coreboot-gerrit May 2020

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Change in coreboot[master]: security: Move TS_{START,END}_TPMINIT out of vboot
by Paul Menzel (Code Review) 09 Jun '23

09 Jun '23

Paul Menzel has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38057 ) Change subject: security: Move TS_{START,END}_TPMINIT out of vboot ...................................................................... security: Move TS_{START,END}_TPMINIT out of vboot These are generic timestamps, and not vboot specific. Therefore, move them to `tpm_setup()`, so that these timestamps are added in all cases. (vboot timestamps should be namespaced with VBOOT anyway.) Change-Id: Ib1048f7b7a5903d186cdd750822b4bc8ea7dc665 Signed-off-by: Paul Menzel <pmenzel(a)molgen.mpg.de> --- M src/security/tpm/tspi/tspi.c M src/security/vboot/vboot_logic.c 2 files changed, 5 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/38057/1 diff --git a/src/security/tpm/tspi/tspi.c b/src/security/tpm/tspi/tspi.c index 5fcf92d..9ca9f98 100644 --- a/src/security/tpm/tspi/tspi.c +++ b/src/security/tpm/tspi/tspi.c @@ -19,6 +19,7 @@ #include <console/console.h> #include <security/tpm/tspi.h> #include <security/tpm/tss.h> +#include <timestamp.h> #if CONFIG(VBOOT) #include <vb2_api.h> #include <vb2_sha.h> @@ -127,6 +128,8 @@ { uint32_t result; + timestamp_add_now(TS_START_TPMINIT); + result = tlcl_lib_init(); if (result != TPM_SUCCESS) { printk(BIOS_ERR, "TPM: Can't initialize.\n"); @@ -174,6 +177,8 @@ result = tpm1_invoke_state_machine(); #endif + timestamp_add_now(TS_END_TPMINIT); + return tpm_setup_epilogue(result); } diff --git a/src/security/vboot/vboot_logic.c b/src/security/vboot/vboot_logic.c index 1d17a17..c65ea3a 100644 --- a/src/security/vboot/vboot_logic.c +++ b/src/security/vboot/vboot_logic.c @@ -320,10 +320,8 @@ /* Read secdata from TPM. Initialize TPM if secdata not found. We don't * check the return value here because vb2api_fw_phase1 will catch * invalid secdata and tell us what to do (=reboot). */ - timestamp_add_now(TS_START_TPMINIT); if (vboot_setup_tpm(ctx) == TPM_SUCCESS) antirollback_read_space_firmware(ctx); - timestamp_add_now(TS_END_TPMINIT); /* Enable measured boot mode */ if (CONFIG(VBOOT_MEASURED_BOOT) && -- To view, visit https://review.coreboot.org/c/coreboot/+/38057 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Ib1048f7b7a5903d186cdd750822b4bc8ea7dc665 Gerrit-Change-Number: 38057 Gerrit-PatchSet: 1 Gerrit-Owner: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-MessageType: newchange

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Change in coreboot[master]: [TEST-ONLY] mb/google/octopus/variants/phaser: for 5030 cpu
by Peichao Li (Code Review) 09 Jun '23

09 Jun '23

Peichao Li has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38453 ) Change subject: [TEST-ONLY] mb/google/octopus/variants/phaser: for 5030 cpu ...................................................................... [TEST-ONLY] mb/google/octopus/variants/phaser: for 5030 cpu test new thermal solution BUG=None TEST=None Signed-off-by: Peichao Wang <peichao.wang(a)bitland.corp-partner.google.com> Change-Id: I470642fe5a6aee6b37dddd748ee620c09289f327 --- M src/mainboard/google/octopus/variants/phaser/overridetree.cb 1 file changed, 3 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/53/38453/1 diff --git a/src/mainboard/google/octopus/variants/phaser/overridetree.cb b/src/mainboard/google/octopus/variants/phaser/overridetree.cb index 625c2a6..2bc84aa 100644 --- a/src/mainboard/google/octopus/variants/phaser/overridetree.cb +++ b/src/mainboard/google/octopus/variants/phaser/overridetree.cb @@ -54,6 +54,9 @@ #| I2C6 | Trackpad | #| I2C7 | Touchscreen | #+-------------------+---------------------------+ + + register "tcc_offset" = "15" + register "common_soc_config" = "{ .gspi[0] = { .speed_mhz = 1, -- To view, visit https://review.coreboot.org/c/coreboot/+/38453 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I470642fe5a6aee6b37dddd748ee620c09289f327 Gerrit-Change-Number: 38453 Gerrit-PatchSet: 1 Gerrit-Owner: Peichao Li <peichao.wang(a)bitland.corp-partner.google.com> Gerrit-MessageType: newchange

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Change in coreboot[master]: vc/amd/agesa/f16kb/Proc/CPU: Avoid out-of-bounds read
by Name of user not set (Code Review) 09 Jun '23

