From mboxrd@z Thu Jan 1 00:00:00 1970 From: 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> References: <20171128094400.25955-1-jgross@suse.com> Return-path: In-Reply-To: <20171128094400.25955-1-jgross@suse.com> Sender: linux-kernel-owner@vger.kernel.org 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 List-Id: linux-acpi@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