From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: [PATCH v6 7/7] xen/arm: export shared memory regions as reserved-memory on device tree Date: Tue, 31 Jul 2018 11:23:09 -0700 Message-ID: <1533061389-6504-7-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 eGlsaW54LmNvbT4KLS0tCiB0b29scy9saWJ4bC9saWJ4bF9hcmNoLmggfCAgMiArLQogdG9vbHMv bGlieGwvbGlieGxfYXJtLmMgIHwgNTIgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrLS0tCiB0b29scy9saWJ4bC9saWJ4bF9kb20uYyAgfCAgMiArLQogdG9vbHMv bGlieGwvbGlieGxfeDg2LmMgIHwgIDIgKy0KIDQgZmlsZXMgY2hhbmdlZCwgNTIgaW5zZXJ0aW9u cygrKSwgNiBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS90b29scy9saWJ4bC9saWJ4bF9hcmNo LmggYi90b29scy9saWJ4bC9saWJ4bF9hcmNoLmgKaW5kZXggNmEwN2NjZi4uMzYyNmU0YSAxMDA2 NDQKLS0tIGEvdG9vbHMvbGlieGwvbGlieGxfYXJjaC5oCisrKyBiL3Rvb2xzL2xpYnhsL2xpYnhs X2FyY2guaApAQCAtMzYsNyArMzYsNyBAQCBpbnQgbGlieGxfX2FyY2hfZG9tYWluX2NyZWF0ZShs aWJ4bF9fZ2MgKmdjLCBsaWJ4bF9kb21haW5fY29uZmlnICpkX2NvbmZpZywKIC8qIHNldHVwIGFy Y2ggc3BlY2lmaWMgaGFyZHdhcmUgZGVzY3JpcHRpb24sIGkuZS4gRFRCIG9uIEFSTSAqLwogX2hp ZGRlbgogaW50IGxpYnhsX19hcmNoX2RvbWFpbl9pbml0X2h3X2Rlc2NyaXB0aW9uKGxpYnhsX19n YyAqZ2MsCi0gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgbGlieGxf ZG9tYWluX2J1aWxkX2luZm8gKmluZm8sCisgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgbGlieGxfZG9tYWluX2NvbmZpZyAqZF9jb25maWcsCiAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgbGlieGxfX2RvbWFpbl9idWlsZF9zdGF0ZSAq c3RhdGUsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgc3RydWN0 IHhjX2RvbV9pbWFnZSAqZG9tKTsKIC8qIGZpbmFsaXplIGFyY2ggc3BlY2lmaWMgaGFyZHdhcmUg ZGVzY3JpcHRpb24uICovCmRpZmYgLS1naXQgYS90b29scy9saWJ4bC9saWJ4bF9hcm0uYyBiL3Rv b2xzL2xpYnhsL2xpYnhsX2FybS5jCmluZGV4IDVmNjJlNzguLjQwMjA0NTMgMTAwNjQ0Ci0tLSBh L3Rvb2xzL2xpYnhsL2xpYnhsX2FybS5jCisrKyBiL3Rvb2xzL2xpYnhsL2xpYnhsX2FybS5jCkBA IC00NjEsNiArNDYxLDQ5IEBAIHN0YXRpYyBpbnQgbWFrZV9tZW1vcnlfbm9kZXMobGlieGxfX2dj ICpnYywgdm9pZCAqZmR0LAogICAgIHJldHVybiAwOwogfQogCitzdGF0aWMgaW50IG1ha2VfcmVz ZXJ2ZWRfbm9kZXMobGlieGxfX2djICpnYywgdm9pZCAqZmR0LAorICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgIGxpYnhsX2RvbWFpbl9jb25maWcgKmRfY29uZmlnKQoreworICAgIGludCBy ZXMsIGk7CisgICAgY29uc3QgY2hhciAqbmFtZTsKKworICAgIGlmIChkX2NvbmZpZy0+bnVtX3Nz aG1zID09IDApCisgICAgICAgIHJldHVybiAwOworCisgICAgcmVzID0gZmR0X2JlZ2luX25vZGUo ZmR0LCAicmVzZXJ2ZWQtbWVtb3J5Iik7CisgICAgaWYgKHJlcykgcmV0dXJuIHJlczsKKworICAg IHJlcyA9IGZkdF9wcm9wZXJ0eV9jZWxsKGZkdCwgIiNhZGRyZXNzLWNlbGxzIiwgUk9PVF9BRERS RVNTX0NFTExTKTsKKyAgICBpZiAocmVzKSByZXR1cm4gcmVzOworCisgICAgcmVzID0gZmR0X3By b3BlcnR5X2NlbGwoZmR0LCAiI3NpemUtY2VsbHMiLCBST09UX1NJWkVfQ0VMTFMpOworICAgIGlm