[PATCH 0/3] kexec: Add support for UKI format kernel

[PATCH 0/3] kexec: Add support for UKI format kernel

[Pingfan Liu]

As a UEFI PE format kernel image becomes more popular, there is a need
for kexec to reboot those kinds of images.

After the introduction of the UKI (another PE), at present, there are
three competitive methods to support that goal, but all of them have
pros and cons.[1] It seems that none of them can be accepted in the near
future.  Therefore, we are resorting to the user space kexec-tools to
parse the UKI format for the time being.

By parsing the UKI, systemd-stub is stepped around and PCM will not affect
the boot up of the second system.

[1]: https://github.com/rhkdump/kexec_uefi/blob/main/overview.md#the-competitive-solutions

Cc: Simon Horman <horms@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Jan Hendrik Farr <kernel@jfarr.cc>
Cc: Philipp Rudo <prudo@redhat.com>
Cc: Lennart Poettering <mzxreary@0pointer.de>

Cc: kexec@lists.infradead.org

Pingfan Liu (3):
  kexec: Introduce default_initrd_fd to pass internal initrd information
  kexec: Introduce UKI image parser
  arm64: Support UKI image format

 include/pe.h                         | 104 +++++++++++++++++++++++
 kexec/Makefile                       |   1 +
 kexec/arch/arm64/kexec-arm64.c       |   1 +
 kexec/arch/arm64/kexec-image-arm64.c |   3 +-
 kexec/arch/x86_64/kexec-bzImage64.c  |   3 +-
 kexec/kexec-uki.c                    | 122 +++++++++++++++++++++++++++
 kexec/kexec.c                        |   2 +
 kexec/kexec.h                        |   5 ++
 8 files changed, 239 insertions(+), 2 deletions(-)
 create mode 100644 include/pe.h
 create mode 100644 kexec/kexec-uki.c

-- 
2.41.0


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[PATCH 1/3] kexec: Introduce default_initrd_fd to pass internal initrd information

[Pingfan Liu]

At present, initrd information is passed through --initrd args, but for
the UKI case, the initrd may be stored in the .initrd section.

It means that initrd is perceived at the probe stage. And there should
be a way to carry this information forward to the load stage. In oder to
implement that, introducing a global default_initrd_fd to do it.

Signed-off-by: Pingfan Liu <piliu@redhat.com>
Cc: Simon Horman <horms@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: kexec@lists.infradead.org

---
 kexec/arch/arm64/kexec-image-arm64.c | 3 ++-
 kexec/arch/x86_64/kexec-bzImage64.c  | 3 ++-
 kexec/kexec.c                        | 2 ++
 kexec/kexec.h                        | 1 +
 4 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/kexec/arch/arm64/kexec-image-arm64.c b/kexec/arch/arm64/kexec-image-arm64.c
index a196747..188e7f6 100644
--- a/kexec/arch/arm64/kexec-image-arm64.c
+++ b/kexec/arch/arm64/kexec-image-arm64.c
@@ -50,7 +50,8 @@ int image_arm64_load(int argc, char **argv, const char *kernel_buf,
 				result = EFAILED;
 				goto exit;
 			}
-		}
+		} else if (default_initrd_fd != -1)
+			info->initrd_fd = default_initrd_fd;
 
 		if (arm64_opts.command_line) {
 			info->command_line = (char *)arm64_opts.command_line;
diff --git a/kexec/arch/x86_64/kexec-bzImage64.c b/kexec/arch/x86_64/kexec-bzImage64.c
index aba4e3b..e337dc0 100644
--- a/kexec/arch/x86_64/kexec-bzImage64.c
+++ b/kexec/arch/x86_64/kexec-bzImage64.c
@@ -307,7 +307,8 @@ int bzImage64_load_file(int argc, char **argv, struct kexec_info *info)
 			ret = -1;
 			goto out;
 		}
-	}
+	} else if (default_initrd_fd != -1)
+		info->initrd_fd = default_initrd_fd;
 
 	info->command_line = command_line;
 	info->command_line_len = command_line_len;
diff --git a/kexec/kexec.c b/kexec/kexec.c
index 7c614b0..91edb56 100644
--- a/kexec/kexec.c
+++ b/kexec/kexec.c
@@ -67,6 +67,8 @@ int do_hotplug = 0;
 static unsigned long kexec_flags = 0;
 /* Flags for kexec file (fd) based syscall */
 static unsigned long kexec_file_flags = 0;
+/* initrd detected in probe phase */
+int default_initrd_fd = -1;
 int kexec_debug = 0;
 
 void dbgprint_mem_range(const char *prefix, struct memory_range *mr, int nr_mr)
diff --git a/kexec/kexec.h b/kexec/kexec.h
index 31c323f..396687d 100644
--- a/kexec/kexec.h
+++ b/kexec/kexec.h
@@ -114,6 +114,7 @@ do { \
 #define _ALIGN(addr, size)     _ALIGN_UP(addr, size)
 
 extern unsigned long long mem_min, mem_max;
+extern int default_initrd_fd;
 extern int kexec_debug;
 
