Re: [PATCH for 4.21 v7 3/4] xen/riscv: make zbb as mandatory

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

On 2/26/25 1:58 PM, Jan Beulich wrote:

> On 20.02.2025 18:44, Oleksii Kurochko wrote:
> > According to riscv/booting.txt, it is expected that Zbb should be supported.
> >
> > Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
> > ---
> > Changes in v7:
> >  - new patch.
> > ---
> >  xen/arch/riscv/arch.mk | 7 ++-----
> >  1 file changed, 2 insertions(+), 5 deletions(-)
> >       
> Please can you also tidy asm/cmpxchg.h of ANDN_INSN() then?
>     
Sure, I can leave only:
/*
 * To not face an issue that gas doesn't understand ANDN instruction
 * it is encoded using .insn directive.
 */
#define ANDN_INSN(rd, rs1, rs2)                 \
    ".insn r OP, 0x7, 0x20, " rd ", " rs1 ", " rs2 "\n"

~ Oleksii