uftrace: riscv privilege level
This adds RiscV virtual user and supervisor privilege levels to uftrace plugin to avoid crashing with H extension guests. Signed-off-by: Yanfeng Liu <yfliu2008@qq.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <tencent_E17E8F6494EE130F71527C6BCE481AF33E08@qq.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Yanfeng Liu committed
Jul 12, 2026 at 16:45 UTC
ae06586a025afe1929dce5e7c92fe278811c515d
1 file changed
+10
-3
contrib/plugins/uftrace.c
+10
-3
@@ -109,6 +109,8 @@ typedef enum {
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RISCV64_SUPERVISOR,
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RISCV64_RESERVED,
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RISCV64_MACHINE,
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+ RISCV64_VUSER,
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+ RISCV64_VSUPERVISOR,
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RISCV64_PRIVILEGE_LEVEL_MAX,
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} Riscv64PrivilegeLevel;
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@@ -153,8 +155,10 @@ static void uftrace_write_map(bool system_emulation)
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const char *path = "./uftrace.data/sid-0.map";
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if (system_emulation && access(path, F_OK) == 0) {
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- /* do not erase existing map in system emulation, as a custom one might
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- * already have been generated by uftrace_symbols.py */
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+ /*
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+ * do not erase existing map in system emulation, as a custom one might
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+ * already have been generated by uftrace_symbols.py
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+ */
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return;
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}
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@@ -706,6 +710,8 @@ static const char *riscv64_get_privilege_level_name(uint8_t pl)
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case RISCV64_SUPERVISOR: return "Supervisor";
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case RISCV64_RESERVED: return "Unknown";
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case RISCV64_MACHINE: return "Machine";
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+ case RISCV64_VUSER: return "VUser";
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+ case RISCV64_VSUPERVISOR: return "VSupervisor";
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default:
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g_assert_not_reached();
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}
@@ -986,7 +992,8 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
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score = qemu_plugin_scoreboard_new(sizeof(Cpu));
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qemu_plugin_register_vcpu_init_cb(id, vcpu_init, NULL);
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- qemu_plugin_register_atexit_cb(id, at_exit, (void *) info->system_emulation);
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+ qemu_plugin_register_atexit_cb(id, at_exit,
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+ (void *) info->system_emulation);
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qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans, NULL);
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return 0;