mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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ACPI: tools: Introduce utility for firmware updates/telemetry
Introduce a user space tool to make use of the interface exposed by Platform Firmware Runtime Update and Telemetry drivers. It can be used for firmware code injection, driver updates and to retrieve platform firmware telemetry data. Tested-by: Hongyu Ning <hongyu.ning@intel.com> Signed-off-by: Chen Yu <yu.c.chen@intel.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Chen Yu
Rafael J. Wysocki
parent
b0013e037a
commit
53e8558837
1
tools/power/acpi/.gitignore
vendored
1
tools/power/acpi/.gitignore
vendored
@ -2,4 +2,5 @@
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/acpidbg
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/acpidump
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/ec
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/pfrut
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/include/
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@ -9,18 +9,18 @@ include ../../scripts/Makefile.include
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.NOTPARALLEL:
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all: acpidbg acpidump ec
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clean: acpidbg_clean acpidump_clean ec_clean
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install: acpidbg_install acpidump_install ec_install
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uninstall: acpidbg_uninstall acpidump_uninstall ec_uninstall
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all: acpidbg acpidump ec pfrut
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clean: acpidbg_clean acpidump_clean ec_clean pfrut_clean
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install: acpidbg_install acpidump_install ec_install pfrut_install
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uninstall: acpidbg_uninstall acpidump_uninstall ec_uninstall pfrut_uninstall
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acpidbg acpidump ec: FORCE
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acpidbg acpidump ec pfrut: FORCE
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$(call descend,tools/$@,all)
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acpidbg_clean acpidump_clean ec_clean:
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acpidbg_clean acpidump_clean ec_clean pfrut_clean:
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$(call descend,tools/$(@:_clean=),clean)
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acpidbg_install acpidump_install ec_install:
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acpidbg_install acpidump_install ec_install pfrut_install:
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$(call descend,tools/$(@:_install=),install)
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acpidbg_uninstall acpidump_uninstall ec_uninstall:
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acpidbg_uninstall acpidump_uninstall ec_uninstall pfrut_uninstall:
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$(call descend,tools/$(@:_uninstall=),uninstall)
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.PHONY: FORCE
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@ -9,7 +9,7 @@ objdir := $(OUTPUT)tools/$(TOOL)/
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toolobjs := $(addprefix $(objdir),$(TOOL_OBJS))
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$(OUTPUT)$(TOOL): $(toolobjs) FORCE
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$(ECHO) " LD " $(subst $(OUTPUT),,$@)
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$(QUIET) $(LD) $(CFLAGS) $(LDFLAGS) $(toolobjs) -L$(OUTPUT) -o $@
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$(QUIET) $(LD) $(CFLAGS) $(toolobjs) $(LDFLAGS) -L$(OUTPUT) -o $@
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$(ECHO) " STRIP " $(subst $(OUTPUT),,$@)
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$(QUIET) $(STRIPCMD) $@
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137
tools/power/acpi/man/pfrut.8
Normal file
137
tools/power/acpi/man/pfrut.8
Normal file
@ -0,0 +1,137 @@
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.TH "PFRUT" "8" "October 2021" "pfrut 1.0" ""
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.hy
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.SH Name
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.PP
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pfrut \- Platform Firmware Runtime Update and Telemetry tool
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.SH SYNOPSIS
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.PP
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\f[B]pfrut\f[R] [\f[I]Options\f[R]]
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.SH DESCRIPTION
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.PP
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The PFRUT(Platform Firmware Runtime Update and Telemetry) kernel interface is designed
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to
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.PD 0
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.P
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.PD
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interact with the platform firmware interface defined in the
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.PD 0
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.P
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.PD
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Management Mode Firmware Runtime
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Update (https://uefi.org/sites/default/files/resources/Intel_MM_OS_Interface_Spec_Rev100.pdf)
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.PD 0
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.P
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.PD
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\f[B]pfrut\f[R] is the tool to interact with the kernel interface.
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.PD 0
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.P
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.PD
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.SH OPTIONS
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.TP
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.B \f[B]\-h\f[R], \f[B]\-\-help\f[R]
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Display helper information.
