From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) (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 7287244D685 for ; Fri, 29 May 2026 22:23:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780093389; cv=none; b=lBAt3Dxr2tLFcFOOvd20ERY3Q91YmM7umlgPNY3w7r6w1Uj5lZ8LaQkiG3J42jDx9jkeitEo1TE5V5JPhPpUfIEw6B+iY6CE0EHN8Oe+9t1526joVm/zl8Ardo7YMUXbX9eBmxbGgg1KxZ10wt0aZckmVryu6TQjGCBTng6i5zE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780093389; c=relaxed/simple; bh=Ti1Cn/2X567vIP0NAUi9gjSta7WxFw3xhtt5JfIZGN4=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=EkYUNpV6htHE2kmApn6tc9HaphwIC52sjgXLM2DQfMlk354X5EDEXKhoepv4pwKSGOv7wOmYIhQUS7aweDGtBrFaNimMlm479cyMkLV4a92m8KegMOz0hqWcnRWY7ON2khwMQJrcavAmdKaaC0UBwPeuwTc7cWt3TGLZ84Nvs10= 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=SeK0Aelb; arc=none smtp.client-ip=209.85.214.201 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="SeK0Aelb" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-2bf1845bddfso16186905ad.1 for ; Fri, 29 May 2026 15:23:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1780093388; x=1780698188; 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=C+zNop4iFEAB4FpwyQmbvIE0zFzjyJkNdQov+dfVU9Y=; b=SeK0AelbGS0+kvO7zIBBx3oCqA9pIFhqI0U7jcrJy38jHGfxx7DWirJ50GbFX9KLNx +FVIMSMQt+R/jkGKC3fp3VIU7itGGXFn7jOkioMxqVLeuRFD9NUIXNZTSIexDueyVpMa TSmWCPtSRKO+oX1mqzpumj//xRSx2XacMfhAvPV2c8YWZt6IoePcAsJJIebplUfO3Mzs +/sWCgJaIyTc19A4Jdafq1tMldec66lbMEzRfGcf1axKqgss84ZWun4/7NTIfpRIFgIJ VSB0rUvT4o6uvYd8K/8LaWIvCvqlgDwSbXj4nfvsU8Qml6raY+9oGru9MifV8Zah6dWV MreA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780093388; x=1780698188; 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=C+zNop4iFEAB4FpwyQmbvIE0zFzjyJkNdQov+dfVU9Y=; b=CAWTJQ415HV/h1vqvTdDd8XiWZbgXn5SOxmEtIFZmqzsYoux31PM5+ux/H6nGWjTF6 C0Yn4UdRH+Sh/u6owWvZzFyh9zau0SS7xa3Ga1dnmltNdHRLpSTKnGmIcI8DRlZHy4QB d4DZAHYgvor/gEM9p7c4ABxmG4+mZPyfoUm9Eq9/ULXZabNrewHFQ4V4ZZp2b5zni26u rsKjJYALFg1nXfX7AokmIuNXUGcHoodk2oMpuKMN7xcezwg/nJiG+dgnw0KNA+aENldk 0td+Ks2UaKWo6gJUD6Hfds1/Z6HzQRfSyCh5b8OPjglTvf7XROn1MHmLicCkVvn4qUHu RycQ== X-Forwarded-Encrypted: i=1; AFNElJ+ug4IqFGFRJYSBw8MQbe++bBn/pZnPzDM5bcV2rmdb3kCPPreqcJ9hc6LXCRPQEAN0PHswDz2XbtyRStQ=@vger.kernel.org X-Gm-Message-State: AOJu0YyRQ3LBmogoJ7wHKVbxc9OnsdiWSnRvZtrNZ4TuTHnk/BPNmYBj KyN+Y7ECFjFpJ0OuWuV547KamNlccvqe0Pn/SLVzNY6LLpe+IIxam1rQGZNdzYzBbUVX+eoRFa0 bD/mOQQ== X-Received: from pgww11.prod.google.com ([2002:a05:6a02:2c8b:b0:c85:f23:dde3]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:e88c:b0:2b2:4d36:7aa with SMTP id d9443c01a7336-2bf368859d8mr18740315ad.35.1780093387619; Fri, 29 May 2026 15:23:07 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 29 May 2026 15:22:04 -0700 In-Reply-To: <20260529222223.870923-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260529222223.870923-1-seanjc@google.com> X-Mailer: git-send-email 2.54.0.823.g6e5bcc1fc9-goog Message-ID: <20260529222223.870923-22-seanjc@google.com> Subject: [PATCH v3 21/40] KVM: x86: Move eager_page_split to mmu.{c,h} From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini , Vitaly Kuznetsov , David Woodhouse , Paul Durrant Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Yosry Ahmed , Binbin Wu , David Woodhouse , Kai Huang Content-Type: text/plain; charset="UTF-8" Move KVM's eager_page_split module param to the MMU, as it is very much an MMU knob. No functional change intended. Signed-off-by: Sean Christopherson --- arch/x86/kvm/mmu.h | 1 + arch/x86/kvm/mmu/mmu.c | 3 +++ arch/x86/kvm/x86.c | 3 --- arch/x86/kvm/x86.h | 2 -- 4 files changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index 0eaea2d4fac9..d30676935fff 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -13,6 +13,7 @@ extern bool tdp_mmu_enabled; #define tdp_mmu_enabled false #endif extern bool __read_mostly enable_mmio_caching; +extern bool eager_page_split; #define PT_WRITABLE_SHIFT 1 #define PT_USER_SHIFT 2 diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index b8f2edf2cfeb..e4d971d42f0e 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -114,6 +114,9 @@ module_param_named(tdp_mmu, tdp_mmu_enabled, bool, 0444); EXPORT_SYMBOL_FOR_KVM_INTERNAL(tdp_mmu_enabled); #endif +bool __read_mostly eager_page_split = true; +module_param(eager_page_split, bool, 0644); + static int max_huge_page_level __read_mostly; static int tdp_root_level __read_mostly; static int max_tdp_level __read_mostly; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 20eeff79b46d..be421f467563 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -177,9 +177,6 @@ module_param(force_emulation_prefix, int, 0644); int __read_mostly pi_inject_timer = -1; module_param(pi_inject_timer, bint, 0644); -bool __read_mostly eager_page_split = true; -module_param(eager_page_split, bool, 0644); - /* Enable/disable SMT_RSB bug mitigation */ static bool __read_mostly mitigate_smt_rsb; module_param(mitigate_smt_rsb, bool, 0444); diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index a0e68eaf1f80..635a21bfa681 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -415,8 +415,6 @@ extern int pi_inject_timer; extern bool report_ignored_msrs; -extern bool eager_page_split; - static inline void kvm_pr_unimpl_wrmsr(struct kvm_vcpu *vcpu, u32 msr, u64 data) { if (report_ignored_msrs) -- 2.54.0.823.g6e5bcc1fc9-goog