예제 #1
0
	pr_info("found shared page at phys addr 0x%llx:\n",
		boot_params.tboot_addr);
	pr_debug("version: %d\n", tboot->version);
	pr_debug("log_addr: 0x%08x\n", tboot->log_addr);
	pr_debug("shutdown_entry: 0x%x\n", tboot->shutdown_entry);
	pr_debug("tboot_base: 0x%08x\n", tboot->tboot_base);
	pr_debug("tboot_size: 0x%x\n", tboot->tboot_size);
}

static pgd_t *tboot_pg_dir;
static struct mm_struct tboot_mm = {
	.mm_rb          = RB_ROOT,
	.pgd            = swapper_pg_dir,
	.mm_users       = ATOMIC_INIT(2),
	.mm_count       = ATOMIC_INIT(1),
	.mmap_sem       = __RWSEM_INITIALIZER(init_mm.mmap_sem),
	.page_table_lock =  __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
	.mmlist         = LIST_HEAD_INIT(init_mm.mmlist),
};

static inline void switch_to_tboot_pt(void)
{
	write_cr3(virt_to_phys(tboot_pg_dir));
}

static int map_tboot_page(unsigned long vaddr, unsigned long pfn,
			  pgprot_t prot)
{
	pgd_t *pgd;
	pud_t *pud;
	pmd_t *pmd;
예제 #2
0
#include <linux/slab.h>
#include <linux/spinlock.h>

#include <asm/cacheflush.h>
#include <asm/efi.h>
#include <asm/mmu.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>

extern u64 efi_system_table;

static struct mm_struct efi_mm = {
	.mm_rb			= RB_ROOT,
	.mm_users		= ATOMIC_INIT(2),
	.mm_count		= ATOMIC_INIT(1),
	.mmap_sem		= __RWSEM_INITIALIZER(efi_mm.mmap_sem),
	.page_table_lock	= __SPIN_LOCK_UNLOCKED(efi_mm.page_table_lock),
	.mmlist			= LIST_HEAD_INIT(efi_mm.mmlist),
};

#ifdef CONFIG_ARM64_PTDUMP_DEBUGFS
#include <asm/ptdump.h>

static struct ptdump_info efi_ptdump_info = {
	.mm		= &efi_mm,
	.markers	= (struct addr_marker[]){
		{ 0,		"UEFI runtime start" },
		{ TASK_SIZE_64,	"UEFI runtime end" }
	},
	.base_addr	= 0,
};
예제 #3
0
	.usage		= ATOMIC_INIT(3),
	.consq		= LIST_HEAD_INIT(root_key_user.consq),
	.lock		= SPIN_LOCK_UNLOCKED,
	.nkeys		= ATOMIC_INIT(2),
	.nikeys		= ATOMIC_INIT(2),
	.uid		= 0,
};

/* the root user's UID keyring */
struct key root_user_keyring = {
	.usage		= ATOMIC_INIT(1),
	.serial		= 2,
	.type		= &key_type_keyring,
	.user		= &root_key_user,
	.lock		= RW_LOCK_UNLOCKED,
	.sem		= __RWSEM_INITIALIZER(root_user_keyring.sem),
	.perm		= KEY_USR_ALL,
	.flags		= KEY_FLAG_INSTANTIATED,
	.description	= "_uid.0",
#ifdef KEY_DEBUGGING
	.magic		= KEY_DEBUG_MAGIC,
#endif
};

/* the root user's default session keyring */
struct key root_session_keyring = {
	.usage		= ATOMIC_INIT(1),
	.serial		= 1,
	.type		= &key_type_keyring,
	.user		= &root_key_user,
	.lock		= RW_LOCK_UNLOCKED,
예제 #4
0
			.first = 0,
			.lower_first = 0,
			.count = 4294967295U,
		},
	},
	.count = ATOMIC_INIT(3),
	.owner = GLOBAL_ROOT_UID,
	.group = GLOBAL_ROOT_GID,
	.ns.inum = PROC_USER_INIT_INO,
#ifdef CONFIG_USER_NS
	.ns.ops = &userns_operations,
#endif
	.flags = USERNS_INIT_FLAGS,
#ifdef CONFIG_PERSISTENT_KEYRINGS
	.persistent_keyring_register_sem =
	__RWSEM_INITIALIZER(init_user_ns.persistent_keyring_register_sem),
#endif
};
EXPORT_SYMBOL_GPL(init_user_ns);

#if 0
{
/*
 * UID task count cache, to get fast user lookup in "alloc_uid"
 * when changing user ID's (ie setuid() and friends).
 */

#define UIDHASH_BITS	(CONFIG_BASE_SMALL ? 3 : 7)
#define UIDHASH_SZ	(1 << UIDHASH_BITS)
#define UIDHASH_MASK		(UIDHASH_SZ - 1)
#define __uidhashfn(uid)	(((uid >> UIDHASH_BITS) + uid) & UIDHASH_MASK)