From patchwork Thu Feb 27 02:18:37 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 13993566 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (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 4090422B5B8 for ; Thu, 27 Feb 2025 02:19:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740622782; cv=none; b=o/Zx1QkA6c6H7ykIXkLUpJpKzfT8nPrwhO8uftY0IBXAgYyxIB4cfOMtsfHL0x5oMfjPdwqubuFbr3LFSxMUEIZ4JPKpGXWE06+IMVAHlCVSMv9FPbizuxzAmnS0Oe/rcy/Q36Q2nWIp4Yc+TdO42L5l9Yp/P8sNZ5UT+/7UeFU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740622782; c=relaxed/simple; bh=W77bDJioIxxlTCWtlgTvtUdQUjN+l9y/G05gekf8Apg=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=B/lsceSUj0QXRFj3LnnOx4z+XeH5sStRWKo7XLIuuvF6gsGAgujyKipxPQhcd58qaAukjt+0EUxU6xPHSanS9nnN2aB8tLpvCxPdv5rejV2iRujPNytopW2DisfrjTJ/3QaRO8I1Bxh5iXEYGtw/go14k3oBhNMQk3Cev+a4f/k= 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=U+ysUmz6; arc=none smtp.client-ip=209.85.216.74 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="U+ysUmz6" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-2fe8fa38f6eso1027027a91.2 for ; Wed, 26 Feb 2025 18:19:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1740622780; x=1741227580; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=kU2lFcUz0RS/25JB9tsyegi1crsFJmJvQFST0gISHao=; b=U+ysUmz6K0zL0GFvBosFujLDT7MKwULHVNue4bITt0NaNhwzgJf1XdP1JpMp4qXUSA scRLReAuNFwgNPIf0JedSMaQ1FCmx9rei6uncVsB2FFh/RELhZdkb+b/omGFrZtvtE/M 8/p+IVNvUChpZQYYNnVDxTQFUG7+AzzePNgYcWrCEf9RDGpW21BDps2vKCpBj/kJy5/R s+j5mevY7qdNugYRay7mn5nvfG0kEaKtmUhgMDzuF3N3EVAQVG1+c4K5BJX60enue39p J5gDTOA1bsKhHm6tHDKbl2Ldsv0KJQ12MQJWgeiqABQj7tFnYhc10XK3f2uSNQpbe8bl hNDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740622780; x=1741227580; h=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; bh=kU2lFcUz0RS/25JB9tsyegi1crsFJmJvQFST0gISHao=; b=HjgFRw+x0kS2AiE37rlKs5w9L1T9bZDtPXtT1Nzc0JDexDiZd7S9928qQLAtzFlg2/ ezuMq4xPle2e2zgMAzfwlZoLh1tEQ9Tic8XlcaF/bQwf0PNpaU8Y+zyyVq+1X2RpP0RV jEAAn0HRDy48ERnN+Pz9ejldUsAcHQLPpJ4elWO+BjlVGF5AqJopc0xjn75okKLyiPl+ Wa4Lise+PN3Z2WaVBibrPryDkN9zr486KZpLD2sxKnQHVauoZF3ngFLE/m0Wx9VS2QP2 5qRnloeMoTTPhhrWJ+F7wCgK1Ffvw5+ov6gUnaSn5sPx40fmme66Qlb16N66bKhFwIs9 /9XQ== X-Forwarded-Encrypted: i=1; AJvYcCU9vaQ7YgnW/QfCoB8y2xOz+peCQKnJrgMwzQlotJbRwIrwUjWHK0SRSR/wA0idlf0IsfY=@vger.kernel.org X-Gm-Message-State: AOJu0YwVpHM6xElRNVK7nCyCR+ni4HBlWwZflWCTDFRWuDReusDt/954 fPjKBUHTrgTO9IxkHxyXp+qC6RMxT7gbVnU3QzqJ8xPaHN6d25s6VQOtPCs6ioCyPOpoMDSx13W ccw== X-Google-Smtp-Source: AGHT+IGPqE+K3f21q2ak8FFNHYsAgDpuaP0E98T4gncRvFB5lVR5BPc4qf0azJ1lc37DAZgmd7FgPnilX0Q= X-Received: from pjbsh7.prod.google.com ([2002:a17:90b:5247:b0:2f2:e97a:e77f]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90a:fc44:b0:2f6:f107:fae6 with SMTP id 98e67ed59e1d1-2fe68cf3f5fmr12813327a91.23.1740622779809; Wed, 26 Feb 2025 18:19:39 -0800 (PST) Reply-To: Sean Christopherson Date: Wed, 26 Feb 2025 18:18:37 -0800 In-Reply-To: <20250227021855.3257188-1-seanjc@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250227021855.3257188-1-seanjc@google.com> X-Mailer: git-send-email 2.48.1.711.g2feabab25a-goog Message-ID: <20250227021855.3257188-22-seanjc@google.com> Subject: [PATCH v2 21/38] x86/pvclock: Mark setup helpers and related various as __init/__ro_after_init From: Sean Christopherson To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "Kirill A. Shutemov" , Paolo Bonzini , Sean Christopherson , Juergen Gross , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Ajay Kaher , Jan Kiszka , Andy Lutomirski , Peter Zijlstra , Daniel Lezcano , John Stultz Cc: linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev, kvm@vger.kernel.org, virtualization@lists.linux.dev, linux-hyperv@vger.kernel.org, xen-devel@lists.xenproject.org, Tom Lendacky , Nikunj A Dadhania Now that Xen PV clock and kvmclock explicitly do setup only during init, tag the common PV clock flags/vsyscall variables and their mutators with __init. Signed-off-by: Sean Christopherson --- arch/x86/kernel/pvclock.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index b3f81379c2fc..a51adce67f92 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -16,10 +16,10 @@ #include #include -static u8 valid_flags __read_mostly = 0; -static struct pvclock_vsyscall_time_info *pvti_cpu0_va __read_mostly; +static u8 valid_flags __ro_after_init = 0; +static struct pvclock_vsyscall_time_info *pvti_cpu0_va __ro_after_init; -void pvclock_set_flags(u8 flags) +void __init pvclock_set_flags(u8 flags) { valid_flags = flags; } @@ -153,7 +153,7 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall_clock, set_normalized_timespec64(ts, now.tv_sec, now.tv_nsec); } -void pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti) +void __init pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti) { WARN_ON(vclock_was_used(VDSO_CLOCKMODE_PVCLOCK)); pvti_cpu0_va = pvti;