Differential D31261 Diff 93442 sys/arm64/arm64/machdep.c

Changeset View

Standalone View

sys/arm64/arm64/machdep.c

Show First 20 Lines • Show All 573 Lines • ▼ Show 20 Lines
#ifdef VFP		#ifdef VFP
vfp_reset_state(td, pcb);		vfp_reset_state(td, pcb);
#endif		#endif

/*		/*
* Clear debug register state. It is not applicable to the new process.		* Clear debug register state. It is not applicable to the new process.
*/		*/
bzero(&pcb->pcb_dbg_regs, sizeof(pcb->pcb_dbg_regs));		bzero(&pcb->pcb_dbg_regs, sizeof(pcb->pcb_dbg_regs));

		/* Generate new pointer authentication keys */
		ptrauth_exec(td);
}		}

/* Sanity check these are the same size, they will be memcpy'd to and fro */		/* Sanity check these are the same size, they will be memcpy'd to and fro */
CTASSERT(sizeof(((struct trapframe *)0)->tf_x) ==		CTASSERT(sizeof(((struct trapframe *)0)->tf_x) ==
sizeof((struct gpregs *)0)->gp_x);		sizeof((struct gpregs *)0)->gp_x);
CTASSERT(sizeof(((struct trapframe *)0)->tf_x) ==		CTASSERT(sizeof(((struct trapframe *)0)->tf_x) ==
sizeof((struct reg *)0)->x);		sizeof((struct reg *)0)->x);

▲ Show 20 Lines • Show All 335 Lines • ▼ Show 20 Lines	init_proc0(vm_offset_t kstack)
thread0.td_kstack = kstack;		thread0.td_kstack = kstack;
thread0.td_kstack_pages = KSTACK_PAGES;		thread0.td_kstack_pages = KSTACK_PAGES;
thread0.td_pcb = (struct pcb *)(thread0.td_kstack +		thread0.td_pcb = (struct pcb *)(thread0.td_kstack +
thread0.td_kstack_pages * PAGE_SIZE) - 1;		thread0.td_kstack_pages * PAGE_SIZE) - 1;
thread0.td_pcb->pcb_fpflags = 0;		thread0.td_pcb->pcb_fpflags = 0;
thread0.td_pcb->pcb_fpusaved = &thread0.td_pcb->pcb_fpustate;		thread0.td_pcb->pcb_fpusaved = &thread0.td_pcb->pcb_fpustate;
thread0.td_pcb->pcb_vfpcpu = UINT_MAX;		thread0.td_pcb->pcb_vfpcpu = UINT_MAX;
thread0.td_frame = &proc0_tf;		thread0.td_frame = &proc0_tf;
		ptrauth_thread0(&thread0);
pcpup->pc_curpcb = thread0.td_pcb;		pcpup->pc_curpcb = thread0.td_pcb;
}		}

typedef struct {		typedef struct {
uint32_t type;		uint32_t type;
uint64_t phys_start;		uint64_t phys_start;
uint64_t virt_start;		uint64_t virt_start;
uint64_t num_pages;		uint64_t num_pages;
▲ Show 20 Lines • Show All 398 Lines • ▼ Show 20 Lines	#endif

cninit();		cninit();
set_ttbr0(abp->kern_ttbr0);		set_ttbr0(abp->kern_ttbr0);
cpu_tlb_flushID();		cpu_tlb_flushID();

if (!valid)		if (!valid)
panic("Invalid bus configuration: %s",		panic("Invalid bus configuration: %s",
kern_getenv("kern.cfg.order"));		kern_getenv("kern.cfg.order"));

		/*
		* Check if pointer authentication is available on this system, and
		* if so enable its use. This needs to be called before init_proc0
		* as that will configure the thread0 pointer authentication keys.
		*/
		ptrauth_init();

/*		/*
* Dump the boot metadata. We have to wait for cninit() since console		* Dump the boot metadata. We have to wait for cninit() since console
* output is required. If it's grossly incorrect the kernel will never		* output is required. If it's grossly incorrect the kernel will never
* make it this far.		* make it this far.
*/		*/
if (getenv_is_true("debug.dump_modinfo_at_boot"))		if (getenv_is_true("debug.dump_modinfo_at_boot"))
preload_dump();		preload_dump();
▲ Show 20 Lines • Show All 151 Lines • Show Last 20 Lines