{"id":742445,"url":"http://patchwork.ozlabs.org/api/1.2/patches/742445/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1490243163-19566-4-git-send-email-paulus@ozlabs.org/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/1.2/projects/2/?format=json","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":"<1490243163-19566-4-git-send-email-paulus@ozlabs.org>","list_archive_url":"https://lore.kernel.org/linuxppc-dev/1490243163-19566-4-git-send-email-paulus@ozlabs.org/","date":"2017-03-23T04:26:01","name":"[3/5] KVM: PPC: Add MMIO emulation for stdx (store doubleword indexed)","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"6e7eb9a34b36adab356933d0a6e9f5418160ff9d","submitter":{"id":67079,"url":"http://patchwork.ozlabs.org/api/1.2/people/67079/?format=json","name":"Paul Mackerras","email":"paulus@ozlabs.org"},"delegate":{"id":13,"url":"http://patchwork.ozlabs.org/api/1.2/users/13/?format=json","username":"paulus","first_name":"Paul","last_name":"Mackerras","email":"paulus@samba.org"},"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1490243163-19566-4-git-send-email-paulus@ozlabs.org/mbox/","series":[],"comments":"http://patchwork.ozlabs.org/api/patches/742445/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/742445/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org","linuxppc-dev@ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3vpYVR37KYz9s7f\n\tfor ;\n\tThu, 23 Mar 2017 15:29:35 +1100 (AEDT)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3vpYVR2N0xzDqlN\n\tfor ;\n\tThu, 23 Mar 2017 15:29:35 +1100 (AEDT)","from ozlabs.org (ozlabs.org [103.22.144.67])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3vpYQZ3zPBzDq95\n\tfor ;\n\tThu, 23 Mar 2017 15:26:14 +1100 (AEDT)","by ozlabs.org (Postfix)\n\tid 3vpYQZ38wCz9s8D; Thu, 23 Mar 2017 15:26:14 +1100 (AEDT)","from authenticated.ozlabs.org (localhost [127.0.0.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPSA id 3vpYQZ2gfbz9s8B;\n\tThu, 23 Mar 2017 15:26:14 +1100 (AEDT)"],"From":"Paul Mackerras ","To":"kvm@vger.kernel.org,\n\tlinuxppc-dev@ozlabs.org,\n\tkvm-ppc@vger.kernel.org","Subject":"[PATCH 3/5] KVM: PPC: Add MMIO emulation for stdx (store doubleword\n\tindexed)","Date":"Thu, 23 Mar 2017 15:26:01 +1100","Message-Id":"<1490243163-19566-4-git-send-email-paulus@ozlabs.org>","X-Mailer":"git-send-email 2.7.4","In-Reply-To":"<1490243163-19566-1-git-send-email-paulus@ozlabs.org>","References":"<1490243163-19566-1-git-send-email-paulus@ozlabs.org>","X-BeenThere":"linuxppc-dev@lists.ozlabs.org","X-Mailman-Version":"2.1.23","Precedence":"list","List-Id":"Linux on PowerPC Developers Mail List\n\t","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org","Sender":"\"Linuxppc-dev\"\n\t"},"content":"From: Alexey Kardashevskiy \n\nThis adds missing stdx emulation for emulated MMIO accesses by KVM\nguests. This allows the Mellanox mlx5_core driver from recent kernels\nto work when MMIO emulation is enforced by userspace.\n\nSigned-off-by: Alexey Kardashevskiy \nSigned-off-by: Paul Mackerras \n---\n arch/powerpc/include/asm/ppc-opcode.h | 1 +\n arch/powerpc/kvm/emulate_loadstore.c | 6 ++++++\n 2 files changed, 7 insertions(+)","diff":"diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h\nindex 1e37c3c..94e7df2 100644\n--- a/arch/powerpc/include/asm/ppc-opcode.h\n+++ b/arch/powerpc/include/asm/ppc-opcode.h\n@@ -94,6 +94,7 @@\n #define OP_31_XOP_TRAP_64 68\n #define OP_31_XOP_DCBF 86\n #define OP_31_XOP_LBZX 87\n+#define OP_31_XOP_STDX 149\n #define OP_31_XOP_STWX 151\n #define OP_31_XOP_STBX 215\n #define OP_31_XOP_LBZUX 119\ndiff --git a/arch/powerpc/kvm/emulate_loadstore.c b/arch/powerpc/kvm/emulate_loadstore.c\nindex 9cda1b9..a0f27a3 100644\n--- a/arch/powerpc/kvm/emulate_loadstore.c\n+++ b/arch/powerpc/kvm/emulate_loadstore.c\n@@ -119,6 +119,12 @@ int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu)\n \t\t\tkvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);\n \t\t\tbreak;\n \n+\t\tcase OP_31_XOP_STDX:\n+\t\t\temulated = kvmppc_handle_store(run, vcpu,\n+\t\t\t\t\t\t kvmppc_get_gpr(vcpu, rs),\n+\t\t\t\t\t\t\t8, 1);\n+\t\t\tbreak;\n+\n \t\tcase OP_31_XOP_STWX:\n \t\t\temulated = kvmppc_handle_store(run, vcpu,\n \t\t\t\t\t\t kvmppc_get_gpr(vcpu, rs),\n","prefixes":["3/5"]}