Hi Clement,
On 3/27/20 11:17 AM, Mathieu Poirier wrote:
> On Fri, Mar 27, 2020 at 09:49:39AM +0100, Clement Leger wrote:
>> Since checks are present in the remoteproc elf loader before calling
>> da_to_va, loading a elf64 will work on 32bits flavors of kernel.
>> Indeed, if a segment size is larger than what size_t can hold, the
>> loader will return an error so the functionality is equivalent to
>> what exists today.
>>
>> Signed-off-by: Clement Leger <cleger@xxxxxxxxx>
>> ---
>> drivers/remoteproc/remoteproc_core.c | 2 +-
>> drivers/remoteproc/remoteproc_elf_loader.c | 21 ---------------------
>> drivers/remoteproc/remoteproc_internal.h | 1 -
>> drivers/remoteproc/st_remoteproc.c | 2 +-
>> drivers/remoteproc/st_slim_rproc.c | 2 +-
>> drivers/remoteproc/stm32_rproc.c | 2 +-
>> 6 files changed, 4 insertions(+), 26 deletions(-)
>
> Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
>
>>
>> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
>> index a9ac1d01e09b..02ff076b0122 100644
>> --- a/drivers/remoteproc/remoteproc_core.c
>> +++ b/drivers/remoteproc/remoteproc_core.c
>> @@ -2069,7 +2069,7 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
>> rproc->ops->parse_fw = rproc_elf_load_rsc_table;
>> rproc->ops->find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table;
>> if (!rproc->ops->sanity_check)
>> - rproc->ops->sanity_check = rproc_elf32_sanity_check;
>> + rproc->ops->sanity_check = rproc_elf_sanity_check;
Do you still need the capability to override the sanity_check? As I
understand, you introduced this to allow platform drivers to use the
appropriate elf32 or elf64 one during the ELF64 loader support series.
regards
Suman
>> rproc->ops->get_boot_addr = rproc_elf_get_boot_addr;
>> }
>>
>> diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c
>> index 16e2c496fd45..29034f99898d 100644
>> --- a/drivers/remoteproc/remoteproc_elf_loader.c
>> +++ b/drivers/remoteproc/remoteproc_elf_loader.c
>> @@ -112,27 +112,6 @@ int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
>> }
>> EXPORT_SYMBOL(rproc_elf_sanity_check);
>>
>> -/**
>> - * rproc_elf_sanity_check() - Sanity Check ELF32 firmware image
>> - * @rproc: the remote processor handle
>> - * @fw: the ELF32 firmware image
>> - *
>> - * Make sure this fw image is sane.
>> - */
>> -int rproc_elf32_sanity_check(struct rproc *rproc, const struct firmware *fw)
>> -{
>> - int ret = rproc_elf_sanity_check(rproc, fw);
>> -
>> - if (ret)
>> - return ret;
>> -
>> - if (fw_elf_get_class(fw) == ELFCLASS32)
>> - return 0;
>> -
>> - return -EINVAL;
>> -}
>> -EXPORT_SYMBOL(rproc_elf32_sanity_check);
>> -
>> /**
>> * rproc_elf_get_boot_addr() - Get rproc's boot address.
>> * @rproc: the remote processor handle
>> diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
>> index b389dc79da81..31994715fd43 100644
>> --- a/drivers/remoteproc/remoteproc_internal.h
>> +++ b/drivers/remoteproc/remoteproc_internal.h
>> @@ -54,7 +54,6 @@ void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len);
>> phys_addr_t rproc_va_to_pa(void *cpu_addr);
>> int rproc_trigger_recovery(struct rproc *rproc);
>>
>> -int rproc_elf32_sanity_check(struct rproc *rproc, const struct firmware *fw);
>> int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
>> u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
>> int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
>> diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c
>> index a6cbfa452764..a3268d95a50e 100644
>> --- a/drivers/remoteproc/st_remoteproc.c
>> +++ b/drivers/remoteproc/st_remoteproc.c
>> @@ -233,7 +233,7 @@ static const struct rproc_ops st_rproc_ops = {
>> .parse_fw = st_rproc_parse_fw,
>> .load = rproc_elf_load_segments,
>> .find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
>> - .sanity_check = rproc_elf32_sanity_check,
>> + .sanity_check = rproc_elf_sanity_check,
>> .get_boot_addr = rproc_elf_get_boot_addr,
>> };
>>
>> diff --git a/drivers/remoteproc/st_slim_rproc.c b/drivers/remoteproc/st_slim_rproc.c
>> index 3cca8b65a8db..09bcb4d8b9e0 100644
>> --- a/drivers/remoteproc/st_slim_rproc.c
>> +++ b/drivers/remoteproc/st_slim_rproc.c
>> @@ -203,7 +203,7 @@ static const struct rproc_ops slim_rproc_ops = {
>> .da_to_va = slim_rproc_da_to_va,
>> .get_boot_addr = rproc_elf_get_boot_addr,
>> .load = rproc_elf_load_segments,
>> - .sanity_check = rproc_elf32_sanity_check,
>> + .sanity_check = rproc_elf_sanity_check,
>> };
>>
>> /**
>> diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
>> index 6a66dbf2df40..2e07a95439c8 100644
>> --- a/drivers/remoteproc/stm32_rproc.c
>> +++ b/drivers/remoteproc/stm32_rproc.c
>> @@ -505,7 +505,7 @@ static struct rproc_ops st_rproc_ops = {
>> .load = rproc_elf_load_segments,
>> .parse_fw = stm32_rproc_parse_fw,
>> .find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
>> - .sanity_check = rproc_elf32_sanity_check,
>> + .sanity_check = rproc_elf_sanity_check,
>> .get_boot_addr = rproc_elf_get_boot_addr,
>> };
>>
>> --
>> 2.17.1
>>
