Messages in this thread Patch in this message | | | From | Konrad Rzeszutek Wilk <> | Subject | [PATCH v13 09/19] xen/pvh: Setup up shared_info. | Date | Fri, 3 Jan 2014 14:38:26 -0500 |
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From: Mukesh Rathor <mukesh.rathor@oracle.com>
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 <mukesh.rathor@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> --- 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 fb7ee0a..696c694 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 = -- 1.8.3.1
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