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GET /api/patches/289/?format=api
{ "id": 289, "url": "http://patchwork.ozlabs.org/api/patches/289/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1221546450-15761-3-git-send-email-ehrhardt@linux.vnet.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<1221546450-15761-3-git-send-email-ehrhardt@linux.vnet.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/1221546450-15761-3-git-send-email-ehrhardt@linux.vnet.ibm.com/", "date": "2008-09-16T06:27:29", "name": "kvmppc: add hypercall infrastructure - guest part v3", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": true, "hash": "65d7f722929e6dbf2125d1e61783629b0124cc6a", "submitter": { "id": 151, "url": "http://patchwork.ozlabs.org/api/people/151/?format=api", "name": null, "email": "ehrhardt@linux.vnet.ibm.com" }, "delegate": { "id": 47, "url": "http://patchwork.ozlabs.org/api/users/47/?format=api", "username": "hollisb", "first_name": "Hollis", "last_name": "Blanchard", "email": "hollis@penguinppc.org" }, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1221546450-15761-3-git-send-email-ehrhardt@linux.vnet.ibm.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/289/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/289/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork=ozlabs.org@ozlabs.org>", "X-Original-To": [ "patchwork@ozlabs.org", "linuxppc-dev@ozlabs.org" ], "Delivered-To": [ "patchwork@ozlabs.org", "linuxppc-dev@ozlabs.org" ], "Received": [ "from ozlabs.org (localhost [127.0.0.1])\n\tby ozlabs.org (Postfix) with ESMTP id 384F0DE379\n\tfor <patchwork@ozlabs.org>; Tue, 16 Sep 2008 16:29:26 +1000 (EST)", "from mtagate5.de.ibm.com (mtagate5.de.ibm.com [195.212.29.154])\n\t(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))\n\t(Client CN \"mtagate5.de.ibm.com\", Issuer \"Equifax\" (verified OK))\n\tby ozlabs.org (Postfix) with ESMTPS id 9810DDDEEC\n\tfor <linuxppc-dev@ozlabs.org>; Tue, 16 Sep 2008 16:29:04 +1000 (EST)", "from d12nrmr1607.megacenter.de.ibm.com\n\t(d12nrmr1607.megacenter.de.ibm.com [9.149.167.49])\n\tby mtagate5.de.ibm.com (8.13.8/8.13.8) with ESMTP id m8G6RwWI675246\n\tfor <linuxppc-dev@ozlabs.org>; Tue, 16 Sep 2008 06:27:58 GMT", "from d12av01.megacenter.de.ibm.com (d12av01.megacenter.de.ibm.com\n\t[9.149.165.212])\n\tby d12nrmr1607.megacenter.de.ibm.com (8.13.8/8.13.8/NCO v9.1) with\n\tESMTP id m8G6RwVP1786038\n\tfor <linuxppc-dev@ozlabs.org>; Tue, 16 Sep 2008 08:27:58 +0200", "from d12av01.megacenter.de.ibm.com (loopback [127.0.0.1])\n\tby d12av01.megacenter.de.ibm.com (8.12.11.20060308/8.13.3) with ESMTP\n\tid m8G6Rt1a025226\n\tfor <linuxppc-dev@ozlabs.org>; Tue, 16 Sep 2008 08:27:55 +0200", "from localhost.localdomain (dyn-9-152-198-109.boeblingen.de.ibm.com\n\t[9.152.198.109])\n\tby d12av01.megacenter.de.ibm.com (8.12.11.20060308/8.12.11) with\n\tESMTP id m8G6Rsbu024799; Tue, 16 Sep 2008 08:27:54 +0200" ], "From": "ehrhardt@linux.vnet.ibm.com", "To": "linuxppc-dev@ozlabs.org, kvm-ppc@vger.kernel.org", "Subject": "[PATCH 2/3] kvmppc: add hypercall infrastructure - guest part v3", "Date": "Tue, 16 Sep 2008 08:27:29 +0200", "Message-Id": "<1221546450-15761-3-git-send-email-ehrhardt@linux.vnet.ibm.com>", "X-Mailer": "git-send-email 1.5.4.3", "In-Reply-To": "<1221546450-15761-1-git-send-email-ehrhardt@linux.vnet.ibm.com>", "References": "<1221546450-15761-1-git-send-email-ehrhardt@linux.vnet.ibm.com>", "Cc": "hollisb@us.ibm.com", "X-BeenThere": "linuxppc-dev@ozlabs.org", "X-Mailman-Version": "2.1.11", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List <linuxppc-dev.ozlabs.org>", "List-Unsubscribe": "<https://ozlabs.org/mailman/options/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@ozlabs.org?subject=unsubscribe>", "List-Archive": "<http://ozlabs.org/pipermail/linuxppc-dev>", "List-Post": "<mailto:linuxppc-dev@ozlabs.org>", "List-Help": "<mailto:linuxppc-dev-request@ozlabs.org?subject=help>", "List-Subscribe": "<https://ozlabs.org/mailman/listinfo/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@ozlabs.org?subject=subscribe>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "linuxppc-dev-bounces+patchwork=ozlabs.org@ozlabs.org", "Errors-To": "linuxppc-dev-bounces+patchwork=ozlabs.org@ozlabs.org" }, "content": "From: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>\n\nThis adds the guest portion of the hypercall infrastructure.\n\nVersion 3 now follows the beat ABI, but proposes a new implementation style as\nstatic inline asm functions instead of pure assembler code. That should allow\nthe compiler to be more flexible and therefore a better optimization.\n\nIf people agree on that new implementation style we might merge this code.\nThe current implementation of beat style hypercalls can be found in\narch/powerpc/platforms/cell/beat_hvCall.S\n\nSigned-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>", "diff": "diff --git a/include/asm-powerpc/epapr_hcalls.h b/include/asm-powerpc/epapr_hcalls.h\nnew file mode 100644\n--- /dev/null\n+++ b/include/asm-powerpc/epapr_hcalls.h\n@@ -0,0 +1,59 @@\n+/*\n+ * This program is free software; you can redistribute it and/or modify\n+ * it under the terms of the GNU General Public License, version 2, as\n+ * published by the Free Software Foundation.\n+ *\n+ * This program is distributed in the hope that it will be useful,\n+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\n+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n+ * GNU General Public License for more details.\n+ *\n+ * You should have received a copy of the GNU General Public License\n+ * along with this program; if not, write to the Free Software\n+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\n+ *\n+ * Copyright IBM Corp. 2008\n+ *\n+ * Authors:\n+ * \tChristian Ehrhardt <ehrhardt@de.ibm.com>\n+ */\n+\n+#ifndef __POWERPC_EPAPR_HCALLS_H__\n+#define __POWERPC_EPAPR_HCALLS_H__\n+\n+#ifdef __KERNEL__\n+\n+/* Hypercalls use the beat ABI */\n+#define KVM_HYPERCALL_BIN 0x44000022\n+\n+static inline long epapr_hypercall_1in_1out(unsigned int nr, unsigned long p1)\n+{\n+\tregister unsigned long hcall asm (\"r11\") = nr;\n+\tregister unsigned long arg1_ret asm (\"r3\") = p1;\n+\n+\tasm volatile(\".long %1\"\n+\t\t\t: \"+r\"(arg1_ret)\n+\t\t\t: \"i\"(KVM_HYPERCALL_BIN), \"r\"(hcall)\n+\t\t\t: \"r4\", \"r5\", \"r6\", \"r7\", \"r8\",\n+\t\t\t \"r9\", \"r10\", \"r12\", \"cc\");\n+\treturn arg1_ret;\n+}\n+\n+static inline long epapr_hypercall_2in_1out(unsigned int nr,\n+\t\t\t\t\tunsigned long p1, unsigned long p2)\n+{\n+\tregister unsigned long hcall asm (\"r11\") = nr;\n+\tregister unsigned long arg1_ret asm (\"r3\") = p1;\n+\tregister unsigned long arg2 asm (\"r4\") = p2;\n+\n+\tasm volatile(\".long %1\"\n+\t\t\t: \"+r\"(arg1_ret)\n+\t\t\t: \"i\"(KVM_HYPERCALL_BIN), \"r\"(hcall), \"r\"(arg2)\n+\t\t\t: \"r5\", \"r6\", \"r7\", \"r8\",\n+\t\t\t \"r9\", \"r10\", \"r12\", \"cc\");\n+\treturn arg1_ret;\n+}\n+\n+#endif /* __KERNEL__ */\n+\n+#endif /* __POWERPC_EPAPR_HCALLS_H__ */\n", "prefixes": [] }