From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 878E2C43603 for ; Tue, 17 Dec 2019 20:44:44 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EC343206CB for ; Tue, 17 Dec 2019 20:44:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="LDEAFP34" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EC343206CB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=1zD8elDr07jXl+7USZjP0xbFT45DtdtGRpJJa94y9Y0=; b=LDEAFP34zSi037 EeGFzKeJQUZCLFb0JlkW+YCgtLBxX8SpA4qTOHciPlh1JQKh4IgiuMYS9hLVJFdsgIgs0hHMgDN9g Cs60Ws1O2X/SnWooj48nDo4TrI4ONfHqlZfH1SkOhkMsW4XGf5LDw9yFu8NZlEc+LvtVXI2DhwV/6 MLoQ5Av2huzJZNYGvpyjGjuk/Xak90iOpDzmX7bS9NX6bObTDYZPTRZWMjKgXFNRogrur1uGYEchf phMV/qq6YfCrjzyssB8Kklb7EOSksfFBJkNkDDY/QJ8voi07WPDlTjChUcy35l1Ywxy9Od7FpAaj2 fFRBLLnWBgp0EmOVC5DA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ihJhw-00084N-Ku; Tue, 17 Dec 2019 20:44:40 +0000 Received: from mga17.intel.com ([192.55.52.151]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ihJeE-0004mU-Eo for linux-arm-kernel@lists.infradead.org; Tue, 17 Dec 2019 20:40:52 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Dec 2019 12:40:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,326,1571727600"; d="scan'208";a="389952596" Received: from sjchrist-coffee.jf.intel.com ([10.54.74.202]) by orsmga005.jf.intel.com with ESMTP; 17 Dec 2019 12:40:42 -0800 From: Sean Christopherson To: James Hogan , Paul Mackerras , Christian Borntraeger , Janosch Frank , Paolo Bonzini , Marc Zyngier Subject: [PATCH v4 08/19] KVM: Refactor error handling for setting memory region Date: Tue, 17 Dec 2019 12:40:30 -0800 Message-Id: <20191217204041.10815-9-sean.j.christopherson@intel.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191217204041.10815-1-sean.j.christopherson@intel.com> References: <20191217204041.10815-1-sean.j.christopherson@intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191217_124050_549469_987AE426 X-CRM114-Status: GOOD ( 15.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Christoffer Dall , Wanpeng Li , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , kvm@vger.kernel.org, David Hildenbrand , Joerg Roedel , Cornelia Huck , linux-mips@vger.kernel.org, Sean Christopherson , linux-kernel@vger.kernel.org, James Morse , kvm-ppc@vger.kernel.org, Vitaly Kuznetsov , Suzuki K Poulose , kvmarm@lists.cs.columbia.edu, Julien Thierry , Jim Mattson Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org UmVwbGFjZSBhIGJpZyBwaWxlIG8nIGdvdG9zIHdpdGggcmV0dXJucyB0byBtYWtlIGl0IG1vcmUg