From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-in24.apple.com (mail-out24.apple.com [17.171.2.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id CD4192095BB7D for ; Sat, 2 Sep 2017 14:32:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; d=apple.com; s=mailout2048s; c=relaxed/simple; q=dns/txt; i=@apple.com; t=1504388102; h=From:Sender:Reply-To:Subject:Date:Message-id:To:Cc:MIME-version:Content-type: Content-transfer-encoding:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-reply-to:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=DplVQ3ZGHDUy/rK3hEHna1+foKtvdp/Hr11rIFbg9zE=; b=ANof2KwBwHXnJKYHaGOxWh6zgOlb/IRCGkjekjfFRwl5sCLqUpSe2LJmlq+tkT0A UBjpgV3x+ZG0BdYouVeI95L8oIxTzZyU3q0SUkG0S/mgrAIJjg3U7UbtjXVsWbRC I77OlHX7LxzATuG2GIXKC504lcd6SATTNHZV7BTaY75bOM8LDsV4IJxTHrULvvEi ByDI/JyCVsSTJVrwekKEimq1A4+iTHnaB12fBwMQk1CfFwdkP3D+9I9M6VAPOAKR WnX5+apn5JbN8kYDpC/kbEUWlIfpl+MT1ZXfDNlNyX5FQhjfwbxBK04yNHTRmk6N qZAAbukC2mb2XiaT6NZsMA==; Received: from relay22.apple.com (relay22.apple.com [17.171.128.103]) (using TLS with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mail-in24.apple.com (Apple Secure Mail Relay) with SMTP id E4.BC.25405.6042BA95; Sat, 2 Sep 2017 14:35:02 -0700 (PDT) X-AuditID: 11ab0218-27bff7000000633d-58-59ab24060199 Received: from ma1-mmpp-sz10.apple.com (ma1-mmpp-sz10.apple.com [17.171.128.150]) by relay22.apple.com (Apple SCV relay) with SMTP id 3F.55.07334.6042BA95; Sat, 2 Sep 2017 14:35:02 -0700 (PDT) MIME-version: 1.0 Received: from [17.234.200.202] by ma1-mmpp-sz10.apple.com (Oracle Communications Messaging Server 8.0.1.3.20170825 64bit (built Aug 25 2017)) with ESMTPSA id <0OVO00A0Y9AC1150@ma1-mmpp-sz10.apple.com>; Sat, 02 Sep 2017 14:35:02 -0700 (PDT) Sender: afish@apple.com From: Andrew Fish In-reply-to: <1E4DA6F54C53C24B98E8E8D172B945AF02B591DB@ZXBJMBX01.zhaoxin.com> Date: Sat, 02 Sep 2017 14:34:59 -0700 Cc: "edk2-devel@lists.01.org" Message-id: References: <1E4DA6F54C53C24B98E8E8D172B945AF02B591DB@ZXBJMBX01.zhaoxin.com> To: Tiger Liu X-Mailer: Apple Mail (2.3273) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrBLMWRmVeSWpSXmKPExsUiuLohXZdNZXWkQdsvK4s9h44yW9yYtZbJ gcmje/Y/Fo9ft26xBDBFcdmkpOZklqUW6dslcGVsOp5bMJuvYtYD2wbGbp4uRk4OCQETiQnX 9rN3MXJxCAmsZ5KY37iOtYuRAyxxaxYjRPwwo8TSpqtMIA28AoISPybfYwGpYRZQl5gyJRei 5hujxKwNHYwgNcIC4hLvzmxihrBtJP69ecMCYrMJKEusmP+BHcTmFPCV+Nu+lRFkDouAqsTz Vm+QMLOAucSMC1+YIGxtiSfvLrBCrLWR+HpuD9h4IQEfiRuTt4GNFxFQkVixZhcrxC+yErdm X2IGuUdCoJFN4vHFH0wTGIVnITl7FsLZs5CsWMDIvIpRODcxM0c3M8/IRC+xoCAnVS85P3cT IziomSR2MH55bXiIUYCDUYmHd8P/VZFCrIllxZW5hxilOViUxHk9WIBCAumJJanZqakFqUXx RaU5qcWHGJk4OKUaGJ3nH94SvFvsc1Jw1+ajHzfwd9kp5l0+plh9fs+biL8P02SDBEK5Wp0W qy5jPb/RnevbN+8fTvEP/3pPYHy/qub/3plRF6yPrv2TfuvjF/VrDLozTVaZ+N8sXHIhvPLP /EDFkKTCc0YlAcWLEz/de64QfOpO6zzHY61fQgverq18ekFpZs+l7OtKLMUZiYZazEXFiQDH 6ToASwIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNLMWRmVeSWpSXmKPExsUiuLphmi6byupIg/sTzC32HDrKbHFj1lom ByaP7tn/WDx+3brFEsAUxWWTkpqTWZZapG+XwJWx6XhuwWy+ilkPbBsYu3m6GDk4JARMJG7N Yuxi5OIQEjjMKLG06SpTFyMnB6+AoMSPyfdYQGqYBdQlpkzJhaj5xigxa0MHI0iNsIC4xLsz m5ghbBuJf2/esIDYbALKEivmf2AHsTkFfCX+tm9lBJnDIqAq8bzVGyTMLGAuMePCFyYIW1vi ybsLrBBrbSS+ntsDNl5IwEfixuRtYONFBFQkVqzZBVYjISArcWv2JeYJjAKzkFw6C+HSWUim LmBkXsUoWJSak1hpZKSXWFCQk6qXnJ+7iREShOk7GI/cNDvEKMDBqMTDu+H/qkgh1sSy4src Q4wSHMxKIrx88qsjhXhTEiurUovy44tKc1KLDzFKc7AoifM6pSyJFBJITyxJzU5NLUgtgsky cXBKNTC66ZxxdhPPKVBvfmdWYdodcn7Jm8ZzG/7/ZN0adTguet+vvfYuX/7O6S55lrDXe6fp 7GcTMxN3rvpw7IHtBu0ZgjnbtPZ91J3IGr1oXfeHcKkZGrnJc3SjtGXqp9m0tNcG+etkMPlX dDyJ+pEYyJl6K8f0rH/CXFHPqr/rLfJtrs4q2jPrWLkSS3FGoqEWc1FxIgCuD9BKPgIAAA== Subject: Re: Question about Simple Text Out Protocol X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Sep 2017 21:32:20 -0000 Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable > On Sep 1, 2017, at 2:07 AM, Tiger Liu wrote: >=20 > Hi, experts: > I am debugging vga class driver/mini port protocol. >=20 > I found: >=20 > 1. vgaclass driver will install Simple txt out protocol >=20 > 2. ConSplitter driver will also install simple txt out protocol >=20 > and ConSplitter driver=E2=80=99s simple txt out protocol = implementation will override vga class driver? >=20 The ConSplittler is the primary EFI console device and it is the console = referenced in the EFI System Table. The Conpliter is the main EFI = Console and it follows the policy of the EFI NVRAM variables. You may = need to make sure the BDS adds the device path for the VGA SimpleTextOut = to the ConOut EFI Variable.=20 Thanks, Andrew Fish > Thanks >=20 > best wishes, >=20 >=20 > =E4=BF=9D=E5=AF=86=E5=A3=B0=E6=98=8E=EF=BC=9A > = =E6=9C=AC=E9=82=AE=E4=BB=B6=E5=90=AB=E6=9C=89=E4=BF=9D=E5=AF=86=E6=88=96=E4= =B8=93=E6=9C=89=E4=BF=A1=E6=81=AF=EF=BC=8C=E4=BB=85=E4=BE=9B=E6=8C=87=E5=AE= =9A=E6=94=B6=E4=BB=B6=E4=BA=BA=E4=BD=BF=E7=94=A8=E3=80=82=E4=B8=A5=E7=A6=81= =E5=AF=B9=E6=9C=AC=E9=82=AE=E4=BB=B6=E6=88=96=E5=85=B6=E5=86=85=E5=AE=B9=E5= =81=9A=E4=BB=BB=E4=BD=95=E6=9C=AA=E7=BB=8F=E6=8E=88=E6=9D=83=E7=9A=84=E6=9F= =A5=E9=98=85=E3=80=81=E4=BD=BF=E7=94=A8=E3=80=81=E5=A4=8D=E5=88=B6=E6=88=96= =E8=BD=AC=E5=8F=91=E3=80=82 > CONFIDENTIAL NOTE: > This email contains confidential or legally privileged information and = is for the sole use of its intended recipient. Any unauthorized review, = use, copying or forwarding of this email or the content of this email is = strictly prohibited. > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.01.org > https://lists.01.org/mailman/listinfo/edk2-devel