From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f198.google.com (mail-pf1-f198.google.com [209.85.210.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D002635C696 for ; Fri, 31 Jul 2026 19:56:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785527780; cv=none; b=bdZIyUypWDkiUjtI6uYzysI+eEkwOBawtYRua/Kw9Lu8E8F42gEY7Jvwg6DP2Hw6efcUFIusgVYFR0lUFAxSj5E5HcCUEFJIbJbPphOwM1CXgg0IaxaxxxCeR/oEWDbQ7NiJCwDdQPzSaKSJjyO+Qc5W48dH4rAESKorQPS/JxY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785527780; c=relaxed/simple; bh=jIqegcMSdQEr3CCSBl7CEcF3KSy6gnzkLIXn/FjtTSY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=UAKCuyXBrA2KF1OMEpdtDVq5mTd4UsNazQ7jekkFyNfu1T1vPhBRC+3Bx5vh6GiTXogGko71kuqQsi9Zf8F5zMPFmeWvS/+PuRAKR2RQ4hVg7NcK/d071VQJq6d1pvo/eBgzj+7rj6VsGEl+AF2qIan4zo6id4+syVzPf4/yiQU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=c2dTgw0p; arc=none smtp.client-ip=209.85.210.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="c2dTgw0p" Received: by mail-pf1-f198.google.com with SMTP id d2e1a72fcca58-8487eb67173so2706404b3a.2 for ; Fri, 31 Jul 2026 12:56:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1785527777; x=1786132577; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:reply-to:from:to:cc:subject:date:message-id :reply-to:content-type; bh=I1vB8uido3pB5A8nVpiV1ZvPN5oqRESsQC5EjXRdj5A=; b=c2dTgw0p8niztkwbGXye8nUWLzWnMBWSNDf/p0zIhhtm5ztYqObq+BNk3M3vH23ibO TdPDd5FtN+x5EpV4k8VNMsNtgi1GmGDN0PeE45YhHbPcmxMlpUpH42cue3VBtu/VE9wr qG6G7WQ6nhhiUme3xaz5wQ/ljy92nOUeGbhvC6K+yioOnKw7bnNWYHXXlVxZqVORct1y 2w/BaWC6eYw8M1gUz6/8f/gnaWPLZWwyrx5MrpNn9g8+IKumM3e0SPAumxsT5s+ofwt8 MKt7ztF5NWc2D3G3a57xVplVYUkm7nPPUY4qU+SYQ/F77Nf9v0oc1YKYYhGTglm9f7tl 0AYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785527777; x=1786132577; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:reply-to:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to:content-type; bh=I1vB8uido3pB5A8nVpiV1ZvPN5oqRESsQC5EjXRdj5A=; b=UZ7AFn6KE/giDiTGEzeMr/fO3Ss/tOc6pq+O6sklBpWMM+anpx7sSsQGusvokdr91B RaHyJwiT9wN+KCFhqFmXf7x+M6uWRyDdPPf57Cr9Lz79GglZqKZrQt7Xpz+N4KTmRJlM atfA8GXt+kAvEbhn7P1BOBSp7BlhmY78JBLjyFcFXaC9AG+8/DQZ8L6kLdNTb+aDUpEL Tg0t6wrdlwAQHbaJIHVFdq1BbH2XYLiuGJK//zW0M48K+RYRjnAL33JqLLIevSG/D35y FqZyNL8kl1LpITfRxp7vccc1a5xEnPWFBpubwnuzzXTNfvTziP+AFIsoCD4vo834d3s1 Df1g== X-Forwarded-Encrypted: i=1; AHgh+Rp7IhHWopIRJGBgi6EpJKrdTTlEjvKFRR9Gg9oeScTKn/zyO/Jt5CMqX1JVTDAGb6yHC5sl1c40Ju+0AnM=@vger.kernel.org X-Gm-Message-State: AOJu0YyDPAl1mrXk/bXxY+ZWfgvXJt3/zSbamLmDc7fFLXPNaoNqQXfZ LIkLUT6+CAudJTWS96kG8axl71mQKXRiAqdqe5S/H8w0w6oSPBVYTyF07KCb0JtjmviRprIGWHk 0S3klXA== X-Received: from pfbi2-n1.prod.google.com ([2002:a05:6a00:a502:10b0:845:c4b8:9730]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:aa7:9a87:0:b0:848:2f73:8ffd with SMTP id d2e1a72fcca58-84ee49339bemr849272b3a.70.1785527777019; Fri, 31 Jul 2026 12:56:17 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 31 Jul 2026 12:56:01 -0700 In-Reply-To: <20260731195612.2697986-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260731195612.2697986-1-seanjc@google.com> X-Mailer: git-send-email 2.55.0.508.g3f0d502094-goog Message-ID: <20260731195612.2697986-2-seanjc@google.com> Subject: [PATCH v3 01/12] KVM: selftests: Add a KVM syscall wrapper for sched_setaffinity() From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Oliver Upton , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Sean Christopherson Cc: Joey Gouly , Steffen Eiden , Suzuki K Poulose , Zenghui Yu , David Hildenbrand , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Add and use a KVM wrapper for sched_setaffinity() so that selftests don't need to manually assert that the syscall succeeded. No functional change intended. Signed-off-by: Sean Christopherson --- tools/testing/selftests/kvm/include/kvm_syscalls.h | 1 + tools/testing/selftests/kvm/rseq_test.c | 6 ++---- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/kvm/include/kvm_syscalls.h b/tools/testing/selftests/kvm/include/kvm_syscalls.h index 5dae6143ddb0..01dca99009c2 100644 --- a/tools/testing/selftests/kvm/include/kvm_syscalls.h +++ b/tools/testing/selftests/kvm/include/kvm_syscalls.h @@ -95,6 +95,7 @@ __KVM_SYSCALL_DEFINE(fallocate, 4, int, fd, int, mode, loff_t, offset, loff_t, l __KVM_SYSCALL_DEFINE(ftruncate, 2, unsigned int, fd, off_t, length); __KVM_SYSCALL_DEFINE(madvise, 3, void *, addr, size_t, length, int, advice); __KVM_SYSCALL_DEFINE(sched_getaffinity, 3, pid_t, pid, size_t, cpusetsize, cpu_set_t *, mask); +__KVM_SYSCALL_DEFINE(sched_setaffinity, 3, pid_t, pid, size_t, cpusetsize, cpu_set_t *, mask); #define kvm_free_fd(fd) \ do { \ diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c index 557e393c223b..edcaf0fbe20c 100644 --- a/tools/testing/selftests/kvm/rseq_test.c +++ b/tools/testing/selftests/kvm/rseq_test.c @@ -75,7 +75,7 @@ static void *migration_worker(void *__rseq_tid) { pid_t rseq_tid = (pid_t)(unsigned long)__rseq_tid; cpu_set_t allowed_mask; - int r, i, cpu; + int i, cpu; CPU_ZERO(&allowed_mask); @@ -96,9 +96,7 @@ static void *migration_worker(void *__rseq_tid) * stable, i.e. while changing affinity is in-progress. */ smp_wmb(); - r = sched_setaffinity(rseq_tid, sizeof(allowed_mask), &allowed_mask); - TEST_ASSERT(!r, "sched_setaffinity failed, errno = %d (%s)", - errno, strerror(errno)); + kvm_sched_setaffinity(rseq_tid, sizeof(allowed_mask), &allowed_mask); smp_wmb(); atomic_inc(&seq_cnt); -- 2.55.0.508.g3f0d502094-goog