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NEX-16819 loader UEFI support
Includes work by Toomas Soome <tsoome@me.com>
Upstream commits:
    loader: pxe receive cleanup
    9475 libefi: Do not return only if ReceiveFilter
    installboot: should support efi system partition
    8931 boot1.efi: scan all display modes rather than
    loader: spinconsole updates
    loader: gfx experiment to try GOP Blt() function.
    sha1 build test
    loader: add sha1 hash calculation
    common/sha1: update for loader build
    loader: biosdisk rework
    uts: 32-bit kernel FB needs mapping in low memory
    uts: add diag-device
    uts: boot console mirror with diag-device
    uts: enable very early console on ttya
    kmdb: add diag-device as input/output device
    uts: test VGA memory exclusion from mapping
    uts: clear boot mapping and protect boot pages test
    uts: add dboot map debug printf
    uts: need to release FB pages in release_bootstrap()
    uts: add screenmap ioctl
    uts: update sys/queue.h
    loader: add illumos uts/common to include path
    loader: tem/gfx font cleanup
    loader: vbe checks
    uts: gfx_private set KD_TEXT when KD_RESETTEXT is
    uts: gfx 8-bit update
    loader: gfx 8-bit fix
    loader: always set media size from partition.
    uts: MB2 support for 32-bit kernel
    loader: x86 should have tem 80x25
    uts: x86 should have tem 80x25
    uts: font update
    loader: font update
    uts: tem attributes
    loader: tem.c comment added
    uts: use font module
    loader: add font module
    loader: build rules for new font setup
    uts: gfx_private update for new font structure
    uts: early boot update for new font structure
    uts: font update
    uts: font build rules update for new fonts
    uts: tem update to new font structure
    loader: module.c needs to include tem_impl.h
    uts: gfx_private 8x16 font rework
    uts: make font_lookup public
    loader: font rework
    uts: font rework
    9259 libefi: efi_alloc_and_read should check for PMBR
    uts: tem utf-8 support
    loader: implement tem utf-8 support
    loader: tem should be able to display UTF-8
    7784 uts: console input should support utf-8
    7796 uts: ldterm default to utf-8
    uts: do not reset serial console
    uts: set up colors even if tem is not console
    uts: add type for early boot properties
    uts: gfx_private experiment with drm and vga
    uts: gfx_private should use setmode drm callback.
    uts: identify FB types and set up gfx_private based
    loader: replace gop and vesa with framebuffer
    uts: boot needs simple tem to support mdb
    uts: boot_keyboard should emit esc sequences for
    uts: gfx_private FB showuld be written by line
    kmdb: set terminal window size
    uts: gfx_private needs to keep track of early boot FB
    pnglite: move pnglite to usr/src/common
    loader: gfx_fb
    ficl-sys: add gfx primitives
    loader: add illumos.png logo
    ficl: add fb-putimage
    loader: add png support
    loader: add alpha blending for gfx_fb
    loader: use term-drawrect for menu frame
    ficl: add simple gfx words
    uts: provide fb_info via fbgattr dev_specific array.
    uts: gfx_private add alpha blending
    uts: update sys/ascii.h
    uts: tem OSC support (incomplete)
    uts: implement env module support and use data from
    uts: tem get colors from early boot data
    loader: use crc32 from libstand (libz)
    loader: optimize for size
    loader: pass tem info to the environment
    loader: import tem for loader console
    loader: UEFI loader needs to set ISADIR based on
    loader: need UEFI32 support
    8918 loader.efi: add vesa edid support
    uts: tem_safe_pix_clear_prom_output() should only
    uts: tem_safe_pix_clear_entire_screen() should use
    uts: tem_safe_check_first_time() should query cursor
    uts: tem implement cls callback & visual_io v4
    uts: gfx_vgatext use block cursor for vgatext
    uts: gfx_private implement cls callback & visual_io
    uts: gfx_private bitmap framebuffer implementation
    uts: early start frame buffer console support
    uts: font functions should check the input char
    uts: font rendering should support 16/24/32bit depths
    uts: use smallest font as fallback default.
    uts: update terminal dimensions based on selected
    7834 uts: vgatext should use gfx_private
    uts: add spacing property to 8859-1.bdf
    terminfo: add underline for sun-color
    terminfo: sun-color has 16 colors
    uts: add font load callback type
    loader: do not repeat int13 calls with error 0x20 and
    8905 loader: add skein/edonr support
    8904 common/crypto: make skein and edonr loader
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Sanjay Nadkarni <sanjay.nadkarni@nexenta.com>
Reviewed by: Evan Layton <evan.layton@nexenta.com>
Revert "NEX-16819 loader UEFI support"