 #define dbgprintf(...) \
-- 
2.41.0


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[PATCH 2/3] kexec: Introduce UKI image parser

[Pingfan Liu]

A UKI image is a PE file that consists of several sections, typically
including: .text, .data, .linux, .initrd, .cmdline, and others.

The kernel image is stored in the .linux section, which is one of the
formats currently recognized by kexec-tools. Therefore, the UKI parser
can be used to strip away the UKI layer, allowing the other parser to
process the kernel image.

Signed-off-by: Pingfan Liu <piliu@redhat.com>
Cc: Simon Horman <horms@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: kexec@lists.infradead.org
---
 include/pe.h      | 104 +++++++++++++++++++++++++++++++++++++++
 kexec/Makefile    |   1 +
 kexec/kexec-uki.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++
 kexec/kexec.h     |   4 ++
 4 files changed, 231 insertions(+)
 create mode 100644 include/pe.h
 create mode 100644 kexec/kexec-uki.c

diff --git a/include/pe.h b/include/pe.h
new file mode 100644
index 0000000..2617074
--- /dev/null
+++ b/include/pe.h
@@ -0,0 +1,104 @@
+/*
+ * Extract from linux kernel include/linux/pe.h
+ */
+
+#ifndef __PE_H__
+#define __PE_H__
+
+struct pe_hdr {
+	uint32_t magic;		/* PE magic */
+	uint16_t machine;	/* machine type */
+	uint16_t sections;	/* number of sections */
+	uint32_t timestamp;	/* time_t */
+	uint32_t symbol_table;	/* symbol table offset */
+	uint32_t symbols;	/* number of symbols */
+	uint16_t opt_hdr_size;	/* size of optional header */
+	uint16_t flags;		/* flags */
+};
+
+/* the fact that pe32 isn't padded where pe32+ is 64-bit means union won't
+ * work right.  vomit. */
+struct pe32_opt_hdr {
+	/* "standard" header */
+	uint16_t magic;		/* file type */
+	uint8_t  ld_major;	/* linker major version */
+	uint8_t  ld_minor;	/* linker minor version */
+	uint32_t text_size;	/* size of text section(s) */
+	uint32_t data_size;	/* size of data section(s) */
+	uint32_t bss_size;	/* size of bss section(s) */
+	uint32_t entry_point;	/* file offset of entry point */
+	uint32_t code_base;	/* relative code addr in ram */
+	uint32_t data_base;	/* relative data addr in ram */
+	/* "windows" header */
+	uint32_t image_base;	/* preferred load address */
+	uint32_t section_align;	/* alignment in bytes */
+	uint32_t file_align;	/* file alignment in bytes */
+	uint16_t os_major;	/* major OS version */
+	uint16_t os_minor;	/* minor OS version */
+	uint16_t image_major;	/* major image version */
+	uint16_t image_minor;	/* minor image version */
+	uint16_t subsys_major;	/* major subsystem version */
+	uint16_t subsys_minor;	/* minor subsystem version */
+	uint32_t win32_version;	/* reserved, must be 0 */
+	uint32_t image_size;	/* image size */
+	uint32_t header_size;	/* header size rounded up to
+				   file_align */
+	uint32_t csum;		/* checksum */
+	uint16_t subsys;	/* subsystem */
+	uint16_t dll_flags;	/* more flags! */
+	uint32_t stack_size_req;/* amt of stack requested */
+	uint32_t stack_size;	/* amt of stack required */
+	uint32_t heap_size_req;	/* amt of heap requested */
+	uint32_t heap_size;	/* amt of heap required */
+	uint32_t loader_flags;	/* reserved, must be 0 */
+	uint32_t data_dirs;	/* number of data dir entries */
+};
+
+struct pe32plus_opt_hdr {
+	uint16_t magic;		/* file type */
+	uint8_t  ld_major;	/* linker major version */
+	uint8_t  ld_minor;	/* linker minor version */
+	uint32_t text_size;	/* size of text section(s) */
+	uint32_t data_size;	/* size of data section(s) */
+	uint32_t bss_size;	/* size of bss section(s) */
+	uint32_t entry_point;	/* file offset of entry point */
+	uint32_t code_base;	/* relative code addr in ram */
+	/* "windows" header */
+	uint64_t image_base;	/* preferred load address */
+	uint32_t section_align;	/* alignment in bytes */
+	uint32_t file_align;	/* file alignment in bytes */
+	uint16_t os_major;	/* major OS version */
+	uint16_t os_minor;	/* minor OS version */
+	uint16_t image_major;	/* major image version */
+	uint16_t image_minor;	/* minor image version */
+	uint16_t subsys_major;	/* major subsystem version */
+	uint16_t subsys_minor;	/* minor subsystem version */
+	uint32_t win32_version;	/* reserved, must be 0 */
+	uint32_t image_size;	/* image size */
+	uint32_t header_size;	/* header size rounded up to
+				   file_align */
+	uint32_t csum;		/* checksum */
+	uint16_t subsys;	/* subsystem */
+	uint16_t dll_flags;	/* more flags! */
+	uint64_t stack_size_req;/* amt of stack requested */
+	uint64_t stack_size;	/* amt of stack required */
+	uint64_t heap_size_req;	/* amt of heap requested */
+	uint64_t heap_size;	/* amt of heap required */
