From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: [PATCH v7 7/8] xen/arm: export shared memory regions as reserved-memory on device tree Date: Fri, 10 Aug 2018 17:00:15 -0700 Message-ID: <1533945616-14915-7-git-send-email-sstabellini@kernel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: xen-devel@lists.xen.org Cc: Stefano Stabellini , sstabellini@kernel.org, wei.liu2@citrix.com, blackskygg@gmail.com, ian.jackson@eu.citrix.com, julien.grall@arm.com List-Id: xen-devel@lists.xenproject.org U2hhcmVkIG1lbW9yeSByZWdpb25zIG5lZWQgdG8gYmUgYWR2ZXJ0aXNlZCB0byB0aGUgZ3Vlc3Qu IEZvcnR1bmF0ZWx5LCBhCmRldmljZSB0cmVlIGJpbmRpbmcgZm9yIHNwZWNpYWwgbWVtb3J5IHJl Z2lvbnMgYWxyZWFkeSBleGlzdDoKcmVzZXJ2ZWQtbWVtb3J5LgoKQWRkIGEgcmVzZXJ2ZWQtbWVt b3J5IG5vZGUgZm9yIGVhY2ggc2hhcmVkIG1lbW9yeSByZWdpb24sIGZvciBib3RoCm1hc3RlcnMg YW5kIHNsYXZlcy4KClNpZ25lZC1vZmYtYnk6IFN0ZWZhbm8gU3RhYmVsbGluaSA8c3RlZmFub3NA eGlsaW54LmNvbT4KLS0tCkNoYW5nZXMgaW4gdjc6Ci0gY2hhbmdlIG5vZGUgbmFtZSB0byB4ZW4t c2htZW0KLSBhZGQgY29tcGF0aWJsZSBwcm9wZXJ0eQotIGFkZCBpZCBwcm9wZXJ0eQotLS0KIHRv b2xzL2xpYnhsL2xpYnhsX2FyY2guaCB8ICAyICstCiB0b29scy9saWJ4bC9saWJ4bF9hcm0uYyAg fCA1OSArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKystLS0KIHRv b2xzL2xpYnhsL2xpYnhsX2RvbS5jICB8ICAyICstCiB0b29scy9saWJ4bC9saWJ4bF94ODYuYyAg fCAgMiArLQogNCBmaWxlcyBjaGFuZ2VkLCA1OSBpbnNlcnRpb25zKCspLCA2IGRlbGV0aW9ucygt KQoKZGlmZiAtLWdpdCBhL3Rvb2xzL2xpYnhsL2xpYnhsX2FyY2guaCBiL3Rvb2xzL2xpYnhsL2xp YnhsX2FyY2guaAppbmRleCA2YTA3Y2NmLi4zNjI2ZTRhIDEwMDY0NAotLS0gYS90b29scy9saWJ4 bC9saWJ4bF9hcmNoLmgKKysrIGIvdG9vbHMvbGlieGwvbGlieGxfYXJjaC5oCkBAIC0zNiw3ICsz Niw3IEBAIGludCBsaWJ4bF9fYXJjaF9kb21haW5fY3JlYXRlKGxpYnhsX19nYyAqZ2MsIGxpYnhs X2RvbWFpbl9jb25maWcgKmRfY29uZmlnLAogLyogc2V0dXAgYXJjaCBzcGVjaWZpYyBoYXJkd2Fy ZSBkZXNjcmlwdGlvbiwgaS5lLiBEVEIgb24gQVJNICovCiBfaGlkZGVuCiBpbnQgbGlieGxfX2Fy Y2hfZG9tYWluX2luaXRfaHdfZGVzY3JpcHRpb24obGlieGxfX2djICpnYywKLSAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBsaWJ4bF9kb21haW5fYnVpbGRfaW5mbyAq aW5mbywKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBsaWJ4bF9k b21haW5fY29uZmlnICpkX2NvbmZpZywKICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICBsaWJ4bF9fZG9tYWluX2J1aWxkX3N0YXRlICpzdGF0ZSwKICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBzdHJ1Y3QgeGNfZG9tX2ltYWdlICpkb20p