On Sun, Dec 20, 2020 at 11:17:02AM +0100, Heinrich Schuchardt wrote: > Currently the size of the buffer to keep UEFI variables in memory is fixed > at 16384 bytes. This size has proven to be too small for some use cases. > > Make the size of the memory buffer for UEFI variables customizable. > > Reported-by: Paulo Alcantara (SUSE) <p...@cjr.nz> > Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de> > --- > include/efi_variable.h | 2 +- > lib/efi_loader/Kconfig | 8 ++++++++ > 2 files changed, 9 insertions(+), 1 deletion(-) > > diff --git a/include/efi_variable.h b/include/efi_variable.h > index 4704a3c16e..bf5076233e 100644 > --- a/include/efi_variable.h > +++ b/include/efi_variable.h > @@ -91,7 +91,7 @@ efi_status_t efi_query_variable_info_int(u32 attributes, > > #define EFI_VAR_FILE_NAME "ubootefi.var" > > -#define EFI_VAR_BUF_SIZE 0x4000 > +#define EFI_VAR_BUF_SIZE CONFIG_EFI_VAR_BUF_SIZE > > /* > * This constant identifies the file format for storing UEFI variables in > diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig > index 7fd3a3c90c..deb86a335a 100644 > --- a/lib/efi_loader/Kconfig > +++ b/lib/efi_loader/Kconfig > @@ -77,6 +77,14 @@ config EFI_VAR_SEED_FILE > > endif > > +config EFI_VAR_BUF_SIZE > + int "Memory size of the UEFI variable store" > + default 16384 > + range 4096 2147483647 > + help > + This defines the memory area reserved for keeping UEFI variables. > + Minimum value 4096. > + > config EFI_GET_TIME > bool "GetTime() runtime service" > depends on DM_RTC > -- > 2.29.2 > That being said the RPMB variant also uses 0x4000, but that's not configurable by U-Boot. It's a compilation option for StandAloneMM
Acked-by: Ilias Apalodimas <ilias.apalodi...@linaro.org>