Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 454 deletions

diff --git a/ANDROID_3.4.5/arch/x86/kernel/tboot.c b/ANDROID_3.4.5/arch/x86/kernel/tboot.c
deleted file mode 100644
index 6410744a..00000000
--- a/ANDROID_3.4.5/arch/x86/kernel/tboot.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/*
- * tboot.c: main implementation of helper functions used by kernel for
- *          runtime support of Intel(R) Trusted Execution Technology
- *
- * Copyright (c) 2006-2009, Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include <linux/dma_remapping.h>
-#include <linux/init_task.h>
-#include <linux/spinlock.h>
-#include <linux/export.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/dmar.h>
-#include <linux/cpu.h>
-#include <linux/pfn.h>
-#include <linux/mm.h>
-#include <linux/tboot.h>
-
-#include <asm/trampoline.h>
-#include <asm/processor.h>
-#include <asm/bootparam.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/swiotlb.h>
-#include <asm/fixmap.h>
-#include <asm/proto.h>
-#include <asm/setup.h>
-#include <asm/e820.h>
-#include <asm/io.h>
-
-#include "acpi/realmode/wakeup.h"
-
-/* Global pointer to shared data; NULL means no measured launch. */
-struct tboot *tboot __read_mostly;
-EXPORT_SYMBOL(tboot);
-
-/* timeout for APs (in secs) to enter wait-for-SIPI state during shutdown */
-#define AP_WAIT_TIMEOUT		1
-
-#undef pr_fmt
-#define pr_fmt(fmt)	"tboot: " fmt
-
-static u8 tboot_uuid[16] __initdata = TBOOT_UUID;
-
-void __init tboot_probe(void)
-{
-	/* Look for valid page-aligned address for shared page. */
-	if (!boot_params.tboot_addr)
-		return;
-	/*
-	 * also verify that it is mapped as we expect it before calling
-	 * set_fixmap(), to reduce chance of garbage value causing crash
-	 */
-	if (!e820_any_mapped(boot_params.tboot_addr,
-			     boot_params.tboot_addr, E820_RESERVED)) {
-		pr_warning("non-0 tboot_addr but it is not of type E820_RESERVED\n");
-		return;
-	}
-
-	/* only a natively booted kernel should be using TXT */
-	if (paravirt_enabled()) {
-		pr_warning("non-0 tboot_addr but pv_ops is enabled\n");
-		return;
-	}
-
-	/* Map and check for tboot UUID. */
-	set_fixmap(FIX_TBOOT_BASE, boot_params.tboot_addr);
-	tboot = (struct tboot *)fix_to_virt(FIX_TBOOT_BASE);
-	if (memcmp(&tboot_uuid, &tboot->uuid, sizeof(tboot->uuid))) {
-		pr_warning("tboot at 0x%llx is invalid\n",
-			   boot_params.tboot_addr);
-		tboot = NULL;
-		return;
-	}
-	if (tboot->version < 5) {
-		pr_warning("tboot version is invalid: %u\n", tboot->version);
-		tboot = NULL;
-		return;
-	}
-
-	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;
-	pte_t *pte;
-
-	pgd = pgd_offset(&tboot_mm, vaddr);
-	pud = pud_alloc(&tboot_mm, pgd, vaddr);
-	if (!pud)
-		return -1;
-	pmd = pmd_alloc(&tboot_mm, pud, vaddr);
-	if (!pmd)
-		return -1;
-	pte = pte_alloc_map(&tboot_mm, NULL, pmd, vaddr);
-	if (!pte)
-		return -1;
-	set_pte_at(&tboot_mm, vaddr, pte, pfn_pte(pfn, prot));
-	pte_unmap(pte);
-	return 0;
-}
-
-static int map_tboot_pages(unsigned long vaddr, unsigned long start_pfn,
-			   unsigned long nr)
-{
-	/* Reuse the original kernel mapping */
-	tboot_pg_dir = pgd_alloc(&tboot_mm);
-	if (!tboot_pg_dir)
-		return -1;
-
-	for (; nr > 0; nr--, vaddr += PAGE_SIZE, start_pfn++) {
-		if (map_tboot_page(vaddr, start_pfn, PAGE_KERNEL_EXEC))
-			return -1;
-	}
-
-	return 0;
-}
-
-static void tboot_create_trampoline(void)
-{
-	u32 map_base, map_size;
-
-	/* Create identity map for tboot shutdown code. */
-	map_base = PFN_DOWN(tboot->tboot_base);
-	map_size = PFN_UP(tboot->tboot_size);
-	if (map_tboot_pages(map_base << PAGE_SHIFT, map_base, map_size))
