This should be true of all loongarch64 running Linux.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index e651ec5c71..33d8e67513 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -30,6 +30,7 @@
*/
#include "../tcg-ldst.c.inc"
+#include <asm/hwcap.h>
#ifdef CONFIG_DEBUG_TCG
static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
@@ -1674,6 +1675,14 @@ static void tcg_target_qemu_prologue(TCGContext *s)
static void tcg_target_init(TCGContext *s)
{
+ unsigned long hwcap = qemu_getauxval(AT_HWCAP);
+
+ /* Server and desktop class cpus have UAL; embedded cpus do not. */
+ if (!(hwcap & HWCAP_LOONGARCH_UAL)) {
+ error_report("TCG: unaligned access support required; exiting");
+ exit(EXIT_FAILURE);
+ }
+
tcg_target_available_regs[TCG_TYPE_I32] = ALL_GENERAL_REGS;
tcg_target_available_regs[TCG_TYPE_I64] = ALL_GENERAL_REGS;
--
2.34.1
