[Xen-changelog] [qemu-upstream-unstable] xen: do not allocate RAM during INMIGRATE runstate

[patchbot@xxxxxxx]

commit e1615984e765751b430f86be679c0b74b5d5cd15
Author: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Date:   Wed Jan 25 12:36:06 2012 +0000

    xen: do not allocate RAM during INMIGRATE runstate
    
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
 xen-all.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/xen-all.c b/xen-all.c
index 6293fbb..8d12915 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -188,6 +188,14 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size)
     xen_pfn_t *pfn_list;
     int i;
 
+    if (runstate_check(RUN_STATE_INMIGRATE)) {
+        /* RAM already populated in Xen */
+        fprintf(stderr, "%s: do not alloc "RAM_ADDR_FMT
+                " bytes of ram at "RAM_ADDR_FMT" when runstate is INMIGRATE\n",
+                __func__, size, ram_addr); 
+        return;
+    }
+
     trace_xen_ram_alloc(ram_addr, size);
 
     nr_pfn = size >> TARGET_PAGE_BITS;
--
generated by git-patchbot for /home/xen/git/qemu-upstream-unstable.git

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