new handle.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
 lib/efi_loader/efi_boottime.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

Comments

Simon Glass Aug. 31, 2017, 12:51 p.m. UTC | #1
On 27 August 2017 at 06:51, Heinrich Schuchardt <xypron.glpk@gmx.de> wrote:
> In efi_install_protocol_interface support creating
> a new handle.
>
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> ---
>  lib/efi_loader/efi_boottime.c | 22 ++++++++++++++++++++--
>  1 file changed, 20 insertions(+), 2 deletions(-)
>
Reviewed-by: Simon Glass <sjg@chromium.org>

The use of void ** seems odd. Is that mandated by EFI? Is there no way
to use a proper type?

> diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
> index 96cb1fa410..9f8d64659f 100644
> --- a/lib/efi_loader/efi_boottime.c
> +++ b/lib/efi_loader/efi_boottime.c
> @@ -238,6 +238,23 @@ static efi_status_t EFIAPI efi_free_pool_ext(void *buffer)
>         return EFI_EXIT(r);
>  }
>
> +static efi_status_t efi_create_handle(void **handle)
> +{
> +       struct efi_object *obj;
> +       efi_status_t r;
> +
> +       r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
> +                             sizeof(struct efi_object),
> +                             (void **)&obj);
> +       if (r != EFI_SUCCESS)
> +               return r;
> +       memset(obj, 0, sizeof(struct efi_object));
> +       obj->handle = obj;
> +       list_add_tail(&obj->link, &efi_obj_list);
> +       *handle = obj;
> +       return r;
> +}
> +
>  /*
>   * Our event capabilities are very limited. Only a small limited
>   * number of events is allowed to coexist.
> @@ -497,8 +514,9 @@ static efi_status_t EFIAPI efi_install_protocol_interface(void **handle,
>
>         /* Create new handle if requested. */
>         if (!*handle) {
> -               r = EFI_OUT_OF_RESOURCES;
> -               goto out;
> +               r = efi_create_handle(handle);
> +               if (r != EFI_SUCCESS)
> +                       goto out;
>         }
>
>         /* Find object. */
> --
> 2.14.1
>
Rob Clark Sept. 7, 2017, 7:20 p.m. UTC | #2
On Thu, Aug 31, 2017 at 8:51 AM, Simon Glass <sjg@chromium.org> wrote:
> On 27 August 2017 at 06:51, Heinrich Schuchardt <xypron.glpk@gmx.de> wrote:
>> In efi_install_protocol_interface support creating
>> a new handle.
>>
>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>> ---
>>  lib/efi_loader/efi_boottime.c | 22 ++++++++++++++++++++--
>>  1 file changed, 20 insertions(+), 2 deletions(-)
>>
> Reviewed-by: Simon Glass <sjg@chromium.org>
>
> The use of void ** seems odd. Is that mandated by EFI? Is there no way
> to use a proper type?

There is in fact an efi_handle_t, which we should probably start using..

Anyways, turns out SCT needed this patch, so Heinrich, you can add my:

Tested-by: Rob Clark <robdclark@gmail.com>


>> diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
>> index 96cb1fa410..9f8d64659f 100644
>> --- a/lib/efi_loader/efi_boottime.c
>> +++ b/lib/efi_loader/efi_boottime.c
>> @@ -238,6 +238,23 @@ static efi_status_t EFIAPI efi_free_pool_ext(void *buffer)
>>         return EFI_EXIT(r);
>>  }
>>
>> +static efi_status_t efi_create_handle(void **handle)
>> +{
>> +       struct efi_object *obj;
>> +       efi_status_t r;
>> +
>> +       r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
>> +                             sizeof(struct efi_object),
>> +                             (void **)&obj);
>> +       if (r != EFI_SUCCESS)
>> +               return r;
>> +       memset(obj, 0, sizeof(struct efi_object));
>> +       obj->handle = obj;
>> +       list_add_tail(&obj->link, &efi_obj_list);
>> +       *handle = obj;
>> +       return r;
>> +}
>> +
>>  /*
>>   * Our event capabilities are very limited. Only a small limited
>>   * number of events is allowed to coexist.
>> @@ -497,8 +514,9 @@ static efi_status_t EFIAPI efi_install_protocol_interface(void **handle,
>>
>>         /* Create new handle if requested. */
>>         if (!*handle) {
>> -               r = EFI_OUT_OF_RESOURCES;
>> -               goto out;
>> +               r = efi_create_handle(handle);
>> +               if (r != EFI_SUCCESS)
>> +                       goto out;
>>         }
>>
>>         /* Find object. */
>> --
>> 2.14.1
>>
diff mbox

Patch

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 96cb1fa410..9f8d64659f 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -238,6 +238,23 @@  static efi_status_t EFIAPI efi_free_pool_ext(void *buffer)
 	return EFI_EXIT(r);
 }
 
+static efi_status_t efi_create_handle(void **handle)
+{
+	struct efi_object *obj;
+	efi_status_t r;
+
+	r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
+			      sizeof(struct efi_object),
+			      (void **)&obj);
+	if (r != EFI_SUCCESS)
+		return r;
+	memset(obj, 0, sizeof(struct efi_object));
+	obj->handle = obj;
+	list_add_tail(&obj->link, &efi_obj_list);
+	*handle = obj;
+	return r;
+}
+
 /*
  * Our event capabilities are very limited. Only a small limited
  * number of events is allowed to coexist.
@@ -497,8 +514,9 @@  static efi_status_t EFIAPI efi_install_protocol_interface(void **handle,
 
 	/* Create new handle if requested. */
 	if (!*handle) {
-		r = EFI_OUT_OF_RESOURCES;
-		goto out;
+		r = efi_create_handle(handle);
+		if (r != EFI_SUCCESS)
+			goto out;
 	}
 
 	/* Find object. */