[XEN] Add 'insn_fetch' memory operation to the x86_emulator.

This can be used to perform correct access checks, provide appropriate
error codes when injecting faults, and to implement an
instruction-stream prefetch cache (which is included here for HVM PTE
update emulations).

Signed-off-by: Keir Fraser <keir@xensource.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/tools/tests/test_x86_emulator.c b/tools/tests/test_x86_emulator.c
index e22e342ce2..64797d3f81 100644
--- a/tools/tests/test_x86_emulator.c
+++ b/tools/tests/test_x86_emulator.c
@@ -88,7 +88,11 @@ static int cmpxchg8b(
 }
 
 static struct x86_emulate_ops emulops = {
-    read, write, cmpxchg, cmpxchg8b
+    .read       = read,
+    .insn_fetch = read,
+    .write      = write,
+    .cmpxchg    = cmpxchg,
+    .cmpxchg8b  = cmpxchg8b
 };
 
 int main(int argc, char **argv)