From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: [PATCH] xen/vPMU: Do not clobber IA32_MISC_ENABLE Date: Mon, 7 Mar 2016 14:58:22 +0000 Message-ID: <56DD970E.9040704@citrix.com> References: <1457360841-28587-1-git-send-email-andrew.cooper3@citrix.com> <56DD941E.2000008@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <56DD941E.2000008@oracle.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Boris Ostrovsky , Xen-devel Cc: Jan Beulich List-Id: xen-devel@lists.xenproject.org T24gMDcvMDMvMTYgMTQ6NDUsIEJvcmlzIE9zdHJvdnNreSB3cm90ZToKPiBPbiAwMy8wNy8yMDE2 IDA5OjI3IEFNLCBBbmRyZXcgQ29vcGVyIHdyb3RlOgo+PiBUaGUgVk1YIFJETVNSIGludGVyY2Vw dCBmb3IgTVNSX0lBMzJfTUlTQ19FTkFCTEUgZmFsbHMgdGhyb3VnaCBpbnRvCj4+IHZwbXVfZG9f cmRtc3IoKSwgc28gdGhhdCBjb3JlMl92cG11X2RvX3JkbXNyKCkgbWF5IHBsYXkgd2l0aCB0aGUg UFRTCj4+IGFuZCBQRUJTCj4+IFVOQVZBSUwgYml0cy4KPj4KPj4gU29tZSA2NGJpdCBXaW5kb3dz IGluY2x1ZGUgSUEzMl9NSVNDX0VOQUJMRSBpbiB0aGUgc2V0IG9mIGl0ZW1zCj4+IGNoZWNrZWQg YnkKPj4gUGF0Y2hHdWFyZCwgYW5kIHdpbGwgc3VmZmVyIGEgQlNPRCAweDEwOQo+PiBDUklUSUNB TF9TVFJVQ1RVUkVfQ09SUlVQVElPTiBpZiB0aGUKPj4gY29udGVudHMgY2hhbmdlIG9uIG1pZ3Jh dGUuCj4+Cj4+IFRoZSB2UE1VIGluZnJhc3RydWN0dXJlIHNob3VsZCBub3QgY2xvYmJlciBJQTMy X01JU0NfRU5BQkxFIGF0IGFsbC4KPj4KPj4gU2lnbmVkLW9mZi1ieTogQW5kcmV3IENvb3BlciA8 YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4KPj4gLS0tCj4+IENDOiBKYW4gQmV1bGljaCA8SkJl dWxpY2hAc3VzZS5jb20+Cj4+IENDOiBCb3JpcyBPc3Ryb3Zza3kgPGJvcmlzLm9zdHJvdnNreUBv cmFjbGUuY29tPgo+Pgo+PiBUaGlzIGFwcGVhcnMgdG8gaGF2ZSBiZWVuIGJyb2tlbiBzaW5jZSB0 aGUgdlBNVSBjb2RlIHdhcyBmaXJzdAo+PiBpbnRyb2R1Y2VkLiAgSXQKPj4gYXBwZWFycyB0byBo YXZlIGx1cmtlZCB0aGlzIGxvZyBkdWUgdG8gYSBob2xlIChub3cgZml4ZWQpIGluIFhlblNlcnZl cnMKPj4gdXBncmFkZSB0ZXN0aW5nLiAgVGhlIEJTT0RzIG9jY3VyIH44MCUgb2YgdGhlIHRpbWUg b24gV2luIDggdGhydSAxMCwgYnV0Cj4+IGFwcGVhciB2ZXJ5IGhhcmQgdG8gcHJvdm9rZSBvbiBX aW5kb3dzIDcuCj4+Cj4+IFRoaXMgTVNSIHN0aWxsIGxlYWtzIG1vc3RseSBob3N0IHN0YXRlIHRo