On Wed, Oct 26, 2022 at 09:51:20AM -0700, Florian Fainelli wrote: > > > On 10/26/2022 9:49 AM, Greg Kroah-Hartman wrote: > > On Thu, Oct 20, 2022 at 04:01:07PM -0700, Florian Fainelli wrote: > > > From: James Morse <james.morse@xxxxxxx> > > > > > > commit 44b3834b2eed595af07021b1c64e6f9bc396398b upstream > > > > > > Cortex-A57 and Cortex-A72 have an erratum where an interrupt that > > > occurs between a pair of AES instructions in aarch32 mode may corrupt > > > the ELR. The task will subsequently produce the wrong AES result. > > > > > > The AES instructions are part of the cryptographic extensions, which are > > > optional. User-space software will detect the support for these > > > instructions from the hwcaps. If the platform doesn't support these > > > instructions a software implementation should be used. > > > > > > Remove the hwcap bits on affected parts to indicate user-space should > > > not use the AES instructions. > > > > > > Acked-by: Ard Biesheuvel <ardb@xxxxxxxxxx> > > > Signed-off-by: James Morse <james.morse@xxxxxxx> > > > Link: https://lore.kernel.org/r/20220714161523.279570-3-james.morse@xxxxxxx > > > Signed-off-by: Will Deacon <will@xxxxxxxxxx> > > > [florian: resolved conflicts in arch/arm64/tools/cpucaps and cpu_errata.c] > > > Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx> > > > Change-Id: I651a0db2e9d2f304d210ae979ae586e7dcc9744d > > > > No need for Change-Id: in upstream patches :) > > Meh, the perils of working with Gerrit in the same tree.. do you need me to > resubmit or can you strip those when you apply the patches? I stripped them all, no worries.
