From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ross Lagerwall Subject: [PATCH] vmx: Restore debug registers when injecting #DB traps Date: Fri, 11 Mar 2016 14:51:31 +0000 Message-ID: <1457707891-20044-1-git-send-email-ross.lagerwall@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: xen-devel@lists.xen.org Cc: Ross Lagerwall , Kevin Tian , Jan Beulich , Jun Nakajima , Andrew Cooper List-Id: xen-devel@lists.xenproject.org Q29tbWl0IGE5MjliZWUwZTY1MiAoIng4Ni92bXg6IEZpeCBpbmplY3Rpb24gb2YgI0RCIHRyYXBz IGZvbGxvd2luZwpYU0EtMTU2IikgcHJldmVudHMgYW4gaW5maW5pdGUgbG9vcCBpbiBjZXJ0YWlu ICNEQiB0cmFwcy4gSG93ZXZlciwgaXQKY2hhbmdlZCB0aGUgYmVoYXZpb3IgdG8gbm90IGNhbGwg aHZtX2h3X2luamVjdF90cmFwKCkgZm9yICNEQiBhbmQgI0FDCnRyYXBzIHdoaWNoIHdoaWNoIG1l YW5zIHRoYXQgdGhlIGRlYnVnIHJlZ2lzdGVycyBhcmUgbm90IHJlc3RvcmVkCmNvcnJlY3RseSBh bmQgbnVsbGlmaWVkIGNvbW1pdCBiNTZhZTViNDhjMzggKCJWTVg6IGZpeC9hZGp1c3QgdHJhcApp bmplY3Rpb24iKS4KClRvIGZpeCB0aGlzLCByZXN0b3JlIHRoZSBvcmlnaW5hbCBjb2RlIHBhdGgg dGhyb3VnaCBodm1faW5qZWN0X3RyYXAoKSwKYnV0IGVuc3VyZSB0aGF0IHRoZSBzdHJ1Y3QgaHZt X3RyYXAgaXMgcG9wdWxhdGVkIHdpdGggYWxsIHRoZSByZXF1aXJlZApkYXRhLgoKU2lnbmVkLW9m Zi1ieTogUm9zcyBMYWdlcndhbGwgPHJvc3MubGFnZXJ3YWxsQGNpdHJpeC5jb20+Ci0tLQogeGVu L2FyY2gveDg2L2h2bS92bXgvdm14LmMgfCAyNSArKysrKysrKysrKystLS0tLS0tLS0tLS0tCiAx IGZpbGUgY2hhbmdlZCwgMTIgaW5zZXJ0aW9ucygrKSwgMTMgZGVsZXRpb25zKC0pCgpkaWZmIC0t Z2l0IGEveGVuL2FyY2gveDg2L2h2bS92bXgvdm14LmMgYi94ZW4vYXJjaC94ODYvaHZtL3ZteC92 bXguYwppbmRleCA5YzVhMzg4Li4xZWRkYmE1IDEwMDY0NAotLS0gYS94ZW4vYXJjaC94ODYvaHZt L3ZteC92bXguYworKysgYi94ZW4vYXJjaC94ODYvaHZtL3ZteC92bXguYwpAQCAtMzA5MSwyNCAr MzA5MSwyMyBAQCBzdGF0aWMgaW50IHZteF9oYW5kbGVfZW9pX3dyaXRlKHZvaWQpCiAgKiBJdCBp cyB0aGUgY2FsbGVycyByZXNwb25zaWJpbGl0eSB0byBlbnN1cmUgdGhhdCB0aGlzIGZ1bmN0aW9u IGlzIG9ubHkgdXNlZAogICogaW4gdGhlIGNvbnRleHQgb2YgYW4gYXBwcm9wcmlhdGUgdm1leGl0 LgogICovCi1zdGF0aWMgdm9pZCB2bXhfcHJvcGFnYXRlX2ludHIodm9pZCkKK3N0YXRpYyB2b2lk IHZteF9wcm9wYWdhdGVfaW50cih1bnNpZ25lZCBsb25nIGludHIpCiB7Ci0gICAgdW5zaWduZWQg bG9uZyBpbnRyLCB0bXA7Ci0KLSAgICBfX3ZtcmVhZChWTV9FWElUX0lOVFJfSU5GTywgJmludHIp OwotCi0gICAgQVNTRVJUKGludHIgJiBJTlRSX0lORk9fVkFMSURfTUFTSyk7Ci0KLSAgICBfX3Zt