From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Gao Subject: Re: [Patch v3 2/2] x86/microcode: Synchronize late microcode loading Date: Tue, 13 Nov 2018 17:08:26 +0800 Message-ID: <20181113090825.GA23682@gao-cwp> References: <1525816893-36669-1-git-send-email-chao.gao@intel.com> <1525816893-36669-2-git-send-email-chao.gao@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <1525816893-36669-2-git-send-email-chao.gao@intel.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: "xen-devel@lists.xen.org" Cc: "Tian, Kevin" , "Raj, Ashok" , Andrew Cooper , Jan Beulich , "Nakajima, Jun" , Thomas Gleixner , Borislav Petkov List-Id: xen-devel@lists.xenproject.org T24gV2VkLCBNYXkgMDksIDIwMTggYXQgMDY6MDE6MzNBTSArMDgwMCwgR2FvLCBDaGFvIHdyb3Rl Ogo+VGhpcyBwYXRjaCBwb3J0cyBtaWNyb2NvZGUgaW1wcm92ZW1lbnQgcGF0Y2hlcyBmcm9tIGxp bnV4IGtlcm5lbC4KPgo+QmVmb3JlIHlvdSByZWFkIGFueSBmdXJ0aGVyOiB0aGUgZWFybHkgbG9h ZGluZyBtZXRob2QgaXMgc3RpbGwgdGhlCj5wcmVmZXJyZWQgb25lIGFuZCB5b3Ugc2hvdWxkIGFs d2F5cyBkbyB0aGF0LiBUaGUgZm9sbG93aW5nIHBhdGNoIGlzCj5pbXByb3ZpbmcgdGhlIGxhdGUg bG9hZGluZyBtZWNoYW5pc20gZm9yIGxvbmcgcnVubmluZyBqb2JzIGFuZCBjbG91ZCB1c2UKPmNh c2VzLgo+Cj5HYXRoZXIgYWxsIGNvcmVzIGFuZCBzZXJpYWxpemUgdGhlIG1pY3JvY29kZSB1cGRh dGUgb24gdGhlbSBieSBkb2luZyBpdAo+b25lLWJ5LW9uZSB0byBtYWtlIHRoZSBsYXRlIHVwZGF0 ZSBwcm9jZXNzIGFzIHJlbGlhYmxlIGFzIHBvc3NpYmxlIGFuZAo+YXZvaWQgcG90ZW50aWFsIGlz c3VlcyBjYXVzZWQgYnkgdGhlIG1pY3JvY29kZSB1cGRhdGUuCj4KPlRoaXMgcGF0Y2ggaXMgYWxz byBpbiBhY2NvcmQgd2l0aCBBbmRyZXcncyBzdWdnZXN0aW9uLAo+IlJlbmRlenZvdXMgYWxsIG9u bGluZSBjcHVzIGluIGFuIElQSSB0byBhcHBseSB0aGUgcGF0Y2gsIGFuZCBrZWVwIHRoZQo+cHJv Y2Vzc29ycyBpbiB1bnRpbCBhbGwgaGF2ZSBjb21wbGV0ZWQgdGhlIHBhdGNoLiIsIGluIFsxXS4K Pgo+WzFdOmh0dHBzOi8vd2lraS54ZW5wcm9qZWN0Lm9yZy93aWtpL1hlblBhcmF2aXJ0T3BzL21p Y3JvY29kZV91cGRhdGUjUnVuX3RpbWVfbWljcm9jb2RlX3VwZGF0ZXMKPgo+U2lnbmVkLW9mZi1i eTogQ2hhbyBHYW8gPGNoYW8uZ2FvQGludGVsLmNvbT4KPlRlc3RlZC1ieTogQ2hhbyBHYW8gPGNo YW8uZ2FvQGludGVsLmNvbT4KPltsaW51eCBjb21taXQ6IGE1MzIxYWVjNjQxMmIyMGI1YWQxNWRi MmQ2YjkxNmMwNTM0OWRiZmZdCj5bbGludXggY29tbWl0OiBiYjhjMTNkNjFhNjI5Mjc2YTE2MmMx ZDJiMWEyMGE4MTVjYmNmYmI3XQo+Q2M6IEtldmluIFRpYW4gPGtldmluLnRpYW5AaW50ZWwuY29t Pgo+Q2M6IEp1biBOYWthamltYSA8anVuLm5ha2FqaW1hQGludGVsLmNvbT4KPkNjOiBBc2hvayBS YWogPGFzaG9rLnJhakBpbnRlbC5jb20+Cj5DYzogQm9yaXNsYXYgUGV0a292IDxicEBzdXNlLmRl Pgo+Q2M6IFRob21hcyBHbGVpeG5lciA8dGdseEBsaW51dHJvbml4LmRlPgo+Q2M6IEFuZHJldyBD b29wZXIgPGFuZHJldy5jb29wZXIzQGNpdHJpeC5jb20+Cj5DYzogSmFuIEJldWxpY2ggPGpiZXVs aWNoQHN1c2UuY29tPgo+LS0tCj4rc3RhdGljIGludCBkb19taWNyb2NvZGVfdXBkYXRlKHZvaWQg Kl9pbmZvKQo+K3sKPisgICAgc3RydWN0IG1pY3JvY29kZV9pbmZvICppbmZvID0gX2luZm87Cj4r ICAgIHVuc2lnbmVkIGludCBjcHUgPSBzbXBfcHJvY2Vzc29yX2lkKCk7Cj4rICAgIGludCByZXQ7 Cj4rCj4rICAgIHJldCA9IHdhaXRfZm9yX2NwdXMoJmluZm8tPmNwdV9pbiwgTUlDUk9DT0RFX0RF RkFVTFRfVElNRU9VVCk7Cj4rICAgIGlmICggcmV0ICkKPisgICAgICAgIHJldHVybiByZXQ7Cj4r Cj4rICAgIC8qCj4rICAgICAqIExvZ2ljYWwgdGhyZWFkcyB3aGljaCBzZXQgdGhlIGZpcnN0IGJp dCBpbiBjcHVfc2libGluZ19tYXNrIGNhbiBkbwo+KyAgICAgKiB0aGUgdXBkYXRlLiBPdGhlciBz aWJsaW5nIHRocmVhZHMganVzdCBhd2FpdCB0aGUgY29tcGxldGlvbiBvZgo+KyAgICAgKiBtaWNy b2NvZGUgdXBkYXRlLgo+KyAgICAgKi8KPisgICAgaWYgKCAhY3B1bWFza190ZXN0X2FuZF9zZXRf Y3B1KAo+KyAgICAgICAgICAgICAgICBjcHVtYXNrX2ZpcnN0KHBlcl9jcHUoY3B1X3NpYmxpbmdf bWFzaywgY3B1KSksICZpbmZvLT5jcHVzKSApCj4rICAgICAgICByZXQgPSBtaWNyb2NvZGVfdXBk YXRlX2NwdShpbmZvLT5idWZmZXIsIGluZm8tPmJ1ZmZlcl9zaXplKTsKCkhJCgpBIGNyaXRpY2Fs IGlzc3VlIEkgcmVhbGl6ZWQgaXMgdGhhdCBtaWNyb2NvZGVfdXBkYXRlX2NwdSgpIGhlcmUgY29u dGFpbnMKbXVjaCB0aGluZ3MsIGZvciBpbnN0YW5jZSwgcGFyc2luZyB0aGUgbWljcm9jb2RlIGJp bmFyeSBhbmQgbG9hZGluZyBpdC4gSXQgaXMKYSBiYWQgaWRlYSB0byBwdXQgc28gbXVjaCB0aGlu Z3MgaW4gc3RvcF9tYWNoaW5lIGNvbnRleHQsIGVzcGVjaWFsbHkgbWVtb3J5CmFsbG9jYXRpb24g KEkgZGlkIG9ic2VydmUgb25lIGFzc2VydGlvbiB0cmlnZ2VyZWQgc29tZXRpbWVzIHdoZW4gZG9p bmcgdGhpcykuCkFGQUlLLCB3ZSBoYXZlIHR3byBzb2x1dGlvbnM6CjEuIHVzZSBhIG1hbGxvYyB2 YXJpYXRpb24gd2hpY2ggY2FuIGJlIHVzZWQgaW4gc3RvcF9tYWNoaW5lIGNvbnRleHQuCjIuIGxp a2UgbGludXgga2VybmVsLCB3ZSBjYW4gc2VwYXJhdGUgdGhlIG1pY3JvY29kZSBwYXJzaW5nIGZy b20gbG9hZGluZywKYW5kIGluIHN0b3BfbWFjaGluZSBjb250ZXh0IG9ubHkgZG8gbWljcm9jb2Rl IGxvYWRpbmcuIFdoZW4gcGFyc2luZyBtaWNyb2NvZGUKYmluYXJ5LCBhbGwgdmFsaWQgdWNvZGVz IGFyZSBwdXQgaW50byBhIGxpc3QuIEF0IGxvYWRpbmcgc3RhZ2UsIGdvaW5nIHRocm91Z2gKdGhl IGxpc3QgaXMgZGVmaW5pdGVseSBzYWZlLgoKV2hhdCdzIHlvdXIgb3BpbmlvbiBvbiB0aGVzZSB0 d28gc29sdXRpb25zPwoKVGhhbmtzCkNoYW8KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3Rz LnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0 aW5mby94ZW4tZGV2ZWw=