-		panic("tboot: Error mapping tboot pages (mfns) @ 0x%x, 0x%x\n",
-		      map_base, map_size);
-}
-
-#ifdef CONFIG_ACPI_SLEEP
-
-static void add_mac_region(phys_addr_t start, unsigned long size)
-{
-	struct tboot_mac_region *mr;
-	phys_addr_t end = start + size;
-
-	if (tboot->num_mac_regions >= MAX_TB_MAC_REGIONS)
-		panic("tboot: Too many MAC regions\n");
-
-	if (start && size) {
-		mr = &tboot->mac_regions[tboot->num_mac_regions++];
-		mr->start = round_down(start, PAGE_SIZE);
-		mr->size  = round_up(end, PAGE_SIZE) - mr->start;
-	}
-}
-
-static int tboot_setup_sleep(void)
-{
-	int i;
-
-	tboot->num_mac_regions = 0;
-
-	for (i = 0; i < e820.nr_map; i++) {
-		if ((e820.map[i].type != E820_RAM)
-		 && (e820.map[i].type != E820_RESERVED_KERN))
-			continue;
-
-		add_mac_region(e820.map[i].addr, e820.map[i].size);
-	}
-
-	tboot->acpi_sinfo.kernel_s3_resume_vector = acpi_wakeup_address;
-
-	return 0;
-}
-
-#else /* no CONFIG_ACPI_SLEEP */
-
-static int tboot_setup_sleep(void)
-{
-	/* S3 shutdown requested, but S3 not supported by the kernel... */
-	BUG();
-	return -1;
-}
-
-#endif
-
-void tboot_shutdown(u32 shutdown_type)
-{
-	void (*shutdown)(void);
-
-	if (!tboot_enabled())
-		return;
-
-	/*
-	 * if we're being called before the 1:1 mapping is set up then just
-	 * return and let the normal shutdown happen; this should only be
-	 * due to very early panic()
-	 */
-	if (!tboot_pg_dir)
-		return;
-
-	/* if this is S3 then set regions to MAC */
-	if (shutdown_type == TB_SHUTDOWN_S3)
-		if (tboot_setup_sleep())
-			return;
-
-	tboot->shutdown_type = shutdown_type;
-
-	switch_to_tboot_pt();
-
-	shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry;
-	shutdown();
-
-	/* should not reach here */
-	while (1)
-		halt();
-}
-
-static void tboot_copy_fadt(const struct acpi_table_fadt *fadt)
-{
-#define TB_COPY_GAS(tbg, g)			\
-	tbg.space_id     = g.space_id;		\
-	tbg.bit_width    = g.bit_width;		\
-	tbg.bit_offset   = g.bit_offset;	\
-	tbg.access_width = g.access_width;	\
-	tbg.address      = g.address;
-
-	TB_COPY_GAS(tboot->acpi_sinfo.pm1a_cnt_blk, fadt->xpm1a_control_block);
-	TB_COPY_GAS(tboot->acpi_sinfo.pm1b_cnt_blk, fadt->xpm1b_control_block);
-	TB_COPY_GAS(tboot->acpi_sinfo.pm1a_evt_blk, fadt->xpm1a_event_block);
-	TB_COPY_GAS(tboot->acpi_sinfo.pm1b_evt_blk, fadt->xpm1b_event_block);
-
-	/*
-	 * We need phys addr of waking vector, but can't use virt_to_phys() on
-	 * &acpi_gbl_FACS because it is ioremap'ed, so calc from FACS phys
-	 * addr.
-	 */
-	tboot->acpi_sinfo.wakeup_vector = fadt->facs +
-		offsetof(struct acpi_table_facs, firmware_waking_vector);
-}
-
-static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control)
-{
-	static u32 acpi_shutdown_map[ACPI_S_STATE_COUNT] = {
-		/* S0,1,2: */ -1, -1, -1,
-		/* S3: */ TB_SHUTDOWN_S3,
-		/* S4: */ TB_SHUTDOWN_S4,
-		/* S5: */ TB_SHUTDOWN_S5 };
-
-	if (!tboot_enabled())
-		return 0;
-
-	tboot_copy_fadt(&acpi_gbl_FADT);
-	tboot->acpi_sinfo.pm1a_cnt_val = pm1a_control;
-	tboot->acpi_sinfo.pm1b_cnt_val = pm1b_control;
-	/* we always use the 32b wakeup vector */
-	tboot->acpi_sinfo.vector_width = 32;
-
-	if (sleep_state >= ACPI_S_STATE_COUNT ||
-	    acpi_shutdown_map[sleep_state] == -1) {
-		pr_warning("unsupported sleep state 0x%x\n", sleep_state);
-		return -1;
-	}
-
-	tboot_shutdown(acpi_shutdown_map[sleep_state]);
-	return 0;
-}
-
-static atomic_t ap_wfs_count;
-
-static int tboot_wait_for_aps(int num_aps)
-{
-	unsigned long timeout;
-
-	timeout = AP_WAIT_TIMEOUT*HZ;
-	while (atomic_read((atomic_t *)&tboot->num_in_wfs) != num_aps &&
