Hi Andre,
On 2020-09-01 10:49, Andre Przywara wrote:
From: James Morse <james.morse@xxxxxxx>
commit e9ee186bb735bfc17fa81dbc9aebf268aee5b41e upstream.
KVM has a one instruction window where it will allow an SError
exception
to be consumed by the hypervisor without treating it as a hypervisor
bug.
This is used to consume asynchronous external abort that were caused by
the guest.
As we are about to add another location that survives unexpected
exceptions,
generalise this code to make it behave like the host's extable.
KVM's version has to be mapped to EL2 to be accessible on nVHE systems.
The SError vaxorcism code is a one instruction window, so has two
entries
in the extable. Because the KVM code is copied for VHE and nVHE, we end
up
with four entries, half of which correspond with code that isn't
mapped.
Cc: <stable@xxxxxxxxxxxxxxx> # 5.4.x
Cc: Marc Zyngier <maz@xxxxxxxxxx>
Signed-off-by: James Morse <james.morse@xxxxxxx>
Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
Can you make sure these patches do carry the sign-off chain as we have
in mainline? In particular, this is missing:
Reviewed-by: Marc Zyngier <maz@xxxxxxxxxx>
Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
You can add your own SoB after this.
Thanks,
M.
--
Jazz is not dead. It just smells funny...
