Re: [Minios-devel] [PATCH 21/40] arm64: implement the arm_start_thread

[Huang Shijie <shijie.huang@xxxxxxx>]

On Mon, Nov 06, 2017 at 02:29:41PM +0000, Julien Grall wrote:
> 
> 
> On 03/11/17 03:11, Huang Shijie wrote:
> > This patch implements the arm_start_thread which is called
> > when a thread is executed at the first time.
> > 
> > Change-Id: I18dac6cbdc9771248bc27ee437313dd8dfb04765
> > Jira: ENTOS-247
> > Signed-off-by: Huang Shijie <shijie.huang@xxxxxxx>
> > ---
> >   arch/arm/arm64/arm64.S | 12 ++++++++++++
> >   1 file changed, 12 insertions(+)
> > 
> > diff --git a/arch/arm/arm64/arm64.S b/arch/arm/arm64/arm64.S
> > index 6dab875..f63a1be 100644
> > --- a/arch/arm/arm64/arm64.S
> > +++ b/arch/arm/arm64/arm64.S
> > @@ -520,3 +520,15 @@ ENTRY(__arch_switch_threads)
> >       mov   sp,  x4
> >       ret
> >   ENDPROC(__arch_switch_threads)
> > +
> > +/*
> > + * => sp = thread->sp
> > + * <= x0 -> user data
> > + *    x1 -> thread's main function
> > + */
> > +ENTRY(arm_start_thread)
> > +    add  x2, sp, #(CALLEE_SAVED_REGISTERS * 8)
> > +    ldp  x0, x1, [x2]
> 
> Can you please document what the 2 instructions above are doing? A define
> would also be very helpful.
okay.

Thanks
Huang Shijie

_______________________________________________
Minios-devel mailing list
Minios-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/cgi-bin/mailman/listinfo/minios-devel