From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peng Fan Subject: Re: [PATCH] xen/arm: setup: initialize xenheap mappings after boot pages avaiable Date: Tue, 31 May 2016 17:58:37 +0800 Message-ID: <20160531095834.GA10141@linux-7smt.suse> References: <1464327119-6242-1-git-send-email-van.freenix@gmail.com> <567844c6-6b60-6d7b-2f0c-5c940f4f7350@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <567844c6-6b60-6d7b-2f0c-5c940f4f7350@arm.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Julien Grall Cc: sstabellini@kernel.org, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org SGkgSnVsaWVuLAoKT24gTW9uLCBNYXkgMzAsIDIwMTYgYXQgMTA6NTM6MjRQTSArMDEwMCwgSnVs aWVuIEdyYWxsIHdyb3RlOgo+SGkgUGVuZywKPgo+T24gMjcvMDUvMjAxNiAwNjozMSwgUGVuZyBG YW4gd3JvdGU6Cj4+VG8gQVJNNjQsIHNldHVwX3hlbmhlYXBfbWFwcGluZ3MgbWF5IGNhbGwgYWxs b2NfYm9vdF9wYWdlcyB0byBhbGxvY2F0ZQo+PmZpcnN0IGxldmVsIHBhZ2UgdGFibGUsIGlmIHRo ZXJlIGlzIGEgYmlnIGNodW5rIG1lbW9yeSAoaWUsID41MTJHQikuCj4KPk91dCBvZiBpbnRlcmVz dCwgaGF2ZSB5b3UgZm91bmQgdGhlIGJ1ZyBieSB0ZXN0aW5nIFhlbiBvbiBhIHBsYXRmb3JtIHdp dGgKPjUxMkdCIG9mIFJBTT8gOikKCkFjdHVhbGx5IG5vdC4gTXkgYm9hcmQgZG9lcyBub3QgaGF2 ZSBzbyBsYXJnZSBtZW1vcnkuIFdoZW4gSSBhbSByZWFkaW5nCnRoZSBwaWVjZSBjb2RlLCBJIHRo aW5rIHRoZXJlIGlzIHBvc3NpYmlsaXR5IHRoYXQgc2V0dXBfeGVuaGVhcF9tYXBwaW5ncwptYXkg bmVlZCBib290IHBhZ2VzLCBidXQgYm9vdCBwYWdlcyBhcmUgbm90IHJlYWR5LgoKPgo+PlNvLCBu ZWVkIHRvIG1ha2Ugc3VyZSBib290IHBhZ2VzIGFyZSByZWFkeSBiZWZvcmUgc2V0dXAgeGVuaGVh cCBtYXBwaW5ncy4KPgo+aW5pdF9ib290X3BhZ2VzIGlzIHVzaW5nIG1mbl90b192aXJ0IChzZWUg Ym9vdG1lbV9yZWdpb25fYWRkKSwgd2hpY2ggY2Fubm90Cj53b3JrIHVudGlsIHhlbmhlYXBfbWZu X3N0YXJ0IGlzIGluaXRpYWxpemVkLiBUaGlzIGlzIGRvbmUgYnkKPnNldHVwX3hlbmhlYXBfbWFw cGluZ3MuCgpNeSBiYWQuIEkgZGlkIG5vdCBjYXRjaCB0aGlzIHBvaW50LiBUaGFua3MgZm9yIGNv cnJlY3RpbmcgbWUuCgo+Cj5JIHdvdWxkIGJlIGhhcHB5IHRvIGdpdmUgeW91IGhpbnQgb24gaG93 IHRvIHNvbHZlIHRoaXMsIGJ1dCBJIGFtIG5vdCBzdXJlIHRvCj5mdWxseSB1bmRlcnN0YW5kIHlv dXIgaXNzdWUuIENhbiB5b3UgZ2l2ZSBtb3JlIGRldGFpbHM/CgpJIGRpZCBub3QgbWV0IGlzc3Vl IG9uIG15IHBsYXRmb3JtLiBJIGp1c3QgdGhpbmsgdGhlIGxvZ2ljIG9mIHRoaXMgcGllY2UgY29k ZQptYXkgY2F1c2UgZXJyb3JzIG9uIHBsYXRmb3JtIHdpdGggbGFyZ2UgbWVtb3J5ICg+NTEyR0Ip LgoKSG93IGFib3V0IHRoZSBmb2xsb3dpbmcgcGF0Y2g/CkZpcnN0IGxvb3AgYWxsIHRoZSBtZW1v cnkgYmFua3MgYW5kIGNhbGN1bGF0ZSByYW1fc2l6ZS9yYW1fc3RhcnQvcmFtX2VuZCwKdGhlbiBz ZXQgeGVuaGVhcF92aXJ0X2VuZC9zdGFydCBhbmQgeGVuaGVhcF9tZm5fZW5kLgpOb3cgcmVhZGx5 IGZvciBpbml0IGJvb3QgcGFnZXMgYW5kIHNldHVwX3hlbmhlYXBfbWFwcGluZ3MuCgpkaWZmIC0t Z2l0IGEveGVuL2FyY2gvYXJtL3NldHVwLmMgYi94ZW4vYXJjaC9hcm0vc2V0dXAuYwppbmRleCBk