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.TP
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.B \f[B]\-l\f[R], \f[B]\-\-load\f[R]
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Load the capsule file into the system.
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To be more specific, the capsule file will be copied to the
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communication buffer.
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.TP
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.B \f[B]\-s\f[R], \f[B]\-\-stage\f[R]
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Stage the capsule image from communication buffer into Management Mode
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and perform authentication.
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.TP
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.B \f[B]\-a\f[R], \f[B]\-\-activate\f[R]
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Activate a previous staged capsule image.
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.TP
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.B \f[B]\-u\f[R], \f[B]\-\-update\f[R]
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Perform both stage and activation actions.
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.TP
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.B \f[B]\-q\f[R], \f[B]\-\-query\f[R]
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Query the update capability.
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.TP
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.B \f[B]\-d\f[R], \f[B]\-\-setrev\f[R]
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Set the revision ID of code injection/driver update.
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.TP
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.B \f[B]\-D\f[R], \f[B]\-\-setrevlog\f[R]
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Set the revision ID of telemetry.
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.TP
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.B \f[B]\-G\f[R], \f[B]\-\-getloginfo\f[R]
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Get telemetry log information and print it out.
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.TP
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.B \f[B]\-T\f[R], \f[B]\-\-type\f[R]
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Set the telemetry log data type.
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.TP
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.B \f[B]\-L\f[R], \f[B]\-\-level\f[R]
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Set the telemetry log level.
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.TP
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.B \f[B]\-R\f[R], \f[B]\-\-read\f[R]
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Read all the telemetry data and print it out.
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.SH EXAMPLES
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.PP
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\f[B]pfrut \-G\f[R]
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.PP
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log_level:4
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.PD 0
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.P
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.PD
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log_type:0
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.PD 0
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.P
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.PD
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log_revid:2
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.PD 0
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.P
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.PD
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max_data_size:65536
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.PD 0
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.P
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.PD
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chunk1_size:0
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.PD 0
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.P
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.PD
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chunk2_size:1401
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.PD 0
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.P
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.PD
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rollover_cnt:0
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.PD 0
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.P
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.PD
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reset_cnt:4
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.PP
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\f[B]pfru \-q\f[R]
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.PP
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code injection image type:794bf8b2\-6e7b\-454e\-885f\-3fb9bb185402
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.PD 0
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.P
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.PD
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fw_version:0
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.PD 0
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.P
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.PD
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code_rt_version:1
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.PD 0
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.P
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.PD
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driver update image type:0e5f0b14\-f849\-7945\-ad81\-bc7b6d2bb245
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.PD 0
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.P
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.PD
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drv_rt_version:0
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.PD 0
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.P
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.PD
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drv_svn:0
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.PD 0
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.P
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.PD
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platform id:39214663\-b1a8\-4eaa\-9024\-f2bb53ea4723
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.PD 0
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.P
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.PD
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oem id:a36db54f\-ea2a\-e14e\-b7c4\-b5780e51ba3d
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.PP
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\f[B]pfrut \-l yours.cap \-u \-T 1 \-L 4\f[R]
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.SH AUTHORS
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Chen Yu.
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23
tools/power/acpi/tools/pfrut/Makefile
Normal file
23
tools/power/acpi/tools/pfrut/Makefile
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@ -0,0 +1,23 @@
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# SPDX-License-Identifier: GPL-2.0+
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include ../../Makefile.config
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TOOL = pfrut
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EXTRA_INSTALL = install-man
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EXTRA_UNINSTALL = uninstall-man
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CFLAGS += -Wall -O2
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CFLAGS += -DPFRUT_HEADER='"../../../../../include/uapi/linux/pfrut.h"'
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LDFLAGS += -luuid
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TOOL_OBJS = \
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pfrut.o
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include ../../Makefile.rules
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install-man: $(srctree)/man/pfrut.8
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$(ECHO) " INST " pfrut.8
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$(QUIET) $(INSTALL_DATA) -D $< $(DESTDIR)$(mandir)/man8/pfrut.8
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uninstall-man:
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$(ECHO) " UNINST " pfrut.8
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$(QUIET) rm -f $(DESTDIR)$(mandir)/man8/pfrut.8
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424
tools/power/acpi/tools/pfrut/pfrut.c
Normal file
424
tools/power/acpi/tools/pfrut/pfrut.c
Normal file
@ -0,0 +1,424 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Platform Firmware Runtime Update tool to do Management
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* Mode code injection/driver update and telemetry retrieval.
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*
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* This tool uses the interfaces provided by pfr_update and
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* pfr_telemetry drivers. These interfaces are exposed via
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* /dev/pfr_update and /dev/pfr_telemetry. Write operation
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* on the /dev/pfr_update is to load the EFI capsule into
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* kernel space. Mmap/read operations on /dev/pfr_telemetry
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* could be used to read the telemetry data to user space.
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <uuid/uuid.h>
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#include PFRUT_HEADER
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char *capsule_name;
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int action, query_cap, log_type, log_level, log_read, log_getinfo,
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revid, log_revid;
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int set_log_level, set_log_type,
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set_revid, set_log_revid;
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char *progname;
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#define LOG_ERR 0
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#define LOG_WARN 1
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#define LOG_INFO 2
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#define LOG_VERB 4
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#define LOG_EXEC_IDX 0
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#define LOG_HISTORY_IDX 1
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#define REVID_1 1
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#define REVID_2 2
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static int valid_log_level(int level)
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{
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return level == LOG_ERR || level == LOG_WARN ||
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level == LOG_INFO || level == LOG_VERB;
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}
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static int valid_log_type(int type)
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{
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return type == LOG_EXEC_IDX || type == LOG_HISTORY_IDX;
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}
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static inline int valid_log_revid(int id)
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{
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return id == REVID_1 || id == REVID_2;
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}
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static void help(void)
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{
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fprintf(stderr,
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"usage: %s [OPTIONS]\n"
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" code injection:\n"
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" -l, --load\n"
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" -s, --stage\n"
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" -a, --activate\n"
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" -u, --update [stage and activate]\n"
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" -q, --query\n"
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" -d, --revid update\n"
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" telemetry:\n"
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" -G, --getloginfo\n"
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" -T, --type(0:execution, 1:history)\n"
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" -L, --level(0, 1, 2, 4)\n"
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" -R, --read\n"
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" -D, --revid log\n",
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progname);
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}
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char *option_string = "l:sauqd:GT:L:RD:h";
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static struct option long_options[] = {
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{"load", required_argument, 0, 'l'},
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{"stage", no_argument, 0, 's'},
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{"activate", no_argument, 0, 'a'},
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{"update", no_argument, 0, 'u'},
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{"query", no_argument, 0, 'q'},
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{"getloginfo", no_argument, 0, 'G'},
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{"type", required_argument, 0, 'T'},
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{"level", required_argument, 0, 'L'},
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{"read", no_argument, 0, 'R'},
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{"setrev", required_argument, 0, 'd'},
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{"setrevlog", required_argument, 0, 'D'},
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{"help", no_argument, 0, 'h'},
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{}
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};
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static void parse_options(int argc, char **argv)
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{
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int option_index = 0;
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char *pathname;
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int opt;
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pathname = strdup(argv[0]);
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progname = basename(pathname);
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while ((opt = getopt_long_only(argc, argv, option_string,
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long_options, &option_index)) != -1) {
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switch (opt) {
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case 'l':
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capsule_name = optarg;
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break;
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case 's':