-	       timeout) {
-		mdelay(1);
-		timeout--;
-	}
-
-	if (timeout)
-		pr_warning("tboot wait for APs timeout\n");
-
-	return !(atomic_read((atomic_t *)&tboot->num_in_wfs) == num_aps);
-}
-
-static int __cpuinit tboot_cpu_callback(struct notifier_block *nfb,
-			unsigned long action, void *hcpu)
-{
-	switch (action) {
-	case CPU_DYING:
-		atomic_inc(&ap_wfs_count);
-		if (num_online_cpus() == 1)
-			if (tboot_wait_for_aps(atomic_read(&ap_wfs_count)))
-				return NOTIFY_BAD;
-		break;
-	}
-	return NOTIFY_OK;
-}
-
-static struct notifier_block tboot_cpu_notifier __cpuinitdata =
-{
-	.notifier_call = tboot_cpu_callback,
-};
-
-static __init int tboot_late_init(void)
-{
-	if (!tboot_enabled())
-		return 0;
-
-	tboot_create_trampoline();
-
-	atomic_set(&ap_wfs_count, 0);
-	register_hotcpu_notifier(&tboot_cpu_notifier);
-
-	acpi_os_set_prepare_sleep(&tboot_sleep);
-	return 0;
-}
-
-late_initcall(tboot_late_init);
-
-/*
- * TXT configuration registers (offsets from TXT_{PUB, PRIV}_CONFIG_REGS_BASE)
- */
-
-#define TXT_PUB_CONFIG_REGS_BASE       0xfed30000
-#define TXT_PRIV_CONFIG_REGS_BASE      0xfed20000
-
-/* # pages for each config regs space - used by fixmap */
-#define NR_TXT_CONFIG_PAGES     ((TXT_PUB_CONFIG_REGS_BASE -                \
-				  TXT_PRIV_CONFIG_REGS_BASE) >> PAGE_SHIFT)
-
-/* offsets from pub/priv config space */
-#define TXTCR_HEAP_BASE             0x0300
-#define TXTCR_HEAP_SIZE             0x0308
-
-#define SHA1_SIZE      20
-
-struct sha1_hash {
-	u8 hash[SHA1_SIZE];
-};
-
-struct sinit_mle_data {
-	u32               version;             /* currently 6 */
-	struct sha1_hash  bios_acm_id;
-	u32               edx_senter_flags;
-	u64               mseg_valid;
-	struct sha1_hash  sinit_hash;
-	struct sha1_hash  mle_hash;
-	struct sha1_hash  stm_hash;
-	struct sha1_hash  lcp_policy_hash;
-	u32               lcp_policy_control;
-	u32               rlp_wakeup_addr;
-	u32               reserved;
-	u32               num_mdrs;
-	u32               mdrs_off;
-	u32               num_vtd_dmars;
-	u32               vtd_dmars_off;
-} __packed;
-
-struct acpi_table_header *tboot_get_dmar_table(struct acpi_table_header *dmar_tbl)
-{
-	void *heap_base, *heap_ptr, *config;
-
-	if (!tboot_enabled())
-		return dmar_tbl;
-
-	/*
-	 * ACPI tables may not be DMA protected by tboot, so use DMAR copy
-	 * SINIT saved in SinitMleData in TXT heap (which is DMA protected)
-	 */
-
-	/* map config space in order to get heap addr */
-	config = ioremap(TXT_PUB_CONFIG_REGS_BASE, NR_TXT_CONFIG_PAGES *
-			 PAGE_SIZE);
-	if (!config)
-		return NULL;
-
-	/* now map TXT heap */
-	heap_base = ioremap(*(u64 *)(config + TXTCR_HEAP_BASE),
-			    *(u64 *)(config + TXTCR_HEAP_SIZE));
-	iounmap(config);
-	if (!heap_base)
-		return NULL;
-
-	/* walk heap to SinitMleData */
-	/* skip BiosData */
-	heap_ptr = heap_base + *(u64 *)heap_base;
-	/* skip OsMleData */
-	heap_ptr += *(u64 *)heap_ptr;
-	/* skip OsSinitData */
-	heap_ptr += *(u64 *)heap_ptr;
-	/* now points to SinitMleDataSize; set to SinitMleData */
-	heap_ptr += sizeof(u64);
-	/* get addr of DMAR table */
-	dmar_tbl = (struct acpi_table_header *)(heap_ptr +
-		   ((struct sinit_mle_data *)heap_ptr)->vtd_dmars_off -
-		   sizeof(u64));
-
-	/* don't unmap heap because dmar.c needs access to this */
-
-	return dmar_tbl;
-}
-
-int tboot_force_iommu(void)
-{
-	if (!tboot_enabled())
-		return 0;
-
-	if (no_iommu || swiotlb || dmar_disabled)
-		pr_warning("Forcing Intel-IOMMU to enabled\n");
-
-	dmar_disabled = 0;
-#ifdef CONFIG_SWIOTLB
-	swiotlb = 0;
-#endif
-	no_iommu = 0;
-
-	return 1;
-}