From nobody Mon Feb 9 12:42:47 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (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 6A068255E37; Fri, 2 May 2025 13:08:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746191333; cv=none; b=Nq5/g5aAC6tlCyy84TmS6Ct/v3n7sDw0CTz/2py3T7R6bb/2zYVgPCxcKy28YxKY1ExnNX3g1pMtRC8638G8qopjqxWm35ivhjG8dF3oWLQcGQjuHRNIXmk0xmaVZ6yfBKunKEHmhWP07YlziaFJO9C+v5CVDvBxlN395NkOy+k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746191333; c=relaxed/simple; bh=j5Y6GYyeSlhNDi2dLeXJ+8OeWOwUzdTAtd6KqruAJps=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Zlh89EZ0Y03cShev8aVoKVt6XFrC7YU3fE6NCkVb/lwm2F9rg5dY3EXcD/kL2hsK70mDIp9tatRO22TrRjk5Av4+EUzpkel3gWYyDtbyHX32Y/nhH6zLxz6ha5a6zTI5D25sYJ1OpCG2wSCFMNIDMMIYC7IwCF7rMympgbl4mxo= 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=lmUQ5Ows; arc=none smtp.client-ip=192.198.163.11 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="lmUQ5Ows" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1746191332; x=1777727332; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=j5Y6GYyeSlhNDi2dLeXJ+8OeWOwUzdTAtd6KqruAJps=; b=lmUQ5OwslejGX+aJN4uHYO25g77foDFUdO6aZyvHZEzeLpgQpEL1rDTl G7LDea95EDJrqKINHa7164wbahifp2yKX1HE+kgnZU+7xqFIbBAkYKUE4 eKzxG7SGqO0gPl9GvJ9bftELW3OOQ3NImVTGgDAXCpUMMQiLaTkOHpJDK Fd5vxyazLcJEXGpNCihTbyOlMKsHYWkW+9H9YD7QX7xm1MEHmXTOCJl6f A3e6ApGw0sTn0wrGNkI5mi+qqzaicCZG2jX3n10Yd3mS9q9+nSCYRm+F3 Dz91rOhecfCkDu0MtfrwhfHNtUeyv3f58UNxurFSXFTOSoYwmP5lb6MR6 A==; X-CSE-ConnectionGUID: 6SHVNk1kQo+n0HfVBjBgHA== X-CSE-MsgGUID: erRWX5CHTN2/zhKQeg10pw== X-IronPort-AV: E=McAfee;i="6700,10204,11421"; a="58495273" X-IronPort-AV: E=Sophos;i="6.15,256,1739865600"; d="scan'208";a="58495273" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 May 2025 06:08:51 -0700 X-CSE-ConnectionGUID: 0Z/06JEGRTaayqBgyOFGwg== X-CSE-MsgGUID: 695OBPPCQACgw1ezPztR6w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,256,1739865600"; d="scan'208";a="138657788" Received: from black.fi.intel.com ([10.237.72.28]) by fmviesa003.fm.intel.com with ESMTP; 02 May 2025 06:08:41 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id 656B2325; Fri, 02 May 2025 16:08:36 +0300 (EEST) From: "Kirill A. Shutemov" To: pbonzini@redhat.com, seanjc@google.com Cc: rick.p.edgecombe@intel.com, isaku.yamahata@intel.com, kai.huang@intel.com, yan.y.zhao@intel.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, kvm@vger.kernel.org, x86@kernel.org, linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [RFC, PATCH 07/12] KVM: TDX: Allocate PAMT memory in tdx_td_vcpu_init() Date: Fri, 2 May 2025 16:08:23 +0300 Message-ID: <20250502130828.4071412-8-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250502130828.4071412-1-kirill.shutemov@linux.intel.com> References: <20250502130828.4071412-1-kirill.shutemov@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Allocate PAMT memory for TDH.VP.CREATE and TDH.VP.ADDCX. PAMT memory that is associated with pages successfully added to the TD with TDH.VP.ADDCX will be removed in tdx_reclaim_page() on tdx_reclaim_control_page(). Signed-off-by: Kirill A. Shutemov --- arch/x86/kvm/vmx/tdx.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c index 59bbae2df485..18c4ae00cd8d 100644 --- a/arch/x86/kvm/vmx/tdx.c +++ b/arch/x86/kvm/vmx/tdx.c @@ -2983,7 +2983,7 @@ static int tdx_td_vcpu_init(struct kvm_vcpu *vcpu, u6= 4 vcpu_rcx) int ret, i; u64 err; =20 - page =3D alloc_page(GFP_KERNEL); + page =3D tdx_alloc_page(); if (!page) return -ENOMEM; tdx->vp.tdvpr_page =3D page; @@ -2996,7 +2996,7 @@ static int tdx_td_vcpu_init(struct kvm_vcpu *vcpu, u6= 4 vcpu_rcx) } =20 for (i =3D 0; i < kvm_tdx->td.tdcx_nr_pages; i++) { - page =3D alloc_page(GFP_KERNEL); + page =3D tdx_alloc_page(); if (!page) { ret =3D -ENOMEM; goto free_tdcx; @@ -3020,7 +3020,7 @@ static int tdx_td_vcpu_init(struct kvm_vcpu *vcpu, u6= 4 vcpu_rcx) * method, but the rest are freed here. */ for (; i < kvm_tdx->td.tdcx_nr_pages; i++) { - __free_page(tdx->vp.tdcx_pages[i]); + tdx_free_page(tdx->vp.tdcx_pages[i]); tdx->vp.tdcx_pages[i] =3D NULL; } return -EIO; @@ -3039,16 +3039,15 @@ static int tdx_td_vcpu_init(struct kvm_vcpu *vcpu, = u64 vcpu_rcx) =20 free_tdcx: for (i =3D 0; i < kvm_tdx->td.tdcx_nr_pages; i++) { - if (tdx->vp.tdcx_pages[i]) - __free_page(tdx->vp.tdcx_pages[i]); + tdx_free_page(tdx->vp.tdcx_pages[i]); tdx->vp.tdcx_pages[i] =3D NULL; } kfree(tdx->vp.tdcx_pages); tdx->vp.tdcx_pages =3D NULL; =20 free_tdvpr: - if (tdx->vp.tdvpr_page) - __free_page(tdx->vp.tdvpr_page); + tdx_free_page(tdx->vp.tdvpr_page); + tdx->vp.tdvpr_page =3D 0; =20 return ret; --=20 2.47.2