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From: Ian Campbell <ian.campbell@citrix.com>
To: Tim Deegan <tim@xen.org>
Cc: julien.grall@citrix.com, stefano.stabellini@eu.citrix.com,
	xen-devel@lists.xen.org
Subject: Re: [PATCH RFC 5/7] xen: arm: rewrite start of day page table and cpu bring up
Date: Fri, 20 Sep 2013 18:09:58 +0100	[thread overview]
Message-ID: <1379696998.8994.43.camel@hastur.hellion.org.uk> (raw)
In-Reply-To: <20130919113652.GF52431@ocelot.phlegethon.org>

On Thu, 2013-09-19 at 12:36 +0100, Tim Deegan wrote:
>  
> > -        PRINT("- Ready -\r\n")
> > +1:      PRINT("- Ready -\r\n")
> 
> Again, I'd prefer the label to go above (logically connected to the end
> of the block being skipped) to avoid the risk of someone adding new code
> just before '- Ready -' and having it be accidentally skipped.

I've been half thinking about defining some macros:

#define BOOT_CPU_START(name)  cbnz x22, boot_cpu_#name_skip
#define BOOT_CPU_END(name) boot_cpu_#name_skip:

So we would end up with:
BOOT_CPU_START(build_fixmap)
     /* All the stuff to build the fixmap */
BOOT_CPU_END(build_fixmap)

I'm in two minds about whether this is an improvement though.

Ian.

  reply	other threads:[~2013-09-20 17:09 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-17  1:37 [PATCH RFC 0/N] xen: arm: rework early bring up Ian Campbell
2013-09-17  1:40 ` [PATCH RFC 1/7] xen: arm: Load xen under 4GB on 32-bit Ian Campbell
2013-09-18 15:44   ` Julien Grall
2013-09-19  9:21   ` Tim Deegan
2013-09-17  1:40 ` [PATCH RFC 2/7] xen: arm: Log the raw MIDR on boot Ian Campbell
2013-09-17 12:05   ` Julien Grall
2013-09-19  9:21   ` Tim Deegan
2013-09-17  1:40 ` [PATCH RFC 3/7] xen: arm: make sure we stay within the memory bank during mm setup Ian Campbell
2013-09-17 12:19   ` Julien Grall
2013-09-19  9:27     ` Tim Deegan
2013-09-17  1:40 ` [PATCH RFC 4/7] xen: arm: add two new device tree helpers Ian Campbell
2013-09-17 13:05   ` Julien Grall
2013-09-18 17:11   ` Julien Grall
2013-09-18 17:14     ` Ian Campbell
2013-09-17  1:40 ` [PATCH RFC 5/7] xen: arm: rewrite start of day page table and cpu bring up Ian Campbell
2013-09-17 16:18   ` Julien Grall
2013-09-17 16:36     ` Ian Campbell
2013-09-17 16:55       ` Julien Grall
2013-09-17 18:30         ` Andre Przywara
2013-09-17 19:19           ` Ian Campbell
2013-09-18 13:57   ` Julien Grall
2013-09-18 15:12     ` Ian Campbell
2013-09-18 17:06   ` Julien Grall
2013-09-18 17:14     ` Ian Campbell
2013-09-19 11:36   ` Tim Deegan
2013-09-20 17:09     ` Ian Campbell [this message]
2013-09-20 17:16     ` Ian Campbell
2013-09-19 13:36   ` Tim Deegan
2013-09-17  1:40 ` [PATCH RFC 6/7] xen: arm: configure TCR_EL2 for 40 bit physical address space Ian Campbell
2013-09-18 15:50   ` Julien Grall
2013-09-19 13:42   ` Tim Deegan
2013-09-17  1:40 ` [PATCH RFC 7/7] xen: arm: split cpu0's domheap mapping PTs out from xen_second Ian Campbell
2013-09-19 13:47   ` Tim Deegan
2013-09-17 11:34 ` [PATCH RFC 0/N] xen: arm: rework early bring up Julien Grall
2013-09-17 12:43   ` Ian Campbell
2013-09-18 13:40     ` Julien Grall
2013-09-18 17:33 ` Julien Grall
2013-09-18 19:22   ` Ian Campbell
2013-09-18 19:24     ` Ian Campbell
2013-09-18 20:00       ` Julien Grall
2013-09-18 20:22         ` Ian Campbell
2013-09-18 21:14           ` Julien Grall
2013-09-18 21:28             ` Ian Campbell
2013-09-19 14:49               ` Julien Grall
2013-09-19 15:51                 ` Ian Campbell

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