Re: [RFC PATCH v2 5/8] EFI: FMP: Add provision to update image's ImageTypeId in image descriptor
hi Takahiro, On Tue, 21 Dec 2021 at 10:23, AKASHI Takahiro wrote: > Sughosh, > > On Sun, Dec 19, 2021 at 12:36:02PM +0530, Sughosh Ganu wrote: > > The FWU Multi Banks Update feature allows updating different types of > > updatable firmware images on the platform. These image types are > > identified using the ImageTypeId GUID value. Add support in the > > GetImageInfo function of the FMP protocol to get the GUID values for > > the individual images and populate these in the image descriptor for > > the corresponding images. > > > > Signed-off-by: Sughosh Ganu > > --- > > Changes since V1: > > * Define a new function fwu_plat_get_alt_num for filling up > > all the dfu partitions with a preset ImageTypeId guid > > * Remove the distinction made in the earlier version for > > setting image_type_id as suggested by Heinrich > > > > lib/efi_loader/efi_firmware.c | 90 --- > > 1 file changed, 83 insertions(+), 7 deletions(-) > > > > diff --git a/lib/efi_loader/efi_firmware.c > b/lib/efi_loader/efi_firmware.c > > index a1b88dbfc2..648342ae72 100644 > > --- a/lib/efi_loader/efi_firmware.c > > +++ b/lib/efi_loader/efi_firmware.c > > @@ -10,6 +10,7 @@ > > #include > > #include > > #include > > +#include > > #include > > #include > > > > @@ -96,6 +97,46 @@ efi_status_t EFIAPI > efi_firmware_set_package_info_unsupported( > > return EFI_EXIT(EFI_UNSUPPORTED); > > } > > > > +static efi_status_t fill_part_guid_array(const efi_guid_t *guid, > > + efi_guid_t **part_guid_arr) > > +{ > > + int i; > > + int dfu_num = 0; > > + efi_guid_t *guid_arr; > > + struct dfu_entity *dfu; > > + efi_status_t ret = EFI_SUCCESS; > > + > > + dfu_init_env_entities(NULL, NULL); > > + > > + dfu_num = 0; > > + list_for_each_entry(dfu, _list, list) { > > + dfu_num++; > > + } > > + > > + if (!dfu_num) { > > + log_warning("Probably dfu_alt_info not defined\n"); > > + ret = EFI_NOT_READY; > > + goto out; > > + } > > + > > + *part_guid_arr = malloc(sizeof(efi_guid_t) * dfu_num); > > + if (!*part_guid_arr) { > > + ret = EFI_OUT_OF_RESOURCES; > > + goto out; > > + } > > + > > + guid_arr = *part_guid_arr; > > + for (i = 0; i < dfu_num; i++) { > > + guidcpy(guid_arr, guid); > > + ++guid_arr; > > + } > > + > > +out: > > + dfu_free_entities(); > > + > > + return ret; > > +} > > + > > /** > > * efi_get_dfu_info - return information about the current firmware > image > > * @this:Protocol instance > > @@ -104,9 +145,9 @@ efi_status_t EFIAPI > efi_firmware_set_package_info_unsupported( > > * @descriptor_version: Pointer to version number > > * @descriptor_count:Pointer to number of descriptors > > * @descriptor_size: Pointer to descriptor size > > - * package_version: Package version > > - * package_version_name: Package version's name > > - * image_type: Image type GUID > > + * @package_version: Package version > > + * @package_version_name:Package version's name > > + * @guid_array: Image type GUID array > > If I understand your code correctly, a guid in descriptor for any image > (I mean any part defined by dfu_alto_info) will have the same value > even with this change. > If so, why do we have to take an array of GUIDs as a parameter? > One of Heinrich's comments in my previous version was not to distinguish between the FWU case and the normal case when setting the image_type_id. The existing code sets the same GUID value(image_type) for all images. I have kept this consistent. With the FWU feature enabled, fwu_plat_fill_partition_guids is called and this function fills in the array with the relevant values of partition GUIDs. fwu_plat_fill_partition_guids has been defined for the ST board in patch 3/8. > On your previous version, Heinrich made a comment like: > > ! The sequence of GUIDs in a capsule should not influence the update. The > ! design lacks a configuration defining which GUID maps to which DFU part. > ! > ! Please, get rid of all DFU environment variables and describe the update > ! in a configuration file that you add to the capsule. > > Have you addressed this issue in this series? > (To do that, we may have to introduce a new format of capsule file.) > No, Ilias and I had replied back that detaching capsule update from DFU is a separate effort, not related to the addition of the FWU functionality and should be taken up as a separate activity. -sughosh > > -Takahiro Akashi > > > > > * > > * Return information bout the current firmware image in @image_info. > > * @image_info will consist of a number of descriptors. > > @@ -122,7 +163,7 @@ static efi_status_t efi_get_dfu_info( > > efi_uintn_t *descriptor_size, > > u32