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action = 1;
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break;
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case 'a':
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action = 2;
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break;
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case 'u':
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action = 3;
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break;
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case 'q':
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query_cap = 1;
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break;
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case 'G':
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log_getinfo = 1;
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break;
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case 'T':
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log_type = atoi(optarg);
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set_log_type = 1;
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break;
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case 'L':
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log_level = atoi(optarg);
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set_log_level = 1;
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break;
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case 'R':
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log_read = 1;
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break;
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case 'd':
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revid = atoi(optarg);
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set_revid = 1;
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break;
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case 'D':
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log_revid = atoi(optarg);
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set_log_revid = 1;
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break;
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case 'h':
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help();
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exit(0);
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default:
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break;
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}
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}
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}
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void print_cap(struct pfru_update_cap_info *cap)
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{
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char *uuid;
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uuid = malloc(37);
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if (!uuid) {
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perror("Can not allocate uuid buffer\n");
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exit(1);
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}
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uuid_unparse(cap->code_type, uuid);
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printf("code injection image type:%s\n", uuid);
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printf("fw_version:%d\n", cap->fw_version);
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printf("code_rt_version:%d\n", cap->code_rt_version);
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uuid_unparse(cap->drv_type, uuid);
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printf("driver update image type:%s\n", uuid);
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printf("drv_rt_version:%d\n", cap->drv_rt_version);
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printf("drv_svn:%d\n", cap->drv_svn);
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uuid_unparse(cap->platform_id, uuid);
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printf("platform id:%s\n", uuid);
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uuid_unparse(cap->oem_id, uuid);
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printf("oem id:%s\n", uuid);
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printf("oem information length:%d\n", cap->oem_info_len);
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free(uuid);
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}
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int main(int argc, char *argv[])
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{
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int fd_update, fd_update_log, fd_capsule;
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struct pfrt_log_data_info data_info;
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struct pfrt_log_info info;
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struct pfru_update_cap_info cap;
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void *addr_map_capsule;
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struct stat st;
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char *log_buf;
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int ret = 0;
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if (getuid() != 0) {
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printf("Please run the tool as root - Exiting.\n");
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return 1;
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}
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parse_options(argc, argv);
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|
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fd_update = open("/dev/acpi_pfr_update0", O_RDWR);
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if (fd_update < 0) {
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printf("PFRU device not supported - Quit...\n");
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return 1;
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}
|
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|
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fd_update_log = open("/dev/acpi_pfr_telemetry0", O_RDWR);
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if (fd_update_log < 0) {
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printf("PFRT device not supported - Quit...\n");
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return 1;
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}
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|
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if (query_cap) {
|