Y2IyM2I3Li5kM2EzYWYzIDEwMDY0NAotLS0gYS94ZW4vYXJjaC9hcm0vc2V0dXAuYworKysgYi94 ZW4vYXJjaC9hcm0vc2V0dXAuYwpAQCAtNjM1LDEzICs2MzUsMjQgQEAgc3RhdGljIHZvaWQgX19p bml0IHNldHVwX21tKHVuc2lnbmVkIGxvbmcgZHRiX3BhZGRyLCBzaXplX3QgZHRiX3NpemUpCiAg ICAgICAgIHBhZGRyX3QgYmFua19zdGFydCA9IGJvb3RpbmZvLm1lbS5iYW5rW2JhbmtdLnN0YXJ0 OwogICAgICAgICBwYWRkcl90IGJhbmtfc2l6ZSA9IGJvb3RpbmZvLm1lbS5iYW5rW2JhbmtdLnNp emU7CiAgICAgICAgIHBhZGRyX3QgYmFua19lbmQgPSBiYW5rX3N0YXJ0ICsgYmFua19zaXplOwot ICAgICAgICBwYWRkcl90IHMsIGU7CiAKICAgICAgICAgcmFtX3NpemUgPSByYW1fc2l6ZSArIGJh bmtfc2l6ZTsKICAgICAgICAgcmFtX3N0YXJ0ID0gbWluKHJhbV9zdGFydCxiYW5rX3N0YXJ0KTsK ICAgICAgICAgcmFtX2VuZCA9IG1heChyYW1fZW5kLGJhbmtfZW5kKTsKKyAgICB9CiAKLSAgICAg ICAgc2V0dXBfeGVuaGVhcF9tYXBwaW5ncyhiYW5rX3N0YXJ0Pj5QQUdFX1NISUZULCBiYW5rX3Np emU+PlBBR0VfU0hJRlQpOworICAgIHRvdGFsX3BhZ2VzICs9IHJhbV9zaXplID4+IFBBR0VfU0hJ RlQ7CisKKyAgICB4ZW5oZWFwX3ZpcnRfZW5kID0gWEVOSEVBUF9WSVJUX1NUQVJUICsgcmFtX2Vu ZCAtIHJhbV9zdGFydDsKKyAgICB4ZW5oZWFwX21mbl9zdGFydCA9IHJhbV9zdGFydCA+PiBQQUdF X1NISUZUOworICAgIHhlbmhlYXBfbWZuX2VuZCA9IHJhbV9lbmQgPj4gUEFHRV9TSElGVDsKKwor ICAgIGZvciAoIGJhbmsgPSAwIDsgYmFuayA8IGJvb3RpbmZvLm1lbS5ucl9iYW5rczsgYmFuaysr ICkKKyAgICB7CisgICAgICAgIHBhZGRyX3QgYmFua19zdGFydCA9IGJvb3RpbmZvLm1lbS5iYW5r W2JhbmtdLnN0YXJ0OworICAgICAgICBwYWRkcl90IGJhbmtfc2l6ZSA9IGJvb3RpbmZvLm1lbS5i YW5rW2JhbmtdLnNpemU7CisgICAgICAgIHBhZGRyX3QgYmFua19lbmQgPSBiYW5rX3N0YXJ0ICsg YmFua19zaXplOworICAgICAgICBwYWRkcl90IHMsIGU7CiAKICAgICAgICAgcyA9IGJhbmtfc3Rh cnQ7CiAgICAgICAgIHdoaWxlICggcyA8IGJhbmtfZW5kICkKQEAgLTY1OCwxOCArNjY5LDEyIEBA IHN0YXRpYyB2b2lkIF9faW5pdCBzZXR1cF9tbSh1bnNpZ25lZCBsb25nIGR0Yl9wYWRkciwgc2l6 ZV90IGR0Yl9zaXplKQogICAgICAgICAgICAgaWYgKCBlID4gYmFua19lbmQgKQogICAgICAgICAg ICAgICAgIGUgPSBiYW5rX2VuZDsKIAotICAgICAgICAgICAgeGVuaGVhcF9tZm5fZW5kID0gZTsK LQogICAgICAgICAgICAgZHRfdW5yZXNlcnZlZF9yZWdpb25zKHMsIGUsIGluaXRfYm9vdF9wYWdl cywgMCk7CiAgICAgICAgICAgICBzID0gbjsKICAgICAgICAgfQotICAgIH0KLQotICAgIHRvdGFs X3BhZ2VzICs9IHJhbV9zaXplID4+IFBBR0VfU0hJRlQ7CiAKLSAgICB4ZW5oZWFwX3ZpcnRfZW5k ID0gWEVOSEVBUF9WSVJUX1NUQVJUICsgcmFtX2VuZCAtIHJhbV9zdGFydDsKLSAgICB4ZW5oZWFw X21mbl9zdGFydCA9IHJhbV9zdGFydCA+PiBQQUdFX1NISUZUOwotICAgIHhlbmhlYXBfbWZuX2Vu ZCA9IHJhbV9lbmQgPj4gUEFHRV9TSElGVDsKKyAgICAgICAgc2V0dXBfeGVuaGVhcF9tYXBwaW5n cyhiYW5rX3N0YXJ0Pj5QQUdFX1NISUZULCBiYW5rX3NpemU+PlBBR0VfU0hJRlQpOworICAgIH0K IAogICAgIC8qCiAgICAgICogTmVlZCBlbm91Z2ggbWFwcGVkIHBhZ2VzIGZvciBjb3B5aW5nIHRo ZSBEVEIuCgpUaGFua3MsClBlbmcuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4u b3JnCmh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=