Re: [RFC PATCH v2 5/8] EFI: FMP: Add provision to update image's ImageTypeId in image descriptor
Sughosh, On Sun, Dec 19, 2021 at 12:36:02PM +0530, Sughosh Ganu wrote: > The FWU Multi Banks Update feature allows updating different types of > updatable firmware images on the platform. These image types are > identified using the ImageTypeId GUID value. Add support in the > GetImageInfo function of the FMP protocol to get the GUID values for > the individual images and populate these in the image descriptor for > the corresponding images. > > Signed-off-by: Sughosh Ganu > --- > Changes since V1: > * Define a new function fwu_plat_get_alt_num for filling up > all the dfu partitions with a preset ImageTypeId guid > * Remove the distinction made in the earlier version for > setting image_type_id as suggested by Heinrich > > lib/efi_loader/efi_firmware.c | 90 --- > 1 file changed, 83 insertions(+), 7 deletions(-) > > diff --git a/lib/efi_loader/efi_firmware.c b/lib/efi_loader/efi_firmware.c > index a1b88dbfc2..648342ae72 100644 > --- a/lib/efi_loader/efi_firmware.c > +++ b/lib/efi_loader/efi_firmware.c > @@ -10,6 +10,7 @@ > #include > #include > #include > +#include > #include > #include > > @@ -96,6 +97,46 @@ efi_status_t EFIAPI > efi_firmware_set_package_info_unsupported( > return EFI_EXIT(EFI_UNSUPPORTED); > } > > +static efi_status_t fill_part_guid_array(const efi_guid_t *guid, > + efi_guid_t **part_guid_arr) > +{ > + int i; > + int dfu_num = 0; > + efi_guid_t *guid_arr; > + struct dfu_entity *dfu; > + efi_status_t ret = EFI_SUCCESS; > + > + dfu_init_env_entities(NULL, NULL); > + > + dfu_num = 0; > + list_for_each_entry(dfu, _list, list) { > + dfu_num++; > + } > + > + if (!dfu_num) { > + log_warning("Probably dfu_alt_info not defined\n"); > + ret = EFI_NOT_READY; > + goto out; > + } > + > + *part_guid_arr = malloc(sizeof(efi_guid_t) * dfu_num); > + if (!*part_guid_arr) { > + ret = EFI_OUT_OF_RESOURCES; > + goto out; > + } > + > + guid_arr = *part_guid_arr; > + for (i = 0; i < dfu_num; i++) { > + guidcpy(guid_arr, guid); > + ++guid_arr; > + } > + > +out: > + dfu_free_entities(); > + > + return ret; > +} > + > /** > * efi_get_dfu_info - return information about the current firmware image > * @this:Protocol instance > @@ -104,9 +145,9 @@ efi_status_t EFIAPI > efi_firmware_set_package_info_unsupported( > * @descriptor_version: Pointer to version number > * @descriptor_count:Pointer to number of descriptors > * @descriptor_size: Pointer to descriptor size > - * package_version: Package version > - * package_version_name: Package version's name > - * image_type: Image type GUID > + * @package_version: Package version > + * @package_version_name:Package version's name > + * @guid_array: Image type GUID array If I understand your code correctly, a guid in descriptor for any image (I mean any part defined by dfu_alto_info) will have the same value even with this change. If so, why do we have to take an array of GUIDs as a parameter? On your previous version, Heinrich made a comment like: ! The sequence of GUIDs in a capsule should not influence the update. The ! design lacks a configuration defining which GUID maps to which DFU part. ! ! Please, get rid of all DFU environment variables and describe the update ! in a configuration file that you add to the capsule. Have you addressed this issue in this series? (To do that, we may have to introduce a new format of capsule file.) -Takahiro Akashi > * > * Return information bout the current firmware image in @image_info. > * @image_info will consist of a number of descriptors. > @@ -122,7 +163,7 @@ static efi_status_t efi_get_dfu_info( > efi_uintn_t *descriptor_size, > u32 *package_version, > u16 **package_version_name, > - const efi_guid_t *image_type) > + const efi_guid_t *guid_array) > { > struct dfu_entity *dfu; > size_t names_len, total_size; > @@ -172,7 +213,7 @@ static efi_status_t efi_get_dfu_info( > next = name; > list_for_each_entry(dfu, _list, list) { > image_info[i].image_index = dfu->alt + 1; > - image_info[i].image_type_id = *image_type; > + image_info[i].image_type_id = guid_array[i]; > image_info[i].image_id = dfu->alt; > > /* copy the DFU entity name */ > @@ -250,6 +291,7 @@ efi_status_t EFIAPI efi_firmware_fit_get_image_info( > u16 **package_version_name) > { > efi_status_t ret; > + efi_guid_t *part_guid_arr = NULL; > > EFI_ENTRY("%p %p %p %p %p %p %p %p\n", this, > image_info_size, image_info, > @@ -264,12 +306,19 @@ efi_status_t EFIAPI efi_firmware_fit_get_image_info( >