[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Xen-devel] [PATCH V2 1/2] x86/altp2m: Add hypercall to set a range of sve bits
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Alexandru Stefan ISAILA <aisaila@xxxxxxxxxxxxxxx>
- Date: Wed, 20 Nov 2019 08:48:33 +0000
- Accept-language: en-US
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=bitdefender.com; dmarc=pass action=none header.from=bitdefender.com; dkim=pass header.d=bitdefender.com; arc=none
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=z7f8r66/+N+qF6PhXfXH9ktEPaexrd9EoHnskpEfjFk=; b=VRJaLqx2t3S6gEM612jKTwAucBJpyTqiZ51wBENDJ0m8ANITzNcGHk6cty1JDbjNlOS9A2WT4rXRQzd/HNV+i2RWMcfdExAiRwWSokzPSnJMQlqUj+nXSWqKm8p9Nras0XxTnzV4Vd4iRfPsVouKEG+emqyXG3VOAyNW+AR9Y76fcq47Ma4Hj9OFHNMBUUybrsL+wkD+/olVBQ3/NFkUmj2P11sX7sq4zaHRoUXi5vlWV3dJbPvlSHB+03YLKlbHldFjxO0eFcQtGRwwhw2GcsZAkO7KGvzj2x8nFpPQ+hjmmpFezxlb/jWCLJ+gvBJlpuwp80uaNbh9fVFnpeK+/A==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=TSarQ7W1jgX3SRMsRX96nMRHzsO9L1jM0iKaAJPqG1KVaYFK7bCZUTut+jh8x0swmWfnwTfIU0jsvyRMG0y/n166HlIxT4YN7GkWWuaG5xj+11K6ZH5cN7SfSZZKBnY729aem2pMvTVQC44Ky/XCnpbCmbAl6ZtQU+0RiQZZjJjJu5VOZsODaDex2wymcsdzRtSngTbVAQFM7+R0xnqz69HrBD85PDWPy7MyTnovVwnXKWTc80z9xas3VJs5levbQIGKttHkFX/aBNOc9J8aJSjNE67gP/+2ycbiKm/o7uPmq7LkEdL5yZ6y+YeZeBZZt7WmIP9gB62+gmRFuD45Ug==
- Authentication-results: spf=none (sender IP is ) smtp.mailfrom=aisaila@xxxxxxxxxxxxxxx;
- Cc: Petre Ovidiu PIRCALABU <ppircalabu@xxxxxxxxxxxxxxx>, "sstabellini@xxxxxxxxxx" <sstabellini@xxxxxxxxxx>, "julien@xxxxxxx" <julien@xxxxxxx>, "wl@xxxxxxx" <wl@xxxxxxx>, Razvan COJOCARU <rcojocaru@xxxxxxxxxxxxxxx>, "konrad.wilk@xxxxxxxxxx" <konrad.wilk@xxxxxxxxxx>, "george.dunlap@xxxxxxxxxxxxx" <george.dunlap@xxxxxxxxxxxxx>, "andrew.cooper3@xxxxxxxxxx" <andrew.cooper3@xxxxxxxxxx>, "ian.jackson@xxxxxxxxxxxxx" <ian.jackson@xxxxxxxxxxxxx>, "tamas@xxxxxxxxxxxxx" <tamas@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "roger.pau@xxxxxxxxxx" <roger.pau@xxxxxxxxxx>
- Delivery-date: Wed, 20 Nov 2019 08:48:44 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHVn36CZgsjfQ8yGkeVry3V2yKjqqeTv5SA
- Thread-topic: [PATCH V2 1/2] x86/altp2m: Add hypercall to set a range of sve bits
On 20.11.2019 10:41, Jan Beulich wrote:
> On 20.11.2019 09:29, Alexandru Stefan ISAILA wrote:
>> On 19.11.2019 11:23, Jan Beulich wrote:
>>> On 19.11.2019 10:05, Alexandru Stefan ISAILA wrote:
>>>> On 18.11.2019 16:09, Jan Beulich wrote:
>>>>> On 18.11.2019 14:39, Alexandru Stefan ISAILA wrote:
>>>>>> For this HVMOP_ALTP2M_INTERFACE_VERSION shout be increased. I will leave
>>>>>> it to Tamas to decide if we will need a different structure for
>>>>>> xen_hvm_altp2m_suppress_ve_multi to keep the compatibility.
>>>>>
>>>>> Wasn't is that due to the possible guest exposure it was decided
>>>>> that the interface version approach was not suitable here, and hence
>>>>> it shouldn't be bumped any further?
>>>>>
>>>>
>>>> That is correct but there was also requested to add the new opaque field
>>>> so I don't know how to have that an still keep the same version.
>>>
>>> New sub-op?
>>
>> Wouldn't it be simpler to have a new structure to use for this,
>> something like "struct xen_hvm_altp2m_suppress_ve_multi" and then the
>> version will be unchanged
>
> Well, if the original sub-op is to remain entirely untouched,
> then yes, sure. I have to admit that in the course of the
> discussion it became decreasingly clear whether the original
> sub-op also wanted some for of adjustment.
>
I agree with the clearness here. So the original sub-op will remain
untouched.
Thanks,
Alex
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel
|