OwogLyogZmluYWxpemUgYXJjaCBzcGVjaWZpYyBoYXJkd2FyZSBkZXNjcmlwdGlvbi4gKi8KZGlm ZiAtLWdpdCBhL3Rvb2xzL2xpYnhsL2xpYnhsX2FybS5jIGIvdG9vbHMvbGlieGwvbGlieGxfYXJt LmMKaW5kZXggNWY2MmU3OC4uNzJkZDBkMiAxMDA2NDQKLS0tIGEvdG9vbHMvbGlieGwvbGlieGxf YXJtLmMKKysrIGIvdG9vbHMvbGlieGwvbGlieGxfYXJtLmMKQEAgLTQ2MSw2ICs0NjEsNTYgQEAg c3RhdGljIGludCBtYWtlX21lbW9yeV9ub2RlcyhsaWJ4bF9fZ2MgKmdjLCB2b2lkICpmZHQsCiAg ICAgcmV0dXJuIDA7CiB9CiAKK3N0YXRpYyBpbnQgbWFrZV9yZXNlcnZlZF9ub2RlcyhsaWJ4bF9f Z2MgKmdjLCB2b2lkICpmZHQsCisgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgbGlieGxf ZG9tYWluX2NvbmZpZyAqZF9jb25maWcpCit7CisgICAgaW50IHJlcywgaTsKKyAgICBjb25zdCBj aGFyICpuYW1lOworCisgICAgaWYgKGRfY29uZmlnLT5udW1fc3NobXMgPT0gMCkKKyAgICAgICAg cmV0dXJuIDA7CisKKyAgICByZXMgPSBmZHRfYmVnaW5fbm9kZShmZHQsICJyZXNlcnZlZC1tZW1v cnkiKTsKKyAgICBpZiAocmVzKSByZXR1cm4gcmVzOworCisgICAgcmVzID0gZmR0X3Byb3BlcnR5 X2NlbGwoZmR0LCAiI2FkZHJlc3MtY2VsbHMiLCBST09UX0FERFJFU1NfQ0VMTFMpOworICAgIGlm IChyZXMpIHJldHVybiByZXM7CisKKyAgICByZXMgPSBmZHRfcHJvcGVydHlfY2VsbChmZHQsICIj c2l6ZS1jZWxscyIsIFJPT1RfU0laRV9DRUxMUyk7CisgICAgaWYgKHJlcykgcmV0dXJuIHJlczsK KworICAgIHJlcyA9IGZkdF9wcm9wZXJ0eShmZHQsICJyYW5nZXMiLCBOVUxMLCAwKTsKKyAgICBp ZiAocmVzKSByZXR1cm4gcmVzOworCisgICAgZm9yIChpID0gMDsgaSA8IGRfY29uZmlnLT5udW1f c3NobXM7IGkrKykgeworICAgICAgICB1aW50NjRfdCBzdGFydCA9IGRfY29uZmlnLT5zc2htc1tp XS5iZWdpbjsKKyAgICAgICAgaWYgKGRfY29uZmlnLT5zc2htc1tpXS5yb2xlID09IExJQlhMX1NT SE1fUk9MRV9TTEFWRSkKKyAgICAgICAgICAgIHN0YXJ0ICs9IGRfY29uZmlnLT5zc2htc1tpXS5v ZmZzZXQ7CisgICAgICAgIG5hbWUgPSBHQ1NQUklOVEYoInhlbi1zaG1lbUAlIlBSSXg2NCwgc3Rh cnQpOworCisgICAgICAgIHJlcyA9IGZkdF9iZWdpbl9ub2RlKGZkdCwgbmFtZSk7CisgICAgICAg IGlmIChyZXMpIHJldHVybiByZXM7CisKKyAgICAgICAgcmVzID0gZmR0X3Byb3BlcnR5X3JlZ3Mo Z2MsIGZkdCwgUk9PVF9BRERSRVNTX0NFTExTLCBST09UX1NJWkVfQ0VMTFMsCisgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgIDEsIHN0YXJ0LCBkX2NvbmZpZy0+c3NobXNbaV0uc2l6ZSk7 CisgICAgICAgIGlmIChyZXMpIHJldHVybiByZXM7CisKKyAgICAgICAgcmVzID0gZmR0X3Byb3Bl cnR5X2NvbXBhdChnYywgZmR0LCAxLCAieGVuLHNoYXJlZC1tZW1vcnkiKTsKKyAgICAgICAgaWYg KHJlcykgcmV0dXJuIHJlczsKKworICAgICAgICByZXMgPSBmZHRfcHJvcGVydHlfc3RyaW5nKGZk dCwgImlkIiwgZF9jb25maWctPnNzaG1zW2ldLmlkKTsKKyAgICAgICAgaWYgKHJlcykgcmV0dXJu