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https://github.com/CTCaer/hekate
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[PKG1] Add kernel patching
Add Disable Svc Verification and Debug mode. Can be enabled via the hekate .ini https://gist.github.com/roblabla/440f3ceaa0b2d3ca530c2a43fe258420
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Kostas Missos
parent
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3 changed files with 123 additions and 18 deletions
46
README.md
46
README.md
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@ -4,13 +4,49 @@
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Nintendo Switch bootloader, firmware patcher, and more.
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## ipl config
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The ipl can be configured via 'hekate_ipl.ini' (if it is present on the SD card). Each ini section represents a boot entry, except for the special section 'config' that controls the global configuration.
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Possible key/value combinations:
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### Possible key/value combinations:
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- warmboot={SD path}
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- secmon={SD path}
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- kernel={SD path}
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- kip1={SD path}
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| Config option | Description |
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| ------------------ | ---------------------------------------------------------- |
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| warmboot={SD path} | Replaces the warmboot binary |
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| secmon={SD path} | Replaces the security monitor binary |
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| kernel={SD path} | Replaces the kernel binary |
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| kip1={SD path} | Replaces/Adds kernel initial process. Multiple can be set. |
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| fullsvcperm=1 | Disables SVC verification |
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| debugmode=1 | Enables Debug mode |
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```
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hekate (C) 2018 naehrwert, st4rk.
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Thanks to: derrek, nedwill, plutoo, shuffle2, smea, thexyz, yellows8.
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Greetings to: fincs, hexkyz, SciresM, Shiny Quagsire, WinterMute.
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Open source and free packages used:
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- FatFs R0.13a, Copyright (C) 2017, ChaN
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- bcl-1.2.0, Copyright (C) 2003-2006, Marcus Geelnard
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___
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.-' `'.
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/ \
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| ;
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| | ___.--,
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_.._ |0) = (0) | _.---'`__.-( (_.
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__.--'`_.. '.__.\ '--. \_.-' ,.--'` `""`
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( ,.--'` ',__ /./; ;, '.__.'` __
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_`) ) .---.__.' / | |\ \__..--"" """--.,_
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`---' .'.''-._.-'`_./ /\ '. \ _.--''````'''--._`-.__.'
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| | .' _.-' | | \ \ '. `----`
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\ \/ .' \ \ '. '-._)
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\/ / \ \ `=.__`'-.
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/ /\ `) ) / / `"".`\
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, _.-'.'\ \ / / ( ( / /
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`--'` ) ) .-'.' '.'. | (
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(/` ( (` ) ) '-; [switchbrew]
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```
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51
ipl/hos.c
51
ipl/hos.c
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@ -190,6 +190,9 @@ typedef struct _launch_ctxt_t
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void *kernel;
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u32 kernel_size;
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link_t kip1_list;
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u8 *svcperm;
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u8 *debugmode;
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} launch_ctxt_t;
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typedef struct _merge_kip_t
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@ -321,6 +324,26 @@ static int _config_kip1(launch_ctxt_t *ctxt, const char *value)
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return 1;
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}
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static int _config_svcperm(launch_ctxt_t *ctxt, const char *value)
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{
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if (*(u8 *)value == '1')
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{
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DPRINTF("Disabled SVC verification\n");
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ctxt->svcperm = malloc(1);
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}
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return 1;
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}
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static int _config_debugmode(launch_ctxt_t *ctxt, const char *value)
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{
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if (*(u8 *)value == '1')
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{
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DPRINTF("Enabled Debug mode\n");
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ctxt->debugmode = malloc(1);
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}
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}
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typedef struct _cfg_handler_t
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{
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const char *key;
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@ -332,6 +355,8 @@ static const cfg_handler_t _config_handlers[] = {
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{ "secmon", _config_secmon },
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{ "kernel", _config_kernel },
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{ "kip1", _config_kip1 },
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{ "fullsvcperm", _config_svcperm },
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{ "debugmode", _config_debugmode },
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{ NULL, NULL },
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};
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@ -384,12 +409,18 @@ int hos_launch(ini_sec_t *cfg)
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{
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//Else we patch it to allow for an unsigned package2.
