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 CFF40359A6F 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=1785527779; cv=none; b=Wf6GlNtLTRfXyvG5rHL6whRPATX+1NswcQkc30beabCzSTW5JzEdAvmGYSaVaA5/aoNGlIcTf0rizpCimMPnT5OP91jfm0jCTX+y4N1DdgigGdBzYmlPep3vKXgBDCXbWtSamNeJOcIkTVk3bGXPIamCO+Tc46G0CjDDjCrrAH8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785527779; c=relaxed/simple; bh=jIqegcMSdQEr3CCSBl7CEcF3KSy6gnzkLIXn/FjtTSY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=IPeQuh0Pm8xqpvbz0yUhyuQHgyJgGPVgn3lT8N3yuhUkeFayNHnlkP+o0SipGTw6b0KjvY8JhUyd0v0skmRDp+qDzezktJNwjSlkrfpTLx6eVbEQ+4DRDJN3spUS1ukit2VjISY02bbGzXXcraULEnHkihswnFPqA2wbipOxGto= 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=ndzyO6RP; 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="ndzyO6RP" Received: by mail-pf1-f198.google.com with SMTP id d2e1a72fcca58-84e01a62d99so1839540b3a.0 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=lists.linux.dev; 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=ndzyO6RP6wdZ8v+eShFw1iCBzVZO+KOWPQfvJzEatQ5U7haq9CFpgMzBTDWv6NAI2X Q6w17KJN5trGBnJBe7cRJSYoqicG8i7WyBI0PfFQj7XhyP2zXfQDmUs+V+gbRU41S7dz Ijrd/FklH8tDYdf42haGkgUJJSm7Q9wZtsYpHZ+1gnVPyQHG0OK4i4IUr7lEuMQ0xok0 Ula+DvhF6MIpoMXVdIV+q9G8kMkMk5DUeo2XRCN1PppioO5m9oBw/M+qFx53mfLRO1zS 0agaysSkCBqBL0XCWBMv/JvFM9OJANSEdhnEZ8zUzMF1yDbtzQor9V5ONr1IiX/0mpcw 7MqQ== 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=LnmzEuH+Q/G7AQHKmgt7GQIA0xXmmIEAYRR4mb/RQl4JxScjujy2ppHRjMZLAyKjEA IziRPSlWLYIolxhSDx0gHadLiw2RSMRL4eLioot5v3Kiss+FLk66fNkZxjlt2u2peYB9 +52Joruw2ue9iqUem9wmZvWla5nFJest9Oc8l9VpKFZY5GhGnlYRfvO594wmcKxK6V8g yA+nJlL4xCZKvwlnuiSHYdS8XMuS6h6qyY3Smt3oQGVzKp58NYC3OnJypoLQpccA3dRu r53ytUtlijYGXs1CNgRssx8PFZU+N7/KGDZdqL3FB/EK2iFoLdiEqaunA8j/LvQ+rk0I TfNQ== X-Forwarded-Encrypted: i=1; AHgh+RqlfB3ib8nnoxc6f63uZNGdaFHQa8wP34p+YQ9fqfcUmxxnVwONKA2tc1Rpp0NL06X9QHFZKgI=@lists.linux.dev X-Gm-Message-State: AOJu0Yz1YdrnzLbm21+3KuC923PaN39cbMJvxNDE6HE4ZgVXL9MiIdQL tj7tgy7apA26jk9GYXMADENMBymBjtTv7Vl8AEqAUysYn9EBNG+wa3zb27dtZLf9QyK95GDf61v HEEua3A== 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: kvmarm@lists.linux.dev 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