From nobody Mon Feb 9 15:45:26 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1502096358299777.7650337061605; Mon, 7 Aug 2017 01:59:18 -0700 (PDT) Received: from localhost ([::1]:36105 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dedsa-0002dT-0T for importer@patchew.org; Mon, 07 Aug 2017 04:59:16 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54380) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dedqj-0001Qj-Kz for qemu-devel@nongnu.org; Mon, 07 Aug 2017 04:57:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dedqf-0007En-My for qemu-devel@nongnu.org; Mon, 07 Aug 2017 04:57:21 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47480) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dedqf-0007DH-DU for qemu-devel@nongnu.org; Mon, 07 Aug 2017 04:57:17 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C186881245; Mon, 7 Aug 2017 08:57:14 +0000 (UTC) Received: from dhcp-1-107.brq.redhat.com (unknown [10.43.2.49]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6A5B060BE3; Mon, 7 Aug 2017 08:57:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com C186881245 Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=lprosek@redhat.com From: Ladi Prosek To: qemu-devel@nongnu.org, kvm@vger.kernel.org Date: Mon, 7 Aug 2017 10:57:00 +0200 Message-Id: <20170807085703.32267-2-lprosek@redhat.com> In-Reply-To: <20170807085703.32267-1-lprosek@redhat.com> References: <20170807085703.32267-1-lprosek@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Mon, 07 Aug 2017 08:57:14 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 1/4] i386/kvm: use a switch statement for MSR detection X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pbonzini@redhat.com, mtosatti@redhat.com, rkrcmar@redhat.com, david@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Switch is easier on the eye and might lead to better codegen. Signed-off-by: Ladi Prosek --- target/i386/kvm.c | 75 +++++++++++++++++++++++----------------------------= ---- 1 file changed, 31 insertions(+), 44 deletions(-) diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 6db7783..b14a0db 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -1081,65 +1081,52 @@ static int kvm_get_supported_msrs(KVMState *s) int i; =20 for (i =3D 0; i < kvm_msr_list->nmsrs; i++) { - if (kvm_msr_list->indices[i] =3D=3D MSR_STAR) { + switch (kvm_msr_list->indices[i]) { + case MSR_STAR: has_msr_star =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D MSR_VM_HSAVE_PA) { + break; + case MSR_VM_HSAVE_PA: has_msr_hsave_pa =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D MSR_TSC_AUX) { + break; + case MSR_TSC_AUX: has_msr_tsc_aux =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D MSR_TSC_ADJUST) { + break; + case MSR_TSC_ADJUST: has_msr_tsc_adjust =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D MSR_IA32_TSCDEADLINE) { + break; + case MSR_IA32_TSCDEADLINE: has_msr_tsc_deadline =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D MSR_IA32_SMBASE) { + break; + case MSR_IA32_SMBASE: has_msr_smbase =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D MSR_IA32_MISC_ENABLE) { + break; + case MSR_IA32_MISC_ENABLE: has_msr_misc_enable =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D MSR_IA32_BNDCFGS) { + break; + case MSR_IA32_BNDCFGS: has_msr_bndcfgs =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D MSR_IA32_XSS) { + break; + case MSR_IA32_XSS: has_msr_xss =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D HV_X64_MSR_CRASH_CTL) { + break;; + case HV_X64_MSR_CRASH_CTL: has_msr_hv_crash =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D HV_X64_MSR_RESET) { + break; + case HV_X64_MSR_RESET: has_msr_hv_reset =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D HV_X64_MSR_VP_INDEX) { + break; + case HV_X64_MSR_VP_INDEX: has_msr_hv_vpindex =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D HV_X64_MSR_VP_RUNTIME)= { + break; + case HV_X64_MSR_VP_RUNTIME: has_msr_hv_runtime =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D HV_X64_MSR_SCONTROL) { + break; + case HV_X64_MSR_SCONTROL: has_msr_hv_synic =3D true; - continue; - } - if (kvm_msr_list->indices[i] =3D=3D HV_X64_MSR_STIMER0_CON= FIG) { + break; + case HV_X64_MSR_STIMER0_CONFIG: has_msr_hv_stimer =3D true; - continue; + break; } } } --=20 2.9.3