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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: Xen-devel <xen-devel@lists.xen.org>
Subject: Re: [PATCH 7/9] x86/pv: Merge the pv hypercall tables
Date: Thu, 11 Aug 2016 13:36:34 +0100	[thread overview]
Message-ID: <f5b2c4b4-6869-c7d6-729c-1fc386d60ddb@citrix.com> (raw)
In-Reply-To: <57A224E40200007800102535@prv-mh.provo.novell.com>

On 03/08/16 16:07, Jan Beulich wrote:
>>>> On 18.07.16 at 11:51, <andrew.cooper3@citrix.com> wrote:
>> For the same reason as c/s 33a231e3f "x86/HVM: fold hypercall tables", this
>> removes the risk of accidentally updating only one of the tables.
>>
>> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
> Reviewed-by: Jan Beulich <jbeulich@suse.com>
>
> But having come here I still can't see why this can't be folded with
> patch 5 without also folding in patch 6. Anyway - as long as they're
> going to get committed without too big of a time gap in between,
> the final result is what matters most.

References to hypercall_table and compat_hypercall_table are buried in
the multicall inline assembler.

Folding the tables first involves complicated changes, just to be taken
out one patch later.

The risk of accidentally breaking bisectability is greater than the
downside of splitting the patches up a bit.  (Either way, they will be
committed together.)

~Andrew

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  reply	other threads:[~2016-08-11 12:36 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-18  9:51 [PATCH 0/9] x86: Move the pv hypercall into C Andrew Cooper
2016-07-18  9:51 ` [PATCH 1/9] x86/hypercall: Move some of the hvm hypercall infrastructure into hypercall.h Andrew Cooper
2016-08-02 12:50   ` Jan Beulich
2016-08-02 13:14     ` Andrew Cooper
2016-08-02 13:28       ` Jan Beulich
2016-08-02 14:04         ` Julien Grall
2016-08-02 14:17           ` Jan Beulich
2016-08-02 14:26             ` Julien Grall
2016-08-02 14:54               ` Jan Beulich
2016-08-02 14:59                 ` Andrew Cooper
2016-08-02 15:05                   ` Jan Beulich
2016-08-02 18:43                     ` Stefano Stabellini
2016-08-03  8:53                       ` Jan Beulich
2016-08-03 10:55                         ` Julien Grall
2016-08-03 18:20                           ` Stefano Stabellini
2016-08-04 11:27                             ` Julien Grall
2016-07-18  9:51 ` [PATCH 2/9] x86/pv: Support do_set_segment_base() for compat guests Andrew Cooper
2016-08-02 12:52   ` Jan Beulich
2016-08-02 13:25     ` Andrew Cooper
2016-08-02 13:31       ` Jan Beulich
2016-08-02 13:39         ` Andrew Cooper
2016-08-02 13:47           ` Jan Beulich
2016-07-18  9:51 ` [PATCH 3/9] x86/hypercall: Move the hypercall arg tables into C Andrew Cooper
2016-08-02 12:59   ` Jan Beulich
2016-07-18  9:51 ` [PATCH 4/9] x86/pv: Implement pv_hypercall() in C Andrew Cooper
2016-08-02 13:12   ` Jan Beulich
2016-08-02 14:06     ` Andrew Cooper
2016-08-02 14:19       ` Jan Beulich
2016-08-11 11:57     ` Andrew Cooper
2016-08-11 12:20       ` Jan Beulich
2016-07-18  9:51 ` [PATCH 5/9] x86/hypercall: Move the hypercall tables into C Andrew Cooper
2016-08-02 13:23   ` Jan Beulich
2016-08-02 13:30     ` Andrew Cooper
2016-08-02 13:40       ` Jan Beulich
2016-08-11 12:00         ` Andrew Cooper
2016-07-18  9:51 ` [PATCH 6/9] xen/multicall: Rework arch multicall handling Andrew Cooper
2016-07-20 12:35   ` Julien Grall
2016-08-03 15:02   ` Jan Beulich
2016-08-03 15:12     ` Andrew Cooper
2016-07-18  9:51 ` [PATCH 7/9] x86/pv: Merge the pv hypercall tables Andrew Cooper
2016-08-03 15:07   ` Jan Beulich
2016-08-11 12:36     ` Andrew Cooper [this message]
2016-07-18  9:51 ` [PATCH 8/9] x86/hypercall: Merge the hypercall arg tables Andrew Cooper
2016-08-03 15:12   ` Jan Beulich
2016-08-03 15:15     ` Andrew Cooper
2016-08-03 15:28       ` Jan Beulich
2016-07-18  9:51 ` [PATCH 9/9] x86/hypercall: Reduce the size of the hypercall tables Andrew Cooper
2016-08-03 15:17   ` Jan Beulich

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