From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: [PATCH 3/5] x86/time: Rework pv_soft_rdtsc() to aid further cleanup Date: Tue, 20 Feb 2018 16:07:43 +0000 Message-ID: <7efa9da1-6d52-191c-8d66-f514367fbe7d@citrix.com> References: <1519127923-23539-1-git-send-email-andrew.cooper3@citrix.com> <1519127923-23539-4-git-send-email-andrew.cooper3@citrix.com> <20180220160410.eflio5njxew33flg@MacBook-Pro-de-Roger.local> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20180220160410.eflio5njxew33flg@MacBook-Pro-de-Roger.local> Content-Language: en-GB List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Cc: Wei Liu , Jan Beulich , Xen-devel List-Id: xen-devel@lists.xenproject.org T24gMjAvMDIvMTggMTY6MDQsIFJvZ2VyIFBhdSBNb25uw6kgd3JvdGU6Cj4gT24gVHVlLCBGZWIg MjAsIDIwMTggYXQgMTE6NTg6NDFBTSArMDAwMCwgQW5kcmV3IENvb3BlciB3cm90ZToKPj4gSGF2 aW5nIHB2X3NvZnRfcmR0c2MoKSBlbXVsYXRlIGFsbCBwYXJ0cyBvZiBhbiByZHRzY3AgaXMgYXdr d2FyZCwgYW5kIGdldHMgaW4KPj4gdGhlIHdheSBvZiBzb21lIGludGVuZGVkIGNsZWFudXAuCj4+ Cj4+ICAqIERyb3AgdGhlIHJkdHNjcCBwYXJhbWV0ZXIgYW5kIGFsd2F5cyBtYWtlIHRoZSBjYWxs ZXIgcmVzcG9uc2libGUgZm9yIGVjeAo+PiAgICB1cGRhdGVzIHdoZW4gYXBwcm9wcmlhdGUuCj4+ ICAqIFN3aXRjaCB0aGUgZnVuY3Rpb24gZnJvbSBiZWluZyB2b2lkLCBhbmQgcmV0dXJuIHRoZSBt YWluIHRpbWVzdGFtcCBpbiB0aGUKPj4gICAgcmV0dXJuIHZhbHVlLgo+Pgo+PiBUaGUgcmVncyBw YXJhbWV0ZXIgaXMgc3RpbGwgbmVlZGVkLCBidXQgb25seSBmb3IgdGhlIHN0YXRzIGNvbGxlY3Rp b24sIG9uY2UKPj4gYWdhaW4gYnJpbmdpbmcgaW50byBxdWVzdGlvbiB0aGVpciB1dGlsaXR5LiAg VGhlIHBhcmFtZXRlciBjYW4gaG93ZXZlciBzd2l0Y2gKPj4gdG8gYmVpbmcgY29uc3QuCj4+Cj4+ IE5vIGZ1bmN0aW9uYWwgY2hhbmdlLgo+Pgo+PiBTaWduZWQtb2ZmLWJ5OiBBbmRyZXcgQ29vcGVy IDxhbmRyZXcuY29vcGVyM0BjaXRyaXguY29tPgo+PiAtLS0KPj4gQ0M6IEphbiBCZXVsaWNoIDxK QmV1bGljaEBzdXNlLmNvbT4KPj4gQ0M6IFdlaSBMaXUgPHdlaS5saXUyQGNpdHJpeC5jb20+Cj4+ IENDOiBSb2dlciBQYXUgTW9ubsOpIDxyb2dlci5wYXVAY2l0cml4LmNvbT4KPj4gQ0M6IEtvbnJh ZCBSemVzenV0ZWsgV2lsayA8a29ucmFkLndpbGtAb3JhY2xlLmNvbT4KPj4gLS0tCj4+ICB4ZW4v YXJjaC94ODYvcHYvZW11bC1pbnYtb3AuYyAgfCAgNyArKysrKystCj4+ICB4ZW4vYXJjaC94ODYv cHYvZW11bC1wcml2LW9wLmMgfCAxMiArKysrKysrKy0tLS0KPj4gIHhlbi9hcmNoL3g4Ni90aW1l LmMgICAgICAgICAgICB8ICA4ICsrLS0tLS0tCj4+ICB4ZW4vaW5jbHVkZS9hc20teDg2L3RpbWUu