From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Gao Subject: Re: [PATCH v4 4/6] microcode: don't call apply_microcode() in cpu_request_microcode() Date: Fri, 30 Nov 2018 16:57:45 +0800 Message-ID: <20181130085745.GB32365@gao-cwp> References: <1543383256-12371-1-git-send-email-chao.gao@intel.com> <1543383256-12371-5-git-send-email-chao.gao@intel.com> <20181128150225.4axdecgu33xlwwzu@mac> <20181129042846.GC23701@gao-cwp> <20181129094605.6skmo3xnwmuzwy6y@mac> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1gSeZp-0000lJ-BS for xen-devel@lists.xenproject.org; Fri, 30 Nov 2018 08:55:09 +0000 Content-Disposition: inline In-Reply-To: <20181129094605.6skmo3xnwmuzwy6y@mac> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Roger Pau =?iso-8859-1?Q?Monn=E9?= Cc: xen-devel@lists.xenproject.org, Wei Liu , Jan Beulich , Andrew Cooper List-Id: xen-devel@lists.xenproject.org T24gVGh1LCBOb3YgMjksIDIwMTggYXQgMTA6NDY6MDVBTSArMDEwMCwgUm9nZXIgUGF1IE1vbm7D qSB3cm90ZToKPk9uIFRodSwgTm92IDI5LCAyMDE4IGF0IDEyOjI4OjQ2UE0gKzA4MDAsIENoYW8g R2FvIHdyb3RlOgo+PiBPbiBXZWQsIE5vdiAyOCwgMjAxOCBhdCAwNDowMjoyNVBNICswMTAwLCBS b2dlciBQYXUgTW9ubsOpIHdyb3RlOgo+PiA+T24gV2VkLCBOb3YgMjgsIDIwMTggYXQgMDE6MzQ6 MTRQTSArMDgwMCwgQ2hhbyBHYW8gd3JvdGU6Cj4+ID4+IGRpZmYgLS1naXQgYS94ZW4vYXJjaC94 ODYvbWljcm9jb2RlLmMgYi94ZW4vYXJjaC94ODYvbWljcm9jb2RlLmMKPj4gPj4gaW5kZXggODM1 MGQyMi4uY2NhN2IyYyAxMDA2NDQKPj4gPj4gLS0tIGEveGVuL2FyY2gveDg2L21pY3JvY29kZS5j Cj4+ID4+ICsrKyBiL3hlbi9hcmNoL3g4Ni9taWNyb2NvZGUuYwo+PiA+PiBAQCAtMjMzLDIwICsy MzMsMTIgQEAgaW50IG1pY3JvY29kZV9yZXN1bWVfY3B1KHVuc2lnbmVkIGludCBjcHUpCj4+ID4+ ICAgICAgcmV0dXJuIGVycjsKPj4gPj4gIH0KPj4gPj4gIAo+PiA+PiAtc3RhdGljIGludCBtaWNy b2NvZGVfdXBkYXRlX2NwdShjb25zdCB2b2lkICpidWYsIHNpemVfdCBzaXplKQo+PiA+PiArc3Rh dGljIGludCBtaWNyb2NvZGVfdXBkYXRlX2NwdSh2b2lkKQo+PiA+PiAgewo+PiA+PiAgICAgIGlu dCBlcnI7Cj4+ID4+IC0gICAgdW5zaWduZWQgaW50IGNwdSA9IHNtcF9wcm9jZXNzb3JfaWQoKTsK Pj4gPj4gLSAgICBzdHJ1Y3QgdWNvZGVfY3B1X2luZm8gKnVjaSA9ICZwZXJfY3B1KHVjb2RlX2Nw dV9pbmZvLCBjcHUpOwo+PiA+PiAgCj4+ID4+ICAgICAgc3Bpbl9sb2NrKCZtaWNyb2NvZGVfbXV0 ZXgpOwo+PiA+PiAtCj4+ID4+IC0gICAgZXJyID0gbWljcm9jb2RlX29wcy0+Y29sbGVjdF9jcHVf