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Skeleton smcCpuOff, fix building, fix smcConfigureCarveout

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This commit is contained in:
Michael Scire 2018-02-26 17:41:31 -08:00
parent 23e9a8369a
commit c4789a5a11
5 changed files with 49 additions and 3 deletions
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30
exosphere/src/cpu_context.c
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@ -1,5 +1,8 @@
#include <stdbool.h>
#include <stdint.h>
#include "cache.h"
#include "cpu_context.h"
#include "flow.h"
#include "pmc.h"
#include "timers.h"
#include "utils.h"
@ -56,7 +59,34 @@ uint32_t cpu_on(uint32_t core, uint64_t entrypoint_addr, uint64_t argument) {
return 0;
}
void power_down_current_core(void) {
unsigned int current_core = get_core_id();
flow_set_csr(current_core, 0);
flow_set_halt_events(current_core, 0);
flow_set_cc4_ctrl(current_core, 0);
save_current_core_context();
g_cpu_contexts[current_core].is_active = 0;
flush_dcache_all();
/* TODO: wait_for_power_off(), which writes to regs + . */
}
uint32_t cpu_off(void) {
if (get_core_id() == 3) {
power_down_current_core();
} else {
/* TODO: call_with_stack_pointer(get_powerdown_stack(), power_down_current_core); */
}
while (true) {
/* Wait forever. */
}
return 0;
}
void save_current_core_context(void) {
/* TODO */
}
void restore_current_core_context(void) {
/* TODO */
}