IChyZXMpIHJldHVybiByZXM7CisKKyAgICByZXMgPSBmZHRfcHJvcGVydHkoZmR0LCAicmFuZ2Vz IiwgTlVMTCwgMCk7CisgICAgaWYgKHJlcykgcmV0dXJuIHJlczsKKworICAgIGZvciAoaSA9IDA7 IGkgPCBkX2NvbmZpZy0+bnVtX3NzaG1zOyBpKyspIHsKKyAgICAgICAgdWludDY0X3Qgc3RhcnQg PSBkX2NvbmZpZy0+c3NobXNbaV0uYmVnaW47CisgICAgICAgIGlmIChkX2NvbmZpZy0+c3NobXNb aV0ucm9sZSA9PSBMSUJYTF9TU0hNX1JPTEVfU0xBVkUpCisgICAgICAgICAgICBzdGFydCArPSBk X2NvbmZpZy0+c3NobXNbaV0ub2Zmc2V0OworICAgICAgICBuYW1lID0gR0NTUFJJTlRGKCJtZW1v cnlAJSJQUkl4NjQsIHN0YXJ0KTsKKworICAgICAgICByZXMgPSBmZHRfYmVnaW5fbm9kZShmZHQs IG5hbWUpOworICAgICAgICBpZiAocmVzKSByZXR1cm4gcmVzOworCisgICAgICAgIHJlcyA9IGZk dF9wcm9wZXJ0eV9yZWdzKGdjLCBmZHQsIFJPT1RfQUREUkVTU19DRUxMUywgUk9PVF9TSVpFX0NF TExTLAorICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAxLCBzdGFydCwgZF9jb25maWct PnNzaG1zW2ldLnNpemUpOworCisgICAgICAgIHJlcyA9IGZkdF9lbmRfbm9kZShmZHQpOworICAg ICAgICBpZiAocmVzKSByZXR1cm4gcmVzOworICAgIH0KKworICAgIHJlcyA9IGZkdF9lbmRfbm9k ZShmZHQpOworICAgIGlmIChyZXMpIHJldHVybiByZXM7CisKKyAgICByZXR1cm4gMDsKK30KKwog c3RhdGljIGludCBtYWtlX2dpY3YyX25vZGUobGlieGxfX2djICpnYywgdm9pZCAqZmR0LAogICAg ICAgICAgICAgICAgICAgICAgICAgICAgdWludDY0X3QgZ2ljZF9iYXNlLCB1aW50NjRfdCBnaWNk X3NpemUsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICB1aW50NjRfdCBnaWNjX2Jhc2UsIHVp bnQ2NF90IGdpY2Nfc2l6ZSkKQEAgLTgzNiwxMCArODc5LDExIEBAIHN0YXRpYyBpbnQgY29weV9w YXJ0aWFsX2ZkdChsaWJ4bF9fZ2MgKmdjLCB2b2lkICpmZHQsIHZvaWQgKnBmZHQpCiAKICNkZWZp bmUgRkRUX01BWF9TSVpFICgxPDwyMCkKIAotc3RhdGljIGludCBsaWJ4bF9fcHJlcGFyZV9kdGIo bGlieGxfX2djICpnYywgbGlieGxfZG9tYWluX2J1aWxkX2luZm8gKmluZm8sCitzdGF0aWMgaW50 IGxpYnhsX19wcmVwYXJlX2R0YihsaWJ4bF9fZ2MgKmdjLCBsaWJ4bF9kb21haW5fY29uZmlnICpk X2NvbmZpZywKICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGxpYnhsX19kb21haW5fYnVp bGRfc3RhdGUgKnN0YXRlLAogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgc3RydWN0IHhj X2RvbV9pbWFnZSAqZG9tKQogeworICAgIGxpYnhsX2RvbWFpbl9idWlsZF9pbmZvICppbmZvID0g JmRfY29uZmlnLT5iX2luZm87CiAgICAgdm9pZCAqZmR0ID0gTlVMTDsKICAgICB2b2lkICpwZmR0 ID0gTlVMTDsKICAgICBpbnQgcmMsIHJlczsKQEAgLTkyMiw2ICs5NjYsNyBAQCBuZXh0X3Jlc2l6 ZToKICAgICAgICAgRkRUKCBtYWtlX3BzY2lfbm9kZShnYywgZmR0KSApOwogCiAgICAgICAgIEZE VCggbWFrZV9tZW1vcnlfbm9kZXMoZ2MsIGZkdCwgZG9tKSApOworICAgICAgICBGRFQoIG1ha2Vf cmVzZXJ2ZWRfbm9kZXMoZ2MsIGZkdCwgZF9jb25maWcpICk7CiAKICAgICAgICAgc3dpdGNoIChp bmZvLT5hcmNoX2FybS5naWNfdmVyc2lvbikgewogICAgICAgICBjYXNlIExJQlhMX0dJQ19WRVJT SU9OX1YyOgpAQCAtOTcxLDEyICsxMDE2LDEzIEBAIG91dDoKIH0KIAogaW50IGxpYnhsX19hcmNo X2RvbWFpbl9pbml0X2h3X2Rlc2NyaXB0aW9uKGxpYnhsX19nYyAqZ2MsCi0gICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgbGlieGxfZG9tYWluX2J1aWxkX2luZm8gKmlu