b2J2aW91cyB3aGF0CmVycm9yIGNvZGUgaXMgYmVpbmcgcmV0dXJuZWQsIGFuZCB0byBwcmVwYXJl IGZvciByZWZhY3RvcmluZyB0aGUKZnVuY3Rpb25hbCwgaS5lLiBwb3N0LWNoZWNrcywgcG9ydGlv biBvZiBfX2t2bV9zZXRfbWVtb3J5X3JlZ2lvbigpLgoKUmV2aWV3ZWQtYnk6IEphbm9zY2ggRnJh bmsgPGZyYW5ramFAbGludXguaWJtLmNvbT4KUmV2aWV3ZWQtYnk6IFBoaWxpcHBlIE1hdGhpZXUt RGF1ZMOpIDxmNGJ1Z0BhbXNhdC5vcmc+ClNpZ25lZC1vZmYtYnk6IFNlYW4gQ2hyaXN0b3BoZXJz b24gPHNlYW4uai5jaHJpc3RvcGhlcnNvbkBpbnRlbC5jb20+Ci0tLQogdmlydC9rdm0va3ZtX21h aW4uYyB8IDQwICsrKysrKysrKysrKysrKysrKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0KIDEgZmls ZSBjaGFuZ2VkLCAxOCBpbnNlcnRpb25zKCspLCAyMiBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQg YS92aXJ0L2t2bS9rdm1fbWFpbi5jIGIvdmlydC9rdm0va3ZtX21haW4uYwppbmRleCA2YjIyNjFh OWUxMzkuLjljNDg4YzY1MzI1NyAxMDA2NDQKLS0tIGEvdmlydC9rdm0va3ZtX21haW4uYworKysg Yi92aXJ0L2t2bS9rdm1fbWFpbi5jCkBAIC0xMDA4LDM0ICsxMDA4LDMzIEBAIGludCBfX2t2bV9z ZXRfbWVtb3J5X3JlZ2lvbihzdHJ1Y3Qga3ZtICprdm0sCiAKIAlyID0gY2hlY2tfbWVtb3J5X3Jl Z2lvbl9mbGFncyhtZW0pOwogCWlmIChyKQotCQlnb3RvIG91dDsKKwkJcmV0dXJuIHI7CiAKLQly ID0gLUVJTlZBTDsKIAlhc19pZCA9IG1lbS0+c2xvdCA+PiAxNjsKIAlpZCA9ICh1MTYpbWVtLT5z bG90OwogCiAJLyogR2VuZXJhbCBzYW5pdHkgY2hlY2tzICovCiAJaWYgKG1lbS0+bWVtb3J5X3Np emUgJiAoUEFHRV9TSVpFIC0gMSkpCi0JCWdvdG8gb3V0OworCQlyZXR1cm4gLUVJTlZBTDsKIAlp ZiAobWVtLT5ndWVzdF9waHlzX2FkZHIgJiAoUEFHRV9TSVpFIC0gMSkpCi0JCWdvdG8gb3V0Owor CQlyZXR1cm4gLUVJTlZBTDsKIAkvKiBXZSBjYW4gcmVhZCB0aGUgZ3Vlc3QgbWVtb3J5IHdpdGgg X194eHhfdXNlcigpIGxhdGVyIG9uLiAqLwogCWlmICgoaWQgPCBLVk1fVVNFUl9NRU1fU0xPVFMp ICYmCiAJICAgICgobWVtLT51c2Vyc3BhY2VfYWRkciAmIChQQUdFX1NJWkUgLSAxKSkgfHwKIAkg ICAgICFhY2Nlc3Nfb2soKHZvaWQgX191c2VyICopKHVuc2lnbmVkIGxvbmcpbWVtLT51c2Vyc3Bh Y2VfYWRkciwKIAkJCW1lbS0+bWVtb3J5X3NpemUpKSkKLQkJZ290byBvdXQ7CisJCXJldHVybiAt RUlOVkFMOwogCWlmIChhc19pZCA+PSBLVk1fQUREUkVTU19TUEFDRV9OVU0gfHwgaWQgPj0gS1ZN X01FTV9TTE9UU19OVU0pCi0JCWdvdG8gb3V0OworCQlyZXR1cm4gLUVJTlZBTDsKIAlpZiAobWVt LT5ndWVzdF9waHlzX2FkZHIgKyBtZW0tPm1lbW9yeV9zaXplIDwgbWVtLT5ndWVzdF9waHlzX2Fk ZHIpCi0JCWdvdG8gb3V0OworCQlyZXR1cm4gLUVJTlZBTDsKIAogCXNsb3QgPSBpZF90b19tZW1z bG90KF9fa3ZtX21lbXNsb3RzKGt2bSwgYXNfaWQpLCBpZCk7CiAJYmFzZV9nZm4gPSBtZW0tPmd1 ZXN0X3BoeXNfYWRkciA+PiBQQUdFX1NISUZUOwogCW5wYWdlcyA9IG1lbS0+bWVtb3J5X3NpemUg Pj4gUEFHRV9TSElGVDsKIAogCWlmIChucGFnZXMgPiBLVk1fTUVNX01BWF9OUl9QQUdFUykKLQkJ Z290byBvdXQ7CisJCXJldHVybiAtRUlOVkFMOwogCiAJbmV3ID0gb2xkID0gKnNsb3Q7CiAKQEAg LTEwNTIsMjAgKzEwNTEsMTggQEAgaW50IF9fa3ZtX3NldF9tZW1vcnlfcmVnaW9uKHN0cnVjdCBr dm0gKmt2bSwKIAkJCWlmICgobmV3LnVzZXJzcGFjZV9hZGRyICE9IG9sZC51c2Vyc3BhY2VfYWRk