09 Jun '23

awokd(a)danwin1210.me has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38466 ) Change subject: vc/amd/agesa/f16kb/Proc/CPU: Avoid out-of-bounds read ...................................................................... vc/amd/agesa/f16kb/Proc/CPU: Avoid out-of-bounds read In an edge case where the cpuF16AddingMmioMap function is called with a fully populated MmioRange array, MmioPair could be incremented to its maximum value of 11, causing an out-of-bounds read in cpuF16MmioMap.c:228 with the comparison to MmioRange[MmioPair + i]. Add logic to avoid this case, and similar as i is incremented. Change-Id: I781bee51a57602f3d73f43ad0ad8466a01ef8736 Signed-off-by: Joe Moore <awokd(a)danwin1210.me> Found-by: Coverity CID 1376955 --- M src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/cpuF16MmioMap.c 1 file changed, 20 insertions(+), 13 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/66/38466/1 diff --git a/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/cpuF16MmioMap.c b/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/cpuF16MmioMap.c index 714f970..1023215 100644 --- a/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/cpuF16MmioMap.c +++ b/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/cpuF16MmioMap.c @@ -223,29 +223,36 @@ // | | // new base new limit + if (MmioPair >= (MMIO_REG_PAIR_NUM - 1)) { + IDS_HDT_CONSOLE (MAIN_FLOW, " [ERROR] Not enough MMIO register pairs to hold the request.\n"); + return AGESA_ERROR; + } MmioRange[MmioPair].Base = (MmioRange[MmioPair].Base <= NewMmioRange.Base) ? MmioRange[MmioPair].Base : NewMmioRange.Base; MmioRange[MmioPair].Modified = TRUE; - for (i = 1; NewMmioRange.Limit >= MmioRange[MmioPair + i].Base; i++) { - if ((NewMmioRange.Attribute.MmioPostedRange == MmioRange[MmioPair + i].Attribute.MmioPostedRange) && - (NewMmioRange.Attribute.MmioReadableRange == MmioRange[MmioPair + i].Attribute.MmioReadableRange) && - (NewMmioRange.Attribute.MmioWritableRange == MmioRange[MmioPair + i].Attribute.MmioWritableRange) && - (NewMmioRange.Attribute.MmioSecuredRange == MmioRange[MmioPair + i].Attribute.MmioSecuredRange)) { - MmioRange[MmioPair].Limit = MmioRange[MmioPair + i].Limit; - MmioRange[MmioPair + i].Base = 0; - MmioRange[MmioPair + i].Limit = F16_MMIO_ALIGN; - MmioRange[MmioPair + i].Attribute.MmioReadableRange = 0; - MmioRange[MmioPair + i].Attribute.MmioWritableRange = 0; - MmioRange[MmioPair + i].Modified = TRUE; + for (i = MmioPair + 1; i < (MMIO_REG_PAIR_NUM - 1); i++) { + if ((NewMmioRange.Attribute.MmioPostedRange == MmioRange[i].Attribute.MmioPostedRange) && + (NewMmioRange.Attribute.MmioReadableRange == MmioRange[i].Attribute.MmioReadableRange) && + (NewMmioRange.Attribute.MmioWritableRange == MmioRange[i].Attribute.MmioWritableRange) && + (NewMmioRange.Attribute.MmioSecuredRange == MmioRange[i].Attribute.MmioSecuredRange) && + (NewMmioRange.Limit >= MmioRange[i + 1].Base)) { + MmioRange[MmioPair].Limit = MmioRange[i].Limit; + MmioRange[i].Base = 0; + MmioRange[i].Limit = F16_MMIO_ALIGN; + MmioRange[i].Attribute.MmioReadableRange = 0; + MmioRange[i].Attribute.MmioWritableRange = 0; + MmioRange[i].Modified = TRUE; UnusedMmioPair++; - } else if (MmioRange[MmioPair + i].Attribute.MmioReadableRange != 0 || MmioRange[MmioPair + i].Attribute.MmioWritableRange != 0) { + } else if (MmioRange[i].Attribute.MmioReadableRange != 0 || MmioRange[i].Attribute.MmioWritableRange != 0) { // Overlapped MMIO regions with different attributes MmioRange[MmioPair].Limit = (MmioRange[MmioPair].Limit >= NewMmioRange.Limit) ? MmioRange[MmioPair].Limit : NewMmioRange.Limit; NewMmioIncluded = TRUE; Overlap = TRUE; break; + } else if (NewMmioRange.Limit < MmioRange[i + 1].Base) { + break; } } - MmioRange[MmioPair].Limit = (MmioRange[MmioPair + i - 1].Limit >= NewMmioRange.Limit) ? MmioRange[MmioPair + i - 1].Limit : NewMmioRange.Limit; + MmioRange[MmioPair].Limit = (MmioRange[i].Limit >= NewMmioRange.Limit) ? MmioRange[i].Limit : NewMmioRange.Limit; break; } else { // Overlapped MMIO regions with different attributes -- To view, visit https://review.coreboot.org/c/coreboot/+/38466 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I781bee51a57602f3d73f43ad0ad8466a01ef8736 Gerrit-Change-Number: 38466 Gerrit-PatchSet: 1 Gerrit-Owner: awokd(a)danwin1210.me Gerrit-MessageType: newchange

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Change in coreboot[master]: arch/x86/tables: Measure table creation times
by Paul Menzel (Code Review) 09 Jun '23

09 Jun '23

Paul Menzel has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38316 ) Change subject: arch/x86/tables: Measure table creation times ...................................................................... arch/x86/tables: Measure table creation times Change-Id: I99382c5e10c4158a53aa30bd224f3d6bbfc3ecdf Signed-off-by: Paul Menzel <paulepanter(a)users.sourceforge.net> --- M src/arch/x86/tables.c 1 file changed, 22 insertions(+), 4 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/16/38316/1 diff --git a/src/arch/x86/tables.c b/src/arch/x86/tables.c index 8ecf86d..002728e 100644 --- a/src/arch/x86/tables.c +++ b/src/arch/x86/tables.c @@ -23,6 +23,7 @@ #include <string.h> #include <cbmem.h> #include <smbios.h> +#include <timer.h> static unsigned long write_pirq_table(unsigned long rom_table_end) { @@ -198,20 +199,37 @@ { size_t sz; unsigned long rom_table_end = 0xf0000; + struct stopwatch sw; /* This table must be between 0x0f0000 and 0x100000 */ - if (CONFIG(GENERATE_PIRQ_TABLE)) + if (CONFIG(GENERATE_PIRQ_TABLE)) { + stopwatch_init_msecs(&sw); rom_table_end = write_pirq_table(rom_table_end); + printk(BIOS_SPEW, "write_pirq_table() took %lu ms\n", + stopwatch_duration_msecs(&sw)); + } /* The smp table must be in 0-1K, 639K-640K, or 960K-1M */ - if (CONFIG(GENERATE_MP_TABLE)) + if (CONFIG(GENERATE_MP_TABLE)) { + stopwatch_init_msecs(&sw); rom_table_end = write_mptable(rom_table_end); + printk(BIOS_SPEW, "write_mptable() took %lu ms\n", + stopwatch_duration_msecs(&sw)); + } - if (CONFIG(HAVE_ACPI_TABLES)) + if (CONFIG(HAVE_ACPI_TABLES)) { + stopwatch_init_msecs(&sw); rom_table_end = write_acpi_table(rom_table_end); + printk(BIOS_SPEW, "write_acpi_table() took %lu ms\n", + stopwatch_duration_msecs(&sw)); + } - if (CONFIG(GENERATE_SMBIOS_TABLES)) + if (CONFIG(GENERATE_SMBIOS_TABLES)) { + stopwatch_init_msecs(&sw); rom_table_end = write_smbios_table(rom_table_end); + printk(BIOS_SPEW, "write_smbios_table() took %lu ms\n", + stopwatch_duration_msecs(&sw)); + } sz = write_coreboot_forwarding_table(forwarding_table, coreboot_table); -- To view, visit https://review.coreboot.org/c/coreboot/+/38316 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I99382c5e10c4158a53aa30bd224f3d6bbfc3ecdf Gerrit-Change-Number: 38316 Gerrit-PatchSet: 1 Gerrit-Owner: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-MessageType: newchange