Zm8sCisgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgbGlieGxfZG9t YWluX2NvbmZpZyAqZF9jb25maWcsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgbGlieGxfX2RvbWFpbl9idWlsZF9zdGF0ZSAqc3RhdGUsCiAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgc3RydWN0IHhjX2RvbV9pbWFnZSAqZG9tKQog ewogICAgIGludCByYzsKICAgICB1aW50NjRfdCB2YWw7CisgICAgbGlieGxfZG9tYWluX2J1aWxk X2luZm8gKmluZm8gPSAmZF9jb25maWctPmJfaW5mbzsKIAogICAgIGFzc2VydChpbmZvLT50eXBl ID09IExJQlhMX0RPTUFJTl9UWVBFX1BWKTsKIApAQCAtOTkyLDcgKzEwMzgsNyBAQCBpbnQgbGli eGxfX2FyY2hfZG9tYWluX2luaXRfaHdfZGVzY3JpcHRpb24obGlieGxfX2djICpnYywKICAgICBp ZiAocmMpCiAgICAgICAgIHJldHVybiByYzsKIAotICAgIHJjID0gbGlieGxfX3ByZXBhcmVfZHRi KGdjLCBpbmZvLCBzdGF0ZSwgZG9tKTsKKyAgICByYyA9IGxpYnhsX19wcmVwYXJlX2R0YihnYywg ZF9jb25maWcsIHN0YXRlLCBkb20pOwogICAgIGlmIChyYykgZ290byBvdXQ7CiAKICAgICBpZiAo IWxpYnhsX2RlZmJvb2xfdmFsKGluZm8tPmFjcGkpKSB7CmRpZmYgLS1naXQgYS90b29scy9saWJ4 bC9saWJ4bF9kb20uYyBiL3Rvb2xzL2xpYnhsL2xpYnhsX2RvbS5jCmluZGV4IDNjZmUwZDQuLjRh YjUyZGYgMTAwNjQ0Ci0tLSBhL3Rvb2xzL2xpYnhsL2xpYnhsX2RvbS5jCisrKyBiL3Rvb2xzL2xp YnhsL2xpYnhsX2RvbS5jCkBAIC03MTksNyArNzE5LDcgQEAgc3RhdGljIGludCBsaWJ4bF9fYnVp bGRfZG9tKGxpYnhsX19nYyAqZ2MsIHVpbnQzMl90IGRvbWlkLAogICAgICAgICBMT0coRVJST1Is ICJ4Y19kb21fcGFyc2VfaW1hZ2UgZmFpbGVkIik7CiAgICAgICAgIGdvdG8gb3V0OwogICAgIH0K LSAgICBpZiAoIChyZXQgPSBsaWJ4bF9fYXJjaF9kb21haW5faW5pdF9od19kZXNjcmlwdGlvbihn YywgaW5mbywgc3RhdGUsIGRvbSkpICE9IDAgKSB7CisgICAgaWYgKCAocmV0ID0gbGlieGxfX2Fy Y2hfZG9tYWluX2luaXRfaHdfZGVzY3JpcHRpb24oZ2MsIGRfY29uZmlnLCBzdGF0ZSwgZG9tKSkg IT0gMCApIHsKICAgICAgICAgTE9HRShFUlJPUiwgImxpYnhsX19hcmNoX2RvbWFpbl9pbml0X2h3 X2Rlc2NyaXB0aW9uIGZhaWxlZCIpOwogICAgICAgICBnb3RvIG91dDsKICAgICB9CmRpZmYgLS1n aXQgYS90b29scy9saWJ4bC9saWJ4bF94ODYuYyBiL3Rvb2xzL2xpYnhsL2xpYnhsX3g4Ni5jCmlu ZGV4IGRkM2RlOTYuLmEzZTI5MTUgMTAwNjQ0Ci0tLSBhL3Rvb2xzL2xpYnhsL2xpYnhsX3g4Ni5j CisrKyBiL3Rvb2xzL2xpYnhsL2xpYnhsX3g4Ni5jCkBAIC0zNjcsNyArMzY3LDcgQEAgaW50IGxp YnhsX19hcmNoX2V4dHJhX21lbW9yeShsaWJ4bF9fZ2MgKmdjLAogfQogCiBpbnQgbGlieGxfX2Fy Y2hfZG9tYWluX2luaXRfaHdfZGVzY3JpcHRpb24obGlieGxfX2djICpnYywKLSAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBsaWJ4bF9kb21haW5fYnVpbGRfaW5mbyAq aW5mbywKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBsaWJ4bF9k b21haW5fY29uZmlnICpkX2NvbmZpZywKICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICBsaWJ4bF9fZG9tYWluX2J1aWxkX3N0YXRlICpzdGF0ZSwKICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBzdHJ1Y3QgeGNfZG9tX2ltYWdlICpkb20p CiB7Ci0tIAoxLjkuMQoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qu b3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2 ZWw=