Re: [PATCH v2 3/3] kselftest/arm64: Add FPMR coverage to fp-ptrace

On Tue, Nov 12, 2024 at 01:08:16PM +0000, Mark Brown wrote:

• // This has to come after we set PSTATE.SM

+check_fpmr_in:

• tbz x0, #HAVE_FPMR_SHIFT, wait_for_writes
• adrp x7, fpmr_in
• ldr x7, [x7, :lo12:fpmr_in]
• msr FPMR, x7

Did this build for you? I may not have a new enough assembler.

fp-ptrace-asm.S:149:6: error: expected writable system register or pstate msr FPMR, x7

I changed it to REG_FPMR locally.