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uftrace: riscv privilege level

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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>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
Link: https://lore.kernel.org/qemu-devel/tencent_E17E8F6494EE130F71527C6BCE481AF33E08@qq.com
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
This commit is contained in:
Yanfeng Liu
2026-07-12 16:45:53 +08:00
committed by Pierrick Bouvier
parent 499039798c
commit 9550219649
1 changed files with 10 additions and 3 deletions
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13
contrib/plugins/uftrace.c
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@@ -109,6 +109,8 @@ typedef enum {
RISCV64_SUPERVISOR,
RISCV64_RESERVED,
RISCV64_MACHINE,
RISCV64_VUSER,
RISCV64_VSUPERVISOR,
RISCV64_PRIVILEGE_LEVEL_MAX,
} Riscv64PrivilegeLevel;
@@ -153,8 +155,10 @@ static void uftrace_write_map(bool system_emulation)
const char *path = "./uftrace.data/sid-0.map";
if (system_emulation && access(path, F_OK) == 0) {
/* do not erase existing map in system emulation, as a custom one might
* already have been generated by uftrace_symbols.py */
/*
* do not erase existing map in system emulation, as a custom one might
* already have been generated by uftrace_symbols.py
*/
return;
}
@@ -706,6 +710,8 @@ static const char *riscv64_get_privilege_level_name(uint8_t pl)
case RISCV64_SUPERVISOR: return "Supervisor";
case RISCV64_RESERVED: return "Unknown";
case RISCV64_MACHINE: return "Machine";
case RISCV64_VUSER: return "VUser";
case RISCV64_VSUPERVISOR: return "VSupervisor";
default:
g_assert_not_reached();
}
@@ -986,7 +992,8 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
score = qemu_plugin_scoreboard_new(sizeof(Cpu));
qemu_plugin_register_vcpu_init_cb(id, vcpu_init, NULL);
qemu_plugin_register_atexit_cb(id, at_exit, (void *) info->system_emulation);
qemu_plugin_register_atexit_cb(id, at_exit,
(void *) info->system_emulation);
qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans, NULL);
return 0;