From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k0pnT-0007kz-LO for barebox@lists.infradead.org; Wed, 29 Jul 2020 17:23:20 +0000 References: <20200715092656.27253-1-christian.mauderer@embedded-brains.de> <09d1bc99-aaa0-0b5b-5e98-e0bfbde8fb7b@embedded-brains.de> From: Ahmad Fatoum Message-ID: Date: Wed, 29 Jul 2020 19:23:17 +0200 MIME-Version: 1.0 In-Reply-To: <09d1bc99-aaa0-0b5b-5e98-e0bfbde8fb7b@embedded-brains.de> Content-Language: en-US List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH v5] FIT: Parse `load` and `entry` addresses. To: Christian Mauderer , barebox@lists.infradead.org Hello Christian, On 7/28/20 3:57 PM, Christian Mauderer wrote: > Hello, > > are there any other changes to make that patch acceptable? Sascha is on vacation, but patches on the mailing list will be reviewed before the next release. Cheers Ahmad > > Best regards > > Christian Mauderer > > On 15/07/2020 11:26, Christian Mauderer wrote: >> According to the U-Boot documentation for the FIT file format, the load >> and entry have to be allways defined for a "kernel" or "standalone". >> But Barebox ignored the parameters. That changes with this patch. >> >> For backward compatibility the default address is still used for images >> without `load` or `entry`. >> >> Signed-off-by: Christian Mauderer >> --- >> common/blspec.c | 1 + >> common/boot.c | 1 + >> common/bootm.c | 24 ++++++++++- >> common/image-fit.c | 97 ++++++++++++++++++++++++++++++++++++++------- >> include/image-fit.h | 3 ++ >> 5 files changed, 110 insertions(+), 16 deletions(-) >> >> diff --git a/common/blspec.c b/common/blspec.c >> index 7fb62d310..050aed26a 100644 >> --- a/common/blspec.c >> +++ b/common/blspec.c >> @@ -142,6 +142,7 @@ static int blspec_boot(struct bootentry *be, int verbose, int dryrun) >> globalvar_set_match("bootm.initrd", ""); >> >> bootm_data_init_defaults(&data); >> + data.os_entry = 0; >> >> devicetree = blspec_entry_var_get(entry, "devicetree"); >> initrd = blspec_entry_var_get(entry, "initrd"); >> diff --git a/common/boot.c b/common/boot.c >> index dcbe5cc2e..93ac1612d 100644 >> --- a/common/boot.c >> +++ b/common/boot.c >> @@ -104,6 +104,7 @@ static int bootscript_boot(struct bootentry *entry, int verbose, int dryrun) >> >> bootm_data_init_defaults(&data); >> >> + data.os_entry = 0; >> if (verbose) >> data.verbose = verbose; >> if (dryrun) >> diff --git a/common/bootm.c b/common/bootm.c >> index 366f31455..8f8dbe6cb 100644 >> --- a/common/bootm.c >> +++ b/common/bootm.c >> @@ -58,6 +58,7 @@ void bootm_data_init_defaults(struct bootm_data *data) >> { >> data->initrd_address = UIMAGE_INVALID_ADDRESS; >> data->os_address = UIMAGE_SOME_ADDRESS; >> + data->os_entry = UIMAGE_SOME_ADDRESS; >> data->oftree_file = getenv_nonempty("global.bootm.oftree"); >> data->tee_file = getenv_nonempty("global.bootm.tee"); >> data->os_file = getenv_nonempty("global.bootm.image"); >> @@ -601,6 +602,7 @@ int bootm_boot(struct bootm_data *bootm_data) >> >> if (IS_ENABLED(CONFIG_FITIMAGE) && os_type == filetype_oftree) { >> struct fit_handle *fit; >> + static const char *kernel_img = "kernel"; >> >> fit = fit_open(data->os_file, data->verbose, data->verify); >> if (IS_ERR(fit)) { >> @@ -621,10 +623,28 @@ int bootm_boot(struct bootm_data *bootm_data) >> goto err_out; >> } >> >> - ret = fit_open_image(data->os_fit, data->fit_config, "kernel", >> + ret = fit_open_image(data->os_fit, data->fit_config, kernel_img, >> &data->fit_kernel, &data->fit_kernel_size); >> if (ret) >> goto err_out; >> + if (data->os_address == UIMAGE_SOME_ADDRESS) { >> + ret = fit_get_image_address(data->os_fit, >> + data->fit_config, >> + kernel_img, >> + "load", &data->os_address); >> + if (ret) >> + goto err_out; >> + } >> + if (data->os_entry == UIMAGE_SOME_ADDRESS) { >> + unsigned long entry; >> + ret = fit_get_image_address(data->os_fit, >> + data->fit_config, >> + kernel_img, >> + "entry", &entry); >> + if (!ret) >> + data->os_entry = entry - data->os_address; >> + /* Note: Error case used default value. */ >> + } >> } >> >> if (os_type == filetype_uimage) { >> @@ -672,6 +692,8 @@ int bootm_boot(struct bootm_data *bootm_data) >> >> if (data->os_address == UIMAGE_SOME_ADDRESS) >> data->os_address = UIMAGE_INVALID_ADDRESS; >> + if (data->os_entry == UIMAGE_SOME_ADDRESS) >> + data->os_entry = 0; >> >> handler = bootm_find_handler(os_type, data); >> if (!handler) { >> diff --git a/common/image-fit.c