From patchwork Fri Aug 17 17:53:38 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eduardo Habkost X-Patchwork-Id: 178287 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id B68CE2C0099 for ; Sat, 18 Aug 2012 03:52:59 +1000 (EST) Received: from localhost ([::1]:53989 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T2QjB-0007XZ-S5 for incoming@patchwork.ozlabs.org; Fri, 17 Aug 2012 13:52:57 -0400 Received: from eggs.gnu.org ([208.118.235.92]:52556) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T2Qiz-0007V1-VG for qemu-devel@nongnu.org; Fri, 17 Aug 2012 13:52:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1T2Qiy-0007gs-Jc for qemu-devel@nongnu.org; Fri, 17 Aug 2012 13:52:45 -0400 Received: from mx1.redhat.com ([209.132.183.28]:63385) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T2Qiy-0007gg-AH for qemu-devel@nongnu.org; Fri, 17 Aug 2012 13:52:44 -0400 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q7HHqekp002694 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 17 Aug 2012 13:52:40 -0400 Received: from blackpad.lan.raisama.net (vpn1-6-17.gru2.redhat.com [10.97.6.17]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id q7HHqd2J028822; Fri, 17 Aug 2012 13:52:40 -0400 Received: by blackpad.lan.raisama.net (Postfix, from userid 500) id 93581201176; Fri, 17 Aug 2012 14:53:44 -0300 (BRT) From: Eduardo Habkost To: qemu-devel@nongnu.org Date: Fri, 17 Aug 2012 14:53:38 -0300 Message-Id: <1345226022-21654-3-git-send-email-ehabkost@redhat.com> In-Reply-To: <1345226022-21654-1-git-send-email-ehabkost@redhat.com> References: <1345226022-21654-1-git-send-email-ehabkost@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.132.183.28 Cc: aliguori@us.ibm.com, stefanha@linux.vnet.ibm.com, gleb@redhat.com, jan.kiszka@siemens.com, mtosatti@redhat.com, mdroth@linux.vnet.ibm.com, blauwirbel@gmail.com, avi@redhat.com, pbonzini@redhat.com, akong@redhat.com, lersek@redhat.com, afaerber@suse.de Subject: [Qemu-devel] [RFC 2/6] i386: kill cpudef config section support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org It's nice to have a flexible system to maintain CPU models as data, but this is holding us from making improvements in the CPU code because it's not using the common infra-structure, and because the machine-type data is still inside C code. Users who want to configure CPU features directly may simply use the "-cpu" command-line option (and maybe an equivalent -device option in the future) to set CPU features. Signed-off-by: Eduardo Habkost --- target-i386/cpu.c | 101 ++---------------------------------------------------- 1 file changed, 2 insertions(+), 99 deletions(-) diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 519a104..71c2ee7 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -237,7 +237,6 @@ typedef struct x86_def_t { uint32_t xlevel; char model_id[48]; int vendor_override; - uint32_t flags; /* Store the results of Centaur's CPUID instructions */ uint32_t ext4_features; uint32_t xlevel2; @@ -1286,7 +1285,7 @@ void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf) char buf[256]; for (def = x86_defs; def; def = def->next) { - snprintf(buf, sizeof (buf), def->flags ? "[%s]": "%s", def->name); + snprintf(buf, sizeof(buf), "%s", def->name); (*cpu_fprintf)(f, "x86 %16s %-48s\n", buf, def->model_id); } if (kvm_enabled()) { @@ -1380,16 +1379,6 @@ int cpu_x86_register(X86CPU *cpu, const char *cpu_model) } #if !defined(CONFIG_USER_ONLY) -/* copy vendor id string to 32 bit register, nul pad as needed - */ -static void cpyid(const char *s, uint32_t *id) -{ - char *d = (char *)id; - char i; - - for (i = sizeof (*id); i--; ) - *d++ = *s ? *s++ : '\0'; -} /* interpret radix and convert from string to arbitrary scalar, * otherwise flag failure @@ -1403,87 +1392,6 @@ static void cpyid(const char *s, uint32_t *id) *str && !