From nobody Mon Feb 9 09:40:21 2026 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (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 E8E8E280326 for ; Fri, 16 May 2025 21:30:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747431017; cv=none; b=ZDfA6uh/WBPr/4Tb8RxD81iFMlLO5VBmdrxWuMJge58bb1igNfnWH2ldKzyK/4PB5Zjs/szJT30X/La0/12KagIs60GJgP/obb38SbYE8dWpWDLNe1O1rW+jM2dOx7UIN6o1SIbk33FG2JbptwbB8vdv19EPo8a3MsVrUzkprIU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747431017; c=relaxed/simple; bh=NZvCSJRzuz1KajlGW5YiPv7YN+M07Tdox9/J35tpIEQ=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=K1zI7fhqH4IP5y/saFmG5ZCBb5qSNDeXQbBIe3cp/eZ2p3Ej5DAEF5shhdu53B/kDtAU0jEXVZZ6oQH9pXFZzE54Dvfsdv+apLeL67lSy8DSRPFsgrcC+04KhSEIa5Uw5oB5ue4b7GiWdKm7FZnRrlsIWMtUbYaVjmAnbFfbvz4= 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=0d0RHOkz; arc=none smtp.client-ip=209.85.215.201 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="0d0RHOkz" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-b26e33ae9d5so2375643a12.1 for ; Fri, 16 May 2025 14:30:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1747431015; x=1748035815; 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=7Dga/slcZZ6fKTxbenqYjayajDYVeAnUirYr9Z43Kqg=; b=0d0RHOkzaqcA9atnHe/JJClOr0TmFScvdbmO9kJtssIykG1Hg5H5wldUnFjcgH3cKj kPWzJ+5s9bfbp2/OPBZYwoh9GHTzuEdj7OaaOEyZ5y2T+tX52CKCCNt/h9wgZ48VZEy/ d5pdP0vL9h3kIg+seXAx9s4en8TqGf6jB9pHUMeYdGk8+ftd0+V1V67cx+1/I+33CL3a hVURrEJnyllWoJaiCNbey7xvxoROBdeJcvgz+5FdnjkAfNwIRt3UT4YkYqp9M/saUTIQ Df0D/XpZjil2qDN/5A0vH03R10W9fK9CJMtOurvhrALHLXNe1Ll9Czk+LSgeUjHui6w3 cYqA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1747431015; x=1748035815; 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=7Dga/slcZZ6fKTxbenqYjayajDYVeAnUirYr9Z43Kqg=; b=YCUBD6b8mdZ5izEwIAmXuCvd0rNKW21vg02h+CwDq4JPLPweuI/hygCANb903qL+hS 2Pu0Z6IcaxATYK5lwhpVITNU2P31yblvod8R4bxAKWR+pIdVa0lEvT03bLTTfsOo/uuj e5RHsmb9+oNloz+/D8l5R3kAbs7SfCPs9jc23YX9IWrODXPQtqMB8SSB8bNMoRwkknjG Li4IvQp31GP/vfwoKUEhTPGqd8Gb1LVyK6GklPX1nbOX2TX9dJl68BGU6CA2rb3xAvg6 dqcQ8wpkzHDxM6nxT3MNkhn9+GDXmT+f9VD1cQDBK8Bzunz6DXRbfGSPuKI+/847j690 RP9g== X-Gm-Message-State: AOJu0Yx8xAQlQsZoJBbEPwr30SMLhhQzADqN9PVe665PSGCIKjFwRBTu fACifkPRigGBsN3BFejSs6GWMsy8XC+N2J2zq7zqg5BuWEjLww1hv8x03UKeMtNSXBvhJLrSq1a Yj7iS7Q== X-Google-Smtp-Source: AGHT+IEmIT1oJ5BehpO/x/61kMltmH/PXqlkOkfjC0VyUyY4O6dvRDZ3QTMaLlJYbCRtNBQEKJ+Vu2+xC7I= X-Received: from pjbpv17.prod.google.com ([2002:a17:90b:3c91:b0:30c:4b1f:78ca]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a21:3409:b0:214:f8b1:e385 with SMTP id adf61e73a8af0-216fb192726mr7093001637.2.1747431015121; Fri, 16 May 2025 14:30:15 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 16 May 2025 14:28:31 -0700 In-Reply-To: <20250516212833.2544737-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250516212833.2544737-1-seanjc@google.com> X-Mailer: git-send-email 2.49.0.1112.g889b7c5bd8-goog Message-ID: <20250516212833.2544737-7-seanjc@google.com> Subject: [PATCH v2 6/8] KVM: x86: Use wbinvd_on_cpu() instead of an open-coded equivalent From: Sean Christopherson To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Sean Christopherson , Paolo Bonzini , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, dri-devel@lists.freedesktop.org, Zheyun Shen , Tom Lendacky , Kevin Loughlin , Kai Huang , Mingwei Zhang Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use wbinvd_on_cpu() to target a single CPU instead of open-coding an equivalent. In addition to deduplicating code, this will allow removing KVM's wbinvd_ipi() once the other usage is gone. No functional change intended. Reviewed-by: Tom Lendacky Signed-off-by: Sean Christopherson --- arch/x86/kvm/x86.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index f9f798f286ce..b8b72e8dac6e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5009,8 +5009,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cp= u) if (kvm_x86_call(has_wbinvd_exit)()) cpumask_set_cpu(cpu, vcpu->arch.wbinvd_dirty_mask); else if (vcpu->cpu !=3D -1 && vcpu->cpu !=3D cpu) - smp_call_function_single(vcpu->cpu, - wbinvd_ipi, NULL, 1); + wbinvd_on_cpu(vcpu->cpu); } =20 kvm_x86_call(vcpu_load)(vcpu, cpu); --=20 2.49.0.1112.g889b7c5bd8-goog