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Date:   Tue, 17 Mar 2020 10:13:57 +0100 (CET)
From:   Miroslav Benes <mbenes@suse.cz>
To:     Boris Ostrovsky <boris.ostrovsky@oracle.com>
cc:     jgross@suse.com, sstabellini@kernel.org, tglx@linutronix.de,
        mingo@redhat.com, bp@alien8.de, hpa@zytor.com, jpoimboe@redhat.com,
        x86@kernel.org, xen-devel@lists.xenproject.org,
        linux-kernel@vger.kernel.org, live-patching@vger.kernel.org,
        jslaby@suse.cz
Subject: Re: [PATCH 1/2] x86/xen: Make the boot CPU idle task reliable
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References: <20200312142007.11488-1-mbenes@suse.cz> <20200312142007.11488-2-mbenes@suse.cz> <1b98d601-d9d9-879c-918c-737830d80ac5@oracle.com>
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On Mon, 16 Mar 2020, Boris Ostrovsky wrote:

> 
> 
> On 3/12/20 10:20 AM, Miroslav Benes wrote:
> > --- a/arch/x86/xen/xen-head.S
> > +++ b/arch/x86/xen/xen-head.S
> > @@ -35,7 +35,7 @@ SYM_CODE_START(startup_xen)
> >  	rep __ASM_SIZE(stos)
> >  
> >  	mov %_ASM_SI, xen_start_info
> > -	mov $init_thread_union+THREAD_SIZE, %_ASM_SP
> > +	mov $init_thread_union+THREAD_SIZE-SIZEOF_PTREGS, %_ASM_SP
> 
> This is initial_stack, isn't it?

It is. I'll change it.

Thanks
Miroslav