b/common/image-fit.c >> index 2681d62a9..61aa299b1 100644 >> --- a/common/image-fit.c >> +++ b/common/image-fit.c >> @@ -517,6 +517,83 @@ int fit_has_image(struct fit_handle *handle, void *configuration, >> return 1; >> } >> >> +static int fit_get_address(struct device_node *image, const char *property, >> + unsigned long *addr) >> +{ >> + const __be32 *cell; >> + int len = 0; >> + >> + cell = of_get_property(image, property, &len); >> + if (!cell) >> + return -EINVAL; >> + if (len > sizeof(*addr)) >> + return -ENOTSUPP; >> + >> + *addr = (unsigned long)of_read_number(cell, len / sizeof(*cell)); >> + return 0; >> +} >> + >> +static int >> +fit_get_image(struct fit_handle *handle, void *configuration, >> + const char **unit, struct device_node **image) >> +{ >> + struct device_node *conf_node = configuration; >> + >> + if (conf_node) { >> + if (of_property_read_string(conf_node, *unit, unit)) { >> + pr_err("No image named '%s'\n", *unit); >> + return -ENOENT; >> + } >> + } >> + >> + *image = of_get_child_by_name(handle->images, *unit); >> + if (!*image) >> + return -ENOENT; >> + >> + return 0; >> +} >> + >> +/** >> + * fit_get_image_address - Get an address from an image in a FIT image >> + * @handle: The FIT image handle >> + * @name: The name of the image to open >> + * @property: The name of the address to get (for example "load" or "entry") >> + * @address: The address given by the image >> + * >> + * Try to parse the @property in the image @name as an address. @configuration >> + * holds the cookie returned from fit_open_configuration() if the image is >> + * opened as part of a configuration, or NULL if the image is opened without a >> + * configuration. If it exists the value will be returned in @address. Otherwise >> + * @address won't be changed. >> + * >> + * Return: 0 for success, negative error code otherwise >> + */ >> +int fit_get_image_address(struct fit_handle *handle, void *configuration, >> + const char *name, const char *property, >> + unsigned long *address) >> +{ >> + struct device_node *image; >> + const char *unit = name; >> + int ret; >> + >> + if (!address || !property || !name) >> + return -EINVAL; >> + >> + ret = fit_get_image(handle, configuration, &unit, &image); >> + if (ret) >> + return ret; >> + >> + pr_info("%s/%s: ", image->full_name, property); >> + >> + ret = fit_get_address(image, property, address); >> + if (ret < 0) >> + pr_cont("\n"); >> + else >> + pr_cont("0x%lx\n", *address); >> + >> + return ret; >> +} >> + >> /** >> * fit_open_image - Open an image in a FIT image >> * @handle: The FIT image handle >> @@ -539,24 +616,14 @@ int fit_open_image(struct fit_handle *handle, void *configuration, >> unsigned long *outsize) >> { >> struct device_node *image; >> - const char *unit, *type = NULL, *desc= "(no description)"; >> + const char *unit = name, *type = NULL, *desc= "(no description)"; >> const void *data; >> int data_len; >> int ret = 0; >> - struct device_node *conf_node = configuration; >> >> - if (conf_node) { >> - if (of_property_read_string(conf_node, name, &unit)) { >> - pr_err("No image named '%s'\n", name); >> - return -ENOENT; >> - } >> - } else { >> - unit = name; >> - } >> - >> - image = of_get_child_by_name(handle->images, unit); >> - if (!image) >> - return -ENOENT; >> + ret = fit_get_image(handle, configuration, &unit, &image); >> + if (ret) >> + return ret; >> >> of_property_read_string(image, "description", &desc); >> pr_info("image '%s': '%s'\n", unit, desc); >> @@ -573,7 +640,7 @@ int fit_open_image(struct fit_handle *handle, void *configuration, >> return -EINVAL; >> } >> >> - if (conf_node) >> + if (configuration) >> ret = fit_verify_hash(handle, image, data, data_len); >> else >> ret = fit_image_verify_signature(handle, image, data, data_len); >> diff --git a/include/image-fit.h b/include/image-fit.h >> index 27c9e8351..f21545988 100644 >> --- a/include/image-fit.h >> +++ b/include/image-fit.h >> @@ -32,6 +32,9 @@ int fit_has_image(struct fit_handle *handle, void *configuration, >> int fit_open_image(struct fit_handle *handle, void *configuration, >> const char *name, const void **outdata, >> unsigned long *outsize); >> +int fit_get_image_address(struct fit_handle *handle, void *configuration, >> + const char *name, const char *property, >> + unsigned long *address); >> >> void fit_close(struct fit_handle *handle); >> >> > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox