diff options
Diffstat (limited to 'arch/arm64/kvm/hyp/nvhe/psci-relay.c')
| -rw-r--r-- | arch/arm64/kvm/hyp/nvhe/psci-relay.c | 77 |
1 files changed, 19 insertions, 58 deletions
diff --git a/arch/arm64/kvm/hyp/nvhe/psci-relay.c b/arch/arm64/kvm/hyp/nvhe/psci-relay.c index 1f7237e45148..e3947846ffcb 100644 --- a/arch/arm64/kvm/hyp/nvhe/psci-relay.c +++ b/arch/arm64/kvm/hyp/nvhe/psci-relay.c @@ -43,48 +43,16 @@ struct psci_boot_args { static DEFINE_PER_CPU(struct psci_boot_args, cpu_on_args) = PSCI_BOOT_ARGS_INIT; static DEFINE_PER_CPU(struct psci_boot_args, suspend_args) = PSCI_BOOT_ARGS_INIT; -static u64 get_psci_func_id(struct kvm_cpu_context *host_ctxt) -{ - DECLARE_REG(u64, func_id, host_ctxt, 0); - - return func_id; -} - -static inline bool is_psci_0_1_function_enabled(unsigned int fn_bit) -{ - return kvm_host_psci_config.enabled_functions_0_1 & fn_bit; -} - -static inline bool is_psci_0_1_cpu_suspend(u64 func_id) -{ - return is_psci_0_1_function_enabled(KVM_HOST_PSCI_0_1_CPU_SUSPEND) && - (func_id == kvm_host_psci_config.function_ids_0_1.cpu_suspend); -} - -static inline bool is_psci_0_1_cpu_on(u64 func_id) -{ - return is_psci_0_1_function_enabled(KVM_HOST_PSCI_0_1_CPU_ON) && - (func_id == kvm_host_psci_config.function_ids_0_1.cpu_on); -} - -static inline bool is_psci_0_1_cpu_off(u64 func_id) -{ - return is_psci_0_1_function_enabled(KVM_HOST_PSCI_0_1_CPU_OFF) && - (func_id == kvm_host_psci_config.function_ids_0_1.cpu_off); -} - -static inline bool is_psci_0_1_migrate(u64 func_id) -{ - return is_psci_0_1_function_enabled(KVM_HOST_PSCI_0_1_MIGRATE) && - (func_id == kvm_host_psci_config.function_ids_0_1.migrate); -} +#define is_psci_0_1(what, func_id) \ + (kvm_host_psci_config.psci_0_1_ ## what ## _implemented && \ + (func_id) == kvm_host_psci_config.function_ids_0_1.what) static bool is_psci_0_1_call(u64 func_id) { - return is_psci_0_1_cpu_suspend(func_id) || - is_psci_0_1_cpu_on(func_id) || - is_psci_0_1_cpu_off(func_id) || - is_psci_0_1_migrate(func_id); + return (is_psci_0_1(cpu_suspend, func_id) || + is_psci_0_1(cpu_on, func_id) || + is_psci_0_1(cpu_off, func_id) || + is_psci_0_1(migrate, func_id)); } static bool is_psci_0_2_call(u64 func_id) @@ -94,16 +62,6 @@ static bool is_psci_0_2_call(u64 func_id) (PSCI_0_2_FN64(0) <= func_id && func_id <= PSCI_0_2_FN64(31)); } -static bool is_psci_call(u64 func_id) -{ - switch (kvm_host_psci_config.version) { - case PSCI_VERSION(0, 1): - return is_psci_0_1_call(func_id); - default: - return is_psci_0_2_call(func_id); - } -} - static unsigned long psci_call(unsigned long fn, unsigned long arg0, unsigned long arg1, unsigned long arg2) { @@ -273,14 +231,14 @@ asmlinkage void __noreturn kvm_host_psci_cpu_entry(bool is_cpu_on) static unsigned long psci_0_1_handler(u64 func_id, struct kvm_cpu_context *host_ctxt) { - if (is_psci_0_1_cpu_off(func_id) || is_psci_0_1_migrate(func_id)) + if (is_psci_0_1(cpu_off, func_id) || is_psci_0_1(migrate, func_id)) return psci_forward(host_ctxt); - else if (is_psci_0_1_cpu_on(func_id)) + if (is_psci_0_1(cpu_on, func_id)) return psci_cpu_on(func_id, host_ctxt); - else if (is_psci_0_1_cpu_suspend(func_id)) + if (is_psci_0_1(cpu_suspend, func_id)) return psci_cpu_suspend(func_id, host_ctxt); - else - return PSCI_RET_NOT_SUPPORTED; + + return PSCI_RET_NOT_SUPPORTED; } static unsigned long psci_0_2_handler(u64 func_id, struct kvm_cpu_context *host_ctxt) @@ -322,20 +280,23 @@ static unsigned long psci_1_0_handler(u64 func_id, struct kvm_cpu_context *host_ bool kvm_host_psci_handler(struct kvm_cpu_context *host_ctxt) { - u64 func_id = get_psci_func_id(host_ctxt); + DECLARE_REG(u64, func_id, host_ctxt, 0); unsigned long ret; - if (!is_psci_call(func_id)) - return false; - switch (kvm_host_psci_config.version) { case PSCI_VERSION(0, 1): + if (!is_psci_0_1_call(func_id)) + return false; ret = psci_0_1_handler(func_id, host_ctxt); break; case PSCI_VERSION(0, 2): + if (!is_psci_0_2_call(func_id)) + return false; ret = psci_0_2_handler(func_id, host_ctxt); break; default: + if (!is_psci_0_2_call(func_id)) + return false; ret = psci_1_0_handler(func_id, host_ctxt); break; } |