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Change in coreboot[master]: soc/intel/skylake: Clean up systemagent.asl code
by Subrata Banik (Code Review) 09 Jun '23

09 Jun '23

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38478 ) Change subject: soc/intel/skylake: Clean up systemagent.asl code ...................................................................... soc/intel/skylake: Clean up systemagent.asl code This patch performs below operations 1. Remove unused ICH memory reference. 2. Update 64 bit SA DRAM bit fields as per SKL EDS. 3. Move pci_irqs.asl from SA to PCH as applicable. 4. Add _SEG/_UID name variables. 5. Reserve TPM area as applicable. TEST=Build and boot EVE and Soraka to OS. Change-Id: I44ce4866a83df40c38b69b07a71db3b81bca3981 Signed-off-by: Subrata Banik <subrata.banik(a)intel.com> --- M src/soc/intel/skylake/acpi/pch.asl M src/soc/intel/skylake/acpi/systemagent.asl 2 files changed, 18 insertions(+), 25 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/78/38478/1 diff --git a/src/soc/intel/skylake/acpi/pch.asl b/src/soc/intel/skylake/acpi/pch.asl index 0aba2e7..ce1619a 100644 --- a/src/soc/intel/skylake/acpi/pch.asl +++ b/src/soc/intel/skylake/acpi/pch.asl @@ -23,6 +23,9 @@ #include <soc/gpe.h> #include <soc/pcr_ids.h> +/* PCI IRQ assignment */ +#include "pci_irqs.asl" + /* GPIO Controller */ #include "gpio.asl" diff --git a/src/soc/intel/skylake/acpi/systemagent.asl b/src/soc/intel/skylake/acpi/systemagent.asl index 89380aa..34922ac 100644 --- a/src/soc/intel/skylake/acpi/systemagent.asl +++ b/src/soc/intel/skylake/acpi/systemagent.asl @@ -17,8 +17,10 @@ #include <soc/iomap.h> -Name (_HID, EISAID ("PNP0A08")) /* PCIe */ -Name (_CID, EISAID ("PNP0A03")) /* PCI */ +Name (_HID, EisaId ("PNP0A08") /* PCI Express Bus */) // _HID: Hardware ID +Name (_CID, EisaId ("PNP0A03") /* PCI Bus */) // _CID: Compatible ID +Name (_SEG, Zero) // _SEG: PCI Segment +Name (_UID, Zero) // _UID: Unique ID Device (MCHC) { @@ -30,26 +32,27 @@ Offset(0x40), /* EPBAR (0:0:0:40) */ EPEN, 1, /* Enable */ , 11, - EPBR, 20, /* EPBAR [31:12] */ + EPBR, 27, /* EPBAR [38:12] */ Offset(0x48), /* MCHBAR (0:0:0:48) */ MHEN, 1, /* Enable */ , 14, - MHBR, 17, /* MCHBAR [31:15] */ + MHBR, 24, /* MCHBAR [38:15] */ Offset(0x60), /* PCIEXBAR (0:0:0:60) */ PXEN, 1, /* Enable */ PXSZ, 2, /* PCI Express Size */ - , 23, - PXBR, 6, /* PCI Express BAR [31:26] */ + , 25, + PXBR, 11, /* PCI Express BAR [38:28] */ Offset(0x68), /* DMIBAR (0:0:0:68) */ DIEN, 1, /* Enable */ , 11, - DIBR, 20, /* DMIBAR [31:12] */ + DIBR, 27, /* DMIBAR [38:12] */ Offset (0x70), /* ME Base Address */ MEBA, 64, + Offset (0xa0), TOM, 64, /* Top of Used Memory */ TUUD, 64, /* Top of Upper Used Memory */ @@ -182,12 +185,12 @@ 0x00000000, PCH_PRESERVED_BASE_ADDRESS, 0xfe7fffff, 0x00000000, PCH_PRESERVED_BASE_SIZE) - /* TPM Area (0xfed40000-0xfed44fff) */ + /* TPM Area (0xfed40000-0xfed47fff) */ DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite, - 0x00000000, 0xfed40000, 0xfed44fff, 0x00000000, - 0x00005000) -}) + 0x00000000, 0xfed40000, 0xfed47fff, 0x00000000, + 0x00008000) + }) /* Find PCI resource area in MCRS */ CreateDwordField (MCRS, PM01._MIN, PMIN) @@ -244,7 +247,7 @@ /* Get PCIe BAR */ Method (GPCB, 0, Serialized) { - ShiftLeft (\_SB.PCI0.MCHC.PXBR, 26, Local0) + ShiftLeft (\_SB.PCI0.MCHC.PXBR, 28, Local0) Return (Local0) } @@ -292,19 +295,9 @@ */ Memory32Fixed (ReadWrite, 0, 0, PCIX) - /* MISC ICH TTT base address reserved for the - * TxT module use. - */ - Memory32Fixed (ReadWrite, 0xFED20000, 0x20000) - /* VTD engine memory range. */ Memory32Fixed (ReadOnly, VTD_BASE_ADDRESS, VTD_BASE_SIZE) - /* MISC ICH. Check if the hard code meets the - * real configuration. - */ - Memory32Fixed (ReadWrite, 0xFED45000, 0x4B000, TPMM) - /* FLASH range */ Memory32Fixed (ReadOnly, 0, CONFIG_ROM_SIZE, FIOH) @@ -336,6 +329,3 @@ Return (BUF0) } } - -/* PCI IRQ assignment */ -#include "pci_irqs.asl" -- To view, visit https://review.coreboot.org/c/coreboot/+/38478 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I44ce4866a83df40c38b69b07a71db3b81bca3981 Gerrit-Change-Number: 38478 Gerrit-PatchSet: 1 Gerrit-Owner: Subrata Banik <subrata.banik(a)intel.com> Gerrit-MessageType: newchange

