diff mbox series

[v2,03/24] accel/tcg: add raise_excp and raise_excp_restore helpers

Message ID 20260928052051.251-4-luoyonggang@gmail.com
State New
Headers show
Series accel/tcg: share raise_excp across TCG targets | expand

Commit Message

Yonggang Luo Sept. 28, 2026, 5:20 a.m. UTC 
Add two TCG helpers next to cpu_loop_exit_excp. raise_excp exits
with host_pc 0. raise_excp_restore exits with GETPC(). Declare both
with DEF_HELPER in cpu-exec-common.h.

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
---
 accel/tcg/cpu-exec-common.c | 12 ++++++++++++
 accel/tcg/cpu-exec-common.h |  2 ++
 2 files changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/accel/tcg/cpu-exec-common.c b/accel/tcg/cpu-exec-common.c
index 31fed8e497f..d6277b7d917 100644
--- a/accel/tcg/cpu-exec-common.c
+++ b/accel/tcg/cpu-exec-common.c
@@ -124,6 +124,18 @@  void cpu_loop_exit_excp(CPUState *cpu, int exception_index, uintptr_t pc)
     cpu_loop_exit_restore(cpu, pc);
 }
 
+/* Raise exception and exit the TB without restoring guest state. */
+void HELPER(raise_excp)(CPUArchState *env, uint32_t exception)
+{
+    cpu_loop_exit_excp(env_cpu(env), exception, 0);
+}
+
+/* Raise exception and exit the TB, restoring state from GETPC(). */
+void HELPER(raise_excp_restore)(CPUArchState *env, uint32_t exception)
+{
+    cpu_loop_exit_excp(env_cpu(env), exception, GETPC());
+}
+
 void cpu_loop_exit_atomic(CPUState *cpu, uintptr_t pc)
 {
     /* Prevent looping if already executing in a serial context. */
diff --git a/accel/tcg/cpu-exec-common.h b/accel/tcg/cpu-exec-common.h
index 19359a97bae..1e82f3b14d3 100644
--- a/accel/tcg/cpu-exec-common.h
+++ b/accel/tcg/cpu-exec-common.h
@@ -1,2 +1,4 @@ 
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 DEF_HELPER_FLAGS_1(exit_atomic, TCG_CALL_NO_WG, noreturn, env)
+DEF_HELPER_FLAGS_2(raise_excp, TCG_CALL_NO_WG, noreturn, env, i32)
+DEF_HELPER_FLAGS_2(raise_excp_restore, TCG_CALL_NO_WG, noreturn, env, i32)