On restore, we need to create a new event channel and update the shared
page information for the store, AFAICT.
I'm not quite sure how this *should* be done. Thoughts welcome, patch
below.
Rusty.
diff -r 71883f17a80f tools/libxc/xc.h
--- a/tools/libxc/xc.h Fri Jul 15 20:31:09 2005
+++ b/tools/libxc/xc.h Sun Jul 17 07:54:28 2005
@@ -250,7 +250,8 @@
* @parm nr_pfns the number of pages
* @return 0 on success, -1 on failure
*/
-int xc_linux_restore(int xc_handle, int io_fd, u32 dom, unsigned long nr_pfns);
+int xc_linux_restore(int xc_handle, int io_fd, u32 dom, unsigned long nr_pfns,
+ unsigned int store_evtchn, unsigned long *store_mfn);
int xc_linux_build(int xc_handle,
u32 domid,
diff -r 71883f17a80f tools/libxc/xc_linux_restore.c
--- a/tools/libxc/xc_linux_restore.c Fri Jul 15 20:31:09 2005
+++ b/tools/libxc/xc_linux_restore.c Sun Jul 17 07:54:28 2005
@@ -48,7 +48,8 @@
return r;
}
-int xc_linux_restore(int xc_handle, int io_fd, u32 dom, unsigned long nr_pfns)
+int xc_linux_restore(int xc_handle, int io_fd, u32 dom, unsigned long nr_pfns,
+ unsigned int store_evtchn, unsigned long *store_mfn)
{
dom0_op_t op;
int rc = 1, i, n, k;
@@ -468,6 +469,10 @@
p_srec->resume_info.nr_pages = nr_pfns;
p_srec->resume_info.shared_info = shared_info_frame << PAGE_SHIFT;
p_srec->resume_info.flags = 0;
+ p_srec->resume_info.store_evtchn = store_evtchn;
+ /* FIXME: How to calculate this properly? */
+ *store_mfn = pfn_to_mfn_table[(p_srec->resume_info.store_page-0xc0100000)
+ >> PAGE_SHIFT];
munmap(p_srec, PAGE_SIZE);
/* Uncanonicalise each GDT frame number. */
--
A bad analogy is like a leaky screwdriver -- Richard Braakman
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