On Wed, 02 Jul, at 12:10:02PM, Ard Biesheuvel wrote: > According to section 7.1 of the UEFI spec, Runtime Services are not fully > reentrant, and there are particular combinations of calls that need to be > serialized. > > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> > --- > drivers/firmware/efi/runtime-wrappers.c | 109 +++++++++++++++++++++++++++++--- > 1 file changed, 99 insertions(+), 10 deletions(-) Ard, what's going on with this one? I didn't see it resubmitted along with v3 of "efi/arm64: handle missing virtual mapping for UEFI System Table". Note that we already have a lock to serialize access to the UEFI variable services in the form of __efivars->lock, see drivers/firmware/efi/vars.c. It's a spinlock because of the context we may need to create variables in from efi_pstore_write(). -- Matt Fleming, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