d3JpdGUoVk1fRU5UUllfSU5UUl9JTkZPLCBpbnRyKTsKKyAgICBzdHJ1Y3QgaHZtX3RyYXAgdHJh cCA9IHsKKyAgICAgICAgLnZlY3RvciA9IGludHIgJiBJTlRSX0lORk9fVkVDVE9SX01BU0ssCisg ICAgICAgIC50eXBlID0gTUFTS19FWFRSKGludHIsIElOVFJfSU5GT19JTlRSX1RZUEVfTUFTSykg fTsKKyAgICB1bnNpZ25lZCBsb25nIHRtcDsKIAogICAgIGlmICggaW50ciAmIElOVFJfSU5GT19E RUxJVkVSX0NPREVfTUFTSyApCiAgICAgewogICAgICAgICBfX3ZtcmVhZChWTV9FWElUX0lOVFJf RVJST1JfQ09ERSwgJnRtcCk7Ci0gICAgICAgIF9fdm13cml0ZShWTV9FTlRSWV9FWENFUFRJT05f RVJST1JfQ09ERSwgdG1wKTsKKyAgICAgICAgdHJhcC5lcnJvcl9jb2RlID0gdG1wOwogICAgIH0K LQorICAgIGVsc2UKKyAgICAgICAgdHJhcC5lcnJvcl9jb2RlID0gSFZNX0RFTElWRVJfTk9fRVJS T1JfQ09ERTsKICAgICBfX3ZtcmVhZChWTV9FWElUX0lOU1RSVUNUSU9OX0xFTiwgJnRtcCk7Ci0g ICAgX192bXdyaXRlKFZNX0VOVFJZX0lOU1RSVUNUSU9OX0xFTiwgdG1wKTsKKyAgICB0cmFwLmlu c25fbGVuID0gdG1wOworICAgIGh2bV9pbmplY3RfdHJhcCgmdHJhcCk7CiB9CiAKIHN0YXRpYyB2 b2lkIHZteF9pZHR2X3JlaW5qZWN0KHVuc2lnbmVkIGxvbmcgaWR0dl9pbmZvKQpAQCAtMzM2Niw3 ICszMzY1LDcgQEAgdm9pZCB2bXhfdm1leGl0X2hhbmRsZXIoc3RydWN0IGNwdV91c2VyX3JlZ3Mg KnJlZ3MpCiAgICAgICAgICAgICBIVk1UUkFDRV8xRChUUkFQX0RFQlVHLCBleGl0X3F1YWxpZmlj YXRpb24pOwogICAgICAgICAgICAgd3JpdGVfZGVidWdyZWcoNiwgZXhpdF9xdWFsaWZpY2F0aW9u IHwgRFJfU1RBVFVTX1JFU0VSVkVEX09ORSk7CiAgICAgICAgICAgICBpZiAoICF2LT5kb21haW4t PmRlYnVnZ2VyX2F0dGFjaGVkICkKLSAgICAgICAgICAgICAgICB2bXhfcHJvcGFnYXRlX2ludHIo KTsKKyAgICAgICAgICAgICAgICB2bXhfcHJvcGFnYXRlX2ludHIoaW50cl9pbmZvKTsKICAgICAg ICAgICAgIGVsc2UKICAgICAgICAgICAgICAgICBkb21haW5fcGF1c2VfZm9yX2RlYnVnZ2VyKCk7 CiAgICAgICAgICAgICBicmVhazsKQEAgLTM0MzcsNyArMzQzNiw3IEBAIHZvaWQgdm14X3ZtZXhp dF9oYW5kbGVyKHN0cnVjdCBjcHVfdXNlcl9yZWdzICpyZWdzKQogICAgICAgICAgICAgYnJlYWs7 CiAgICAgICAgIGNhc2UgVFJBUF9hbGlnbm1lbnRfY2hlY2s6CiAgICAgICAgICAgICBIVk1UUkFD RV8xRChUUkFQLCB2ZWN0b3IpOwotICAgICAgICAgICAgdm14X3Byb3BhZ2F0ZV9pbnRyKCk7Cisg ICAgICAgICAgICB2bXhfcHJvcGFnYXRlX2ludHIoaW50cl9pbmZvKTsKICAgICAgICAgICAgIGJy ZWFrOwogICAgICAgICBjYXNlIFRSQVBfbm1pOgogICAgICAgICAgICAgaWYgKCBNQVNLX0VYVFIo aW50cl9pbmZvLCBJTlRSX0lORk9fSU5UUl9UWVBFX01BU0spICE9Ci0tIAoyLjQuMwoKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWls aW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVu LWRldmVsCg==