+	uint32_t loader_flags;	/* reserved, must be 0 */
+	uint32_t data_dirs;	/* number of data dir entries */
+};
+
+struct section_header {
+	char name[8];			/* name or "/12\0" string tbl offset */
+	uint32_t virtual_size;		/* size of loaded section in ram */
+	uint32_t virtual_address;	/* relative virtual address */
+	uint32_t raw_data_size;		/* size of the section */
+	uint32_t data_addr;		/* file pointer to first page of sec */
+	uint32_t relocs;		/* file pointer to relocation entries */
+	uint32_t line_numbers;		/* line numbers! */
+	uint16_t num_relocs;		/* number of relocations */
+	uint16_t num_lin_numbers;	/* srsly. */
+	uint32_t flags;
+};
+
+#endif
diff --git a/kexec/Makefile b/kexec/Makefile
index 11682bf..d4f26d7 100644
--- a/kexec/Makefile
+++ b/kexec/Makefile
@@ -18,6 +18,7 @@ KEXEC_SRCS_base += kexec/kexec-elf-core.c
 KEXEC_SRCS_base += kexec/kexec-elf-rel.c
 KEXEC_SRCS_base += kexec/kexec-elf-boot.c
 KEXEC_SRCS_base += kexec/kexec-pe-zboot.c
+KEXEC_SRCS_base += kexec/kexec-uki.c
 KEXEC_SRCS_base += kexec/kexec-iomem.c
 KEXEC_SRCS_base += kexec/firmware_memmap.c
 KEXEC_SRCS_base += kexec/crashdump.c
diff --git a/kexec/kexec-uki.c b/kexec/kexec-uki.c
new file mode 100644
index 0000000..36b00fe
--- /dev/null
+++ b/kexec/kexec-uki.c
@@ -0,0 +1,122 @@
+#include <limits.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <pe.h>
+#include "kexec.h"
+
+#define UKI_LINUX_SECTION ".linux"
+#define UKI_INITRD_SECTION ".initrd"
+#define UKI_CMDLINE_SECTION ".cmdline"
+#define UKI_DTB_SECTION ".dtb"
+
+#define FILENAME_UKI_INITRD          "/tmp/InitrdXXXXXX"
+
+static int embeded_linux_format_index = -1;
+
+/*
+ * Return -1 if not PE, else offset of the PE header
+ */
+static int get_pehdr_offset(const char *buf)
+{
+	int pe_hdr_offset;
+
+	pe_hdr_offset = *((int *)(buf + 0x3c));
+	buf += pe_hdr_offset;
+	if (!!memcmp(buf, "PE\0\0", 4)) {
+		printf("Not a PE file\n");
+		return -1;
+	}
+
+	return pe_hdr_offset;
+}
+
+int uki_image_probe(const char *file_buf, off_t buf_sz)
+{
+	struct pe_hdr *pe_hdr;
+	struct pe32plus_opt_hdr *opt_hdr;
+	struct section_header *sect_hdr;
+	int pe_hdr_offset, section_nr, linux_sz = -1;
+	char *pe_part_buf, *linux_src;
+	char *initrd_fname = NULL;
+	int initrd_fd = -1;
+
+	pe_hdr_offset = get_pehdr_offset(file_buf);
+	pe_part_buf = (char *)file_buf + pe_hdr_offset;
+	pe_hdr = (struct pe_hdr *)pe_part_buf;
+	if (pe_hdr->opt_hdr_size == 0) {
+		printf("ERR: optional header is missing\n");
+		return -1;
+	}
+	section_nr = pe_hdr->sections;
+	opt_hdr = (struct pe32plus_opt_hdr *)(pe_part_buf + sizeof(struct pe_hdr));
+	sect_hdr = (struct section_header *)((char *)opt_hdr + pe_hdr->opt_hdr_size);
+
+	for (int i = 0; i < section_nr; i++) {
+		if (!strcmp(sect_hdr->name, UKI_LINUX_SECTION)) {
+			/* data_addr is relative to the whole file */
+			linux_src = (char *)file_buf + sect_hdr->data_addr;
+			linux_sz = sect_hdr->raw_data_size;
+
+		} else if (!strcmp(sect_hdr->name, UKI_INITRD_SECTION)) {
+			if (!(initrd_fname = strdup(FILENAME_UKI_INITRD))) {
+				dbgprintf("%s: Can't duplicate strings\n", __func__);
+				goto next;
+			}
+
+			if ((initrd_fd = mkstemp(initrd_fname)) < 0) {
+				dbgprintf("%s: Can't open file %s\n", __func__,	initrd_fname);
+				goto next;
+			}
+
+			if (write(initrd_fd, (char *)file_buf + sect_hdr->data_addr,
+					sect_hdr->raw_data_size) != sect_hdr->raw_data_size) {
+				dbgprintf("%s: Can't write the compressed file %s\n",
+						__func__, initrd_fname);
+				goto next;
+			} else {
+				default_initrd_fd = open(initrd_fname, O_RDONLY);
+				close(initrd_fd);
+			}
+		}
+next:
+		sect_hdr++;
+	}
+
+	if (linux_sz == -1) {
+		printf("ERR: can not find .linux section\n");
+		return -1;
+	}
+	/*
+	 * After stripping the UKI coat, the real kernel format can be handled now.
+	 */
+	for (int i = 0; i < file_types; i++) {
+		/* kernel_fd will be created by probe */
+		if (file_type[i].probe != uki_image_probe &&
+		    file_type[i].probe(linux_src, linux_sz) >= 0) {
+			embeded_linux_format_index = i;
+			break;
+		}
+	}
+	if (embeded_linux_format_index < 0) {
+		printf("Can not recognize the kernel format in .linux section\n");
+		return -1;
+	}
+	return 0;
+}
+
+int uki_image_load(int argc, char **argv, const char *buf, off_t len,
+			struct kexec_info *info)
+{
+	return file_type[embeded_linux_format_index].load(argc, argv, buf, len, info);
+}
+
+void uki_image_usage(void)
+{
+	printf(
+"     An UKI image.\n");
+}
diff --git a/kexec/kexec.h b/kexec/kexec.h
index 396687d..c47408b 100644
--- a/kexec/kexec.h
+++ b/kexec/kexec.h
@@ -357,4 +357,8 @@ static inline void ultoa(unsigned long val, char *str)
 	str[pos] = 0;
 }
 
