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| author |   Mukesh Rathor <mukesh.rathor@oracle.com> | 2013-12-31 14:02:44 -0500 |
|---|---|---|
| committer |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2014-01-06 10:44:09 -0500 |
| commit | 4dd322bc3b25be40dfa91e8ac483b846f3e8dffc (patch) | |
| tree | a2a43cced3f4eb0224ba534da70d9cf7b8e1423a /arch | |
| parent | xen/pvh/mmu: Use PV TLB instead of native. (diff) | |
| download | linux-dev-4dd322bc3b25be40dfa91e8ac483b846f3e8dffc.tar.xz linux-dev-4dd322bc3b25be40dfa91e8ac483b846f3e8dffc.zip | |
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 <mukesh.rathor@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/p2m.c | 3 |
1 files changed, 3 insertions, 0 deletions
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 = |