[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH] x86/msr: fix X2APIC_LAST
- To: Edwin Torok <edvin.torok@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>
- Date: Tue, 26 Jul 2022 15:03:42 +0000
- Accept-language: en-GB, en-US
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=6o9RvZbTsDfjC8LrRyMyCQQsobqoKLle2HPX71gNEQU=; b=YeRH0M6a61LH+Vyv94Kn91y8j/T56Pg0VFH2KXu7pN/kp1Fea0qolImYg75t+s0WsFFfvnfNU8q7YEbTymxh6jn0YWocYX/byPiih96QBRIfmU3j1/0hqBMxbJS9zBRmQBEJRrdgNT80M1qwqEKLA5z4IDhJcO7xrLtg9BzINMEr8VmFY4THGPIyTuE+3L+yuAMWdGfxT3yFVHx4ur3HYAn0Ol91YZ9Hsp0nyN2aDBsKvmFgfv40vRSkiFN+I3A987ippMBhjaGpbslx5OzPjYIhWaX0cQsRa5V/6Qg4BnMGlaahZFQ/Sl3yq2bMIFug86adC2hotEXIDBzBS4ahYw==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=SIUCcP3S0kVeBU/+beJJVYXHTuwV071RBHn3xu0PTZEmsTXhh0qMtA6xd5rT3HxNcsXFNEAfkxNK7bKpoDbTgSf0nIQ21C+Uk0qX7S6LsPrneQyTHRzYtBvroZLB9tI9DGq2eVRp2esxLTQLd+dfNzi5iP48ZAlU8XOldA8Dw0MqzutjehiuvhoJC2tbN2qFSYpazEu5mPULnppfiEyquIVv+ab5A9PL+LHN1GxgHuYgjPPI9wdbz9i05N0VMwilttvQoPdcJArzLphoS6pJqgJ141SRTtB0wAJaYrOwj7N8Gm/43oQ1w6tAVVVMW2Gu6ErKQ51KS32BViC4G+5ciQ==
- Authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=citrix.com;
- Cc: Jan Beulich <jbeulich@xxxxxxxx>, Roger Pau Monne <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
- Delivery-date: Tue, 26 Jul 2022 15:03:55 +0000
- Ironport-data: A9a23:5K77Sawko1PIMbAKXbJ6t+cpxyrEfRIJ4+MujC+fZmUNrF6WrkVVz GYfXz3VP63fMWCgfd8na9uwoUMDvp/cn9RiTQtqqiAxQypGp/SeCIXCJC8cHc8zwu4v7q5Dx 59DAjUVBJlsFhcwnj/0bv676yEUOZigHtLUEPTDNj16WThqQSIgjQMLs+Mii8tjjMPR7zml4 LsemOWCfg7+s9JIGjhMsfjb90ky5K6aVA4w5TTSW9ga5DcyqFFNZH4vDfnZB2f1RIBSAtm7S 47rpF1u1jqEl/uFIorNfofTKiXmcJaLVeS9oiM+t5yZqgpDvkQPPpMTb5LwX6v1ZwKhxLidw P0V3XC5pJxA0qfkwIzxWDEAe81y0DEvFBYq7hFTvOTKp3AqfUcAzN1/VnwuZ9QHodx+GCYR1 fMeCxJXciiM0rfeLLKTEoGAh+wFBeyyZsY6hSslyjvUS/E7XZrEXqPGo8dC2ys9jdxPGvCYY NcFbT1ob1LLZBgn1lU/Ucpi2rv3wCehNWEGwL6WjfNfD2z75Qp9yrXydvHSfcSHX559lUeEv GPWuW/+B3n2MfTAlGvZqinx24cjmwv/ZLALM5nl+8Uz3nmS3EkjTxRRW1SS9KzRZkmWHog3x 1Yv0jojq+0++VKmSvH5XgakuziUsxgEQd1SHuYmrgaXxcL84QyUG2wFRT5pc8E9uYk9QjlC/ kCNt8PkA3poqrL9dJ6G3rKdrDf3PDdPK2YHPHUAVVFdv4elp5wvhBXSSNolCLSyktD+BTD3x XaNsTQ6gLIQy8UM0s1X4Gz6vt5lnbCRJiZd2+kddjzNAt9RDGJ9W7GV1A==
- Ironport-hdrordr: A9a23:Vh8MvaliCv76mb99WGk5e2pPHzjpDfOPimdD5ihNYBxZY6Wkfp +V8cjzhCWftN9OYhodcIi7SdK9qXO1z+8X3WGIVY3SETUOy1HYVr2KirGSjwEIeheOvNK1sJ 0NT0EQMqyWMbEXt6fHCUyDYq4dKbq8ge+VbIXlvhFQpGhRAskOgTuRSDzra3GeLzM2Z6bRYa Dsgvav0ADQHEj/AP7aOlA1G8z44/HbnpPvZhALQzQ97hOVsD+u4LnmVzCFwxY3SVp0sPYf2F mAtza8yrSosvm9xBOZ/XTU9Y5qlNzozcYGLNCQi/ISNi7nhm+TFcRcsvy5zXMISdOUmRMXee r30lMd1gNImjTsl1SO0FnQMs/boXATAjHZuAalaDDY0LHErXoBerZ8bMRiA1XkAgMbza9BOO gg5RPni7NHSRzHhyjz/N7OSlVjkVe1u2MrlaoJg2VYSpZ2Us4ZkWUzxjIjLH47JlON1Kk3VO 11SM3M7vdfdl2XK3jfo2l02dSpGnA+BA2PTEQOstGcl2E+pgEz82IIgMgE2nsQ/pM0TJdJo+ zCL6RzjblLCssbd7h0CusNSda+TmbNXRXPOmSPJkmPLtBOB1vd75rspLkl7uCjf5IFiJM0hZ TaSVtd8XU/fkr/YPf+qKGjMiq9NVlVcQ6duv22vaIJy4EUbICbQhGrWRQpj9aqpekZD4nSR+ uzUagmccPeEQ==
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHYoP4rWPti1ZyqlkWj0N9bQww93a2Qv80A
- Thread-topic: [PATCH] x86/msr: fix X2APIC_LAST
On 26/07/2022 15:43, Edwin Török wrote:
> The latest Intel manual now says the X2APIC reserved range is only
> 0x800 to 0x8ff (NOT 0xbff). The AMD manual documents 0x800-0x8ff too.
>
> There are non-X2APIC MSRs in the 0x900-0xbff range now:
> e.g. 0x981 is IA32_TME_CAPABILITY, an architectural MSR.
>
> The new MSR in this range appears to have been introduced in Icelake,
> so this commit should be backported to Xen versions supporting Icelake.
>
> Backport: 4.13+
>
> Signed-off-by: Edwin Török <edvin.torok@xxxxxxxxxx>
Having done some archaeology, this changed between SDM 68 (Nov 2018) and
SDM 69 (Jan 2019)
~Andrew
|