+extern int uki_image_probe(const char *file_buf, off_t buf_sz);
+extern int uki_image_load(int argc, char **argv, const char *buf, off_t len,
+		struct kexec_info *info);
+extern void uki_image_usage(void);
 #endif /* KEXEC_H */
-- 
2.41.0


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Re: [PATCH 2/3] kexec: Introduce UKI image parser

[Simon Horman]

On Tue, Oct 08, 2024 at 07:54:02PM +0800, Pingfan Liu wrote:
> A UKI image is a PE file that consists of several sections, typically
> including: .text, .data, .linux, .initrd, .cmdline, and others.
> 
> The kernel image is stored in the .linux section, which is one of the
> formats currently recognized by kexec-tools. Therefore, the UKI parser
> can be used to strip away the UKI layer, allowing the other parser to
> process the kernel image.
> 
> Signed-off-by: Pingfan Liu <piliu@redhat.com>
> Cc: Simon Horman <horms@kernel.org>
> Cc: Eric Biederman <ebiederm@xmission.com>
> Cc: Baoquan He <bhe@redhat.com>
> Cc: Dave Young <dyoung@redhat.com>
> Cc: kexec@lists.infradead.org
> ---
>  include/pe.h      | 104 +++++++++++++++++++++++++++++++++++++++
>  kexec/Makefile    |   1 +
>  kexec/kexec-uki.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++
>  kexec/kexec.h     |   4 ++
>  4 files changed, 231 insertions(+)
>  create mode 100644 include/pe.h
>  create mode 100644 kexec/kexec-uki.c

Hi Pingfan Liu,

I think you need to squash the following into this patch
so that pe.h is included in distribution tarballs.

