From 4dd322bc3b25be40dfa91e8ac483b846f3e8dffc Mon Sep 17 00:00:00 2001 From: Mukesh Rathor Date: Tue, 31 Dec 2013 14:02:44 -0500 Subject: [PATCH] xen/pvh: Setup up shared_info. For PVHVM the shared_info structure is provided via the same way as for normal PV guests (see include/xen/interface/xen.h). That is during bootup we get 'xen_start_info' via the %esi register in startup_xen. Then later we extract the 'shared_info' from said structure (in xen_setup_shared_info) and start using it. The 'xen_setup_shared_info' is all setup to work with auto-xlat guests, but there are two functions which it calls that are not: xen_setup_mfn_list_list and xen_setup_vcpu_info_placement. This patch modifies the P2M code (xen_setup_mfn_list_list) while the "Piggyback on PVHVM for event channels" modifies the xen_setup_vcpu_info_placement. Signed-off-by: Mukesh Rathor Signed-off-by: Konrad Rzeszutek Wilk --- arch/x86/xen/p2m.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index fb7ee0a4f9d0..696c694986d0 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -339,6 +339,9 @@ void __ref xen_build_mfn_list_list(void) void xen_setup_mfn_list_list(void) { + if (xen_feature(XENFEAT_auto_translated_physmap)) + return; + BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info); HYPERVISOR_shared_info->arch.pfn_to_mfn_frame_list_list = -- 2.20.1