aW5mbyhjcHUsICZ1Y2ktPmNwdV9zaWcpOwo+PiA+PiAtICAgIGlmICggbGlrZWx5KCFlcnIpICkK Pj4gPj4gLSAgICAgICAgZXJyID0gbWljcm9jb2RlX29wcy0+Y3B1X3JlcXVlc3RfbWljcm9jb2Rl KGNwdSwgYnVmLCBzaXplKTsKPj4gPj4gLSAgICBlbHNlCj4+ID4+IC0gICAgICAgIF9fbWljcm9j b2RlX2ZpbmlfY3B1KGNwdSk7Cj4+ID4+IC0KPj4gPj4gKyAgICBlcnIgPSBtaWNyb2NvZGVfb3Bz LT5hcHBseV9taWNyb2NvZGUoc21wX3Byb2Nlc3Nvcl9pZCgpKTsKPj4gPj4gICAgICBzcGluX3Vu bG9jaygmbWljcm9jb2RlX211dGV4KTsKPj4gPj4gIAo+PiA+PiAgICAgIHJldHVybiBlcnI7Cj4+ ID4+IEBAIC0yNTksNyArMjUxLDcgQEAgc3RhdGljIGxvbmcgZG9fbWljcm9jb2RlX3VwZGF0ZSh2 b2lkICpfaW5mbykKPj4gPj4gIAo+PiA+PiAgICAgIEJVR19PTihpbmZvLT5jcHUgIT0gc21wX3By b2Nlc3Nvcl9pZCgpKTsKPj4gPj4gIAo+PiA+PiAtICAgIGVycm9yID0gbWljcm9jb2RlX3VwZGF0 ZV9jcHUoaW5mby0+YnVmZmVyLCBpbmZvLT5idWZmZXJfc2l6ZSk7Cj4+ID4+ICsgICAgZXJyb3Ig PSBtaWNyb2NvZGVfdXBkYXRlX2NwdSgpOwo+PiA+Cj4+ID5XaHkgZG9uJ3QgeW91IGp1c3Qgc2V0 IGluZm8tPmVycm9yID0gbWljcm9jb2RlX3VwZGF0ZV9jcHUoKT8KPj4gPgo+PiA+QUZBSUNUIHRo aXMgaXMgZG9uZSB0byBhdHRlbXB0IHRvIHVwZGF0ZSB0aGUgcmVtYWluaW5nIENQVXMgaWYgb25l Cj4+ID51cGRhdGUgZmFpbGVkPwo+PiAKPj4gWWVzLiBCdXQgdGhpcyBwYXRjaCBkb2Vzbid0IGNo YW5nZSB0aGUgbG9naWMgaGVyZS4gQWN0dWFsbHksIGlmIEhUIGlzCj4+IGVuYWJsZWQgYW5kIG1p Y3JvY29kZSBpcyBzaGFyZWQgYmV0d2VlbiB0aGUgbG9naWNhbCB0aHJlYWRzIG9mIHRoZSBzYW1l Cj4+IGNvcmUsIHNvIGlmIG9uZSB0aHJlYWQgdXBkYXRlcyBtaWNyb2NvZGUgc3VjY2Vzc2Z1bGx5 LCBpdHMgc2libGluZyB3b3VsZAo+PiBhbHdheXMgZmFpbCBpbiBjdXJyZW50IGxvZ2ljLiBJIGFt IHRyeWluZyB0byBleHBsYWluIHdoeSB3ZSBjYW5ub3QgYWJvcnQKPj4gdGhlIHVwZGF0ZSBldmVu IHRob3VnaCBhbiBlcnJvciBpcyBtZXQgaW4gY3VycmVudCBsb2dpYy4gSXQgZGVmaW5pdGVseQo+ PiBjYW4gYmUgc29sdmVkIGJ5IHR3ZWFraW5nIHRoZSBsb2dpYyBzbGlnaHRseS4gCj4+IAo+PiA+ Cj4+ID5JcyB0aGVyZSBhbnl3YXkgdG8gcm9sbGJhY2sgdG8gdGhlIHByZXZpb3VzIHN0YXRlIHNv IGFsbCBDUFVzIGhhdmUgdGhlCj4+ID5zYW1lIG1pY3JvY29kZT8KPj4gCj4+IFNlZW1zIGl0IGlz IG5vdCBhbGxvd2VkIHRvIGxvYWQgYSBtaWNyb2NvZGUgd2l0aCBudW1lcmF0aWNhbGx5IHNtYWxs ZXIKPj4gcmV2aXNpb24gYWNjb3JkaW5nIHRvIDkuMTEuNy4yLgo+PiAKPj4gV2l0aCBwYXRjaCA2 LCBhIHBhbmljKCkgd291bGQgYmUgdHJpZ2dlcmVkIGlmIHNvbWUgY3B1cyBmYWlsZWQgdG8gZG8g dGhlCj4+IHVwZGF0ZS4gSSBkaWRuJ3QgdHJ5IHRvIGNoYW5nZSB0aGUgbG9naWMgaGVyZS4KPj4g Cj4+ID5JIGFzc3VtZSBub3RoaW5nIGdvb2Qgd2lsbCBjb21lIG91dCBvZiBydW5uaW5nIGEKPj4g