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Change in coreboot[master]: mb/intel/jasperlake_rvp: Add proper Kconfig for chrome ec support
by Maulik V Vaghela (Code Review) 09 Jun '23

09 Jun '23

Maulik V Vaghela has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38517 ) Change subject: mb/intel/jasperlake_rvp: Add proper Kconfig for chrome ec support ...................................................................... mb/intel/jasperlake_rvp: Add proper Kconfig for chrome ec support Jasperlake rvp external ec board can use chromeos-ec, so adding config option to select chromeos ec and TPM (when board also supports TPM2) BUG=NONE BRANCH=None TEST=Jasperlake RVP and Jasperlake ext ec board builds fine Change-Id: I0ca74f0beb7b31ba4b1915ef21773a4a1b4327b3 Signed-off-by: Maulik V Vaghela <maulik.v.vaghela(a)intel.com> --- M src/mainboard/intel/jasperlake_rvp/Kconfig M src/mainboard/intel/jasperlake_rvp/chromeos.c 2 files changed, 26 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/17/38517/1 diff --git a/src/mainboard/intel/jasperlake_rvp/Kconfig b/src/mainboard/intel/jasperlake_rvp/Kconfig index 97b038e..5660e52 100644 --- a/src/mainboard/intel/jasperlake_rvp/Kconfig +++ b/src/mainboard/intel/jasperlake_rvp/Kconfig @@ -31,6 +31,28 @@ string default "Intel_jasperlake_rvp" +config JSL_EXTERNAL_EC + bool "JSL External EC" + default y if BOARD_INTEL_JASPERLAKE_RVP_EXT_EC + default n + select EC_GOOGLE_CHROMEEC + select EC_GOOGLE_CHROMEEC_LPC + select EC_GOOGLE_CHROMEEC_SWITCHES + +config JSL_INTEL_EC + bool "Internal EC" + default y if BOARD_INTEL_JASPERLAKE_RVP + default n + select MAINBOARD_USES_IFD_EC_REGION + select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC + +config JSL_HAS_TPM + bool "JSL TPM2 support" + default y if BOARD_INTEL_JASPERLAKE_RVP_EXT_EC + default n + select MAINBOARD_HAS_SPI_TPM_CR50 + select MAINBOARD_HAS_TPM2 + config MAX_CPUS int default 8 @@ -44,8 +66,8 @@ default 512 config VBOOT - select VBOOT_LID_SWITCH - select VBOOT_MOCK_SECDATA + select VBOOT_LID_SWITCH if !EC_GOOGLE_CHROMEEC_SWITCHES + select VBOOT_MOCK_SECDATA if !JSL_HAS_TPM config UART_FOR_CONSOLE int diff --git a/src/mainboard/intel/jasperlake_rvp/chromeos.c b/src/mainboard/intel/jasperlake_rvp/chromeos.c index 372f6ce..4b589f0 100644 --- a/src/mainboard/intel/jasperlake_rvp/chromeos.c +++ b/src/mainboard/intel/jasperlake_rvp/chromeos.c @@ -30,6 +30,7 @@ lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios)); } +#if !CONFIG(EC_GOOGLE_CHROMEEC_SWITCHES) int get_lid_switch(void) { /* Lid always open */ @@ -40,6 +41,7 @@ { return 0; } +#endif int get_write_protect_state(void) { -- To view, visit https://review.coreboot.org/c/coreboot/+/38517 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I0ca74f0beb7b31ba4b1915ef21773a4a1b4327b3 Gerrit-Change-Number: 38517 Gerrit-PatchSet: 1 Gerrit-Owner: Maulik V Vaghela <maulik.v.vaghela(a)intel.com> Gerrit-MessageType: newchange

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Change in ...coreboot[master]: Documentation: Update soc/intel/apollolake
by Patrick Rudolph (Code Review) 09 Jun '23

