From patchwork Mon Jun 20 19:22:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 12888117 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1036AC43334 for ; Mon, 20 Jun 2022 19:34:17 +0000 (UTC) Received: from localhost ([::1]:42872 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o3NA7-0004O6-VM for qemu-devel@archiver.kernel.org; Mon, 20 Jun 2022 15:34:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60656) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o3Mz3-0003xJ-9z; Mon, 20 Jun 2022 15:22:53 -0400 Received: from mail.csgraf.de ([85.25.223.15]:58856 helo=zulu616.server4you.de) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o3Mz1-0007O3-CO; Mon, 20 Jun 2022 15:22:48 -0400 Received: from localhost.localdomain (dynamic-077-007-106-140.77.7.pool.telefonica.de [77.7.106.140]) by csgraf.de (Postfix) with ESMTPSA id 9D9146080263; Mon, 20 Jun 2022 21:22:43 +0200 (CEST) From: Alexander Graf To: Peter Maydell Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, Richard Henderson Subject: [PATCH v2 1/2] accel: Introduce current_accel_name() Date: Mon, 20 Jun 2022 21:22:41 +0200 Message-Id: <20220620192242.70573-1-agraf@csgraf.de> X-Mailer: git-send-email 2.32.1 (Apple Git-133) MIME-Version: 1.0 Received-SPF: pass client-ip=85.25.223.15; envelope-from=agraf@csgraf.de; helo=zulu616.server4you.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We need to fetch the name of the current accelerator in flexible error messages more going forward. Let's create a helper that gives it to us without casting in the target code. Signed-off-by: Alexander Graf Reviewed-by: Richard Henderson --- accel/accel-common.c | 8 ++++++++ include/qemu/accel.h | 1 + softmmu/vl.c | 3 +-- 3 files changed, 10 insertions(+), 2 deletions(-) diff --git a/accel/accel-common.c b/accel/accel-common.c index 7b8ec7e0f7..50035bda55 100644 --- a/accel/accel-common.c +++ b/accel/accel-common.c @@ -49,6 +49,14 @@ AccelClass *accel_find(const char *opt_name) return ac; } +/* Return the name of the current accelerator */ +const char *current_accel_name(void) +{ + AccelClass *ac = ACCEL_GET_CLASS(current_accel()); + + return ac->name; +} + static void accel_init_cpu_int_aux(ObjectClass *klass, void *opaque) { CPUClass *cc = CPU_CLASS(klass); diff --git a/include/qemu/accel.h b/include/qemu/accel.h index 4f4c283f6f..be56da1b99 100644 --- a/include/qemu/accel.h +++ b/include/qemu/accel.h @@ -68,6 +68,7 @@ typedef struct AccelClass { AccelClass *accel_find(const char *opt_name); AccelState *current_accel(void); +const char *current_accel_name(void); void accel_init_interfaces(AccelClass *ac); diff --git a/softmmu/vl.c b/softmmu/vl.c index 54e920ada1..3dca5936c7 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -2271,8 +2271,7 @@ static void configure_accelerators(const char *progname) } if (init_failed && !qtest_chrdev) { - AccelClass *ac = ACCEL_GET_CLASS(current_accel()); - error_report("falling back to %s", ac->name); + error_report("falling back to %s", current_accel_name()); } if (icount_enabled() && !tcg_enabled()) { From patchwork Mon Jun 20 19:22:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 12888118 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 5490FC43334 for ; Mon, 20 Jun 2022 19:35:58 +0000 (UTC) Received: from localhost ([::1]:45158 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o3NBl-0005x3-Bm for qemu-devel@archiver.kernel.org; Mon, 20 Jun 2022 15:35:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60654) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o3Mz3-0003xI-A5; Mon, 20 Jun 2022 15:22:53 -0400 Received: from mail.csgraf.de ([85.25.223.15]:58860 helo=zulu616.server4you.de) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o3Mz1-0007O7-89; Mon, 20 Jun 2022 15:22:48 -0400 Received: from localhost.localdomain (dynamic-077-007-106-140.77.7.pool.telefonica.de [77.7.106.140]) by csgraf.de (Postfix) with ESMTPSA id 3FD9B6080647; Mon, 20 Jun 2022 21:22:44 +0200 (CEST) From: Alexander Graf To: Peter Maydell Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, Richard Henderson Subject: [PATCH v2 2/2] target/arm: Catch invalid kvm state also for hvf Date: Mon, 20 Jun 2022 21:22:42 +0200 Message-Id: <20220620192242.70573-2-agraf@csgraf.de> X-Mailer: git-send-email 2.32.1 (Apple Git-133) In-Reply-To: <20220620192242.70573-1-agraf@csgraf.de> References: <20220620192242.70573-1-agraf@csgraf.de> MIME-Version: 1.0 Received-SPF: pass client-ip=85.25.223.15; envelope-from=agraf@csgraf.de; helo=zulu616.server4you.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Some features such as running in EL3 or running M profile code are incompatible with virtualization as QEMU implements it today. To prevent users from picking invalid configurations on other virt solutions like Hvf, let's run the same checks there too. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1073 Signed-off-by: Alexander Graf Reviewed-by: Richard Henderson --- v1 -> v2: - Use current_accel_name() - Use !tcg_enabled() --- target/arm/cpu.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 1b5d535788..0862dcd63c 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -1490,7 +1490,7 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) } } - if (kvm_enabled()) { + if (!tcg_enabled()) { /* * Catch all the cases which might cause us to create more than one * address space for the CPU (otherwise we will assert() later in @@ -1498,17 +1498,20 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) */ if (arm_feature(env, ARM_FEATURE_M)) { error_setg(errp, - "Cannot enable KVM when using an M-profile guest CPU"); + "Cannot enable %s when using an M-profile guest CPU", + current_accel_name()); return; } if (cpu->has_el3) { error_setg(errp, - "Cannot enable KVM when guest CPU has EL3 enabled"); + "Cannot enable %s when guest CPU has EL3 enabled", + current_accel_name()); return; } if (cpu->tag_memory) { error_setg(errp, - "Cannot enable KVM when guest CPUs has MTE enabled"); + "Cannot enable %s when guest CPUs has MTE enabled", + current_accel_name()); return; } }