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Subject[PATCH 3/3] x86/xen: supply rsdp address in boot params for pvh guests
Date
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 <jgross@suse.com>
---
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
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