*pend ? (*pval = ul) : (*perr = 1); \ } -/* map cpuid options to feature bits, otherwise return failure - * (option tags in *str are delimited by whitespace) - */ -static void setfeatures(uint32_t *pval, const char *str, - const char **featureset, int *perr) -{ - const char *p, *q; - - for (q = p = str; *p || *q; q = p) { - while (iswhite(*p)) - q = ++p; - while (*p && !iswhite(*p)) - ++p; - if (!*q && !*p) - return; - if (!lookup_feature(pval, q, p, featureset)) { - fprintf(stderr, "error: feature \"%.*s\" not available in set\n", - (int)(p - q), q); - *perr = 1; - return; - } - } -} - -/* map config file options to x86_def_t form - */ -static int cpudef_setfield(const char *name, const char *str, void *opaque) -{ - x86_def_t *def = opaque; - int err = 0; - - if (!strcmp(name, "name")) { - g_free((void *)def->name); - def->name = g_strdup(str); - } else if (!strcmp(name, "model_id")) { - strncpy(def->model_id, str, sizeof (def->model_id)); - } else if (!strcmp(name, "level")) { - setscalar(&def->level, str, &err) - } else if (!strcmp(name, "vendor")) { - cpyid(&str[0], &def->vendor1); - cpyid(&str[4], &def->vendor2); - cpyid(&str[8], &def->vendor3); - } else if (!strcmp(name, "family")) { - setscalar(&def->family, str, &err) - } else if (!strcmp(name, "model")) { - setscalar(&def->model, str, &err) - } else if (!strcmp(name, "stepping")) { - setscalar(&def->stepping, str, &err) - } else if (!strcmp(name, "feature_edx")) { - setfeatures(&def->features, str, feature_name, &err); - } else if (!strcmp(name, "feature_ecx")) { - setfeatures(&def->ext_features, str, ext_feature_name, &err); - } else if (!strcmp(name, "extfeature_edx")) { - setfeatures(&def->ext2_features, str, ext2_feature_name, &err); - } else if (!strcmp(name, "extfeature_ecx")) { - setfeatures(&def->ext3_features, str, ext3_feature_name, &err); - } else if (!strcmp(name, "xlevel")) { - setscalar(&def->xlevel, str, &err) - } else { - fprintf(stderr, "error: unknown option [%s = %s]\n", name, str); - return (1); - } - if (err) { - fprintf(stderr, "error: bad option value [%s = %s]\n", name, str); - return (1); - } - return (0); -} - -/* register config file entry as x86_def_t - */ -static int cpudef_register(QemuOpts *opts, void *opaque) -{ - x86_def_t *def = g_malloc0(sizeof (x86_def_t)); - - qemu_opt_foreach(opts, cpudef_setfield, def, 1); - def->next = x86_defs; - x86_defs = def; - return (0); -} - void cpu_clear_apic_feature(CPUX86State *env) { env->cpuid_features &= ~CPUID_APIC; @@ -1491,8 +1399,7 @@ void cpu_clear_apic_feature(CPUX86State *env) #endif /* !CONFIG_USER_ONLY */ -/* register "cpudef" models defined in configuration file. Here we first - * preload any built-in definitions +/* Initialize list of CPU models, filling some non-static fields if necessary */ void x86_cpudef_setup(void) { @@ -1502,7 +1409,6 @@ void x86_cpudef_setup(void) for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); ++i) { x86_def_t *def = &builtin_x86_defs[i]; def->next = x86_defs; - def->flags = 1; /* Look for specific "cpudef" models that */ /* have the QEMU version in .model_id */ @@ -1518,9 +1424,6 @@ void x86_cpudef_setup(void) x86_defs = def; } -#if !defined(CONFIG_USER_ONLY) - qemu_opts_foreach(qemu_find_opts("cpudef"), cpudef_register, NULL, 0); -#endif } static void get_cpuid_vendor(CPUX86State *env, uint32_t *ebx,