PnN5c3RlbSB3aXRoIENQVXMgdXNpbmcgZGlmZmVyZW50IG1pY3JvY29kZSB2ZXJzaW9ucywgYnV0 IG1heWJlIHRoYXQncwo+PiA+bm90IHNvIGJhZD8KPj4gCj4+IEl0IGlzIGJldHRlciB0aGF0IGFs bCBDUFVzIGhhdmUgdGhlIHNhbWUgbWljcm9jb2RlIHJldmlzaW9uLiAKPj4gCj4+IExpbnV4IGtl cm5lbCByZWplY3RzIGxhdGUgbWljcm9jb2RlIHVwZGF0ZSBpZiBmaW5kaW5nIHNvbWUgQ1BVcwo+ PiBvZmZsaW5lZC4gSSBtYXkgcG9ydCB0aGlzIHBhdGNoIHRvIFhlbiB0b28gaW4gYSBzZXBhcmF0 ZSBwYXRjaC4KPgo+V2hhdCBoYXBwZW5zIHdpdGggaG90cGx1ZyBDUFVzPwo+Cj5FdmVuIGlmIHlv dSBkaXNhYmxlIGxhdGUgbG9hZGluZyB3aGVuIHRoZXJlIGFyZSBvZmZsaW5lZCBDUFVzIHlvdQo+ c3RpbGwgbmVlZCB0byBoYW5kbGUgaG90cGx1ZyBDUFVzLCB3aGljaCBJTU8gc2hvdWxkIHNoYXJl IHRoZSBzYW1lCj5wYXRoIHdpdGggb2ZmbGluZWQgQ1BVczogdGhlIG1pY3JvY29kZSB1cGRhdGUg c2hvdWxkIGJlIGRvbmUgQVNBUAo+YWZ0ZXIgYnJpbmdpbmcgdGhlIENQVSB1cC4KPgoKSW4gbGlu dXgsIENQVSdzIGJlaW5nIG9mZmxpbmUgaXMganVzdCBhIGxvZ2ljYWwgb2ZmbGluZS4gSXQgbWF5 IHBhcnRpY2lwYXRlCmFjdGlvbnMgbGlrZSBNQ0UuIEl0IHdvdWxkIGxlYWQgdG8gYSBzaXR1YXRp b24gdGhhdCBzb21lIGNwdXMgYXJlIHVzaW5nIG9sZAptaWNyb2NvZGUgd2hpbGUgc29tZSBhcmUg dXNpbmcgdGhlIG5ldyBvbmUsIHdoaWNoIGludHJvZHVjZXMgaW5zdGFiaWxpdHkuCkNQVSBob3Rw bHVnIGRvZXNuJ3QgaGF2ZSBzdWNoIGlzc3VlLgoKPj4gPgo+PiA+PiAgICAgIGlmICggZXJyb3Ig KQo+PiA+PiAgICAgICAgICBpbmZvLT5lcnJvciA9IGVycm9yOwo+PiA+PiAgCj4+ID4+IEBAIC0y NzYsNiArMjY4LDggQEAgaW50IG1pY3JvY29kZV91cGRhdGUoWEVOX0dVRVNUX0hBTkRMRV9QQVJB TShjb25zdF92b2lkKSBidWYsIHVuc2lnbmVkIGxvbmcgbGVuKQo+PiA+PiAgewo+PiA+PiAgICAg IGludCByZXQ7Cj4+ID4+ICAgICAgc3RydWN0IG1pY3JvY29kZV9pbmZvICppbmZvOwo+PiA+PiAr ICAgIHVuc2lnbmVkIGludCBjcHUgPSBzbXBfcHJvY2Vzc29yX2lkKCk7Cj4+ID4+ICsgICAgc3Ry dWN0IHVjb2RlX2NwdV9pbmZvICp1Y2kgPSAmcGVyX2NwdSh1Y29kZV9jcHVfaW5mbywgY3B1KTsK Pj4gPj4gIAo+PiA+PiAgICAgIGlmICggbGVuICE9ICh1aW50MzJfdClsZW4gKQo+PiA+PiAgICAg ICAgICByZXR1cm4gLUUyQklHOwo+PiA+PiBAQCAtMjk0LDEwICsyODgsNiBAQCBpbnQgbWljcm9j b2RlX3VwZGF0ZShYRU5fR1VFU1RfSEFORExFX1BBUkFNKGNvbnN0X3ZvaWQpIGJ1ZiwgdW5zaWdu ZWQgbG9uZyBsZW4pCj4+ID4+ICAgICAgICAgIHJldHVybiByZXQ7Cj4+ID4+ICAgICAgfQo+PiA+ PiAgCj4+ID4+IC0gICAgaW5mby0+YnVmZmVyX3NpemUgPSBsZW47Cj4+ID4+IC0gICAgaW5mby0+ ZXJyb3IgPSAwOwo+PiA+PiAtICAgIGluZm8tPmNwdSA9IGNwdW1hc2tfZmlyc3QoJmNwdV9vbmxp bmVfbWFwKTsKPj4gPj4gLQo+PiA+PiAgICAgIGlmICggbWljcm9jb2RlX29wcy0+c3RhcnRfdXBk