This reverts commit ec06b9fc617b99234e538bf2e7e4d02a24993e0c.
Reverting due to failures in the zfs-tests and the sharefs-tests
NEX-16819 loader UEFI support
Includes work by Toomas Soome <tsoome@me.com>
Upstream commits:
    loader: pxe receive cleanup
    9475 libefi: Do not return only if ReceiveFilter
    installboot: should support efi system partition
    8931 boot1.efi: scan all display modes rather than
    loader: spinconsole updates
    loader: gfx experiment to try GOP Blt() function.
    sha1 build test
    loader: add sha1 hash calculation
    common/sha1: update for loader build
    loader: biosdisk rework
    uts: 32-bit kernel FB needs mapping in low memory
    uts: add diag-device
    uts: boot console mirror with diag-device
    uts: enable very early console on ttya
    kmdb: add diag-device as input/output device
    uts: test VGA memory exclusion from mapping
    uts: clear boot mapping and protect boot pages test
    uts: add dboot map debug printf
    uts: need to release FB pages in release_bootstrap()
    uts: add screenmap ioctl
    uts: update sys/queue.h
    loader: add illumos uts/common to include path
    loader: tem/gfx font cleanup
    loader: vbe checks
    uts: gfx_private set KD_TEXT when KD_RESETTEXT is
    uts: gfx 8-bit update
    loader: gfx 8-bit fix
    loader: always set media size from partition.
    uts: MB2 support for 32-bit kernel
    loader: x86 should have tem 80x25
    uts: x86 should have tem 80x25
    uts: font update
    loader: font update
    uts: tem attributes
    loader: tem.c comment added
    uts: use font module
    loader: add font module
    loader: build rules for new font setup
    uts: gfx_private update for new font structure
    uts: early boot update for new font structure
    uts: font update
    uts: font build rules update for new fonts
    uts: tem update to new font structure
    loader: module.c needs to include tem_impl.h
    uts: gfx_private 8x16 font rework
    uts: make font_lookup public
    loader: font rework
    uts: font rework
    libefi: efi_alloc_and_read should check for PMBR
    uts: tem utf-8 support
    loader: implement tem utf-8 support
    loader: tem should be able to display UTF-8
    7784 uts: console input should support utf-8
    7796 uts: ldterm default to utf-8
    uts: do not reset serial console
    uts: set up colors even if tem is not console
    uts: add type for early boot properties
    uts: gfx_private experiment with drm and vga
    uts: gfx_private should use setmode drm callback.
    uts: identify FB types and set up gfx_private based
    loader: replace gop and vesa with framebuffer
    uts: boot needs simple tem to support mdb
    uts: boot_keyboard should emit esc sequences for
    uts: gfx_private FB showuld be written by line
    kmdb: set terminal window size
    uts: gfx_private needs to keep track of early boot FB
    pnglite: move pnglite to usr/src/common
    loader: gfx_fb
    ficl-sys: add gfx primitives
    loader: add illumos.png logo
    ficl: add fb-putimage
    loader: add png support
    loader: add alpha blending for gfx_fb
    loader: use term-drawrect for menu frame
    ficl: add simple gfx words
    uts: provide fb_info via fbgattr dev_specific array.
    uts: gfx_private add alpha blending
    uts: update sys/ascii.h
    uts: tem OSC support (incomplete)
    uts: implement env module support and use data from
    uts: tem get colors from early boot data
    loader: use crc32 from libstand (libz)
    loader: optimize for size
    loader: pass tem info to the environment
    loader: import tem for loader console
    loader: UEFI loader needs to set ISADIR based on
    loader: need UEFI32 support
    8918 loader.efi: add vesa edid support
    uts: tem_safe_pix_clear_prom_output() should only
    uts: tem_safe_pix_clear_entire_screen() should use
    uts: tem_safe_check_first_time() should query cursor
    uts: tem implement cls callback & visual_io v4
    uts: gfx_vgatext use block cursor for vgatext
    uts: gfx_private implement cls callback & visual_io
    uts: gfx_private bitmap framebuffer implementation
    uts: early start frame buffer console support
    uts: font functions should check the input char
    uts: font rendering should support 16/24/32bit depths
    uts: use smallest font as fallback default.
    uts: update terminal dimensions based on selected
    7834 uts: vgatext should use gfx_private
    uts: add spacing property to 8859-1.bdf
    terminfo: add underline for sun-color
    terminfo: sun-color has 16 colors
    uts: add font load callback type
    loader: do not repeat int13 calls with error 0x20 and
    8905 loader: add skein/edonr support
    8904 common/crypto: make skein and edonr loader
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Sanjay Nadkarni <sanjay.nadkarni@nexenta.com>
Reviewed by: Evan Layton <evan.layton@nexenta.com>
        
*** 103,112 ****
--- 103,114 ----
  
  #include "blkptr.c"
  
  #include "fletcher.c"
  #include "sha256.c"
+ #include "skein_zfs.c"
+ #include "edonr_zfs.c"
  
  static zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS] = {
          {{NULL, NULL}, NULL, NULL, 0, "inherit"},
          {{NULL, NULL}, NULL, NULL, 0, "on"},
          {{zio_checksum_off,     zio_checksum_off}, NULL, NULL, 0, "off"},
*** 129,143 ****
              0, "noparity"},
          {{zio_checksum_SHA512_native,   zio_checksum_SHA512_byteswap},
              NULL, NULL, ZCHECKSUM_FLAG_METADATA | ZCHECKSUM_FLAG_DEDUP |
              ZCHECKSUM_FLAG_NOPWRITE, "SHA512"},
          /* no skein and edonr for now */
!         {{NULL, NULL}, NULL, NULL, ZCHECKSUM_FLAG_METADATA |
!             ZCHECKSUM_FLAG_DEDUP | ZCHECKSUM_FLAG_SALTED |
!             ZCHECKSUM_FLAG_NOPWRITE, "skein"},
!         {{NULL, NULL}, NULL, NULL, ZCHECKSUM_FLAG_METADATA |
!             ZCHECKSUM_FLAG_SALTED | ZCHECKSUM_FLAG_NOPWRITE, "edonr"},
  };
  
  /*
   * Common signature for all zio compress/decompress functions.
   */
--- 131,148 ----
              0, "noparity"},
          {{zio_checksum_SHA512_native,   zio_checksum_SHA512_byteswap},
              NULL, NULL, ZCHECKSUM_FLAG_METADATA | ZCHECKSUM_FLAG_DEDUP |
              ZCHECKSUM_FLAG_NOPWRITE, "SHA512"},
          /* no skein and edonr for now */
!         {{zio_checksum_skein_native, zio_checksum_skein_byteswap},
!             zio_checksum_skein_tmpl_init, zio_checksum_skein_tmpl_free,
!             ZCHECKSUM_FLAG_METADATA | ZCHECKSUM_FLAG_DEDUP |
!             ZCHECKSUM_FLAG_SALTED | ZCHECKSUM_FLAG_NOPWRITE, "skein"},
!         {{zio_checksum_edonr_native, zio_checksum_edonr_byteswap},
!             zio_checksum_edonr_tmpl_init, zio_checksum_edonr_tmpl_free,
!             ZCHECKSUM_FLAG_METADATA | ZCHECKSUM_FLAG_SALTED |
!             ZCHECKSUM_FLAG_NOPWRITE, "edonr"},
  };
  
  /*
   * Common signature for all zio compress/decompress functions.
   */
*** 226,262 ****
  /*
   * Calls the template init function of a checksum which supports context
   * templates and installs the template into the spa_t.
   */
  static void
! zio_checksum_template_init(enum zio_checksum checksum, const spa_t *spa)
  {
          zio_checksum_info_t *ci = &zio_checksum_table[checksum];
  
          if (ci->ci_tmpl_init == NULL)
                  return;
! #if 0   /* for now we dont have anything here */
          if (spa->spa_cksum_tmpls[checksum] != NULL)
                  return;
  
-         VERIFY(ci->ci_tmpl_free != NULL);
-         mutex_enter(&spa->spa_cksum_tmpls_lock);
          if (spa->spa_cksum_tmpls[checksum] == NULL) {
                  spa->spa_cksum_tmpls[checksum] =
                      ci->ci_tmpl_init(&spa->spa_cksum_salt);
-                 VERIFY(spa->spa_cksum_tmpls[checksum] != NULL);
          }
-         mutex_exit(&spa->spa_cksum_tmpls_lock);
- #endif
  }
  
  static int
! zio_checksum_verify(const blkptr_t *bp, void *data)
  {
          uint64_t size;
          unsigned int checksum;
          zio_checksum_info_t *ci;
          zio_cksum_t actual_cksum, expected_cksum, verifier;
          int byteswap;
  
          checksum = BP_GET_CHECKSUM(bp);
          size = BP_GET_PSIZE(bp);
--- 231,282 ----
  /*
   * Calls the template init function of a checksum which supports context
   * templates and installs the template into the spa_t.
   */
  static void
! zio_checksum_template_init(enum zio_checksum checksum, spa_t *spa)
  {
          zio_checksum_info_t *ci = &zio_checksum_table[checksum];
  
          if (ci->ci_tmpl_init == NULL)
                  return;
! 
          if (spa->spa_cksum_tmpls[checksum] != NULL)
                  return;
  
          if (spa->spa_cksum_tmpls[checksum] == NULL) {
                  spa->spa_cksum_tmpls[checksum] =
                      ci->ci_tmpl_init(&spa->spa_cksum_salt);
          }
  }
  
+ /*
+  * Called by a spa_t that's about to be deallocated. This steps through
+  * all of the checksum context templates and deallocates any that were
+  * initialized using the algorithm-specific template init function.
+  */
+ void
+ zio_checksum_templates_free(spa_t *spa)
+ {
+         for (enum zio_checksum checksum = 0;
+             checksum < ZIO_CHECKSUM_FUNCTIONS; checksum++) {
+                 if (spa->spa_cksum_tmpls[checksum] != NULL) {
+                         zio_checksum_info_t *ci = &zio_checksum_table[checksum];
+ 
+                         ci->ci_tmpl_free(spa->spa_cksum_tmpls[checksum]);
+                         spa->spa_cksum_tmpls[checksum] = NULL;
+                 }
+         }
+ }
+ 
  static int
! zio_checksum_verify(const spa_t *spa, const blkptr_t *bp, void *data)
  {
          uint64_t size;
          unsigned int checksum;
          zio_checksum_info_t *ci;
+         void *ctx = NULL;
          zio_cksum_t actual_cksum, expected_cksum, verifier;
          int byteswap;
  
          checksum = BP_GET_CHECKSUM(bp);
          size = BP_GET_PSIZE(bp);
*** 265,275 ****
                  return (EINVAL);
          ci = &zio_checksum_table[checksum];
          if (ci->ci_func[0] == NULL || ci->ci_func[1] == NULL)
                  return (EINVAL);
  
!         zio_checksum_template_init(checksum, NULL);
          if (ci->ci_flags & ZCHECKSUM_FLAG_EMBEDDED) {
                  zio_eck_t *eck;
  
                  ASSERT(checksum == ZIO_CHECKSUM_GANG_HEADER ||
                      checksum == ZIO_CHECKSUM_LABEL);
--- 285,299 ----
                  return (EINVAL);
          ci = &zio_checksum_table[checksum];
          if (ci->ci_func[0] == NULL || ci->ci_func[1] == NULL)
                  return (EINVAL);
  
!         if (spa != NULL) {
!                 zio_checksum_template_init(checksum, (spa_t *) spa);
!                 ctx = spa->spa_cksum_tmpls[checksum];
!         }
! 
          if (ci->ci_flags & ZCHECKSUM_FLAG_EMBEDDED) {
                  zio_eck_t *eck;
  
                  ASSERT(checksum == ZIO_CHECKSUM_GANG_HEADER ||
                      checksum == ZIO_CHECKSUM_LABEL);
*** 289,311 ****
                  if (byteswap)
                          byteswap_uint64_array(&verifier, sizeof (zio_cksum_t));
  
                  expected_cksum = eck->zec_cksum;
                  eck->zec_cksum = verifier;
!                 ci->ci_func[byteswap](data, size, NULL, &actual_cksum);
                  eck->zec_cksum = expected_cksum;
  
                  if (byteswap)
                          byteswap_uint64_array(&expected_cksum,
                              sizeof (zio_cksum_t));
          } else {
                  expected_cksum = bp->blk_cksum;
!                 ci->ci_func[0](data, size, NULL, &actual_cksum);
          }
  
          if (!ZIO_CHECKSUM_EQUAL(actual_cksum, expected_cksum)) {
!                 /*printf("ZFS: read checksum failed\n");*/
                  return (EIO);
          }
  
          return (0);
  }
--- 313,335 ----
                  if (byteswap)
                          byteswap_uint64_array(&verifier, sizeof (zio_cksum_t));
  
                  expected_cksum = eck->zec_cksum;
                  eck->zec_cksum = verifier;
!                 ci->ci_func[byteswap](data, size, ctx, &actual_cksum);
                  eck->zec_cksum = expected_cksum;
  
                  if (byteswap)
                          byteswap_uint64_array(&expected_cksum,
                              sizeof (zio_cksum_t));
          } else {
                  expected_cksum = bp->blk_cksum;
!                 ci->ci_func[0](data, size, ctx, &actual_cksum);
          }
  
          if (!ZIO_CHECKSUM_EQUAL(actual_cksum, expected_cksum)) {
!                 /* printf("ZFS: read checksum %s failed\n", ci->ci_name); */
                  return (EIO);
          }
  
          return (0);
  }
*** 1311,1324 ****
  /*
   * We keep track of whether or not there were any injected errors, so that
   * any ereports we generate can note it.
   */
  static int
! raidz_checksum_verify(const blkptr_t *bp, void *data, uint64_t size)
  {
  
!         return (zio_checksum_verify(bp, data));
  }
  
  /*
   * Generate the parity from the data columns. If we tried and were able to
   * read the parity without error, verify that the generated parity matches the
--- 1335,1349 ----
  /*
   * We keep track of whether or not there were any injected errors, so that
   * any ereports we generate can note it.
   */
  static int
! raidz_checksum_verify(const spa_t *spa, const blkptr_t *bp, void *data,
!     uint64_t size)
  {
  
!         return (zio_checksum_verify(spa, bp, data));
  }
  
  /*
   * Generate the parity from the data columns. If we tried and were able to
   * read the parity without error, verify that the generated parity matches the
*** 1363,1374 ****
   * triple-parity RAID-Z the reconstruction procedure is the same if column 4
   * is targeted as invalid as if columns 1 and 4 are targeted since in both
   * cases we'd only use parity information in column 0.
   */
  static int
! vdev_raidz_combrec(raidz_map_t *rm, const blkptr_t *bp, void *data,
!     off_t offset, uint64_t bytes, int total_errors, int data_errors)
  {
          raidz_col_t *rc;
          void *orig[VDEV_RAIDZ_MAXPARITY];
          int tstore[VDEV_RAIDZ_MAXPARITY + 2];
          int *tgts = &tstore[1];
--- 1388,1399 ----
   * triple-parity RAID-Z the reconstruction procedure is the same if column 4
   * is targeted as invalid as if columns 1 and 4 are targeted since in both
   * cases we'd only use parity information in column 0.
   */
  static int
! vdev_raidz_combrec(const spa_t *spa, raidz_map_t *rm, const blkptr_t *bp,
!     void *data, off_t offset, uint64_t bytes, int total_errors, int data_errors)
  {
          raidz_col_t *rc;
          void *orig[VDEV_RAIDZ_MAXPARITY];
          int tstore[VDEV_RAIDZ_MAXPARITY + 2];
          int *tgts = &tstore[1];
*** 1443,1453 ****
                          /*
                           * Attempt a reconstruction and exit the outer loop on
                           * success.
                           */
                          code = vdev_raidz_reconstruct(rm, tgts, n);
!                         if (raidz_checksum_verify(bp, data, bytes) == 0) {
                                  for (i = 0; i < n; i++) {
                                          c = tgts[i];
                                          rc = &rm->rm_col[c];
                                          ASSERT(rc->rc_error == 0);
                                          rc->rc_error = ECKSUM;
--- 1468,1478 ----
                          /*
                           * Attempt a reconstruction and exit the outer loop on
                           * success.
                           */
                          code = vdev_raidz_reconstruct(rm, tgts, n);
!                         if (raidz_checksum_verify(spa, bp, data, bytes) == 0) {
                                  for (i = 0; i < n; i++) {
                                          c = tgts[i];
                                          rc = &rm->rm_col[c];
                                          ASSERT(rc->rc_error == 0);
                                          rc->rc_error = ECKSUM;
*** 1614,1624 ****
           * has a valid checksum. Naturally, this case applies in the absence of
           * any errors.
           */
          if (total_errors <= rm->rm_firstdatacol - parity_untried) {
                  if (data_errors == 0) {
!                         if (raidz_checksum_verify(bp, data, bytes) == 0) {
                                  /*
                                   * If we read parity information (unnecessarily
                                   * as it happens since no reconstruction was
                                   * needed) regenerate and verify the parity.
                                   * We also regenerate parity when resilvering
--- 1639,1649 ----
           * has a valid checksum. Naturally, this case applies in the absence of
           * any errors.
           */
          if (total_errors <= rm->rm_firstdatacol - parity_untried) {
                  if (data_errors == 0) {
!                         if (raidz_checksum_verify(vd->spa, bp, data, bytes) == 0) {
                                  /*
                                   * If we read parity information (unnecessarily
                                   * as it happens since no reconstruction was
                                   * needed) regenerate and verify the parity.
                                   * We also regenerate parity when resilvering
*** 1659,1669 ****
  
                          ASSERT(rm->rm_firstdatacol >= n);
  
                          code = vdev_raidz_reconstruct(rm, tgts, n);
  
!                         if (raidz_checksum_verify(bp, data, bytes) == 0) {
                                  /*
                                   * If we read more parity disks than were used
                                   * for reconstruction, confirm that the other
                                   * parity disks produced correct data. This
                                   * routine is suboptimal in that it regenerates
--- 1684,1694 ----
  
                          ASSERT(rm->rm_firstdatacol >= n);
  
                          code = vdev_raidz_reconstruct(rm, tgts, n);
  
!                         if (raidz_checksum_verify(vd->spa, bp, data, bytes) == 0) {
                                  /*
                                   * If we read more parity disks than were used
                                   * for reconstruction, confirm that the other
                                   * parity disks produced correct data. This
                                   * routine is suboptimal in that it regenerates
*** 1733,1743 ****
           * we're cooked.
           */
          if (total_errors > rm->rm_firstdatacol) {
                  error = EIO;
          } else if (total_errors < rm->rm_firstdatacol &&
!             (code = vdev_raidz_combrec(rm, bp, data, offset, bytes,
               total_errors, data_errors)) != 0) {
                  /*
                   * If we didn't use all the available parity for the
                   * combinatorial reconstruction, verify that the remaining
                   * parity is correct.
--- 1758,1768 ----
           * we're cooked.
           */
          if (total_errors > rm->rm_firstdatacol) {
                  error = EIO;
          } else if (total_errors < rm->rm_firstdatacol &&
!             (code = vdev_raidz_combrec(vd->spa, rm, bp, data, offset, bytes,
               total_errors, data_errors)) != 0) {
                  /*
                   * If we didn't use all the available parity for the
                   * combinatorial reconstruction, verify that the remaining
                   * parity is correct.