cm91Z2ggaW50byB0aGUgZ3Vlc3QuIAo+PiBUaGVyZWZvcmUKPj4gbWlncmF0aW9uIG9mIHdpbmRv d3MgaXMgc3RpbGwgbGlhYmxlIHRvIGNyYXNoIGlmIG1vdmluZyBiZXR3ZWVuIHR3bwo+PiBub24t aWRlbnRpY2FsIHNlcnZlcnMuICBJIG5lZWQgdG8gZ2V0IHByb3BlciBNU1IgbGV2ZWxsaW5nIHNv cnRlZAo+PiBiZWZvcmUgdGhpcwo+PiBpc3N1ZSBjYW4gYmUgcmVzb2x2ZWQgZnVsbHkuCj4+IC0t LQo+PiAgIHhlbi9hcmNoL3g4Ni9jcHUvdnBtdS5jIHwgMiArLQo+PiAgIDEgZmlsZSBjaGFuZ2Vk LCAxIGluc2VydGlvbigrKSwgMSBkZWxldGlvbigtKQo+Pgo+PiBkaWZmIC0tZ2l0IGEveGVuL2Fy Y2gveDg2L2NwdS92cG11LmMgYi94ZW4vYXJjaC94ODYvY3B1L3ZwbXUuYwo+PiBpbmRleCAyMzdi NWZmLi4yZjlkZGY2IDEwMDY0NAo+PiAtLS0gYS94ZW4vYXJjaC94ODYvY3B1L3ZwbXUuYwo+PiAr KysgYi94ZW4vYXJjaC94ODYvY3B1L3ZwbXUuYwo+PiBAQCAtMTY5LDcgKzE2OSw3IEBAIGludCB2 cG11X2RvX21zcih1bnNpZ25lZCBpbnQgbXNyLCB1aW50NjRfdAo+PiAqbXNyX2NvbnRlbnQsCj4+ ICAgICAgIHJldHVybiByZXQ7Cj4+ICAgICAgbm9wOgo+PiAtICAgIGlmICggIWlzX3dyaXRlICkK Pj4gKyAgICBpZiAoICFpc193cml0ZSAmJiAobXNyICE9IE1TUl9JQTMyX01JU0NfRU5BQkxFKSAp Cj4+ICAgICAgICAgICAqbXNyX2NvbnRlbnQgPSAwOwo+PiAgICAgICAgIHJldHVybiAwOwo+Cj4K PiBUaGlzIGlzIEludGVsLXNwZWNpZmljIHJlZ2lzdGVyIHNvIHRoZSB0ZXN0IHNob3VsZCByZWFs bHkgYmUgaGFwcGVuaW5nCj4gaW4gdnBtdV9pbnRlbC5jLiBPZiBjb3Vyc2UgdGhlbiB5b3UnZCBu ZWVkIHRvIGFsd2F5cyBkZXJlZmVyZW5jZQo+IHZjcHVfdnBtdSgpIGFuZCBwb3NzaWJseSBhZGQg bW9yZSBjaGVja3MgdG8gcmVhZC93cml0ZSBvcHMgKHRvIG1pcnJvcgo+IHRoZSBvbmUgYXQgdGhl IHRvcCBvZiB2cG11X2RvX21zcigpKS4KPgo+IFNvIG1heWJlIGF0IGxlYXN0IGhhdmUgdGhlIHZl bmRvciBjaGVjayB0b28/PwoKU3RyaWN0bHkgc3BlYWtpbmcsIGlmIHdlIHdlcmUgdG8gZG8gYSB2 ZW5kb3IgY2hlY2ssIGl0IHNob3VsZCBiZSBhIGd1ZXN0CnZlbmRvciBjaGVjaywgbm90IGEgaG9z dCB2ZW5kb3IgY2hlY2suCgpPVE9ILCB3ZSB3b24ndCBnZXQgaGVyZSBvbiBhIG5vbi1JbnRlbCBo b3N0IHN5c3RlbSwgYW5kIGVtdWxhdGluZyBhCmNyb3NzLXZlbmRvciB2UE1VIGlzIGdvaW5nIHRv IGVuZCBpbiBkaXNhc3Rlci4gIEkgcGVyc29uYWxseSBkb24ndCB0aGluawppdHMgd29ydGggaXQu Cgp+QW5kcmV3CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHA6Ly9s aXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=