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authorJuergen Gross <jgross@suse.com>2017-07-28 12:23:12 +0200
committerJuergen Gross <jgross@suse.com>2017-08-11 15:50:21 +0200
commitc138d81163d82db044dcaf1141395713f03bf0bf (patch)
tree281e040d7a5356799293187c930ec14ac12fc418 /arch/x86/mm
parente91b2b1194335ca83d8a40fa4e0efd480bf2babe (diff)
x86: provide an init_mem_mapping hypervisor hook
Provide a hook in hypervisor_x86 called after setting up initial memory mapping. This is needed e.g. by Xen HVM guests to map the hypervisor shared info page. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/init.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 673541eb3b3f..bf3f1065d6ad 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -18,6 +18,7 @@
#include <asm/dma.h> /* for MAX_DMA_PFN */
#include <asm/microcode.h>
#include <asm/kaslr.h>
+#include <asm/hypervisor.h>
/*
* We need to define the tracepoints somewhere, and tlb.c
@@ -636,6 +637,8 @@ void __init init_mem_mapping(void)
load_cr3(swapper_pg_dir);
__flush_tlb_all();
+ hypervisor_init_mem_mapping();
+
early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
}