On Tue, 2015-02-17 at 15:28 +, Julien Grall wrote:
> Hi Ian,
>
> On 10/02/15 04:45, Ian Campbell wrote:
> > case HSR_EC_SMC64:
> > +BUG_ON(psr_mode_is_32bit(regs->cpsr));
> > perfc_incr(trap_smc64);
> > -inject_undef64_exception(regs, hsr.len);
>
> I don't unders
Hi Ian,
On 10/02/15 04:45, Ian Campbell wrote:
> case HSR_EC_SMC64:
> +BUG_ON(psr_mode_is_32bit(regs->cpsr));
> perfc_incr(trap_smc64);
> -inject_undef64_exception(regs, hsr.len);
I don't understand why you drop the #undef injection. Is it a mistake?
Regards,
--
J
CP14 dbg and general CP register access are both handled with
unconditional injection of #undef from their respective handlers, so
allow these even from 32-bit userspace on a 64-bit kernel.
SMC32 and HVC32 should only come from a guest in AArch32 mode and
SMC64 and HVC64 should only come from a gu
