x86/emul: Fix emulator test harness build following a backport of 7c508612

The x86 emulator doesn't need to employ any Spectre v2 mitigations.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>

diff --git a/tools/tests/x86_emulator/x86_emulate.c b/tools/tests/x86_emulator/x86_emulate.c
index 58cfd8ae7d291f75d358d37ce5f45da2c4059143..ed3280b9dca07a9a7eb85d1bd7048b04d2219e44 100644 (file)
--- a/tools/tests/x86_emulator/x86_emulate.c
+++ b/tools/tests/x86_emulator/x86_emulate.c
@@ -53,4 +53,9 @@ typedef bool bool_t;
 #define likely(x)     __builtin_expect(!!(x), true)
 #define unlikely(x)   __builtin_expect(!!(x), false)
 
+/* No Spectre mitigations needed for the test harness. */
+asm (".macro INDIRECT_CALL arg:req\n\t"
+     "call *\\arg\n\t"
+     ".endm");
+
 #include "x86_emulate/x86_emulate.c"