cikgfHwKIAkJCSAgICAobnBhZ2VzICE9IG9sZC5ucGFnZXMpIHx8CiAJCQkgICAgKChuZXcuZmxh Z3MgXiBvbGQuZmxhZ3MpICYgS1ZNX01FTV9SRUFET05MWSkpCi0JCQkJZ290byBvdXQ7CisJCQkJ cmV0dXJuIC1FSU5WQUw7CiAKIAkJCWlmIChiYXNlX2dmbiAhPSBvbGQuYmFzZV9nZm4pCiAJCQkJ Y2hhbmdlID0gS1ZNX01SX01PVkU7CiAJCQllbHNlIGlmIChuZXcuZmxhZ3MgIT0gb2xkLmZsYWdz KQogCQkJCWNoYW5nZSA9IEtWTV9NUl9GTEFHU19PTkxZOwotCQkJZWxzZSB7IC8qIE5vdGhpbmcg dG8gY2hhbmdlLiAqLwotCQkJCXIgPSAwOwotCQkJCWdvdG8gb3V0OwotCQkJfQorCQkJZWxzZSAv KiBOb3RoaW5nIHRvIGNoYW5nZS4gKi8KKwkJCQlyZXR1cm4gMDsKIAkJfQogCX0gZWxzZSB7CiAJ CWlmICghb2xkLm5wYWdlcykKLQkJCWdvdG8gb3V0OworCQkJcmV0dXJuIC1FSU5WQUw7CiAKIAkJ Y2hhbmdlID0gS1ZNX01SX0RFTEVURTsKIAkJbmV3LmJhc2VfZ2ZuID0gMDsKQEAgLTEwNzQsMjkg KzEwNzEsMjkgQEAgaW50IF9fa3ZtX3NldF9tZW1vcnlfcmVnaW9uKHN0cnVjdCBrdm0gKmt2bSwK IAogCWlmICgoY2hhbmdlID09IEtWTV9NUl9DUkVBVEUpIHx8IChjaGFuZ2UgPT0gS1ZNX01SX01P VkUpKSB7CiAJCS8qIENoZWNrIGZvciBvdmVybGFwcyAqLwotCQlyID0gLUVFWElTVDsKIAkJa3Zt X2Zvcl9lYWNoX21lbXNsb3Qoc2xvdCwgX19rdm1fbWVtc2xvdHMoa3ZtLCBhc19pZCkpIHsKIAkJ CWlmIChzbG90LT5pZCA9PSBpZCkKIAkJCQljb250aW51ZTsKIAkJCWlmICghKChiYXNlX2dmbiAr IG5wYWdlcyA8PSBzbG90LT5iYXNlX2dmbikgfHwKIAkJCSAgICAgIChiYXNlX2dmbiA+PSBzbG90 LT5iYXNlX2dmbiArIHNsb3QtPm5wYWdlcykpKQotCQkJCWdvdG8gb3V0OworCQkJCXJldHVybiAt RUVYSVNUOwogCQl9CiAJfQogCi0JciA9IC1FTk9NRU07Ci0KIAkvKiBBbGxvY2F0ZS9mcmVlIHBh Z2UgZGlydHkgYml0bWFwIGFzIG5lZWRlZCAqLwogCWlmICghKG5ldy5mbGFncyAmIEtWTV9NRU1f TE9HX0RJUlRZX1BBR0VTKSkKIAkJbmV3LmRpcnR5X2JpdG1hcCA9IE5VTEw7CiAJZWxzZSBpZiAo IW5ldy5kaXJ0eV9iaXRtYXApIHsKLQkJaWYgKGt2bV9jcmVhdGVfZGlydHlfYml0bWFwKCZuZXcp IDwgMCkKLQkJCWdvdG8gb3V0OworCQlyID0ga3ZtX2NyZWF0ZV9kaXJ0eV9iaXRtYXAoJm5ldyk7 CisJCWlmIChyKQorCQkJcmV0dXJuIHI7CiAJfQogCiAJc2xvdHMgPSBrdnphbGxvYyhzaXplb2Yo c3RydWN0IGt2bV9tZW1zbG90cyksIEdGUF9LRVJORUxfQUNDT1VOVCk7Ci0JaWYgKCFzbG90cykK KwlpZiAoIXNsb3RzKSB7CisJCXIgPSAtRU5PTUVNOwogCQlnb3RvIG91dF9iaXRtYXA7CisJfQog CW1lbWNweShzbG90cywgX19rdm1fbWVtc2xvdHMoa3ZtLCBhc19pZCksIHNpemVvZihzdHJ1Y3Qg a3ZtX21lbXNsb3RzKSk7CiAKIAlpZiAoKGNoYW5nZSA9PSBLVk1fTVJfREVMRVRFKSB8fCAoY2hh bmdlID09IEtWTV9NUl9NT1ZFKSkgewpAQCAtMTE0Nyw3ICsxMTQ0LDYgQEAgaW50IF9fa3ZtX3Nl dF9tZW1vcnlfcmVnaW9uKHN0cnVjdCBrdm0gKmt2bSwKIG91dF9iaXRtYXA6CiAJaWYgKG5ldy5k aXJ0eV9iaXRtYXAgJiYgIW9sZC5kaXJ0eV9iaXRtYXApCiAJCWt2bV9kZXN0cm95X2RpcnR5X2Jp dG1hcCgmbmV3KTsKLW91dDoKIAlyZXR1cm4gcjsKIH0KIEVYUE9SVF9TWU1CT0xfR1BMKF9fa3Zt X3NldF9tZW1vcnlfcmVnaW9uKTsKLS0gCjIuMjQuMQoKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0Cmxp bnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFk Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK