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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] Bring TPM driver files to 2.6.18 level. Remove the tpm.c so that the
# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1171549310 0
# Node ID f9c079fca14379048be0d732dcddcd8a8db4b74d
# Parent 296d7aa451a3f23d80101844e27d1f36aff556d4
Bring TPM driver files to 2.6.18 level. Remove the tpm.c so that the
one from the kernel can be used and reduce changes to a minimum
required to compile the xen-specific driver.
Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxx>
---
linux-2.6-xen-sparse/drivers/char/tpm/tpm.c | 1222 -----------------------
linux-2.6-xen-sparse/drivers/char/tpm/Kconfig | 2
linux-2.6-xen-sparse/drivers/char/tpm/tpm.h | 24
linux-2.6-xen-sparse/drivers/char/tpm/tpm_vtpm.c | 3
4 files changed, 1 insertion(+), 1250 deletions(-)
diff -r 296d7aa451a3 -r f9c079fca143
linux-2.6-xen-sparse/drivers/char/tpm/Kconfig
--- a/linux-2.6-xen-sparse/drivers/char/tpm/Kconfig Thu Feb 15 14:20:05
2007 +0000
+++ b/linux-2.6-xen-sparse/drivers/char/tpm/Kconfig Thu Feb 15 14:21:50
2007 +0000
@@ -22,7 +22,7 @@ config TCG_TPM
config TCG_TIS
tristate "TPM Interface Specification 1.2 Interface"
- depends on TCG_TPM
+ depends on TCG_TPM && PNPACPI
---help---
If you have a TPM security chip that is compliant with the
TCG TIS 1.2 TPM specification say Yes and it will be accessible
diff -r 296d7aa451a3 -r f9c079fca143 linux-2.6-xen-sparse/drivers/char/tpm/tpm.c
--- a/linux-2.6-xen-sparse/drivers/char/tpm/tpm.c Thu Feb 15 14:20:05
2007 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1222 +0,0 @@
-/*
- * Copyright (C) 2004 IBM Corporation
- *
- * Authors:
- * Leendert van Doorn <leendert@xxxxxxxxxxxxxx>
- * Dave Safford <safford@xxxxxxxxxxxxxx>
- * Reiner Sailer <sailer@xxxxxxxxxxxxxx>
- * Kylene Hall <kjhall@xxxxxxxxxx>
- *
- * Maintained by: <tpmdd_devel@xxxxxxxxxxxxxxxxxxxxx>
- *
- * Device driver for TCG/TCPA TPM (trusted platform module).
- * Specifications at www.trustedcomputinggroup.org
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- * Note, the TPM chip is not interrupt driven (only polling)
- * and can have very long timeouts (minutes!). Hence the unusual
- * calls to msleep.
- *
- */
-
-#include <linux/sched.h>
-#include <linux/poll.h>
-#include <linux/spinlock.h>
-#include "tpm.h"
-
-enum tpm_const {
- TPM_MINOR = 224, /* officially assigned */
-#ifndef CONFIG_XEN
- TPM_BUFSIZE = 2048,
-#endif
- TPM_NUM_DEVICES = 256,
-};
-
-enum tpm_duration {
- TPM_SHORT = 0,
- TPM_MEDIUM = 1,
- TPM_LONG = 2,
- TPM_UNDEFINED,
-};
-
-#define TPM_MAX_ORDINAL 243
-#define TPM_MAX_PROTECTED_ORDINAL 12
-#define TPM_PROTECTED_ORDINAL_MASK 0xFF
-
-static LIST_HEAD(tpm_chip_list);
-static DEFINE_SPINLOCK(driver_lock);
-static DECLARE_BITMAP(dev_mask, TPM_NUM_DEVICES);
-
-/*
- * Array with one entry per ordinal defining the maximum amount
- * of time the chip could take to return the result. The ordinal
- * designation of short, medium or long is defined in a table in
- * TCG Specification TPM Main Part 2 TPM Structures Section 17. The
- * values of the SHORT, MEDIUM, and LONG durations are retrieved
- * from the chip during initialization with a call to tpm_get_timeouts.
- */
-static const u8 tpm_protected_ordinal_duration[TPM_MAX_PROTECTED_ORDINAL] = {
- TPM_UNDEFINED, /* 0 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 5 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 10 */
- TPM_SHORT,
-};
-
-static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = {
- TPM_UNDEFINED, /* 0 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 5 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 10 */
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_LONG,
- TPM_LONG,
- TPM_MEDIUM, /* 15 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_LONG,
- TPM_SHORT, /* 20 */
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_SHORT, /* 25 */
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_MEDIUM, /* 30 */
- TPM_LONG,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT, /* 35 */
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_MEDIUM, /* 40 */
- TPM_LONG,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT, /* 45 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_LONG,
- TPM_MEDIUM, /* 50 */
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 55 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_MEDIUM, /* 60 */
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_MEDIUM, /* 65 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 70 */
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 75 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_LONG, /* 80 */
- TPM_UNDEFINED,
- TPM_MEDIUM,
- TPM_LONG,
- TPM_SHORT,
- TPM_UNDEFINED, /* 85 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 90 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED, /* 95 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_MEDIUM, /* 100 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 105 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 110 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT, /* 115 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_LONG, /* 120 */
- TPM_LONG,
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_SHORT,
- TPM_SHORT, /* 125 */
- TPM_SHORT,
- TPM_LONG,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT, /* 130 */
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_UNDEFINED, /* 135 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 140 */
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 145 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 150 */
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED, /* 155 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 160 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 165 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_LONG, /* 170 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 175 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_MEDIUM, /* 180 */
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_MEDIUM, /* 185 */
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 190 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 195 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 200 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT,
- TPM_SHORT, /* 205 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_MEDIUM, /* 210 */
- TPM_UNDEFINED,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_UNDEFINED, /* 215 */
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT,
- TPM_SHORT, /* 220 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED, /* 225 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 230 */
- TPM_LONG,
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 235 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 240 */
- TPM_UNDEFINED,
- TPM_MEDIUM,
-};
-
-static void user_reader_timeout(unsigned long ptr)
-{
- struct tpm_chip *chip = (struct tpm_chip *) ptr;
-
- schedule_work(&chip->work);
-}
-
-static void timeout_work(void *ptr)
-{
- struct tpm_chip *chip = ptr;
-
- down(&chip->buffer_mutex);
- atomic_set(&chip->data_pending, 0);
-#ifndef CONFIG_XEN
- memset(chip->data_buffer, 0, TPM_BUFSIZE);
-#else
- memset(chip->data_buffer, 0, get_chip_buffersize(chip));
-#endif
- up(&chip->buffer_mutex);
-}
-
-/*
- * Returns max number of jiffies to wait
- */
-unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip,
- u32 ordinal)
-{
- int duration_idx = TPM_UNDEFINED;
- int duration = 0;
-
- if (ordinal < TPM_MAX_ORDINAL)
- duration_idx = tpm_ordinal_duration[ordinal];
- else if ((ordinal & TPM_PROTECTED_ORDINAL_MASK) <
- TPM_MAX_PROTECTED_ORDINAL)
- duration_idx =
- tpm_protected_ordinal_duration[ordinal &
- TPM_PROTECTED_ORDINAL_MASK];
-
- if (duration_idx != TPM_UNDEFINED)
- duration = chip->vendor.duration[duration_idx];
- if (duration <= 0)
- return 2 * 60 * HZ;
- else
- return duration;
-}
-EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration);
-
-/*
- * Internal kernel interface to transmit TPM commands
- */
-static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
- size_t bufsiz)
-{
- ssize_t rc;
- u32 count, ordinal;
- unsigned long stop;
-
- count = be32_to_cpu(*((__be32 *) (buf + 2)));
- ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
- if (count == 0)
- return -ENODATA;
- if (count > bufsiz) {
- dev_err(chip->dev,
- "invalid count value %x %zx \n", count, bufsiz);
- return -E2BIG;
- }
-
- down(&chip->tpm_mutex);
-
- if ((rc = chip->vendor.send(chip, (u8 *) buf, count)) < 0) {
- dev_err(chip->dev,
- "tpm_transmit: tpm_send: error %zd\n", rc);
- goto out;
- }
-
- if (chip->vendor.irq)
- goto out_recv;
-
- stop = jiffies + tpm_calc_ordinal_duration(chip, ordinal);
- do {
- u8 status = chip->vendor.status(chip);
- if ((status & chip->vendor.req_complete_mask) ==
- chip->vendor.req_complete_val)
- goto out_recv;
-
- if ((status == chip->vendor.req_canceled)) {
- dev_err(chip->dev, "Operation Canceled\n");
- rc = -ECANCELED;
- goto out;
- }
-
- msleep(TPM_TIMEOUT); /* CHECK */
- rmb();
- } while (time_before(jiffies, stop));
-
- chip->vendor.cancel(chip);
- dev_err(chip->dev, "Operation Timed out\n");
- rc = -ETIME;
- goto out;
-
-out_recv:
- rc = chip->vendor.recv(chip, (u8 *) buf, bufsiz);
- if (rc < 0)
- dev_err(chip->dev,
- "tpm_transmit: tpm_recv: error %zd\n", rc);
-out:
- up(&chip->tpm_mutex);
- return rc;
-}
-
-#define TPM_DIGEST_SIZE 20
-#define TPM_ERROR_SIZE 10
-#define TPM_RET_CODE_IDX 6
-#define TPM_GET_CAP_RET_SIZE_IDX 10
-#define TPM_GET_CAP_RET_UINT32_1_IDX 14
-#define TPM_GET_CAP_RET_UINT32_2_IDX 18
-#define TPM_GET_CAP_RET_UINT32_3_IDX 22
-#define TPM_GET_CAP_RET_UINT32_4_IDX 26
-#define TPM_GET_CAP_PERM_DISABLE_IDX 16
-#define TPM_GET_CAP_PERM_INACTIVE_IDX 18
-#define TPM_GET_CAP_RET_BOOL_1_IDX 14
-#define TPM_GET_CAP_TEMP_INACTIVE_IDX 16
-
-#define TPM_CAP_IDX 13
-#define TPM_CAP_SUBCAP_IDX 21
-
-enum tpm_capabilities {
- TPM_CAP_FLAG = 4,
- TPM_CAP_PROP = 5,
-};
-
-enum tpm_sub_capabilities {
- TPM_CAP_PROP_PCR = 0x1,
- TPM_CAP_PROP_MANUFACTURER = 0x3,
- TPM_CAP_FLAG_PERM = 0x8,
- TPM_CAP_FLAG_VOL = 0x9,
- TPM_CAP_PROP_OWNER = 0x11,
- TPM_CAP_PROP_TIS_TIMEOUT = 0x15,
- TPM_CAP_PROP_TIS_DURATION = 0x20,
-};
-
-/*
- * This is a semi generic GetCapability command for use
- * with the capability type TPM_CAP_PROP or TPM_CAP_FLAG
- * and their associated sub_capabilities.
- */
-
-static const u8 tpm_cap[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 22, /* length */
- 0, 0, 0, 101, /* TPM_ORD_GetCapability */
- 0, 0, 0, 0, /* TPM_CAP_<TYPE> */
- 0, 0, 0, 4, /* TPM_CAP_SUB_<TYPE> size */
- 0, 0, 1, 0 /* TPM_CAP_SUB_<TYPE> */
-};
-
-static ssize_t transmit_cmd(struct tpm_chip *chip, u8 *data, int len,
- char *desc)
-{
- int err;
-
- len = tpm_transmit(chip, data, len);
- if (len < 0)
- return len;
- if (len == TPM_ERROR_SIZE) {
- err = be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX)));
- dev_dbg(chip->dev, "A TPM error (%d) occurred %s\n", err, desc);
- return err;
- }
- return 0;
-}
-
-void tpm_gen_interrupt(struct tpm_chip *chip)
-{
- u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)];
- ssize_t rc;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to determine the timeouts");
-}
-EXPORT_SYMBOL_GPL(tpm_gen_interrupt);
-
-void tpm_get_timeouts(struct tpm_chip *chip)
-{
- u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)];
- ssize_t rc;
- u32 timeout;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to determine the timeouts");
- if (rc)
- goto duration;
-
- if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX)))
- != 4 * sizeof(u32))
- goto duration;
-
- /* Don't overwrite default if value is 0 */
- timeout =
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)));
- if (timeout)
- chip->vendor.timeout_a = msecs_to_jiffies(timeout);
- timeout =
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_2_IDX)));
- if (timeout)
- chip->vendor.timeout_b = msecs_to_jiffies(timeout);
- timeout =
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_3_IDX)));
- if (timeout)
- chip->vendor.timeout_c = msecs_to_jiffies(timeout);
- timeout =
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_4_IDX)));
- if (timeout)
- chip->vendor.timeout_d = msecs_to_jiffies(timeout);
-
-duration:
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_DURATION;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to determine the durations");
- if (rc)
- return;
-
- if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX)))
- != 3 * sizeof(u32))
- return;
-
- chip->vendor.duration[TPM_SHORT] =
- msecs_to_jiffies(be32_to_cpu
- (*((__be32 *) (data +
- TPM_GET_CAP_RET_UINT32_1_IDX))));
- chip->vendor.duration[TPM_MEDIUM] =
- msecs_to_jiffies(be32_to_cpu
- (*((__be32 *) (data +
- TPM_GET_CAP_RET_UINT32_2_IDX))));
- chip->vendor.duration[TPM_LONG] =
- msecs_to_jiffies(be32_to_cpu
- (*((__be32 *) (data +
- TPM_GET_CAP_RET_UINT32_3_IDX))));
-}
-EXPORT_SYMBOL_GPL(tpm_get_timeouts);
-
-void tpm_continue_selftest(struct tpm_chip *chip)
-{
- u8 data[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 10, /* length */
- 0, 0, 0, 83, /* TPM_ORD_GetCapability */
- };
-
- tpm_transmit(chip, data, sizeof(data));
-}
-EXPORT_SYMBOL_GPL(tpm_continue_selftest);
-
-ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr,
- char *buf)
-{
- u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 35)];
- ssize_t rc;
-
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_FLAG;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attemtping to determine the permanent state");
- if (rc)
- return 0;
- return sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_DISABLE_IDX]);
-}
-EXPORT_SYMBOL_GPL(tpm_show_enabled);
-
-ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr,
- char *buf)
-{
- u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 35)];
- ssize_t rc;
-
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_FLAG;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attemtping to determine the permanent state");
- if (rc)
- return 0;
- return sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_INACTIVE_IDX]);
-}
-EXPORT_SYMBOL_GPL(tpm_show_active);
-
-ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr,
- char *buf)
-{
- u8 data[sizeof(tpm_cap)];
- ssize_t rc;
-
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_OWNER;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to determine the owner state");
- if (rc)
- return 0;
- return sprintf(buf, "%d\n", data[TPM_GET_CAP_RET_BOOL_1_IDX]);
-}
-EXPORT_SYMBOL_GPL(tpm_show_owned);
-
-ssize_t tpm_show_temp_deactivated(struct device * dev,
- struct device_attribute * attr, char *buf)
-{
- u8 data[sizeof(tpm_cap)];
- ssize_t rc;
-
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_FLAG;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_VOL;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to determine the temporary state");
- if (rc)
- return 0;
- return sprintf(buf, "%d\n", data[TPM_GET_CAP_TEMP_INACTIVE_IDX]);
-}
-EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
-
-static const u8 pcrread[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 14, /* length */
- 0, 0, 0, 21, /* TPM_ORD_PcrRead */
- 0, 0, 0, 0 /* PCR index */
-};
-
-ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(pcrread)), 30)];
- ssize_t rc;
- int i, j, num_pcrs;
- __be32 index;
- char *str = buf;
-
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_PCR;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to determine the number of PCRS");
- if (rc)
- return 0;
-
- num_pcrs = be32_to_cpu(*((__be32 *) (data + 14)));
- for (i = 0; i < num_pcrs; i++) {
- memcpy(data, pcrread, sizeof(pcrread));
- index = cpu_to_be32(i);
- memcpy(data + 10, &index, 4);
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to read a PCR");
- if (rc)
- goto out;
- str += sprintf(str, "PCR-%02d: ", i);
- for (j = 0; j < TPM_DIGEST_SIZE; j++)
- str += sprintf(str, "%02X ", *(data + 10 + j));
- str += sprintf(str, "\n");
- }
-out:
- return str - buf;
-}
-EXPORT_SYMBOL_GPL(tpm_show_pcrs);
-
-#define READ_PUBEK_RESULT_SIZE 314
-static const u8 readpubek[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 30, /* length */
- 0, 0, 0, 124, /* TPM_ORD_ReadPubek */
-};
-
-ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- u8 *data;
- ssize_t err;
- int i, rc;
- char *str = buf;
-
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- data = kzalloc(READ_PUBEK_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- memcpy(data, readpubek, sizeof(readpubek));
-
- err = transmit_cmd(chip, data, READ_PUBEK_RESULT_SIZE,
- "attempting to read the PUBEK");
- if (err)
- goto out;
-
- /*
- ignore header 10 bytes
- algorithm 32 bits (1 == RSA )
- encscheme 16 bits
- sigscheme 16 bits
- parameters (RSA 12->bytes: keybit, #primes, expbit)
- keylenbytes 32 bits
- 256 byte modulus
- ignore checksum 20 bytes
- */
-
- str +=
- sprintf(str,
- "Algorithm: %02X %02X %02X %02X\nEncscheme: %02X %02X\n"
- "Sigscheme: %02X %02X\nParameters: %02X %02X %02X %02X"
- " %02X %02X %02X %02X %02X %02X %02X %02X\n"
- "Modulus length: %d\nModulus: \n",
- data[10], data[11], data[12], data[13], data[14],
- data[15], data[16], data[17], data[22], data[23],
- data[24], data[25], data[26], data[27], data[28],
- data[29], data[30], data[31], data[32], data[33],
- be32_to_cpu(*((__be32 *) (data + 34))));
-
- for (i = 0; i < 256; i++) {
- str += sprintf(str, "%02X ", data[i + 38]);
- if ((i + 1) % 16 == 0)
- str += sprintf(str, "\n");
- }
-out:
- rc = str - buf;
- kfree(data);
- return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_pubek);
-
-#define CAP_VERSION_1_1 6
-#define CAP_VERSION_1_2 0x1A
-#define CAP_VERSION_IDX 13
-static const u8 cap_version[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 18, /* length */
- 0, 0, 0, 101, /* TPM_ORD_GetCapability */
- 0, 0, 0, 0,
- 0, 0, 0, 0
-};
-
-ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(cap_version)),
30)];
- ssize_t rc;
- char *str = buf;
-
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER;
-
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to determine the manufacturer");
- if (rc)
- return 0;
-
- str += sprintf(str, "Manufacturer: 0x%x\n",
- be32_to_cpu(*((__be32 *) (data +
TPM_GET_CAP_RET_UINT32_1_IDX))));
-
- memcpy(data, cap_version, sizeof(cap_version));
- data[CAP_VERSION_IDX] = CAP_VERSION_1_1;
- rc = transmit_cmd(chip, data, sizeof(data),
- "attempting to determine the 1.1 version");
- if (rc)
- goto out;
-
- str += sprintf(str,
- "TCG version: %d.%d\nFirmware version: %d.%d\n",
- (int) data[14], (int) data[15], (int) data[16],
- (int) data[17]);
-
-out:
- return str - buf;
-}
-EXPORT_SYMBOL_GPL(tpm_show_caps);
-
-ssize_t tpm_show_caps_1_2(struct device * dev,
- struct device_attribute * attr, char *buf)
-{
- u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(cap_version)),
30)];
- ssize_t len;
- char *str = buf;
-
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER;
-
- if ((len = tpm_transmit(chip, data, sizeof(data))) <=
- TPM_ERROR_SIZE) {
- dev_dbg(chip->dev, "A TPM error (%d) occurred "
- "attempting to determine the manufacturer\n",
- be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX))));
- return 0;
- }
-
- str += sprintf(str, "Manufacturer: 0x%x\n",
- be32_to_cpu(*((__be32 *) (data +
TPM_GET_CAP_RET_UINT32_1_IDX))));
-
- memcpy(data, cap_version, sizeof(cap_version));
- data[CAP_VERSION_IDX] = CAP_VERSION_1_2;
-
- if ((len = tpm_transmit(chip, data, sizeof(data))) <=
- TPM_ERROR_SIZE) {
- dev_err(chip->dev, "A TPM error (%d) occurred "
- "attempting to determine the 1.2 version\n",
- be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX))));
- goto out;
- }
- str += sprintf(str,
- "TCG version: %d.%d\nFirmware version: %d.%d\n",
- (int) data[16], (int) data[17], (int) data[18],
- (int) data[19]);
-
-out:
- return str - buf;
-}
-EXPORT_SYMBOL_GPL(tpm_show_caps_1_2);
-
-ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return 0;
-
- chip->vendor.cancel(chip);
- return count;
-}
-EXPORT_SYMBOL_GPL(tpm_store_cancel);
-
-/*
- * Device file system interface to the TPM
- */
-int tpm_open(struct inode *inode, struct file *file)
-{
- int rc = 0, minor = iminor(inode);
- struct tpm_chip *chip = NULL, *pos;
-
- spin_lock(&driver_lock);
-
- list_for_each_entry(pos, &tpm_chip_list, list) {
- if (pos->vendor.miscdev.minor == minor) {
- chip = pos;
- break;
- }
- }
-
- if (chip == NULL) {
- rc = -ENODEV;
- goto err_out;
- }
-
- if (chip->num_opens) {
- dev_dbg(chip->dev, "Another process owns this TPM\n");
- rc = -EBUSY;
- goto err_out;
- }
-
- chip->num_opens++;
- get_device(chip->dev);
-
- spin_unlock(&driver_lock);
-
-#ifndef CONFIG_XEN
- chip->data_buffer = kmalloc(TPM_BUFSIZE * sizeof(u8), GFP_KERNEL);
-#else
- chip->data_buffer = kmalloc(get_chip_buffersize(chip) * sizeof(u8),
- GFP_KERNEL);
-#endif
- if (chip->data_buffer == NULL) {
- chip->num_opens--;
- put_device(chip->dev);
- return -ENOMEM;
- }
-
- atomic_set(&chip->data_pending, 0);
-
- file->private_data = chip;
- return 0;
-
-err_out:
- spin_unlock(&driver_lock);
- return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_open);
-
-int tpm_release(struct inode *inode, struct file *file)
-{
- struct tpm_chip *chip = file->private_data;
-
- spin_lock(&driver_lock);
- file->private_data = NULL;
- chip->num_opens--;
- del_singleshot_timer_sync(&chip->user_read_timer);
- flush_scheduled_work();
- atomic_set(&chip->data_pending, 0);
- put_device(chip->dev);
- kfree(chip->data_buffer);
- spin_unlock(&driver_lock);
- return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_release);
-
-ssize_t tpm_write(struct file *file, const char __user *buf,
- size_t size, loff_t *off)
-{
- struct tpm_chip *chip = file->private_data;
- int in_size = size, out_size;
-
- /* cannot perform a write until the read has cleared
- either via tpm_read or a user_read_timer timeout */
- while (atomic_read(&chip->data_pending) != 0)
- msleep(TPM_TIMEOUT);
-
- down(&chip->buffer_mutex);
-
-#ifndef CONFIG_XEN
- if (in_size > TPM_BUFSIZE)
- in_size = TPM_BUFSIZE;
-#else
- if (in_size > get_chip_buffersize(chip))
- in_size = get_chip_buffersize(chip);
-#endif
-
- if (copy_from_user
- (chip->data_buffer, (void __user *) buf, in_size)) {
- up(&chip->buffer_mutex);
- return -EFAULT;
- }
-
- /* atomic tpm command send and result receive */
-#ifndef CONFIG_XEN
- out_size = tpm_transmit(chip, chip->data_buffer, TPM_BUFSIZE);
-#else
- out_size = tpm_transmit(chip, chip->data_buffer,
- get_chip_buffersize(chip));
-#endif
-
- atomic_set(&chip->data_pending, out_size);
-#ifdef CONFIG_XEN
- atomic_set(&chip->data_position, 0);
-#endif
- up(&chip->buffer_mutex);
-
- /* Set a timeout by which the reader must come claim the result */
- mod_timer(&chip->user_read_timer, jiffies + (60 * HZ));
-
- return in_size;
-}
-EXPORT_SYMBOL_GPL(tpm_write);
-
-ssize_t tpm_read(struct file *file, char __user *buf,
- size_t size, loff_t *off)
-{
- struct tpm_chip *chip = file->private_data;
- int ret_size;
-#ifdef CONFIG_XEN
- int pos, pending = 0;
-#endif
-
-#ifndef CONFIG_XEN
- del_singleshot_timer_sync(&chip->user_read_timer);
- flush_scheduled_work();
-#endif
- ret_size = atomic_read(&chip->data_pending);
-#ifndef CONFIG_XEN
- atomic_set(&chip->data_pending, 0);
-#endif
- if (ret_size > 0) { /* relay data */
- if (size < ret_size)
- ret_size = size;
-
-#ifdef CONFIG_XEN
- pos = atomic_read(&chip->data_position);
-#endif
- down(&chip->buffer_mutex);
-#ifndef CONFIG_XEN
- if (copy_to_user(buf, chip->data_buffer, ret_size))
-#else
- if (copy_to_user(buf, &chip->data_buffer[pos], ret_size)) {
-#endif
- ret_size = -EFAULT;
-#ifdef CONFIG_XEN
- } else {
- pending = atomic_read(&chip->data_pending) - ret_size;
- if ( pending ) {
- atomic_set(&chip->data_pending, pending);
- atomic_set(&chip->data_position,
- pos+ret_size);
- }
- }
-#endif
- up(&chip->buffer_mutex);
- }
-
-#ifdef CONFIG_XEN
- if ( ret_size <= 0 || pending == 0 ) {
- atomic_set(&chip->data_pending, 0);
- del_singleshot_timer_sync(&chip->user_read_timer);
- flush_scheduled_work();
- }
-#endif
- return ret_size;
-}
-EXPORT_SYMBOL_GPL(tpm_read);
-
-void tpm_remove_hardware(struct device *dev)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
-
- if (chip == NULL) {
- dev_err(dev, "No device data found\n");
- return;
- }
-
- spin_lock(&driver_lock);
-
- list_del(&chip->list);
-
- spin_unlock(&driver_lock);
-
- dev_set_drvdata(dev, NULL);
- misc_deregister(&chip->vendor.miscdev);
- kfree(chip->vendor.miscdev.name);
-
- sysfs_remove_group(&dev->kobj, chip->vendor.attr_group);
- tpm_bios_log_teardown(chip->bios_dir);
-
- clear_bit(chip->dev_num, dev_mask);
-
- kfree(chip);
-
- put_device(dev);
-}
-EXPORT_SYMBOL_GPL(tpm_remove_hardware);
-
-static u8 savestate[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 10, /* blob length (in bytes) */
- 0, 0, 0, 152 /* TPM_ORD_SaveState */
-};
-
-/*
- * We are about to suspend. Save the TPM state
- * so that it can be restored.
- */
-int tpm_pm_suspend(struct device *dev, pm_message_t pm_state)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- tpm_transmit(chip, savestate, sizeof(savestate));
- return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_pm_suspend);
-
-/*
- * Resume from a power safe. The BIOS already restored
- * the TPM state.
- */
-int tpm_pm_resume(struct device *dev)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
-
- if (chip == NULL)
- return -ENODEV;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_pm_resume);
-
-/*
- * Called from tpm_<specific>.c probe function only for devices
- * the driver has determined it should claim. Prior to calling
- * this function the specific probe function has called pci_enable_device
- * upon errant exit from this function specific probe function should call
- * pci_disable_device
- */
-struct tpm_chip *tpm_register_hardware(struct device *dev, const struct
tpm_vendor_specific
- *entry)
-{
-#define DEVNAME_SIZE 7
-
- char *devname;
- struct tpm_chip *chip;
-
- /* Driver specific per-device data */
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
- if (chip == NULL)
- return NULL;
-
- init_MUTEX(&chip->buffer_mutex);
- init_MUTEX(&chip->tpm_mutex);
- INIT_LIST_HEAD(&chip->list);
-
- INIT_WORK(&chip->work, timeout_work, chip);
-
- init_timer(&chip->user_read_timer);
- chip->user_read_timer.function = user_reader_timeout;
- chip->user_read_timer.data = (unsigned long) chip;
-
- memcpy(&chip->vendor, entry, sizeof(struct tpm_vendor_specific));
-
- chip->dev_num = find_first_zero_bit(dev_mask, TPM_NUM_DEVICES);
-
- if (chip->dev_num >= TPM_NUM_DEVICES) {
- dev_err(dev, "No available tpm device numbers\n");
- kfree(chip);
- return NULL;
- } else if (chip->dev_num == 0)
- chip->vendor.miscdev.minor = TPM_MINOR;
- else
- chip->vendor.miscdev.minor = MISC_DYNAMIC_MINOR;
-
- set_bit(chip->dev_num, dev_mask);
-
- devname = kmalloc(DEVNAME_SIZE, GFP_KERNEL);
- scnprintf(devname, DEVNAME_SIZE, "%s%d", "tpm", chip->dev_num);
- chip->vendor.miscdev.name = devname;
-
- chip->vendor.miscdev.dev = dev;
- chip->dev = get_device(dev);
-
- if (misc_register(&chip->vendor.miscdev)) {
- dev_err(chip->dev,
- "unable to misc_register %s, minor %d\n",
- chip->vendor.miscdev.name,
- chip->vendor.miscdev.minor);
- put_device(dev);
- clear_bit(chip->dev_num, dev_mask);
- kfree(chip);
- kfree(devname);
- return NULL;
- }
-
- spin_lock(&driver_lock);
-
- dev_set_drvdata(dev, chip);
-
- list_add(&chip->list, &tpm_chip_list);
-
- spin_unlock(&driver_lock);
-
- sysfs_create_group(&dev->kobj, chip->vendor.attr_group);
-
- chip->bios_dir = tpm_bios_log_setup(devname);
-
- return chip;
-}
-EXPORT_SYMBOL_GPL(tpm_register_hardware);
-
-MODULE_AUTHOR("Leendert van Doorn (leendert@xxxxxxxxxxxxxx)");
-MODULE_DESCRIPTION("TPM Driver");
-MODULE_VERSION("2.0");
-MODULE_LICENSE("GPL");
diff -r 296d7aa451a3 -r f9c079fca143 linux-2.6-xen-sparse/drivers/char/tpm/tpm.h
--- a/linux-2.6-xen-sparse/drivers/char/tpm/tpm.h Thu Feb 15 14:20:05
2007 +0000
+++ b/linux-2.6-xen-sparse/drivers/char/tpm/tpm.h Thu Feb 15 14:21:50
2007 +0000
@@ -25,13 +25,6 @@
#include <linux/miscdevice.h>
#include <linux/platform_device.h>
#include <linux/io.h>
-
-#ifdef CONFIG_XEN
-enum tpm_bufsize {
- TPM_MIN_BUFFERSIZE = 2048,
- TPM_MAX_BUFFERSIZE = 64 * 1024,
-};
-#endif
enum tpm_timeout {
TPM_TIMEOUT = 5, /* msecs */
@@ -68,9 +61,6 @@ struct tpm_vendor_specific {
const u8 req_complete_mask;
const u8 req_complete_val;
const u8 req_canceled;
-#ifdef CONFIG_XEN
- u32 buffersize;
-#endif
void __iomem *iobase; /* ioremapped address */
unsigned long base; /* TPM base address */
@@ -104,9 +94,6 @@ struct tpm_chip {
/* Data passed to and from the tpm via the read/write calls */
u8 *data_buffer;
atomic_t data_pending;
-#ifdef CONFIG_XEN
- atomic_t data_position;
-#endif
struct semaphore buffer_mutex;
struct timer_list user_read_timer; /* user needs to claim result */
@@ -138,17 +125,6 @@ static inline void tpm_write_index(int b
}
#ifdef CONFIG_XEN
-static inline u32 get_chip_buffersize(struct tpm_chip *chip)
-{
- u32 size = chip->vendor.buffersize;
- if (size > TPM_MAX_BUFFERSIZE) {
- return TPM_MAX_BUFFERSIZE;
- } else if (size < TPM_MIN_BUFFERSIZE) {
- return TPM_MIN_BUFFERSIZE;
- }
- return size;
-}
-
static inline void *chip_get_private(const struct tpm_chip *chip)
{
return chip->priv;
diff -r 296d7aa451a3 -r f9c079fca143
linux-2.6-xen-sparse/drivers/char/tpm/tpm_vtpm.c
--- a/linux-2.6-xen-sparse/drivers/char/tpm/tpm_vtpm.c Thu Feb 15 14:20:05
2007 +0000
+++ b/linux-2.6-xen-sparse/drivers/char/tpm/tpm_vtpm.c Thu Feb 15 14:21:50
2007 +0000
@@ -519,9 +519,6 @@ struct tpm_chip *init_vtpm(struct device
vtpms->tpmvd = tvd;
vtpms->tpm_private = tp;
- if (tvd)
- tpm_vtpm.buffersize = tvd->max_tx_size;
-
chip = tpm_register_hardware(dev, &tpm_vtpm);
if (!chip) {
rc = -ENODEV;
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