09 Jun '23

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/33740 Change subject: Documentation: Update soc/intel/apollolake ...................................................................... Documentation: Update soc/intel/apollolake Explaing LBPs and how to disable dual partition mode. Change-Id: I0b609f802d96aa90d0c1479ffeccf3aaaa70a85d Signed-off-by: Patrick Rudolph <patrick.rudolph(a)9elements.com> --- M Documentation/soc/intel/apollolake/flash_layout.dia M Documentation/soc/intel/apollolake/flash_layout.svg A Documentation/soc/intel/apollolake/flash_layout2.dia A Documentation/soc/intel/apollolake/flash_layout2.svg M Documentation/soc/intel/apollolake/index.md 5 files changed, 272 insertions(+), 27 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/40/33740/1 diff --git a/Documentation/soc/intel/apollolake/flash_layout.dia b/Documentation/soc/intel/apollolake/flash_layout.dia index 4ea5440..a329620 100644 --- a/Documentation/soc/intel/apollolake/flash_layout.dia +++ b/Documentation/soc/intel/apollolake/flash_layout.dia Binary files differ diff --git a/Documentation/soc/intel/apollolake/flash_layout.svg b/Documentation/soc/intel/apollolake/flash_layout.svg index 9322875..07b3a58 100644 --- a/Documentation/soc/intel/apollolake/flash_layout.svg +++ b/Documentation/soc/intel/apollolake/flash_layout.svg @@ -1,6 +1,6 @@ <?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/PR-SVG-20010719/DTD/svg10.dtd"> -<svg width="38cm" height="18cm" viewBox="118 98 744 344" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> +<svg width="38cm" height="19cm" viewBox="118 61 744 380" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g> <rect style="fill: #ffffff" x="620" y="100" width="180" height="60"/> <rect style="fill: none; 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fill-opacity:0; stroke-width: 3; stroke: #000000" x="440.696" y="240.49" width="71.1194" height="60"/> + </g> + <text font-size="12.8" style="fill: #000000;text-anchor:middle;font-family:sans-serif;font-style:normal;font-weight:700" x="606.052" y="274.425"> + <tspan x="606.052" y="274.425">OBB</tspan> + </text> + <text font-size="12.8" style="fill: #000000;text-anchor:middle;font-family:sans-serif;font-style:normal;font-weight:700" x="476.254" y="274.915"> + <tspan x="476.254" y="274.915">IFWI</tspan> + </text> + <text font-size="12.8" style="fill: #000000;text-anchor:start;font-family:sans-serif;font-style:normal;font-weight:normal" x="493.642" y="231.092"> + <tspan x="493.642" y="231.092">Logical Boot Partition 2</tspan> + </text> + <line style="fill: none; fill-opacity:0; stroke-width: 2; stroke-dasharray: 4; stroke: #000000" x1="439.69" y1="207.594" x2="440.696" y2="240.49"/> + <g> + <rect style="fill: #d8e5e5" x="668.7" y="241.9" width="28.5491" height="54.6579"/> + <rect style="fill: none; fill-opacity:0; stroke-width: 3; stroke: #000000" x="668.7" y="241.9" width="28.5491" height="54.6579"/> + </g> +</svg> diff --git a/Documentation/soc/intel/apollolake/index.md b/Documentation/soc/intel/apollolake/index.md index d4a5ee5..3ff0027 100644 --- a/Documentation/soc/intel/apollolake/index.md +++ b/Documentation/soc/intel/apollolake/index.md @@ -1,9 +1,7 @@ # Apollolake -## SPI flash layout -![][apl_flash_layout] - -With Apollolake Intel invented another flash layout for x86 firmware called IFWI (Intel FirmWare Image). +With Apollolake Intel invented another flash layout for x86 firmware called +IFWI (Intel FirmWare Image). Usually on x86 platforms the bootblock is stored at the end of the bios region and the Intel ME / TXE has its own IFD region. On Apollolake both have been @@ -12,6 +10,47 @@ The IFWI region can be manipulated by `ifwitool`. -[apl_flash_layout]: flash_layout.svg +## SPI flash layout +IFD regions: +* The "ME" region isn't used on production boards +* The "BIOS" region contains one or two logical boot partitions (LBP) + * The IFD controls if one or two LBP are active + * Each LBP has it's own IFWI and OBB + * The last 256 KiB of the "BIOS" region are BIOS_UNUSABLE +* The "device extension" region is used by TXE as secure filesystem + +### SPI layout with single LBP + +When configured for single LBP mode, the LBP uses the whole "BIOS" region's +flash size. + +![][apl_flash_layout] + +### SPI layout with dual LBP + +When configured for dual LBP mode, each LBP uses exactly half of the "BIOS" +region's flash size. + +![][apl_flash_layout2] + +### IFWI + +The IFWI contains the bootblock, while the OBB contains the CBFS and other +regions as specified in the FMAP. +The OBB spans the whole size from IFWI till the end of the LBP. + +**Note:** ifwitool doesn't care about LBP2! + +### Logical boot partitions + +Each LBP has their own IFWI and OBB. It allows failsafe firmware updates. + +**Note:** If configured in dual partition mode, the TXE will enter recovery +mode if LBP2 is missing. + +To disable dual partitioning mode, set bit3 in IFD at offset `0x1ff` to 1. + +[apl_flash_layout]: flash_layout.svg +[apl_flash_layout2]: flash_layout2.svg -- To view, visit https://review.coreboot.org/c/coreboot/+/33740 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I0b609f802d96aa90d0c1479ffeccf3aaaa70a85d Gerrit-Change-Number: 33740 Gerrit-PatchSet: 1 Gerrit-Owner: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-MessageType: newchange

8 36

Change in coreboot[master]: WIP: Add mmio_readonly_resource helper macro
by Furquan Shaikh (Code Review) 09 Jun '23

09 Jun '23

Furquan Shaikh has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38674 ) Change subject: WIP: Add mmio_readonly_resource helper macro ...................................................................... WIP: Add mmio_readonly_resource helper macro Change-Id: Ic362861e20fed7f33fd9b24d25ad727387aca101 Signed-off-by: Furquan Shaikh <furquan(a)google.com> --- M src/include/device/device.h 1 file changed, 3 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/74/38674/1 diff --git a/src/include/device/device.h b/src/include/device/device.h index 2d7400b..b6c3e6c 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -269,6 +269,9 @@ #define mmio_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE) +#define mmio_readonly_resource(dev, idx, basek, sizek) \ + fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_READONLY) + #define io_resource(dev, idx, base, size) \ fixed_io_resource(dev, idx, base, size) -- To view, visit https://review.coreboot.org/c/coreboot/+/38674 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Ic362861e20fed7f33fd9b24d25ad727387aca101 Gerrit-Change-Number: 38674 Gerrit-PatchSet: 1 Gerrit-Owner: Furquan Shaikh <furquan(a)google.com> Gerrit-MessageType: newchange

2 2

Change in coreboot[master]: mb/lenovo/x201: Kconfig option to disable Q50 ACPI Method
by Maccraft123 (Code Review) 09 Jun '23

09 Jun '23

Maccraft123 has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38681 ) Change subject: mb/lenovo/x201: Kconfig option to disable Q50 ACPI Method ...................................................................... mb/lenovo/x201: Kconfig option to disable Q50 ACPI Method Q50 Method can cause data loss in some circumstances, therefore I think there should be Kconfig option to disable it. EC triggers _Q50 when machine is docked and AC power supply is removed. If OS hasn't unmounted drive that is connected via USB or Ultrabay this behaviour causes data loss. Change-Id: I522ff7769267c88125397b7df75d313d92d5622f Signed-off-by: Maciej Matuszczyk <maccraft123mc(a)gmail.com> --- M src/mainboard/lenovo/x201/Kconfig 1 file changed, 9 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/81/38681/1 diff --git a/src/mainboard/lenovo/x201/Kconfig b/src/mainboard/lenovo/x201/Kconfig index a94d24e..3e83bdc 100644 --- a/src/mainboard/lenovo/x201/Kconfig +++ b/src/mainboard/lenovo/x201/Kconfig @@ -42,6 +42,15 @@ string default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT +config DISABLE_Q50 + bool "Disable _Q50 ACPI Method" + default n + help + This option disabled _Q50 Method that causes undock on removal of + AC power adapter. This behaviour can cause data loss by disconnecting + Ultrabay device without unmounting it first. + This option also disables the undock button on X200 Ultrabase. + config MAINBOARD_DIR string default "lenovo/x201" -- To view, visit https://review.coreboot.org/c/coreboot/+/38681 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I522ff7769267c88125397b7df75d313d92d5622f Gerrit-Change-Number: 38681 Gerrit-PatchSet: 1 Gerrit-Owner: Maccraft123 <maccraft123mc(a)gmail.com> Gerrit-MessageType: newchange

3 4

Change in ...coreboot[master]: util/smctool: A tool for reading Apple SMC keys
by Evgeny Zinoviev (Code Review) 09 Jun '23

09 Jun '23

Evgeny Zinoviev has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/33052 Change subject: util/smctool: A tool for reading Apple SMC keys ...................................................................... util/smctool: A tool for reading Apple SMC keys SMC is an embedded controller on Apple computers. With this tool you can read SMC keys. It supports various data types and can output result in various formats. Example how to get battery capacity level: smctool -k B0FC -t ui16 # returns Full Capacity of Battery 0 smctool -k B0RM -t ui16 # returns Remaining Capacity of Batery 0 So B0RM / B0FC * 100 = battery capacity in percents. Another example, reading current fan speed, which is returned as unsigned fixed point number: sudo ./smctool -k F0Ac -t fpe2 Change-Id: I6161203e52b7f7eaa1205de06e8241d7d40a7481 Signed-off-by: Evgeny Zinoviev <me(a)ch1p.io> --- A util/smctool/Makefile A util/smctool/description.md A util/smctool/smc.c A util/smctool/smc.h A util/smctool/smctool.c 5 files changed, 538 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/52/33052/1 diff --git a/util/smctool/Makefile b/util/smctool/Makefile new file mode 100644 index 0000000..ce7cca2 --- /dev/null +++ b/util/smctool/Makefile @@ -0,0 +1,38 @@ +## +## Makefile for smctool +## +## Copyright (C) 2019 Evgeny Zinoviev <me(a)ch1p.io> +## +## 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. +## +## This program is distributed in the hope that 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. +## + +CC = gcc +CFLAGS = -O2 -Wall -W +PROGRAM = smctool +INSTALL = /usr/bin/env install +PREFIX = /usr/local + +all: $(PROGRAM) + +$(PROGRAM): smc.o smctool.o + $(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) + +install: $(PROGRAM) + $(INSTALL) $(PROGRAM) $(PREFIX)/sbin + +clean: + rm -f *.o $(PROGRAM) + +distclean: clean + +%.o: %.c + $(CC) $(CFLAGS) -c $^ -I. -o $@ + +.PHONY: all install clean distclean diff --git a/util/smctool/description.md b/util/smctool/description.md new file mode 100644 index 0000000..37a2d2a --- /dev/null +++ b/util/smctool/description.md @@ -0,0 +1 @@ +Reads keys from Apple SMC. Supports various data types. `C` diff --git a/util/smctool/smc.c b/util/smctool/smc.c new file mode 100644 index 0000000..a875b2c --- /dev/null +++ b/util/smctool/smc.c @@ -0,0 +1,156 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Evgeny Zinoviev <me(a)ch1p.io> + * + * SMC interacting code is based on applesmc linux driver by: + * Copyright (C) 2007 Nicolas Boichat <nicolas(a)boichat.ch> + * Copyright (C) 2010 Henrik Rydberg <rydberg(a)euromail.se> + * + * 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. + * + * This program is distributed in the hope that 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. + */ + +#include <stdlib.h> +#include <sys/io.h> +#include <errno.h> +#include <stdio.h> +#include "smc.h" + +/* + * wait_read - Wait for a byte to appear on SMC port. Callers must + * hold applesmc_lock. + */ +int wait_read(void) +{ + uint8_t status; + int us; + for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) { + usleep(us); + status = inb(APPLESMC_CMD_PORT); + + /* read: wait for smc to settle */ + if (status & 0x01) + return 0; + } + + fprintf(stderr, "%s() fail: 0x%02x\n", __func__, status); + return -EIO; +} + +/* + * send_byte - Write to SMC port, retrying when necessary. Callers + * must hold applesmc_lock. + */ +int send_byte(uint8_t cmd, uint16_t port) +{ + uint8_t status; + int us; + + outb(cmd, port); + for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) { + usleep(us); + status = inb(APPLESMC_CMD_PORT); + /* write: wait for smc to settle */ + if (status & 0x02) + continue; + /* ready: cmd accepted, return */ + if (status & 0x04) + return 0; + /* timeout: give up */ + if (us << 1 == APPLESMC_MAX_WAIT) + break; + /* busy: long wait and resend */ + usleep(APPLESMC_RETRY_WAIT); + outb(cmd, port); + } + + fprintf(stderr, "%s(0x%02x, 0x%04x) fail: 0x%02x\n", + __func__, cmd, port, status); + return -EIO; +} + +int send_command(uint8_t cmd) +{ + return send_byte(cmd, APPLESMC_CMD_PORT); +} + +int send_argument(const char *key) +{ + int i; + + for (i = 0; i < 4; i++) + if (send_byte(key[i], APPLESMC_DATA_PORT)) + return -EIO; + return 0; +} + +int read_smc(uint8_t cmd, const char *key, uint8_t *buffer, uint8_t len) +{ + uint8_t status, data = 0; + int i; + + if (send_command(cmd) || send_argument(key)) { + fprintf(stderr, "%.4s: read arg fail\n", key); + return -EIO; + } + + /* This has no effect on newer (2012) SMCs */ + if (send_byte(len, APPLESMC_DATA_PORT)) { + fprintf(stderr, "%.4s: read len fail\n", key); + return -EIO; + } + + for (i = 0; i < len; i++) { + if (wait_read()) { + fprintf(stderr, "%.4s: read data[%d] fail\n", key, i); + return -EIO; + } + buffer[i] = inb(APPLESMC_DATA_PORT); + } + + /* Read the data port until bit0 is cleared */ + for (i = 0; i < 16; i++) { + usleep(APPLESMC_MIN_WAIT); + status = inb(APPLESMC_CMD_PORT); + if (!(status & 0x01)) + break; + data = inb(APPLESMC_DATA_PORT); + } + + if (i) + fprintf(stderr, "flushed %d bytes, last value is: %d\n", + i, data); + + return 0; +} + +int write_smc(uint8_t cmd, const char *key, const uint8_t *buffer, uint8_t len) +{ + int i; + + if (send_command(cmd) || send_argument(key)) { + fprintf(stderr, "%s: write arg fail\n", key); + return -EIO; + } + + if (send_byte(len, APPLESMC_DATA_PORT)) { + fprintf(stderr, "%.4s: write len fail\n", key); + return -EIO; + } + + for (i = 0; i < len; i++) { + if (send_byte(buffer[i], APPLESMC_DATA_PORT)) { + fprintf(stderr, "%s: write data fail\n", key); + return -EIO; + } + } + + return 0; +} diff --git a/util/smctool/smc.h b/util/smctool/smc.h new file mode 100644 index 0000000..dffd8db --- /dev/null +++ b/util/smctool/smc.h @@ -0,0 +1,45 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Evgeny Zinoviev <me(a)ch1p.io> + * + * 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. + * + * This program is distributed in the hope that 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. + */ + +#ifndef SMC_H +#define SMC_H + +#include <stdbool.h> +#include <unistd.h> +#include <stdint.h> + +/* data port used by Apple SMC */ +#define APPLESMC_DATA_PORT 0x300 +/* command/status port used by Apple SMC */ +#define APPLESMC_CMD_PORT 0x304 + +#define APPLESMC_MAX_DATA_LENGTH 32 + +/* wait up to 128 ms for a status change. */ +#define APPLESMC_MIN_WAIT 0x0010 +#define APPLESMC_RETRY_WAIT 0x0100 +#define APPLESMC_MAX_WAIT 0x20000 + +#define APPLESMC_READ_CMD 0x10 +#define APPLESMC_WRITE_CMD 0x11 + +int wait_read(void); +int send_byte(uint8_t cmd, uint16_t port); +int send_command(uint8_t cmd); +int send_argument(const char *key); +int read_smc(uint8_t cmd, const char *key, uint8_t *buffer, uint8_t len); +int write_smc(uint8_t cmd, const char *key, const uint8_t *buffer, uint8_t len); + +#endif /* SMC_H */ diff --git a/util/smctool/smctool.c b/util/smctool/smctool.c new file mode 100644 index 0000000..fda7904 --- /dev/null +++ b/util/smctool/smctool.c @@ -0,0 +1,298 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Evgeny Zinoviev <me(a)ch1p.io> + * + * 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. + * + * This program is distributed in the hope that 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. + */ + +#include <getopt.h> +#include <string.h> +#include <stdlib.h> +#include <assert.h> +#include <endian.h> +#include <sys/io.h> +#include <stdio.h> +#include <errno.h> +#include "smc.h" +#include "smctool.h" + +static bool fp_bits(char c, uint8_t *dest) +{ + if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')) { + *dest = strtol(&c, NULL, 16); + return true; + } + return false; +} + +static void print_bits(uint8_t len, uint8_t *ptr) +{ + for (int i = len - 1; i >= 0; i--) { + for (int j = 7; j >= 0; j--) + printf("%u", (ptr[i] >> j) & 1); + + if (i > 0) + printf(" "); + } +} + +static void print_usage(const char *name) +{ + printf("usage: %s <options>\n", name); + printf("\n" + "Options:\n" + " -h, --help: print this help\n" + " -k, --key <name>: key name\n" + " -t, --type <type>: data type, see below\n" + " --output-hex\n" + " --output-bin\n" + "\n" + "Supported data types:\n" + " ui8, ui16, ui32, si8, si16, flag, fpXY, spXY\n" + "\n" + " fp and sp are unsigned and signed fixed point\n" + " data types respectively.\n" + "\n" + " The X in fp and sp data types is integer bits count\n" + " and Y is fraction bits count.\n" + "\n" + " For example,\n" + " fpe2 means 14 integer bits, 2 fraction bits,\n" + " sp78 means 7 integer bits, 8 fraction bits\n" + " (and one sign bit).\n" + "\n"); +} + + +enum output_format {dec, hex, bin}; + +enum smctype {none, ui8, ui16, ui32, si8, si16, flag, fp, sp}; +struct { + enum smctype type; + uint8_t len; + char *str; + char *decfmt; + char *hexfmt; +} types[] = { + {ui8, 1, "ui8", "%u", "0x%02x"}, + {ui16, 2, "ui16", "%u", "0x%04x"}, + {ui32, 4, "ui32", "%u", "0x%08x"}, + {si8, 1, "si8", "%d", "0x%02x"}, + {si16, 2, "si16", "%d", "0x%04x"}, + {flag, 1, "flag", "%u", "0x%01x"}, +}; + +int main(int argc, char *argv[]) +{ + bool show_help = false; + int opt, option_index = 0; + char name[KEYBUFSIZE+1] = {0}; + char typebuf[KEYBUFSIZE+1] = {0}; + uint8_t fp_int_bits = 0, fp_fraction_bits = 0; + + enum output_format of = dec; + char *ofmt = NULL; + char fmtbuf[32]; + + enum smctype type = none; + uint8_t len; + + struct option long_options[] = { + {"help", 0, 0, 'h'}, + {"key", 1, 0, 'k'}, + {"type", 1, 0, 't'}, + {"output-hex", 0, 0, 1000}, + {"output-bin", 0, 0, 1001}, + {0, 0, 0, 0} + }; + + if (argv[1] == NULL) { + print_usage(argv[0]); + exit(0); + } + + while ((opt = getopt_long(argc, argv, "hk:t:", + long_options, &option_index)) != EOF) { + switch (opt) { + case 'h': + show_help = true; + break; + + case 'k': + snprintf(name, KEYBUFSIZE, "%s", optarg); + break; + + case 't': + snprintf(typebuf, KEYBUFSIZE, "%s", optarg); + break; + + case 1000: // output-hex + of = hex; + break; + + case 1001: // output-bin + of = bin; + break; + } + } + + if (optind < argc) { + fprintf(stderr, "Error: Extra parameter found.\n"); + print_usage(argv[0]); + exit(1); + } + + if (show_help) { + print_usage(argv[0]); + exit(0); + } + + /* Validate key name */ + if (strlen(name) != 4) { + fprintf(stderr, "Key name must be 4 characters long.\n"); + exit(1); + } + + /* Validate key type */ + if ((typebuf[0] == 'f' || typebuf[0] == 's') && typebuf[1] == 'p') { + if (!fp_bits(typebuf[2], &fp_int_bits) + || !fp_bits(typebuf[3], &fp_fraction_bits)) { + fprintf(stderr, "Invalid fixed point data type.\n"); + exit(1); + } + if (typebuf[0] == 'f' && fp_int_bits + fp_fraction_bits != 16) { + fprintf(stderr, + "Invalid unsigned fixed point data type.\n"); + exit(1); + } + if (typebuf[0] == 's' && fp_int_bits + fp_fraction_bits != 15) { + fprintf(stderr, + "Invalid signed fixed point data type.\n"); + exit(1); + } + type = typebuf[0] == 'f' ? fp : sp; + len = 2; + ofmt = "%d.%u"; + } + + if (type == none) { + for (unsigned int i = 0; i < ARRAY_SIZE(types); i++) { + if (strcmp(typebuf, types[i].str)) + continue; + + type = types[i].type; + len = types[i].len; + if (of == dec) + ofmt = types[i].decfmt; + else if (of == hex) + ofmt = types[i].hexfmt; + break; + } + } + + if (type == none) { + fprintf(stderr, "Key type \"%s\" is not known.\n", typebuf); + exit(1); + } + + /* Check permissions */ + if (geteuid() != 0) { + fprintf(stderr, "You must be root.\n"); + exit(1); + } + + /* Open SMC port */ + if (ioperm(APPLESMC_DATA_PORT, 0x10, 1)) { + fprintf(stderr, "ioperm: %s\n", strerror(errno)); + exit(1); + } + + /* Read key from SMC */ + int retval; + uint32_t buf = 0; + + retval = read_smc(APPLESMC_READ_CMD, name, (uint8_t *)&buf, len); + assert(retval == 0); + + /* Handle returned value according to the requested type */ + buf = be32toh(buf); + + int32_t fp_int = 0; + uint16_t fp_fraction = 0; + bool fp_sign = false; + + switch (type) { + case flag: + buf = (buf >> 24) & 1; + break; + + case ui8: + buf = (buf >> 24) & 0xff; + break; + + case si8: + buf = (buf >> 24) & 0xff; + if (of == dec) + buf = (int8_t)buf; + break; + + case ui16: + buf = (buf >> 16) & 0xffff; + break; + + case si16: + buf = (buf >> 16) & 0xffff; + if (of == dec) + buf = (int16_t)buf; + break; + + case fp: + buf = (buf >> 16) & 0xffff; + fp_int = buf >> fp_fraction_bits; + fp_fraction = buf & (0xffff >> fp_int_bits); + break; + + case sp: + buf = (buf >> 16) & 0xffff; + fp_sign = ((buf >> 15) & 1) == 1; + + buf &= ~(1 << 15); + + fp_int = buf >> fp_fraction_bits; + fp_fraction = buf & (0xffff >> fp_int_bits); + + if (fp_sign) + fp_int *= -1; + break; + + case ui32: + case none: // to avoid gcc warning + break; + } + + /* Output the result */ + if (of != bin) { + strcpy(fmtbuf, "%s = "); + strcat(fmtbuf, ofmt); + strcat(fmtbuf, "\n"); + + if (type == fp || type == sp) + printf(fmtbuf, name, fp_int, fp_fraction); + else + printf(fmtbuf, name, buf); + } else { + printf("%s = ", name); + print_bits(len, (uint8_t *)&buf); + printf("\n"); + } + + return 0; +} -- To view, visit https://review.coreboot.org/c/coreboot/+/33052 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I6161203e52b7f7eaa1205de06e8241d7d40a7481 Gerrit-Change-Number: 33052 Gerrit-PatchSet: 1 Gerrit-Owner: Evgeny Zinoviev <me(a)ch1p.com> Gerrit-MessageType: newchange

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