From patchwork Tue Apr 29 11:32:33 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Valentin Schneider X-Patchwork-Id: 885942 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A8FD277030 for ; Tue, 29 Apr 2025 11:41:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745926921; cv=none; b=gLK57jngM332NB8n5F0qmqqOl7Q6znjJ5FWZOLXswTelyQ5isdUy0Gk9i0VnrAk53zyAKY+bmjDH4d078mkcTmgeUPkq5ba7U6dLhUzChB+7Fws7dLDXtFY8FqVZBjprRO/boYvbeqmt8Xut0XgE8NH4eWjdpwoq/4tgTiuu4OU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745926921; c=relaxed/simple; bh=kxWC1t7/BhbfuL23Afr2KNhXz8vZgT9DHhKCYr4vZLU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tM68Xed6CZjgdMANEUP/1Zy/cPpOPnwBkz8h1lf42iFHYQeA7C+wO7X3sGUXMgliZHwHuHkTnKwstoSnUXYLPBQiNHHYsjw4mEzwZ1VKbbBhIZ9gG6L0t/ZU2YUE2gdO93i+U0uSJX58dGjBJY2eOWTMnSpjjddKfWI4jzL6NbE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=VzqDFpvG; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="VzqDFpvG" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1745926918; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=pOR+/fkeCQEE32OWhR0BqyOD5/ykiIz6VrqIxRu0TPQ=; b=VzqDFpvGzyJDuKiBfrm6YHBa8iDKcnXHqooOYr4ug0r6IDQmAqhuhiMZC5ebpMJuZ368My fXBy/sRDnlxvlPkki+7BTGNfr8aTuUfuLBzXvJibRcz0PXq3Xp15n4uiXxSG1iOHDWqOLv O2enRcvlD9Bo48qdlHZ2U43gk3CDv9k= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-203-A84IH6JAPCeA7cHwNRTckw-1; Tue, 29 Apr 2025 07:41:57 -0400 X-MC-Unique: A84IH6JAPCeA7cHwNRTckw-1 X-Mimecast-MFC-AGG-ID: A84IH6JAPCeA7cHwNRTckw_1745926913 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (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 mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 219821800360; Tue, 29 Apr 2025 11:41:53 +0000 (UTC) Received: from vschneid-thinkpadt14sgen2i.remote.csb (unknown [10.45.225.102]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 227BD19560A3; Tue, 29 Apr 2025 11:41:23 +0000 (UTC) From: Valentin Schneider To: linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, linux-perf-users@vger.kernel.org, kvm@vger.kernel.org, linux-arch@vger.kernel.org, linux-modules@vger.kernel.org, linux-trace-kernel@vger.kernel.org, rcu@vger.kernel.org, linux-hardening@vger.kernel.org, linux-kselftest@vger.kernel.org, bpf@vger.kernel.org Cc: Sean Christopherson , Juri Lelli , Marcelo Tosatti , Yair Podemsky , Josh Poimboeuf , Daniel Wagner , Petr Tesarik , Nicolas Saenz Julienne , Frederic Weisbecker , "Paul E. McKenney" , Dave Hansen , Juergen Gross , Ajay Kaher , Alexey Makhalov , Broadcom internal kernel review list , Russell King , Catalin Marinas , Will Deacon , Huacai Chen , WANG Xuerui , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , Peter Zijlstra , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , "Liang, Kan" , Pawan Gupta , Paolo Bonzini , Arnd Bergmann , Jason Baron , Steven Rostedt , Ard Biesheuvel , Luis Chamberlain , Petr Pavlu , Sami Tolvanen , Daniel Gomez , Naveen N Rao , Anil S Keshavamurthy , "David S. Miller" , Masami Hiramatsu , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Kees Cook , Shuah Khan , Masahiro Yamada , Alice Ryhl , Miguel Ojeda , "Mike Rapoport (Microsoft)" , Rong Xu , Rafael Aquini , Song Liu , Andrii Nakryiko , Dan Carpenter , Brian Gerst , "Kirill A. Shutemov" , Benjamin Berg , Vishal Annapurve , Randy Dunlap , John Stultz , Tiezhu Yang Subject: [PATCH v5 16/25] KVM: VMX: Mark __kvm_is_using_evmcs static key as __ro_after_init Date: Tue, 29 Apr 2025 13:32:33 +0200 Message-ID: <20250429113242.998312-17-vschneid@redhat.com> In-Reply-To: <20250429113242.998312-1-vschneid@redhat.com> References: <20250429113242.998312-1-vschneid@redhat.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 The static key is only ever enabled in __init hv_init_evmcs() so mark it appropriately as __ro_after_init. Reported-by: Sean Christopherson Signed-off-by: Valentin Schneider --- arch/x86/kvm/vmx/vmx_onhyperv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx/vmx_onhyperv.c b/arch/x86/kvm/vmx/vmx_onhyperv.c index b9a8b91166d02..ff3d80c9565bb 100644 --- a/arch/x86/kvm/vmx/vmx_onhyperv.c +++ b/arch/x86/kvm/vmx/vmx_onhyperv.c @@ -3,7 +3,7 @@ #include "capabilities.h" #include "vmx_onhyperv.h" -DEFINE_STATIC_KEY_FALSE(__kvm_is_using_evmcs); +DEFINE_STATIC_KEY_FALSE_RO(__kvm_is_using_evmcs); /* * KVM on Hyper-V always uses the latest known eVMCSv1 revision, the assumption