aCAgICAgfCAgMiArLQo+PiAgNCBmaWxlcyBjaGFuZ2VkLCAxNyBpbnNlcnRpb25zKCspLCAxMiBk ZWxldGlvbnMoLSkKPj4KPj4gZGlmZiAtLWdpdCBhL3hlbi9hcmNoL3g4Ni9wdi9lbXVsLWludi1v cC5jIGIveGVuL2FyY2gveDg2L3B2L2VtdWwtaW52LW9wLmMKPj4gaW5kZXggZjg5NDQxNy4uYjE5 MTZiNCAxMDA2NDQKPj4gLS0tIGEveGVuL2FyY2gveDg2L3B2L2VtdWwtaW52LW9wLmMKPj4gKysr IGIveGVuL2FyY2gveDg2L3B2L2VtdWwtaW52LW9wLmMKPj4gQEAgLTQ2LDYgKzQ2LDcgQEAgc3Rh dGljIGludCBlbXVsYXRlX2ludmFsaWRfcmR0c2NwKHN0cnVjdCBjcHVfdXNlcl9yZWdzICpyZWdz KQo+PiAgICAgIGNoYXIgb3Bjb2RlWzNdOwo+PiAgICAgIHVuc2lnbmVkIGxvbmcgZWlwLCByYzsK Pj4gICAgICBzdHJ1Y3QgdmNwdSAqdiA9IGN1cnJlbnQ7Cj4+ICsgICAgc3RydWN0IGRvbWFpbiAq Y3VycmQgPSB2LT5kb21haW47Cj4gY29uc3Q/Cj4KPj4gIAo+PiAgICAgIGVpcCA9IHJlZ3MtPnJp cDsKPj4gICAgICBpZiAoIChyYyA9IGNvcHlfZnJvbV91c2VyKG9wY29kZSwgKGNoYXIgKillaXAs IHNpemVvZihvcGNvZGUpKSkgIT0gMCApCj4+IEBAIC01Niw3ICs1NywxMSBAQCBzdGF0aWMgaW50 IGVtdWxhdGVfaW52YWxpZF9yZHRzY3Aoc3RydWN0IGNwdV91c2VyX3JlZ3MgKnJlZ3MpCj4+ICAg ICAgaWYgKCBtZW1jbXAob3Bjb2RlLCAiXHhmXHgxXHhmOSIsIHNpemVvZihvcGNvZGUpKSApCj4+ ICAgICAgICAgIHJldHVybiAwOwo+PiAgICAgIGVpcCArPSBzaXplb2Yob3Bjb2RlKTsKPj4gLSAg ICBwdl9zb2Z0X3JkdHNjKHYsIHJlZ3MsIDEpOwo+PiArCj4+ICsgICAgbXNyX3NwbGl0KHJlZ3Ms IHB2X3NvZnRfcmR0c2ModiwgcmVncykpOwo+PiArICAgIHJlZ3MtPnJjeCA9ICgoY3VycmQtPmFy Y2gudHNjX21vZGUgPT0gVFNDX01PREVfUFZSRFRTQ1ApCj4+ICsgICAgICAgICAgICAgICAgID8g Y3VycmQtPmFyY2guaW5jYXJuYXRpb24gOiAwKTsKPiBJbiB0aGUgcHJldmlvdXMgcGF0Y2ggeW91 IHVzZSB0aGUgc2FtZSBleHByZXNzaW9uIHdpdGhvdXQgYW55Cj4gcGFyZW50aGVzZXMuIEkgdGhp bmsgSSBwcmVmZXIgdGhlIHZlcnNpb24gd2l0aG91dCBwYXJlbnRoZXNlcy4gSSBhbHNvCj4gd29u ZGVyIHdoZXRoZXIgaXQgd291bGQgbWFrZSBzZW5zZSB0byB0dXJuIHRoaXMgaW50byBhIG1hY3Jv IChzZWVpbmcKPiBpdCBiZWluZyB1c2VkIGluIHRoZSBwcmV2aW91cyBwYXRjaCBhbmQgYWxzbyBm dXJ0aGVyIGJlbG93KS4KPgo+IFdpdGggdGhvc2UgZml4ZWQgKGlmIGFwcGxpY2FibGUpOgoKTm9u ZSBvZiB0aGVtIHN1cnZpdmUgcGF0Y2ggNSBpbiB0aGUgc2VyaWVzLsKgIEknbGwgZml4IHRoZSBm b3JtYXR0aW5nLApidXQgSSdtIG5vdCBnb2luZyB0byBtYWNyby1pc2UgYW55dGhpbmcuCgo+Cj4g UmV2aWV3ZWQtYnk6IFJvZ2VyIFBhdSBNb25uw6kgPHJvZ2VyLnBhdUBjaXRyaXguY29tPgo+Cj4g VGhhbmtzLCBSb2dlci4KCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0 Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRl dmVs