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patch_t *secmon_patchset = ctxt.pkg1_id->secmon_patchset;
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//In case a kernel patch option is set. Allows to disable Svc Verififcation or/and enable Debug mode
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patch_t *kernel_patchset = ctxt.pkg1_id->kernel_patchset;
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if (secmon_patchset != NULL) {
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for (u32 i = 0; secmon_patchset[i].off != 0xFFFFFFFF; i++)
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*(vu32 *)(ctxt.pkg1_id->secmon_base + secmon_patchset[i].off) = secmon_patchset[i].val;
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if (secmon_patchset != NULL || (kernel_patchset != NULL && (ctxt.svcperm || ctxt.debugmode))) {
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if (secmon_patchset != NULL)
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{
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gfx_printf(&gfx_con, "%kPatching Security Monitor%k\n", 0xFF00BAFF, 0xFFCCCCCC);
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for (u32 i = 0; secmon_patchset[i].off != 0xFFFFFFFF; i++)
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*(vu32 *)(ctxt.pkg1_id->secmon_base + secmon_patchset[i].off) = secmon_patchset[i].val;
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}
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DPRINTF("loaded warmboot.bin and secmon\n");
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gfx_printf(&gfx_con, "Loaded warmboot.bin and secmon\n");
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//Read package2.
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if (!_read_emmc_pkg2(&ctxt))
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@ -409,9 +440,19 @@ int hos_launch(ini_sec_t *cfg)
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{
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ctxt.kernel = pkg2_hdr->data;
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ctxt.kernel_size = pkg2_hdr->sec_size[PKG2_SEC_KERNEL];
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if (kernel_patchset != NULL && (ctxt.svcperm || ctxt.debugmode))
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{
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gfx_printf(&gfx_con, "%kPatching kernel%k\n", 0xFF00BAFF, 0xFFCCCCCC);
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if (ctxt.svcperm && kernel_patchset[0].off != 0xFFFFFFFF)
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*(vu32 *)(ctxt.kernel + kernel_patchset[0].off) = kernel_patchset[0].val;
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if (ctxt.debugmode && kernel_patchset[1].off != 0xFFFFFFFF)
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*(vu32 *)(ctxt.kernel + kernel_patchset[1].off) = kernel_patchset[1].val;
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}
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}
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//Merge extra KIP1s into loaded ones.
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gfx_printf(&gfx_con, "%kPatching kernel initial processes%k\n", 0xFF00BAFF, 0xFFCCCCCC);
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LIST_FOREACH_ENTRY(merge_kip_t, mki, &ctxt.kip1_list, link)
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pkg2_merge_kip(&kip1_info, (pkg2_kip1_t *)mki->kip1);
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@ -428,6 +469,8 @@ int hos_launch(ini_sec_t *cfg)
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}
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}
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gfx_printf(&gfx_con, "\n%kBooting...%k\n", 0xFF00FF96, 0xFFCCCCCC);
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se_aes_key_clear(0x8);
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se_aes_key_clear(0xB);
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44
ipl/pkg1.c
44
ipl/pkg1.c
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@ -48,15 +48,15 @@ PATCHSET_DEF(_secmon_3_patchset,
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{ 0xAC8 + 0xADC, _NOP() } //Sections SHA2.
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);
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PATCHSET_DEF(_secmon_5_patchset,
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PATCHSET_DEF(_secmon_4_patchset,
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//Patch package2 decryption and signature/hash checks.
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{ 0x1218 + 0x6E68, _NOP() }, //Header signature.
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{ 0x1218 + 0x6E74, _NOP() }, //Version.
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{ 0x1218 + 0x6FE4, _NOP() }, //Sections SHA2.
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{ 0x1218 + 0x2DC, _NOP() } //Unknown.
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{ 0x1218 + 0x2DC, _NOP() } //Unknown.
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);
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PATCHSET_DEF(_secmon_6_patchset,
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PATCHSET_DEF(_secmon_5_patchset,
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//Patch package2 decryption and signature/hash checks.
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{ 0x12b0 + 0x4d0, _NOP() },
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{ 0x12b0 + 0x4dc, _NOP() },
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@ -65,6 +65,32 @@ PATCHSET_DEF(_secmon_6_patchset,
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//{ 0x12b0 + 0xa18 , _NOP() } // BootConfig Retail Check
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);
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// Include kernel patches here, so we can utilize pkg1 id
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PATCHSET_DEF(_kernel_1_patchset,
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{ 0x3764C, _NOP() }, // Disable SVC verifications
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{ 0x44074, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_2_patchset,
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{ 0x54834, _NOP() }, // Disable SVC verifications
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{ 0x6086C, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_3_patchset,
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{ 0x3BD24, _NOP() }, // Disable SVC verifications
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{ 0x483FC, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_4_patchset,
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{ 0x41EB4, _NOP() }, // Disable SVC verifications
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{ 0x4EBFC, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_5_patchset,
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{ 0xFFFFFFFF, 0xFFFFFFFF }, // TODO: MISSING
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{ 0x5513C, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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/*
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* package1.1 header: <wb, ldr, sm>
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* package1.1 layout:
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@ -77,12 +103,12 @@ PATCHSET_DEF(_secmon_6_patchset,
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*/
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static const pkg1_id_t _pkg1_ids[] = {
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{ "20161121183008", 0, 0x1900, 0x3FE0, { 2, 1, 0 }, 0x40014020, _secmon_1_patchset }, //1.0.0
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{ "20170210155124", 0, 0x1900, 0x3FE0, { 0, 1, 2 }, 0x4002D000, _secmon_2_patchset }, //2.0.0
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{ "20170519101410", 1, 0x1A00, 0x3FE0, { 0, 1, 2 }, 0x4002D000, _secmon_3_patchset }, //3.0.0
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{ "20170710161758", 2, 0x1A00, 0x3FE0, { 0, 1, 2 }, 0x4002D000, _secmon_3_patchset }, //3.0.1
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{ "20170921172629", 3, 0x1800, 0x3FE0, { 1, 2, 0 }, 0x4002B000, _secmon_5_patchset }, //4.0.0
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{ "20180220163747", 4, 0x1900, 0x3FE0, { 1, 2, 0 }, 0x4002B000, _secmon_6_patchset }, //5.0.0
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{ "20161121183008", 0, 0x1900, 0x3FE0, { 2, 1, 0 }, 0x40014020, _secmon_1_patchset, _kernel_1_patchset }, //1.0.0
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{ "20170210155124", 0, 0x1900, 0x3FE0, { 0, 1, 2 }, 0x4002D000, _secmon_2_patchset, _kernel_2_patchset }, //2.0.0 - 2.3.0
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{ "20170519101410", 1, 0x1A00, 0x3FE0, { 0, 1, 2 }, 0x4002D000, _secmon_3_patchset, _kernel_3_patchset }, //3.0.0
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{ "20170710161758", 2, 0x1A00, 0x3FE0, { 0, 1, 2 }, 0x4002D000, _secmon_3_patchset, _kernel_3_patchset }, //3.0.1 - 3.0.2
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{ "20170921172629", 3, 0x1800, 0x3FE0, { 1, 2, 0 }, 0x4002B000, _secmon_4_patchset, _kernel_4_patchset }, //4.0.0 - 4.1.0
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{ "20180220163747", 4, 0x1900, 0x3FE0, { 1, 2, 0 }, 0x4002B000, _secmon_5_patchset, _kernel_5_patchset }, //5.0.0 - 5.0.2
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{ NULL, 0, 0, 0, 0 } //End.
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};
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