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ret = ioctl(fd_update, PFRU_IOC_QUERY_CAP, &cap);
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if (ret)
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perror("Query Update Capability info failed.");
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else
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print_cap(&cap);
|
||||
|
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close(fd_update);
|
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close(fd_update_log);
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||||
|
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return ret;
|
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}
|
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|
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if (log_getinfo) {
|
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ret = ioctl(fd_update_log, PFRT_LOG_IOC_GET_DATA_INFO, &data_info);
|
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if (ret) {
|
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perror("Get telemetry data info failed.");
|
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close(fd_update);
|
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close(fd_update_log);
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|
||||
return 1;
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}
|
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|
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ret = ioctl(fd_update_log, PFRT_LOG_IOC_GET_INFO, &info);
|
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if (ret) {
|
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perror("Get telemetry info failed.");
|
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close(fd_update);
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close(fd_update_log);
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|
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return 1;
|
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}
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||||
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printf("log_level:%d\n", info.log_level);
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printf("log_type:%d\n", info.log_type);
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printf("log_revid:%d\n", info.log_revid);
|
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printf("max_data_size:%d\n", data_info.max_data_size);
|
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printf("chunk1_size:%d\n", data_info.chunk1_size);
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printf("chunk2_size:%d\n", data_info.chunk2_size);
|
||||
printf("rollover_cnt:%d\n", data_info.rollover_cnt);
|
||||
printf("reset_cnt:%d\n", data_info.reset_cnt);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
info.log_level = -1;
|
||||
info.log_type = -1;
|
||||
info.log_revid = -1;
|
||||
|
||||
if (set_log_level) {
|
||||
if (!valid_log_level(log_level)) {
|
||||
printf("Invalid log level %d\n",
|
||||
log_level);
|
||||
} else {
|
||||
info.log_level = log_level;
|
||||
}
|
||||
}
|
||||
|
||||
if (set_log_type) {
|
||||
if (!valid_log_type(log_type)) {
|
||||
printf("Invalid log type %d\n",
|
||||
log_type);
|
||||
} else {
|
||||
info.log_type = log_type;
|
||||
}
|
||||
}
|
||||
|
||||
if (set_log_revid) {
|
||||
if (!valid_log_revid(log_revid)) {
|
||||
printf("Invalid log revid %d, unchanged.\n",
|
||||
log_revid);
|
||||
} else {
|
||||
info.log_revid = log_revid;
|
||||
}
|
||||
}
|
||||
|
||||
ret = ioctl(fd_update_log, PFRT_LOG_IOC_SET_INFO, &info);
|
||||
if (ret) {
|
||||
perror("Log information set failed.(log_level, log_type, log_revid)");
|
||||
close(fd_update);
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (set_revid) {
|
||||
ret = ioctl(fd_update, PFRU_IOC_SET_REV, &revid);
|
||||
if (ret) {
|
||||
perror("pfru update revid set failed");
|
||||
close(fd_update);
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
printf("pfru update revid set to %d\n", revid);
|
||||
}
|
||||
|
||||
if (capsule_name) {
|
||||
fd_capsule = open(capsule_name, O_RDONLY);
|
||||
if (fd_capsule < 0) {
|
||||
perror("Can not open capsule file...");
|
||||
close(fd_update);
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (fstat(fd_capsule, &st) < 0) {
|
||||
perror("Can not fstat capsule file...");
|
||||
close(fd_capsule);
|
||||
close(fd_update);
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
addr_map_capsule = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED,
|
||||
fd_capsule, 0);
|
||||
if (addr_map_capsule == MAP_FAILED) {
|
||||
perror("Failed to mmap capsule file.");
|
||||
close(fd_capsule);
|
||||
close(fd_update);
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
ret = write(fd_update, (char *)addr_map_capsule, st.st_size);
|
||||
printf("Load %d bytes of capsule file into the system\n",
|
||||
ret);
|
||||
|
||||
if (ret == -1) {
|
||||
perror("Failed to load capsule file");
|
||||
close(fd_capsule);
|
||||
close(fd_update);
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
munmap(addr_map_capsule, st.st_size);
|
||||
close(fd_capsule);
|
||||
printf("Load done.\n");
|
||||
}
|
||||
|
||||
if (action) {
|
||||
if (action == 1) {
|
||||
ret = ioctl(fd_update, PFRU_IOC_STAGE, NULL);
|
||||
} else if (action == 2) {
|
||||
ret = ioctl(fd_update, PFRU_IOC_ACTIVATE, NULL);
|
||||
} else if (action == 3) {
|
||||
ret = ioctl(fd_update, PFRU_IOC_STAGE_ACTIVATE, NULL);
|
||||
} else {
|
||||
close(fd_update);
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
printf("Update finished, return %d\n", ret);
|
||||
}
|
||||
|
||||
close(fd_update);
|
||||
|
||||
if (log_read) {
|
||||
void *p_mmap;
|
||||
int max_data_sz;
|
||||
|
||||
ret = ioctl(fd_update_log, PFRT_LOG_IOC_GET_DATA_INFO, &data_info);
|
||||
if (ret) {
|
||||
perror("Get telemetry data info failed.");
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
max_data_sz = data_info.max_data_size;
|
||||
if (!max_data_sz) {
|
||||
printf("No telemetry data available.\n");
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
log_buf = malloc(max_data_sz + 1);
|
||||
if (!log_buf) {
|
||||
perror("log_buf allocate failed.");
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
p_mmap = mmap(NULL, max_data_sz, PROT_READ, MAP_SHARED, fd_update_log, 0);
|
||||
if (p_mmap == MAP_FAILED) {
|
||||
perror("mmap error.");
|
||||
close(fd_update_log);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
memcpy(log_buf, p_mmap, max_data_sz);
|
||||
log_buf[max_data_sz] = '\0';
|
||||
printf("%s\n", log_buf);
|
||||
free(log_buf);
|
||||
|
||||
munmap(p_mmap, max_data_sz);
|
||||
}
|
||||
|
||||
close(fd_update_log);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user