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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 1CF25C433EF for ; Wed, 8 Sep 2021 10:49:51 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 A0E606113C for ; Wed, 8 Sep 2021 10:49:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A0E606113C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:60626 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mNv9I-0000FX-P8 for qemu-devel@archiver.kernel.org; Wed, 08 Sep 2021 06:49:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45444) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mNuxF-0000Ba-6n for qemu-devel@nongnu.org; Wed, 08 Sep 2021 06:37:21 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:32640) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mNuxD-0003rw-Dv for qemu-devel@nongnu.org; Wed, 08 Sep 2021 06:37:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1631097438; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rKnaBwFCCJX9ZX6cv7A4ifx+XIL+7QBX+qDEATc0WKY=; b=EbWhV21Bb8bQrZ4nIacHh93WUp5CZ2YeRFNhwtYxSJ0UmComjP69Pua1cZV9k0P/XIuTzK RuP+L68Q+2mZtSjO9YX4r34p/XyYDls4Y3uQrJRc1yd6hhNBJv2AB/RdM+Vv7+LYQ8hWdq pQwuqJV+x0wIuw1fy6QJ9gOnT64Dl+c= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-574-z2mHo6-XPy6_HWSPpv7Jbw-1; Wed, 08 Sep 2021 06:37:17 -0400 X-MC-Unique: z2mHo6-XPy6_HWSPpv7Jbw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E9C1F101F000; Wed, 8 Sep 2021 10:37:16 +0000 (UTC) Received: from localhost.localdomain.com (unknown [10.39.192.7]) by smtp.corp.redhat.com (Postfix) with ESMTP id 87CD55C1BB; Wed, 8 Sep 2021 10:37:15 +0000 (UTC) From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH 2/5] hw/core: introduce 'format_state' callback to replace 'dump_state' Date: Wed, 8 Sep 2021 11:37:08 +0100 Message-Id: <20210908103711.683940-3-berrange@redhat.com> In-Reply-To: <20210908103711.683940-1-berrange@redhat.com> References: <20210908103711.683940-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.391, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eduardo Habkost , "Dr. David Alan Gilbert" , Markus Armbruster , Eric Blake Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The 'dump_state' callback assumes it will be outputting to a FILE object. This is fine for HMP, but not so useful for QMP. Introduce a new 'format_state' callback that returns a formatted GString instead. Signed-off-by: Daniel P. Berrangé --- hw/core/cpu-common.c | 15 +++++++++++++++ include/hw/core/cpu.h | 13 ++++++++++++- 2 files changed, 27 insertions(+), 1 deletion(-) diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c index e2f5a64604..c2cd33a817 100644 --- a/hw/core/cpu-common.c +++ b/hw/core/cpu-common.c @@ -106,6 +106,21 @@ void cpu_dump_state(CPUState *cpu, FILE *f, int flags) if (cc->dump_state) { cpu_synchronize_state(cpu); cc->dump_state(cpu, f, flags); + } else if (cc->format_state) { + g_autoptr(GString) buf = g_string_new(""); + cpu_synchronize_state(cpu); + cc->format_state(cpu, buf, flags); + qemu_fprintf(f, "%s", buf->str); + } +} + +void cpu_format_state(CPUState *cpu, GString *buf, int flags) +{ + CPUClass *cc = CPU_GET_CLASS(cpu); + + if (cc->format_state) { + cpu_synchronize_state(cpu); + cc->format_state(cpu, buf, flags); } } diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index bc864564ce..1599ef9df3 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -91,7 +91,8 @@ struct SysemuCPUOps; * @reset_dump_flags: #CPUDumpFlags to use for reset logging. * @has_work: Callback for checking if there is work to do. * @memory_rw_debug: Callback for GDB memory access. - * @dump_state: Callback for dumping state. + * @dump_state: Callback for dumping state. Deprecated, use @format_state. + * @format_state: Callback for formatting state. * @get_arch_id: Callback for getting architecture-dependent CPU ID. * @set_pc: Callback for setting the Program Counter register. This * should have the semantics used by the target architecture when @@ -136,6 +137,7 @@ struct CPUClass { int (*memory_rw_debug)(CPUState *cpu, vaddr addr, uint8_t *buf, int len, bool is_write); void (*dump_state)(CPUState *cpu, FILE *, int flags); + void (*format_state)(CPUState *cpu, GString *buf, int flags); int64_t (*get_arch_id)(CPUState *cpu); void (*set_pc)(CPUState *cpu, vaddr value); int (*gdb_read_register)(CPUState *cpu, GByteArray *buf, int reg); @@ -537,6 +539,15 @@ enum CPUDumpFlags { */ void cpu_dump_state(CPUState *cpu, FILE *f, int flags); +/** + * cpu_format_state: + * @cpu: The CPU whose state is to be formatted. + * @buf: buffer to format state into + * + * Formats the CPU state. + */ +void cpu_format_state(CPUState *cpu, GString *buf, int flags); + #ifndef CONFIG_USER_ONLY /** * cpu_get_phys_page_attrs_debug: -- 2.31.1