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 Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (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 95F89C77B7E for ; Mon, 29 May 2023 08:27:46 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id B321D3CCFF7 for ; Mon, 29 May 2023 10:27:43 +0200 (CEST) Received: from in-6.smtp.seeweb.it (in-6.smtp.seeweb.it [217.194.8.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id 47EE63CCDC9 for ; Mon, 29 May 2023 10:27:34 +0200 (CEST) Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by in-6.smtp.seeweb.it (Postfix) with ESMTPS id B65F51400127 for ; Mon, 29 May 2023 10:27:32 +0200 (CEST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id B220421A72; Mon, 29 May 2023 08:27:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1685348851; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QLgzKsizlP/Tte/pPhRcNMO8i4u/6uwen/dNVFo1a9Y=; b=sWia+w+JfDNSpXs8Pu5LuD52CfypDFNN24Gw+nz7AD30YXNM0wv7DgH+OewVoV/uwmuKsK Y33rns3a8B+qgNZDxSxTOmRn8jG5mOc2LqAQzvEp7MGIGrtkERxLfE1qzfFJGDKaUVJpQq vEnPIALH41L1rIXnzgUKGmCJD4XwE64= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1685348851; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QLgzKsizlP/Tte/pPhRcNMO8i4u/6uwen/dNVFo1a9Y=; b=7Ynjtk7jG8WR5XQqPNLoIP5On8it1JDeXQfpsPW9ynLkekai2hrfeXHyrpMSJT5SD+6JMn NIhlanMNoufBYfCw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 861A913466; Mon, 29 May 2023 08:27:31 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id etGrH/NhdGT9WQAAMHmgww (envelope-from ); Mon, 29 May 2023 08:27:31 +0000 Date: Mon, 29 May 2023 10:27:30 +0200 From: Petr Vorel To: Martin Doucha Message-ID: <20230529082730.GA18615@pevik> References: <20230526133435.7369-1-mdoucha@suse.cz> <20230526133435.7369-5-mdoucha@suse.cz> <20230529055110.GC6579@pevik> <0023ff26-0798-6f37-4bb8-e733bfed1fcb@suse.cz> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <0023ff26-0798-6f37-4bb8-e733bfed1fcb@suse.cz> X-Virus-Scanned: clamav-milter 1.0.1 at in-6.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH v2 4/7] KVM: Add async communication helper functions X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Petr Vorel Cc: Nicolai Stange , ltp@lists.linux.it Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" > On 29. 05. 23 7:51, Petr Vorel wrote: > > Hi Martin, > > > Test programs using these functions must have at least two host threads. > > IMHO we don't have flags to require this. I guess KVM hosts nowadays should have > > more than 2 threads (these tests are for bare metal), thus we don't have to note > > this also in the code, right? > We have tst_test.min_cpus, used e.g. in kvm_svm03. But this is a note to > programmers that they must use pthreads, otherwise tst_kvm_wait_guest() will > always time out or lock up. The signaling can work even on single CPU unless > you somehow manage to break task switching in the host kernel (like in > kvm_svm03). +1, thanks! Kind regards, Petr -- Mailing list info: https://lists.linux.it/listinfo/ltp