From patchwork Mon Dec 2 07:31:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirill A. Shutemov" X-Patchwork-Id: 13890091 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 D4AC4481A3; Mon, 2 Dec 2024 07:31:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733124717; cv=none; b=tDLUd2QtLW+bSOQj+KQi3realXEMQOnUY+rY46sEEKxGK/B9dOf94NazL+D3eD+hzY0/1gHDTiUhLxuXvaDhCFOhsIt/KfWoOSeHzbapU0ML+e86eMKjF2/KukY3X2nIuPFNe0wCq5US+jDhn6fornc75KmSbljJfjy5EzizBSk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733124717; c=relaxed/simple; bh=M15az0QjHwqSnaRdQ3vhhyKn2F1zyuHqY37H2ln+rKo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=TTCd7Serp7RBEiEDhyeP3NfLCoypPx+JIl5yJ5iCPR4H2X+ZQ6fsr6qWyTZxagb4r5hs8AaJ0hMnWQjKT0bLaQ8rwFyk4hZvC1Tt7o9k5rBrPMJpboQ8E0Vdyz/g6N1sjrz57LEhgHsdAwStXhZQvOvUHpQph1wfgsuv9DE3j64= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.helo=mgamail.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Fkzbt0Lb; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.helo=mgamail.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Fkzbt0Lb" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1733124716; x=1764660716; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=M15az0QjHwqSnaRdQ3vhhyKn2F1zyuHqY37H2ln+rKo=; b=Fkzbt0LbwANoVMZOnOMOGN9KegQmN+4B2twy60b+dacxO1/ZRMn8sDyK nmbXskvoMWdQ9/pta7s0KPr7M1JIOjWiwhB0dkptCT4AHcVhHdZkPLlNI sosDAThdXXUULFw/n4/lNakbAgBOc93euzbRW6GaxWTkGyw0WMdCCff0g KLemb1iDADJDNqG1VVxhDWK6QzmUcIt1gNAUYS++imkPkAl0D4ZfPdowF XQuqr38nug6y1uvkotcJOWr5drkMr6K9jZJ1JvT6N6cqI+flMJkiBRzak 26bMcXZ1khCXMmZlRuG7bK+EDqAG8K2oYKbweCyX3jpmkcSiezqloInw3 A==; X-CSE-ConnectionGUID: kCbXoUWcSSOgDEpG9C5c3Q== X-CSE-MsgGUID: CpOzjEvMRA6nQFa4ftyZ0Q== X-IronPort-AV: E=McAfee;i="6700,10204,11273"; a="36943343" X-IronPort-AV: E=Sophos;i="6.12,201,1728975600"; d="scan'208";a="36943343" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Dec 2024 23:31:55 -0800 X-CSE-ConnectionGUID: 5gTE3+swTUCPaC+Chly83w== X-CSE-MsgGUID: 9RWjv968Rkar/vBJ99Abxw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,201,1728975600"; d="scan'208";a="93408303" Received: from black.fi.intel.com ([10.237.72.28]) by orviesa007.jf.intel.com with ESMTP; 01 Dec 2024 23:31:49 -0800 Received: by black.fi.intel.com (Postfix, from userid 1000) id B58773B2; Mon, 02 Dec 2024 09:31:47 +0200 (EET) From: "Kirill A. Shutemov" To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org Cc: "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , "H. Peter Anvin" , Paolo Bonzini , Vitaly Kuznetsov , Juergen Gross , Boris Ostrovsky , "Kirill A. Shutemov" , Gaosheng Cui , Michael Roth , Tom Lendacky , Ashish Kalra , Kai Huang , Andi Kleen , Sean Christopherson , Xiaoyao Li , linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org, Dave Hansen Subject: [PATCH, RESEND] x86/mtrr: Rename mtrr_overwrite_state() to guest_force_mtrr_state() Date: Mon, 2 Dec 2024 09:31:39 +0200 Message-ID: <20241202073139.448208-1-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Rename the helper to better reflect its function. Signed-off-by: Kirill A. Shutemov Suggested-by: Dave Hansen Acked-by: Dave Hansen --- arch/x86/hyperv/ivm.c | 2 +- arch/x86/include/asm/mtrr.h | 10 +++++----- arch/x86/kernel/cpu/mtrr/generic.c | 6 +++--- arch/x86/kernel/cpu/mtrr/mtrr.c | 2 +- arch/x86/kernel/kvm.c | 2 +- arch/x86/xen/enlighten_pv.c | 4 ++-- 6 files changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/x86/hyperv/ivm.c b/arch/x86/hyperv/ivm.c index 60fc3ed72830..90aabe1fd3b6 100644 --- a/arch/x86/hyperv/ivm.c +++ b/arch/x86/hyperv/ivm.c @@ -664,7 +664,7 @@ void __init