IHJlczsKKworICAgICAgICByZXMgPSBmZHRfZW5kX25vZGUoZmR0KTsKKyAgICAgICAgaWYgKHJl cykgcmV0dXJuIHJlczsKKyAgICB9CisKKyAgICByZXMgPSBmZHRfZW5kX25vZGUoZmR0KTsKKyAg ICBpZiAocmVzKSByZXR1cm4gcmVzOworCisgICAgcmV0dXJuIDA7Cit9CisKIHN0YXRpYyBpbnQg bWFrZV9naWN2Ml9ub2RlKGxpYnhsX19nYyAqZ2MsIHZvaWQgKmZkdCwKICAgICAgICAgICAgICAg ICAgICAgICAgICAgIHVpbnQ2NF90IGdpY2RfYmFzZSwgdWludDY0X3QgZ2ljZF9zaXplLAogICAg ICAgICAgICAgICAgICAgICAgICAgICAgdWludDY0X3QgZ2ljY19iYXNlLCB1aW50NjRfdCBnaWNj X3NpemUpCkBAIC04MzYsMTAgKzg4NiwxMSBAQCBzdGF0aWMgaW50IGNvcHlfcGFydGlhbF9mZHQo bGlieGxfX2djICpnYywgdm9pZCAqZmR0LCB2b2lkICpwZmR0KQogCiAjZGVmaW5lIEZEVF9NQVhf U0laRSAoMTw8MjApCiAKLXN0YXRpYyBpbnQgbGlieGxfX3ByZXBhcmVfZHRiKGxpYnhsX19nYyAq Z2MsIGxpYnhsX2RvbWFpbl9idWlsZF9pbmZvICppbmZvLAorc3RhdGljIGludCBsaWJ4bF9fcHJl cGFyZV9kdGIobGlieGxfX2djICpnYywgbGlieGxfZG9tYWluX2NvbmZpZyAqZF9jb25maWcsCiAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICBsaWJ4bF9fZG9tYWluX2J1aWxkX3N0YXRlICpz dGF0ZSwKICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIHN0cnVjdCB4Y19kb21faW1hZ2Ug KmRvbSkKIHsKKyAgICBsaWJ4bF9kb21haW5fYnVpbGRfaW5mbyAqaW5mbyA9ICZkX2NvbmZpZy0+ Yl9pbmZvOwogICAgIHZvaWQgKmZkdCA9IE5VTEw7CiAgICAgdm9pZCAqcGZkdCA9IE5VTEw7CiAg ICAgaW50IHJjLCByZXM7CkBAIC05MjIsNiArOTczLDcgQEAgbmV4dF9yZXNpemU6CiAgICAgICAg IEZEVCggbWFrZV9wc2NpX25vZGUoZ2MsIGZkdCkgKTsKIAogICAgICAgICBGRFQoIG1ha2VfbWVt b3J5X25vZGVzKGdjLCBmZHQsIGRvbSkgKTsKKyAgICAgICAgRkRUKCBtYWtlX3Jlc2VydmVkX25v ZGVzKGdjLCBmZHQsIGRfY29uZmlnKSApOwogCiAgICAgICAgIHN3aXRjaCAoaW5mby0+YXJjaF9h cm0uZ2ljX3ZlcnNpb24pIHsKICAgICAgICAgY2FzZSBMSUJYTF9HSUNfVkVSU0lPTl9WMjoKQEAg LTk3MSwxMiArMTAyMywxMyBAQCBvdXQ6CiB9CiAKIGludCBsaWJ4bF9fYXJjaF9kb21haW5faW5p dF9od19kZXNjcmlwdGlvbihsaWJ4bF9fZ2MgKmdjLAotICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgIGxpYnhsX2RvbWFpbl9idWlsZF9pbmZvICppbmZvLAorICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGxpYnhsX2RvbWFpbl9jb25maWcg KmRfY29uZmlnLAogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGxp YnhsX19kb21haW5fYnVpbGRfc3RhdGUgKnN0YXRlLAogICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgIHN0cnVjdCB4Y19kb21faW1hZ2UgKmRvbSkKIHsKICAgICBpbnQg cmM7CiAgICAgdWludDY0X3QgdmFsOworICAgIGxpYnhsX2RvbWFpbl9idWlsZF9pbmZvICppbmZv