Re: [PATCH v2] Arm32: MSR to SPSR needs qualification

2021-06-11 Thread Stefano Stabellini
On Fri, 11 Jun 2021, Jan Beulich wrote: > The Arm ARM's description of MSR (ARM DDI 0406C.d section B9.3.12) > doesn't even allow for plain "SPSR" here, and while gas accepts this, it > takes it to mean SPSR_cf. Yet surely all of SPSR wants updating on this > path, not just the lowest and highest 8

[PATCH v2] Arm32: MSR to SPSR needs qualification

2021-06-11 Thread Jan Beulich
The Arm ARM's description of MSR (ARM DDI 0406C.d section B9.3.12) doesn't even allow for plain "SPSR" here, and while gas accepts this, it takes it to mean SPSR_cf. Yet surely all of SPSR wants updating on this path, not just the lowest and highest 8 bits. Fixes: dfcffb128be4 ("xen/arm32: SPSR_hy