/****************************************************************************** * This function is invoked during warm boot. Invoke the PSCI library * warm boot entry point which takes care of Architectural and platform setup/ * restore. Copy the relevant cpu_context register values to smc context which * will get programmed during `smc_exit`. *****************************************************************************/ void sp_min_warm_boot(void) { smc_ctx_t *next_smc_ctx; cpu_context_t *ctx = cm_get_context(NON_SECURE); u_register_t ns_sctlr; psci_warmboot_entrypoint(); smc_set_next_ctx(NON_SECURE); next_smc_ctx = smc_get_next_ctx(); zeromem(next_smc_ctx, sizeof(smc_ctx_t)); copy_cpu_ctx_to_smc_stx(get_regs_ctx(cm_get_context(NON_SECURE)), next_smc_ctx); /* Temporarily set the NS bit to access NS SCTLR */ write_scr(read_scr() | SCR_NS_BIT); isb(); ns_sctlr = read_ctx_reg(get_regs_ctx(ctx), CTX_NS_SCTLR); write_sctlr(ns_sctlr); isb(); write_scr(read_scr() & ~SCR_NS_BIT); isb(); }
/****************************************************************************** * This function is invoked during warm boot. Invoke the PSCI library * warm boot entry point which takes care of Architectural and platform setup/ * restore. Copy the relevant cpu_context register values to smc context which * will get programmed during `smc_exit`. *****************************************************************************/ void sp_min_warm_boot(void) { smc_ctx_t *next_smc_ctx; psci_warmboot_entrypoint(); smc_set_next_ctx(NON_SECURE); next_smc_ctx = smc_get_next_ctx(); memset(next_smc_ctx, 0, sizeof(smc_ctx_t)); copy_cpu_ctx_to_smc_stx(get_regs_ctx(cm_get_context(NON_SECURE)), next_smc_ctx); }