ID0gJmRfY29uZmlnLT5iX2luZm87CiAKICAgICBhc3NlcnQoaW5mby0+dHlwZSA9PSBMSUJYTF9E T01BSU5fVFlQRV9QVik7CiAKQEAgLTk5Miw3ICsxMDQ1LDcgQEAgaW50IGxpYnhsX19hcmNoX2Rv bWFpbl9pbml0X2h3X2Rlc2NyaXB0aW9uKGxpYnhsX19nYyAqZ2MsCiAgICAgaWYgKHJjKQogICAg ICAgICByZXR1cm4gcmM7CiAKLSAgICByYyA9IGxpYnhsX19wcmVwYXJlX2R0YihnYywgaW5mbywg c3RhdGUsIGRvbSk7CisgICAgcmMgPSBsaWJ4bF9fcHJlcGFyZV9kdGIoZ2MsIGRfY29uZmlnLCBz dGF0ZSwgZG9tKTsKICAgICBpZiAocmMpIGdvdG8gb3V0OwogCiAgICAgaWYgKCFsaWJ4bF9kZWZi b29sX3ZhbChpbmZvLT5hY3BpKSkgewpkaWZmIC0tZ2l0IGEvdG9vbHMvbGlieGwvbGlieGxfZG9t LmMgYi90b29scy9saWJ4bC9saWJ4bF9kb20uYwppbmRleCAzY2ZlMGQ0Li40YWI1MmRmIDEwMDY0 NAotLS0gYS90b29scy9saWJ4bC9saWJ4bF9kb20uYworKysgYi90b29scy9saWJ4bC9saWJ4bF9k b20uYwpAQCAtNzE5LDcgKzcxOSw3IEBAIHN0YXRpYyBpbnQgbGlieGxfX2J1aWxkX2RvbShsaWJ4 bF9fZ2MgKmdjLCB1aW50MzJfdCBkb21pZCwKICAgICAgICAgTE9HKEVSUk9SLCAieGNfZG9tX3Bh cnNlX2ltYWdlIGZhaWxlZCIpOwogICAgICAgICBnb3RvIG91dDsKICAgICB9Ci0gICAgaWYgKCAo cmV0ID0gbGlieGxfX2FyY2hfZG9tYWluX2luaXRfaHdfZGVzY3JpcHRpb24oZ2MsIGluZm8sIHN0 YXRlLCBkb20pKSAhPSAwICkgeworICAgIGlmICggKHJldCA9IGxpYnhsX19hcmNoX2RvbWFpbl9p bml0X2h3X2Rlc2NyaXB0aW9uKGdjLCBkX2NvbmZpZywgc3RhdGUsIGRvbSkpICE9IDAgKSB7CiAg ICAgICAgIExPR0UoRVJST1IsICJsaWJ4bF9fYXJjaF9kb21haW5faW5pdF9od19kZXNjcmlwdGlv biBmYWlsZWQiKTsKICAgICAgICAgZ290byBvdXQ7CiAgICAgfQpkaWZmIC0tZ2l0IGEvdG9vbHMv bGlieGwvbGlieGxfeDg2LmMgYi90b29scy9saWJ4bC9saWJ4bF94ODYuYwppbmRleCBkZDNkZTk2 Li5hM2UyOTE1IDEwMDY0NAotLS0gYS90b29scy9saWJ4bC9saWJ4bF94ODYuYworKysgYi90b29s cy9saWJ4bC9saWJ4bF94ODYuYwpAQCAtMzY3LDcgKzM2Nyw3IEBAIGludCBsaWJ4bF9fYXJjaF9l eHRyYV9tZW1vcnkobGlieGxfX2djICpnYywKIH0KIAogaW50IGxpYnhsX19hcmNoX2RvbWFpbl9p bml0X2h3X2Rlc2NyaXB0aW9uKGxpYnhsX19nYyAqZ2MsCi0gICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgbGlieGxfZG9tYWluX2J1aWxkX2luZm8gKmluZm8sCisgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgbGlieGxfZG9tYWluX2NvbmZp ZyAqZF9jb25maWcsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg bGlieGxfX2RvbWFpbl9idWlsZF9zdGF0ZSAqc3RhdGUsCiAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgc3RydWN0IHhjX2RvbV9pbWFnZSAqZG9tKQogewotLSAKMS45 LjEKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4t ZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczov L2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs