From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <jbeulich@suse.com>, wei.liu2@citrix.com
Cc: xen-devel@lists.xenproject.org
Subject: Re: [PATCH v5 08/13] x86/traps: factor out pv_trap_init
Date: Wed, 28 Jun 2017 12:43:03 +0100 [thread overview]
Message-ID: <fc5bbfe4-3904-c6f6-9a3a-6fa39da5cfb3@citrix.com> (raw)
In-Reply-To: <5952A1980200007800101519@prv-mh.provo.novell.com>
On 27/06/17 19:19, Jan Beulich wrote:
>>>> Andrew Cooper <andrew.cooper3@citrix.com> 06/27/17 8:06 PM >>>
>> On 26/06/17 17:28, Wei Liu wrote:
>>> --- a/xen/arch/x86/traps.c
>>> +++ b/xen/arch/x86/traps.c
>>> @@ -1934,21 +1934,29 @@ void __init init_idt_traps(void)
>>> this_cpu(compat_gdt_table) = boot_cpu_compat_gdt_table;
>>> }
>>>
>>> +void __init pv_trap_init(void)
>>> +{
>>> + /* The 32-on-64 hypercall vector is only accessible from ring 1. */
>>> + _set_gate(idt_table + HYPERCALL_VECTOR,
>> &idt_table[HYPERCALL_VECTOR]
> I don't think we should require this. Personally I prefer the form Wei used,
> and iirc there's nothing in our coding style guidelines that mandates the
> form you suggest.
One form is obviously an array access, while one is not obvious.
I'm not overly fussed, but I would prefer the former.
~Andrew
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next prev parent reply other threads:[~2017-06-28 11:43 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-26 16:28 [PATCH v5 00/13] x86: refactor trap handling code Wei Liu
2017-06-26 16:28 ` [PATCH v5 01/13] x86: move callback_op code to pv/callback.c Wei Liu
2017-06-26 16:44 ` Andrew Cooper
2017-06-27 6:13 ` Jan Beulich
2017-06-27 8:48 ` Wei Liu
2017-06-27 17:57 ` Andrew Cooper
2017-06-28 10:14 ` Wei Liu
2017-06-26 16:28 ` [PATCH v5 02/13] x86: move the compat callback ops next to the non-compat variant Wei Liu
2017-06-26 16:51 ` Andrew Cooper
2017-06-26 16:28 ` [PATCH v5 03/13] x86: move do_set_trap_table to pv/callback.c Wei Liu
2017-06-26 16:53 ` Andrew Cooper
2017-06-26 16:28 ` [PATCH v5 04/13] x86: move compat_set_trap_table along side the non-compat variant Wei Liu
2017-06-26 16:53 ` Andrew Cooper
2017-06-26 16:28 ` [PATCH v5 05/13] x86: remove the now empty x86_64/compat/traps.c Wei Liu
2017-06-26 16:54 ` Andrew Cooper
2017-06-26 16:28 ` [PATCH v5 06/13] x86: simplify guest_has_trap_callback Wei Liu
2017-06-26 16:57 ` Andrew Cooper
2017-06-27 6:09 ` Jan Beulich
2017-06-27 9:02 ` Wei Liu
2017-06-26 16:28 ` [PATCH v5 07/13] x86/traps: simplify and rename send_guest_trap Wei Liu
2017-06-27 18:01 ` Andrew Cooper
2017-06-27 18:21 ` Jan Beulich
2017-06-27 18:28 ` Andrew Cooper
2017-06-26 16:28 ` [PATCH v5 08/13] x86/traps: factor out pv_trap_init Wei Liu
2017-06-27 18:05 ` Andrew Cooper
2017-06-27 18:19 ` Jan Beulich
2017-06-28 11:43 ` Andrew Cooper [this message]
2017-06-27 18:26 ` Jan Beulich
2017-06-28 10:06 ` Wei Liu
2017-06-28 10:13 ` Wei Liu
2017-06-26 16:28 ` [PATCH v5 09/13] xen: move do_nmi_op and make it x86 only Wei Liu
2017-06-27 18:08 ` Andrew Cooper
2017-06-27 18:31 ` Jan Beulich
2017-06-27 18:50 ` Andrew Cooper
2017-06-28 10:12 ` Wei Liu
2017-06-27 20:34 ` Stefano Stabellini
2017-06-26 16:28 ` [PATCH v5 10/13] x86/traps: move {un, }register_guest_nmi_callback to pv/callback.c Wei Liu
2017-06-27 18:09 ` Andrew Cooper
2017-06-26 16:28 ` [PATCH v5 11/13] x86/callback.c: slightly change {un, }register_guest_nmi_callback Wei Liu
2017-06-27 18:10 ` Andrew Cooper
2017-06-26 16:28 ` [PATCH v5 12/13] x86/traps: move some PV specific functions to pv/traps.c Wei Liu
2017-06-27 18:12 ` Andrew Cooper
2017-06-27 18:34 ` Jan Beulich
2017-06-26 16:28 ` [PATCH v5 13/13] x86/traps.h: remove unused declaration of cpu_user_regs Wei Liu
2017-06-27 18:13 ` Andrew Cooper
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