Hi Suman,
----- On 30 Mar, 2020, at 21:11, s-anna s-anna@xxxxxx wrote:
> 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.
Indeed, this is probably not needed anymore, I will modify that.
>
> 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
