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From: "Jan Beulich" <JBeulich@suse.com>
To: Juergen Gross <jgross@suse.com>
Cc: andrew.cooper3@citrix.com, Dario Faggioli <dfaggioli@suse.com>,
	wei.liu2@citrix.com, xen-devel@lists.xenproject.org
Subject: Re: [PATCH v2 3/6] xen/x86: support per-domain flag for xpti
Date: Thu, 08 Mar 2018 05:49:49 -0700	[thread overview]
Message-ID: <5AA13F7D02000078001AFCB3@prv-mh.provo.novell.com> (raw)
In-Reply-To: <a0e3b93a-0111-bfb0-fb9e-ff736769fe7e@suse.com>

>>> On 08.03.18 at 12:30, <jgross@suse.com> wrote:
> On 08/03/18 11:17, Jan Beulich wrote:
>>>>> On 02.03.18 at 09:14, <jgross@suse.com> wrote:
>>> +static int parse_xpti(const char *s)
>>> +{
>>> +    int rc = 0;
>>> +
>>> +    switch ( parse_bool(s, NULL) )
>>> +    {
>>> +    case 0:
>>> +        opt_xpti = XPTI_OFF;
>>> +        break;
>>> +    case 1:
>>> +        opt_xpti = XPTI_ON;
>>> +        break;
>>> +    default:
>>> +        if ( !strcmp(s, "default") )
>> 
>> This wants to also be mentioned in the command line doc.
> 
> Uuh, this was a copy-and-paste result from my alternative XPTI approach.
> I'll just drop that value.

I'm not sure that's the best route (and I did intentionally not ask for
you doing so): In cases where you can't edit the pre-built command
line options (like e.g. those read by xen.efi from the config file), it
is quite useful to be able to override what may be there back to the
default.

Jan


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  reply	other threads:[~2018-03-08 12:49 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-02  8:13 [PATCH v2 0/6] xen/x86: various XPTI speedups Juergen Gross
2018-03-02  8:13 ` [PATCH v2 1/6] x86/xpti: avoid copying L4 page table contents when possible Juergen Gross
2018-03-05 16:43   ` Jan Beulich
2018-03-08 11:59     ` Juergen Gross
2018-03-08 12:47       ` Jan Beulich
     [not found]       ` <5AA13EEA02000078001AFCAF@suse.com>
2018-03-08 13:03         ` Juergen Gross
     [not found]   ` <5A9D81DC02000078001AEB68@suse.com>
2018-03-06  7:01     ` Juergen Gross
2018-03-06  7:58       ` Jan Beulich
     [not found]       ` <5A9E583002000078001AED3A@suse.com>
2018-03-06  8:06         ` Juergen Gross
2018-03-06  8:17           ` Jan Beulich
2018-03-02  8:13 ` [PATCH v2 2/6] x86/xpti: don't flush TLB twice when switching to 64-bit pv context Juergen Gross
2018-03-05 16:49   ` Jan Beulich
     [not found]   ` <5A9D831F02000078001AEB7E@suse.com>
2018-03-06  7:02     ` Juergen Gross
2018-03-02  8:14 ` [PATCH v2 3/6] xen/x86: support per-domain flag for xpti Juergen Gross
2018-03-08 10:17   ` Jan Beulich
     [not found]   ` <5AA11BDE02000078001AFB92@suse.com>
2018-03-08 11:30     ` Juergen Gross
2018-03-08 12:49       ` Jan Beulich [this message]
     [not found]       ` <5AA13F7D02000078001AFCB3@suse.com>
2018-03-08 13:13         ` Juergen Gross
2018-03-02  8:14 ` [PATCH v2 4/6] xen/x86: disable global pages for domains with XPTI active Juergen Gross
2018-03-02 11:03   ` Wei Liu
2018-03-02 11:30     ` Juergen Gross
2018-03-08 13:38   ` Jan Beulich
2018-03-09  3:01     ` Tian, Kevin
2018-03-09  5:23     ` Tian, Kevin
2018-03-09  8:34       ` Jan Beulich
     [not found]       ` <5AA2551002000078001B0116@suse.com>
2018-03-09  8:42         ` Juergen Gross
     [not found]   ` <5AA14AF302000078001AFD30@suse.com>
2018-03-08 14:05     ` Juergen Gross
2018-03-08 14:33       ` Jan Beulich
     [not found]       ` <5AA157E002000078001AFDA4@suse.com>
2018-03-08 14:39         ` Juergen Gross
2018-03-08 15:06   ` Jan Beulich
2018-03-09 14:40     ` Juergen Gross
2018-03-09 15:30       ` Jan Beulich
2018-03-02  8:14 ` [PATCH v2 5/6] xen/x86: use flag byte for decision whether xen_cr3 is valid Juergen Gross
2018-03-08 14:24   ` Jan Beulich
     [not found]   ` <5AA155BE02000078001AFD89@suse.com>
2018-03-08 14:28     ` Juergen Gross
2018-03-02  8:14 ` [PATCH v2 6/6] xen/x86: use PCID feature for XPTI Juergen Gross
2018-03-08 15:27   ` Jan Beulich
2018-03-05 16:20 ` [PATCH v2 0/6] xen/x86: various XPTI speedups Dario Faggioli

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