From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f72.google.com (mail-pj1-f72.google.com [209.85.216.72]) (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 F2365449B0A for ; Fri, 31 Jul 2026 17:06:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785517586; cv=none; b=dh3Ivv1IXMgKJ/2Z1oaryY8sdaaY668AgezBNBeAkmQQ5qo3bb2m/MHfc7vZlPXKVV03yIp1JAvVfNwkhc0XcHffhDgnd00KknycJ2QStTfIf7HSz+cR70GDIlq8cZt/S0+fipIpCLAlGbVeLDhVyBU0bQ81WTxX5xM3FkovOfk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785517586; c=relaxed/simple; bh=jIqegcMSdQEr3CCSBl7CEcF3KSy6gnzkLIXn/FjtTSY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=NcczFZObr3nUNkjFODr1O/z0iqgjEbvlK1ZVWjDyXPH5182kN+2U5dRQ/5n7kRWAuVnTf2DAthuxvgqzDpRJE1upLH+VBjUqd42lb6hEIPoH0SJXGOyA0L9ZvpCmsc4E6oKMyDWlGFNz43TTBRImvtSAytGZzS3FnWHCTHq8u5w= 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=MsRsPun5; arc=none smtp.client-ip=209.85.216.72 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="MsRsPun5" Received: by mail-pj1-f72.google.com with SMTP id 98e67ed59e1d1-38e7ff7b375so1349766a91.1 for ; Fri, 31 Jul 2026 10:06:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1785517584; x=1786122384; 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=MsRsPun5r+31n4MEE5OC2a2TjeT/PwKI6NQkOO5lXYFmGZQxpOPgj1ADecWlcoaM49 MD43Z+23JEmi63wnEIHyjAoiU6eGrAamppnhi6+Uz/L9xLrm9uVciCh7lQHvU6B/tjKE juP2o0kgs6agzJEuOghMPEaAVHTxCoQPiMw5FoIGHeaFmD6y7T+cfZwbaxPY9XHZLNaF 4y4lAyZv/tWAumUQpu0CODNSk5JP3IMEbJhsVtd8R4MHyWt7AeHC64Pc7v/1PPW5B7t6 AtLHsrSSoQm4TYTfIVTKJqX24yYZcf3sdbb5pC8tGG/R3MII9aeaXDTcz/M6Qg8QAGxO Pxuw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785517584; x=1786122384; 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=YTaDtjUfv3DVBZL70QKQ9OhrSdy5TqPETmPAGTu32YToSee8cHs1ypk/mq8V6kcyQ0 +0hFUgDJqRuPmeh0nHlkZPXjxPj5YiDaEBDpt1XL5la6WOKwk+FOR3/VKkqHDfV6zmj3 H/Xbt99fpgdG+sG+xFnQeTMJvhEAZeyebi+TsxggDFjvCRV04cxiaxvleG9NhH7gNegq eeNcXohysp91HfOc31wsCP/9od6JxHB5kRJj+8b46J2Hin6/k+bSDIZpH27q4iiz5Ql8 J5h4qhCG9CBztRjNHAlLSaCOfrSBD9eZ5CMTBU49drh/z3H9S7lezzWkbHscqdr9yE+c +MMw== X-Forwarded-Encrypted: i=1; AHgh+RoKwzFFqynhzWiaid1hOF2JQaBaHTvptPSY0S3pUy0uAQNo2ejdKe66GxzxGH2YTa8AL/HJw7Y=@lists.linux.dev X-Gm-Message-State: AOJu0YwVxJ2XvPmHPNBzQ7SVrcxY92b44lqMfEeMeSBd7L/6XcsdCgxo 0QhCRqjztqAxKP2o+dYYZfUTteZkSMyCAF0qAWAmyvIErtMBkHA7mpOdxkvT2vPglhIpTVHYliT X7dg3aQ== X-Received: from pjso10.prod.google.com ([2002:a17:90a:c08a:b0:381:171e:961c]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:280a:b0:37f:c28a:de61 with SMTP id 98e67ed59e1d1-38fbc45521dmr583105a91.17.1785517584041; Fri, 31 Jul 2026 10:06:24 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 31 Jul 2026 10:06:08 -0700 In-Reply-To: <20260731170619.2620845-1-seanjc@google.com> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260731170619.2620845-1-seanjc@google.com> X-Mailer: git-send-email 2.55.0.508.g3f0d502094-goog Message-ID: <20260731170619.2620845-2-seanjc@google.com> Subject: [PATCH v2 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