hv_vtom_init(void) x86_platform.guest.enc_status_change_finish = hv_vtom_set_host_visibility; /* Set WB as the default cache mode. */ - mtrr_overwrite_state(NULL, 0, MTRR_TYPE_WRBACK); + guest_force_mtrr_state(NULL, 0, MTRR_TYPE_WRBACK); } #endif /* defined(CONFIG_AMD_MEM_ENCRYPT) || defined(CONFIG_INTEL_TDX_GUEST) */ diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h index 4218248083d9..c69e269937c5 100644 --- a/arch/x86/include/asm/mtrr.h +++ b/arch/x86/include/asm/mtrr.h @@ -58,8 +58,8 @@ struct mtrr_state_type { */ # ifdef CONFIG_MTRR void mtrr_bp_init(void); -void mtrr_overwrite_state(struct mtrr_var_range *var, unsigned int num_var, - mtrr_type def_type); +void guest_force_mtrr_state(struct mtrr_var_range *var, unsigned int num_var, + mtrr_type def_type); extern u8 mtrr_type_lookup(u64 addr, u64 end, u8 *uniform); extern void mtrr_save_fixed_ranges(void *); extern void mtrr_save_state(void); @@ -75,9 +75,9 @@ void mtrr_disable(void); void mtrr_enable(void); void mtrr_generic_set_state(void); # else -static inline void mtrr_overwrite_state(struct mtrr_var_range *var, - unsigned int num_var, - mtrr_type def_type) +static inline void guest_force_mtrr_state(struct mtrr_var_range *var, + unsigned int num_var, + mtrr_type def_type) { } diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index 7b29ebda024f..2fdfda2b60e4 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -423,7 +423,7 @@ void __init mtrr_copy_map(void) } /** - * mtrr_overwrite_state - set static MTRR state + * guest_force_mtrr_state - set static MTRR state for a guest * * Used to set MTRR state via different means (e.g. with data obtained from * a hypervisor). @@ -436,8 +436,8 @@ void __init mtrr_copy_map(void) * @num_var: length of the @var array * @def_type: default caching type */ -void mtrr_overwrite_state(struct mtrr_var_range *var, unsigned int num_var, - mtrr_type def_type) +void guest_force_mtrr_state(struct mtrr_var_range *var, unsigned int num_var, + mtrr_type def_type) { unsigned int i; diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.c b/arch/x86/kernel/cpu/mtrr/mtrr.c index 989d368be04f..ecbda0341a8a 100644 --- a/arch/x86/kernel/cpu/mtrr/mtrr.c +++ b/arch/x86/kernel/cpu/mtrr/mtrr.c @@ -625,7 +625,7 @@ void mtrr_save_state(void) static int __init mtrr_init_finalize(void) { /* - * Map might exist if mtrr_overwrite_state() has been called or if + * Map might exist if guest_force_mtrr_state() has been called or if * mtrr_enabled() returns true. */ mtrr_copy_map(); diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 21e9e4845354..7a422a6c5983 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -983,7 +983,7 @@ static void __init kvm_init_platform(void) x86_platform.apic_post_init = kvm_apic_init; /* Set WB as the default cache mode for SEV-SNP and TDX */ - mtrr_overwrite_state(NULL, 0, MTRR_TYPE_WRBACK); + guest_force_mtrr_state(NULL, 0, MTRR_TYPE_WRBACK); } #if defined(CONFIG_AMD_MEM_ENCRYPT) diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index d6818c6cafda..633469fab536 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -171,7 +171,7 @@ static void __init xen_set_mtrr_data(void) /* Only overwrite MTRR state if any MTRR could be got from Xen. */ if (reg) - mtrr_overwrite_state(var, reg, MTRR_TYPE_UNCACHABLE); + guest_force_mtrr_state(var, reg, MTRR_TYPE_UNCACHABLE); #endif } @@ -195,7 +195,7 @@ static void __init xen_pv_init_platform(void) if (xen_initial_domain()) xen_set_mtrr_data(); else - mtrr_overwrite_state(NULL, 0, MTRR_TYPE_WRBACK); + guest_force_mtrr_state(NULL, 0, MTRR_TYPE_WRBACK); /* Adjust nr_cpu_ids before "enumeration" happens */ xen_smp_count_cpus();