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[platform][qemu-virt-arm] spiff up the PSCI call to boot the secondary cpus

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Add a few comments and print something in case of error.
This commit is contained in:
Travis Geiselbrecht
2020-12-17 01:40:40 -08:00
parent 3194e45807
commit 431543a9bf
1 changed files with 7 additions and 3 deletions
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10
platform/qemu-virt-arm/platform.c
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@@ -63,7 +63,7 @@ static pmm_arena_t arena = {
.flags = PMM_ARENA_FLAG_KMAP,
};
extern void psci_call(ulong arg0, ulong arg1, ulong arg2, ulong arg3);
extern int psci_call(ulong arg0, ulong arg1, ulong arg2, ulong arg3);
// callbacks to the fdt_walk routine
static void memcallback(uint64_t base, uint64_t len, void *cookie) {
@@ -146,8 +146,12 @@ void platform_early_init(void) {
#if ARCH_ARM64
psci_call_num += 0x40000000; /* SMC64 */
#endif
for (int i = 1; i < cpu_count; i++) {
psci_call(psci_call_num, i, MEMBASE + KERNEL_LOAD_OFFSET, 0);
for (int cpuid = 1; cpuid < cpu_count; cpuid++) {
/* note: assumes cpuids are numbered like MPIDR 0:0:0:N */
int ret = psci_call(psci_call_num, cpuid, MEMBASE + KERNEL_LOAD_OFFSET, cpuid);
if (ret != 0) {
printf("ERROR: psci CPU_ON returns %d\n", ret);
}
}
}