From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752241AbdK1Jo1 (ORCPT ); Tue, 28 Nov 2017 04:44:27 -0500 Received: from mx2.suse.de ([195.135.220.15]:41467 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751686AbdK1JoH (ORCPT ); Tue, 28 Nov 2017 04:44:07 -0500 From: Juergen Gross To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org Cc: boris.ostrovsky@oracle.com, hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com, corbet@lwn.net, rjw@rjwysocki.net, lenb@kernel.org, linux-acpi@vger.kernel.org, Juergen Gross Subject: [PATCH 3/3] x86/xen: supply rsdp address in boot params for pvh guests Date: Tue, 28 Nov 2017 10:44:00 +0100 Message-Id: <20171128094400.25955-4-jgross@suse.com> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20171128094400.25955-1-jgross@suse.com> References: <20171128094400.25955-1-jgross@suse.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When booted via the special PVH entry save the RSDP address set in the boot information block in struct boot_params. This will enable Xen to locate the RSDP at an arbitrary address. Signed-off-by: Juergen Gross --- arch/x86/xen/enlighten_pvh.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c index 436c4f003e17..0175194f4236 100644 --- a/arch/x86/xen/enlighten_pvh.c +++ b/arch/x86/xen/enlighten_pvh.c @@ -71,6 +71,8 @@ static void __init init_pvh_bootparams(void) */ pvh_bootparams.hdr.version = 0x212; pvh_bootparams.hdr.type_of_loader = (9 << 4) | 0; /* Xen loader */ + + pvh_bootparams.hdr.acpi_rsdp_addr = pvh_start_info.rsdp_paddr; } /* -- 2.12.3