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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.180.131; envelope-from=brian.cain@oss.qualcomm.com; helo=mx0b-0031df01.pphosted.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.819, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.903, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @qualcomm.com) X-ZM-MESSAGEID: 1773202438288158500 From: Brian Cain Reviewed-by: Taylor Simpson Signed-off-by: Brian Cain --- target/hexagon/cpu_helper.h | 1 + target/hexagon/cpu.c | 22 +++++++++++++++++++ target/hexagon/cpu_helper.c | 44 +++++++++++++++++++++++++++++++++++++ 3 files changed, 67 insertions(+) diff --git a/target/hexagon/cpu_helper.h b/target/hexagon/cpu_helper.h index dc99b4c294b..7d7cf58acc8 100644 --- a/target/hexagon/cpu_helper.h +++ b/target/hexagon/cpu_helper.h @@ -15,6 +15,7 @@ void hexagon_set_sys_pcycle_count(CPUHexagonState *env, u= int64_t); void hexagon_set_sys_pcycle_count_low(CPUHexagonState *env, uint32_t); void hexagon_set_sys_pcycle_count_high(CPUHexagonState *env, uint32_t); void hexagon_modify_ssr(CPUHexagonState *env, uint32_t new, uint32_t old); +int get_cpu_mode(CPUHexagonState *env); int get_exe_mode(CPUHexagonState *env); void clear_wait_mode(CPUHexagonState *env); void hexagon_ssr_set_cause(CPUHexagonState *env, uint32_t cause); diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index 6849dc7966b..cec06daed73 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -449,6 +449,28 @@ static void hexagon_cpu_realize(DeviceState *dev, Erro= r **errp) =20 static int hexagon_cpu_mmu_index(CPUState *cs, bool ifetch) { +#ifndef CONFIG_USER_ONLY + BQL_LOCK_GUARD(); + CPUHexagonState *env =3D cpu_env(cs); + HexagonCPU *cpu =3D HEXAGON_CPU(cs); + if (cpu->globalregs) { + uint32_t syscfg =3D + hexagon_globalreg_read(cpu->globalregs, HEX_SREG_SYSCFG, + env->threadId); + uint8_t mmuen =3D GET_SYSCFG_FIELD(SYSCFG_MMUEN, syscfg); + if (!mmuen) { + return MMU_KERNEL_IDX; + } + } + + int cpu_mode =3D get_cpu_mode(env); + if (cpu_mode =3D=3D HEX_CPU_MODE_MONITOR) { + return MMU_KERNEL_IDX; + } else if (cpu_mode =3D=3D HEX_CPU_MODE_GUEST) { + return MMU_GUEST_IDX; + } +#endif + return MMU_USER_IDX; } =20 diff --git a/target/hexagon/cpu_helper.c b/target/hexagon/cpu_helper.c index dcb07283494..0521c01c84c 100644 --- a/target/hexagon/cpu_helper.c +++ b/target/hexagon/cpu_helper.c @@ -302,3 +302,47 @@ void hexagon_stop_thread(CPUHexagonState *env) SHUTDOWN_CAUSE_GUEST_SHUTDOWN, get_thread0_r2()); } } + +static int sys_in_monitor_mode_ssr(uint32_t ssr) +{ + if ((GET_SSR_FIELD(SSR_EX, ssr) !=3D 0) || + ((GET_SSR_FIELD(SSR_EX, ssr) =3D=3D 0) && + (GET_SSR_FIELD(SSR_UM, ssr) =3D=3D 0))) { + return 1; + } + return 0; +} + +static int sys_in_guest_mode_ssr(uint32_t ssr) +{ + if ((GET_SSR_FIELD(SSR_EX, ssr) =3D=3D 0) && + (GET_SSR_FIELD(SSR_UM, ssr) !=3D 0) && + (GET_SSR_FIELD(SSR_GM, ssr) !=3D 0)) { + return 1; + } + return 0; +} + +static int sys_in_user_mode_ssr(uint32_t ssr) +{ + if ((GET_SSR_FIELD(SSR_EX, ssr) =3D=3D 0) && + (GET_SSR_FIELD(SSR_UM, ssr) !=3D 0) && + (GET_SSR_FIELD(SSR_GM, ssr) =3D=3D 0)) { + return 1; + } + return 0; +} + +int get_cpu_mode(CPUHexagonState *env) +{ + uint32_t ssr =3D env->t_sreg[HEX_SREG_SSR]; + + if (sys_in_monitor_mode_ssr(ssr)) { + return HEX_CPU_MODE_MONITOR; + } else if (sys_in_guest_mode_ssr(ssr)) { + return HEX_CPU_MODE_GUEST; + } else if (sys_in_user_mode_ssr(ssr)) { + return HEX_CPU_MODE_USER; + } + return HEX_CPU_MODE_MONITOR; +} --=20 2.34.1