diff options
Diffstat (limited to 'src/arch/arm64/armv8')
| -rw-r--r-- | src/arch/arm64/armv8/secmon/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/arch/arm64/armv8/secmon/secmon_init.c | 45 | ||||
| -rw-r--r-- | src/arch/arm64/armv8/secmon_loader.c | 16 |
3 files changed, 43 insertions, 20 deletions
diff --git a/src/arch/arm64/armv8/secmon/Makefile.inc b/src/arch/arm64/armv8/secmon/Makefile.inc index b140941e8b..5dadfa9a63 100644 --- a/src/arch/arm64/armv8/secmon/Makefile.inc +++ b/src/arch/arm64/armv8/secmon/Makefile.inc @@ -32,6 +32,8 @@ secmon-c-ccopts += -I$(src)/arch/arm64/include/armv8/ -include $(src)/include/kc secmon-S-ccopts += -I$(src)/arch/arm64/include/armv8/ -include $(src)/include/kconfig.h -D__SECMON__ secmon-y += secmon_init.c +secmon-y += ../exception.c +secmon-y += ../../cpu.c secmon-y += ../../transition_asm.S ../../transition.c ramstage-srcs += $(SECMON_SRC) diff --git a/src/arch/arm64/armv8/secmon/secmon_init.c b/src/arch/arm64/armv8/secmon/secmon_init.c index e8bdd82d29..660d6d432b 100644 --- a/src/arch/arm64/armv8/secmon/secmon_init.c +++ b/src/arch/arm64/armv8/secmon/secmon_init.c @@ -21,6 +21,7 @@ #include <arch/barrier.h> #include <arch/io.h> +#include <arch/exception.h> #include <arch/lib_helpers.h> #include <arch/secmon.h> #include <arch/transition.h> @@ -28,14 +29,15 @@ #include <rmodule.h> #include <stddef.h> -static void secmon_wait(void) +static void cpu_init(int bsp) { - /* - * TODO(furquan): This should be a point of no-return. Once we have PSCI - * support we need to respond to kernel calls - */ - while (1) - wfe(); + struct cpu_info *ci = cpu_info(); + + ci->id = smp_processor_id(); + cpu_mark_online(ci); + + if (bsp) + cpu_set_bsp(); } static void secmon_el3_init(void) @@ -52,12 +54,12 @@ static void secmon_el3_init(void) isb(); } -static void secmon_init(void *arg) +static void secmon_init(struct secmon_params *params, int bsp) { struct exc_state exc_state; - struct secmon_params *params = arg; - printk(BIOS_DEBUG, "ARM64: secmon in %s\n", __func__); + exception_hwinit(); + cpu_init(bsp); secmon_el3_init(); @@ -66,18 +68,29 @@ static void secmon_init(void *arg) * 1) If yes, we make an EL2 transition to that entry point * 2) If no, we just wait */ - if (params == NULL) { - secmon_wait(); + if (params != NULL) { + memset(&exc_state, 0, sizeof(exc_state)); + exc_state.elx.spsr = + get_eret_el(params->elx_el, params->elx_mode); + + transition_with_entry(params->entry, params->arg, &exc_state); } - memset(&exc_state, 0, sizeof(exc_state)); - exc_state.elx.spsr = get_eret_el(params->elx_el, params->elx_mode); + arch_cpu_wait_for_action(); +} - transition_with_entry(params->entry, params->arg, &exc_state); +static void secmon_init_bsp(void *arg) +{ + secmon_init(arg, 1); +} + +static void secmon_init_nonbsp(void *arg) +{ + secmon_init(arg, 0); } /* * This variable holds entry point for secmon init code. Once the stacks are * setup by the stage_entry.S, it jumps to c_entry. */ -void (*c_entry)(void*) = &secmon_init; +void (*c_entry[2])(void*) = { &secmon_init_bsp, &secmon_init_nonbsp }; diff --git a/src/arch/arm64/armv8/secmon_loader.c b/src/arch/arm64/armv8/secmon_loader.c index 4d83764234..e571b51a6a 100644 --- a/src/arch/arm64/armv8/secmon_loader.c +++ b/src/arch/arm64/armv8/secmon_loader.c @@ -25,6 +25,7 @@ #include <arch/lib_helpers.h> #include <arch/secmon.h> #include <arch/spintable.h> +#include <arch/stages.h> #include <console/console.h> #include <rmodule.h> #include <string.h> @@ -85,15 +86,22 @@ struct secmon_runit { static void secmon_start(void *arg) { uint32_t scr; + secmon_entry_t entry; struct secmon_params *p = NULL; struct secmon_runit *r = arg; + entry = r->entry; + if (cpu_is_bsp()) p = &r->bsp_params; - else if (r->secondary_params.entry != NULL) - p = &r->secondary_params; + else { + entry = secondary_entry_point(entry); + if (r->secondary_params.entry != NULL) + p = &r->secondary_params; + } - printk(BIOS_DEBUG, "CPU%x entering secure monitor.\n", cpu_info()->id); + printk(BIOS_DEBUG, "CPU%x entering secure monitor %p.\n", + cpu_info()->id, entry); /* We want to enforce the following policies: * NS bit is set for lower EL @@ -102,7 +110,7 @@ static void secmon_start(void *arg) scr |= SCR_NS; raw_write_scr_el3(scr); - r->entry(p); + entry(p); } void secmon_run(void (*entry)(void *), void *cb_tables) |