YXRlICkKPj4gPj4gICAgICB7Cj4+ID4+ICAgICAgICAgIHJldCA9IG1pY3JvY29kZV9vcHMtPnN0 YXJ0X3VwZGF0ZSgpOwo+PiA+PiBAQCAtMzA4LDYgKzI5OCwyNiBAQCBpbnQgbWljcm9jb2RlX3Vw ZGF0ZShYRU5fR1VFU1RfSEFORExFX1BBUkFNKGNvbnN0X3ZvaWQpIGJ1ZiwgdW5zaWduZWQgbG9u ZyBsZW4pCj4+ID4+ICAgICAgICAgIH0KPj4gPj4gICAgICB9Cj4+ID4+ICAKPj4gPj4gKyAgICBz cGluX2xvY2soJm1pY3JvY29kZV9tdXRleCk7Cj4+ID4+ICsKPj4gPj4gKyAgICByZXQgPSBtaWNy b2NvZGVfb3BzLT5jb2xsZWN0X2NwdV9pbmZvKGNwdSwgJnVjaS0+Y3B1X3NpZyk7Cj4+ID4+ICsg ICAgaWYgKCBsaWtlbHkoIXJldCkgKQo+PiA+PiArICAgICAgICByZXQgPSBtaWNyb2NvZGVfb3Bz LT5jcHVfcmVxdWVzdF9taWNyb2NvZGUoY3B1LCBpbmZvLT5idWZmZXIsIGxlbik7Cj4+ID4+ICsg ICAgZWxzZQo+PiA+PiArICAgICAgICBfX21pY3JvY29kZV9maW5pX2NwdShjcHUpOwo+PiA+PiAr Cj4+ID4+ICsgICAgc3Bpbl91bmxvY2soJm1pY3JvY29kZV9tdXRleCk7Cj4+ID4KPj4gPldoeSBk byB5b3UgbmVlZCB0byBob2xkIHRoZSBsb2NrIGhlcmU/Cj4+ID4KPj4gPm1pY3JvY29kZV91cGRh dGUgaXMgYWxyZWFkeSBzZXJpYWxpemVkIGFuZCBzaG91bGQgb25seSBiZSBleGVjdXRlZCBvbgo+ PiA+YSBDUFUgYXQgYSB0aW1lIGR1ZSB0byB0aGUgdXNhZ2Ugb2YgY2hhaW5lZAo+PiA+Y29udGlu dWVfaHlwZXJjYWxsX29uX2NwdS4KPj4gCj4+IG1pY3JvY29kZV9yZXN1bWVfY3B1KCkgYWxzbyB1 c2VzIHRoZSAndWNpJyBhbmQgdGhlIGdsb2JhbCBtaWNyb2NvZGUgY2FjaGUuCj4+IFRoaXMgbG9j ayBpcyB0byBwcmV2ZW50IHRoZW0gaGFwcGVuaW5nIHNpbXVsdGFuZW91c2x5IChzb21lb25lIGlz Cj4+IGFkZGluZy9yZXBsYWNpbmcgZW50cmllcyB0byBhIGxpc3QgYW5kIGFub3RoZXIgaXMgcmVh ZGluZyB0aGUgbGlzdCkuCj4+IEFsbCBleGlzdGluZyBjYWxsIHNpdGVzIG9mIGNvbGxlY19jcHVf aW5mbygpIGFuZCBjcHVfcmVxdWVzdF9taWNyb2NvZGUoKQo+PiBhcmUgcHJvdGVjdGVkIHdpdGgg dGhpcyBsb2NrLgo+Cj5JIG1lYW4sIHRoZXJlIHNob3VsZCBiZSBzb21lIGtpbmQgb2YgcHJvdGVj dGlvbiB0byBwcmV2ZW50IHRoZSBsaXN0Cj5mcm9tIGNoYW5naW5nIGF0IGFsbCB3aGlsZSB0aGVy ZSdzIGFuIHVwZGF0ZSBpbiBwcm9ncmVzcywgb3IgZWxzZSB5b3UKPnJpc2sgdXNpbmcgZGlmZmVy ZW50IHZlcnNpb25zIGZvciBkaWZmZXJlbnQgQ1BVcyBpZiB0aGVyZSdzIGEgbGlzdAo+YWRkaXRp b24gd2hpbGUgYSBtaWNyb2NvZGUgdXBkYXRlIGlzIGluIHByb2dyZXNzPwoKQm90aCBhZGRpbmcg dG8gYW5kIHVzaW5nIHRoZSBtaWNyb2NvZGUgY2FjaGUgYXJlIGRvbmUgd2l0aAptaWNyb2NvZGVf bXV0ZXggaGVsZC4gU28gSSBkb24ndCB0aGluayBpdCBjYW4gaGFwcGVuLgoKVGhhbmtzCkNoYW8K Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZl bCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlz dHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=