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xen/arm: vpsci: Removing dummy MIGRATE and MIGRATE_INFO_UP_CPU
The PSCI call MIGRATE and MIGRATE_INFO_UP_CPU are optional and implemented as just returning PSCI_NOT_SUPPORTED (aka UNKNOWN_FUNCTION for SMCCC). The new SMCCC framework is able to deal with unimplemented function and return the proper error code. So remove the implementations for both function. Signed-off-by: Julien Grall <julien.grall@linaro.org> Reviewed-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org>
This commit is contained in:
Julien Grall authored and Stefano Stabellini committed
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5eaa17357b
commit
8fd0eb2239
4 files changed
+1
-31
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@@ -172,21 +172,11 @@ int32_t do_psci_0_2_affinity_info(register_t target_affinity,
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return PSCI_0_2_AFFINITY_LEVEL_OFF;
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}
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int32_t do_psci_0_2_migrate(uint32_t target_cpu)
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{
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return PSCI_NOT_SUPPORTED;
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}
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uint32_t do_psci_0_2_migrate_info_type(void)
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{
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return PSCI_0_2_TOS_MP_OR_NOT_PRESENT;
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}
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register_t do_psci_0_2_migrate_info_up_cpu(void)
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{
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return PSCI_NOT_SUPPORTED;
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}
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void do_psci_0_2_system_off( void )
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{
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struct domain *d = current->domain;
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+1
-15
@@ -28,7 +28,7 @@
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#define XEN_SMCCC_FUNCTION_COUNT 3
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/* Number of functions currently supported by Standard Service Service Calls. */
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#define SSSC_SMCCC_FUNCTION_COUNT 13
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#define SSSC_SMCCC_FUNCTION_COUNT 11
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static bool fill_uid(struct cpu_user_regs *regs, xen_uuid_t uuid)
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{
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@@ -157,11 +157,6 @@ static bool handle_sssc(struct cpu_user_regs *regs)
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PSCI_SET_RESULT(regs, do_psci_0_2_migrate_info_type());
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return true;
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case PSCI_0_2_FN_MIGRATE_INFO_UP_CPU:
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perfc_incr(vpsci_migrate_info_up_cpu);
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PSCI_SET_RESULT(regs, do_psci_0_2_migrate_info_up_cpu());
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return true;
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case PSCI_0_2_FN_SYSTEM_OFF:
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perfc_incr(vpsci_system_off);
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do_psci_0_2_system_off();
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@@ -206,15 +201,6 @@ static bool handle_sssc(struct cpu_user_regs *regs)
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return true;
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}
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case PSCI_0_2_FN_MIGRATE:
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{
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uint32_t tcpu = PSCI_ARG32(regs, 1);
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perfc_incr(vpsci_cpu_migrate);
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PSCI_SET_RESULT(regs, do_psci_0_2_migrate(tcpu));
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return true;
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}
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case ARM_SMCCC_FUNC_CALL_COUNT:
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return fill_function_call_count(regs, SSSC_SMCCC_FUNCTION_COUNT);
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@@ -27,12 +27,10 @@ PERFCOUNTER(vpsci_cpu_on, "vpsci: cpu_on")
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PERFCOUNTER(vpsci_cpu_off, "vpsci: cpu_off")
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PERFCOUNTER(vpsci_version, "vpsci: version")
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PERFCOUNTER(vpsci_migrate_info_type, "vpsci: migrate_info_type")
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PERFCOUNTER(vpsci_migrate_info_up_cpu, "vpsci: migrate_info_up_cpu")
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PERFCOUNTER(vpsci_system_off, "vpsci: system_off")
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PERFCOUNTER(vpsci_system_reset, "vpsci: system_reset")
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PERFCOUNTER(vpsci_cpu_suspend, "vpsci: cpu_suspend")
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PERFCOUNTER(vpsci_cpu_affinity_info, "vpsci: cpu_affinity_info")
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PERFCOUNTER(vpsci_cpu_migrate, "vpsci: cpu_migrate")
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PERFCOUNTER(vgicd_reads, "vgicd: read")
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PERFCOUNTER(vgicd_writes, "vgicd: write")
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@@ -37,9 +37,7 @@ int32_t do_psci_0_2_cpu_on(register_t target_cpu, register_t entry_point,
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register_t context_id);
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int32_t do_psci_0_2_affinity_info(register_t target_affinity,
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uint32_t lowest_affinity_level);
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int32_t do_psci_0_2_migrate(uint32_t target_cpu);
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uint32_t do_psci_0_2_migrate_info_type(void);
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register_t do_psci_0_2_migrate_info_up_cpu(void);
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void do_psci_0_2_system_off(void);
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void do_psci_0_2_system_reset(void);
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@@ -57,9 +55,7 @@ void do_psci_0_2_system_reset(void);
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#define PSCI_0_2_FN_CPU_OFF 2
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#define PSCI_0_2_FN_CPU_ON 3
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#define PSCI_0_2_FN_AFFINITY_INFO 4
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#define PSCI_0_2_FN_MIGRATE 5
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#define PSCI_0_2_FN_MIGRATE_INFO_TYPE 6
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#define PSCI_0_2_FN_MIGRATE_INFO_UP_CPU 7
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#define PSCI_0_2_FN_SYSTEM_OFF 8
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#define PSCI_0_2_FN_SYSTEM_RESET 9
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