You should be able to see the problem by running: make distcheck.

diff --git a/include/Makefile b/include/Makefile
index cd88a26b1476..6a3e8541c36d 100644
--- a/include/Makefile
+++ b/include/Makefile
@@ -8,6 +8,7 @@ dist += include/Makefile		\
 	include/x86/mb_header.h		\
 	include/x86/multiboot2.h	\
 	include/elf.h			\
+	include/pe.h			\
 	include/image.h			\
 	include/unused.h		\
 	include/boot/linuxbios_tables.h	\

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Re: [PATCH 2/3] kexec: Introduce UKI image parser

[Pingfan Liu]

On Fri, Oct 11, 2024 at 4:44 PM Simon Horman <horms@kernel.org> wrote:
>
> On Tue, Oct 08, 2024 at 07:54:02PM +0800, Pingfan Liu wrote:
> > A UKI image is a PE file that consists of several sections, typically
> > including: .text, .data, .linux, .initrd, .cmdline, and others.
> >
> > The kernel image is stored in the .linux section, which is one of the
> > formats currently recognized by kexec-tools. Therefore, the UKI parser
> > can be used to strip away the UKI layer, allowing the other parser to
> > process the kernel image.
> >
> > Signed-off-by: Pingfan Liu <piliu@redhat.com>
> > Cc: Simon Horman <horms@kernel.org>
> > Cc: Eric Biederman <ebiederm@xmission.com>
> > Cc: Baoquan He <bhe@redhat.com>
> > Cc: Dave Young <dyoung@redhat.com>
> > Cc: kexec@lists.infradead.org
> > ---
> >  include/pe.h      | 104 +++++++++++++++++++++++++++++++++++++++
> >  kexec/Makefile    |   1 +
> >  kexec/kexec-uki.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++
> >  kexec/kexec.h     |   4 ++
> >  4 files changed, 231 insertions(+)
> >  create mode 100644 include/pe.h
> >  create mode 100644 kexec/kexec-uki.c
>
> Hi Pingfan Liu,
>
> I think you need to squash the following into this patch
> so that pe.h is included in distribution tarballs.
>
> You should be able to see the problem by running: make distcheck.
>

Oh, thanks. I will fix it in V2 and  remember to do such tests in future.

Best regards,

Pingfan

> diff --git a/include/Makefile b/include/Makefile
> index cd88a26b1476..6a3e8541c36d 100644
> --- a/include/Makefile
> +++ b/include/Makefile
> @@ -8,6 +8,7 @@ dist += include/Makefile                \
>         include/x86/mb_header.h         \
>         include/x86/multiboot2.h        \
>         include/elf.h                   \
> +       include/pe.h                    \
>         include/image.h                 \
>         include/unused.h                \
>         include/boot/linuxbios_tables.h \
>


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Re: [PATCH 2/3] kexec: Introduce UKI image parser

[Pingfan Liu]

Hello everyone,

I have created V2 and make a PR: https://github.com/horms/kexec-tools/pull/9

Due to utilizing the workflow in github to have some basic checks
automatically , I migrated it to github instead of mailing-list.

Please share your opinions.


Thanks

On Fri, Oct 11, 2024 at 7:14 PM Pingfan Liu <piliu@redhat.com> wrote:
>
> On Fri, Oct 11, 2024 at 4:44 PM Simon Horman <horms@kernel.org> wrote:
> >
> > On Tue, Oct 08, 2024 at 07:54:02PM +0800, Pingfan Liu wrote:
> > > A UKI image is a PE file that consists of several sections, typically
> > > including: .text, .data, .linux, .initrd, .cmdline, and others.
> > >
> > > The kernel image is stored in the .linux section, which is one of the
> > > formats currently recognized by kexec-tools. Therefore, the UKI parser
> > > can be used to strip away the UKI layer, allowing the other parser to
> > > process the kernel image.
> > >
> > > Signed-off-by: Pingfan Liu <piliu@redhat.com>
> > > Cc: Simon Horman <horms@kernel.org>
> > > Cc: Eric Biederman <ebiederm@xmission.com>
> > > Cc: Baoquan He <bhe@redhat.com>
> > > Cc: Dave Young <dyoung@redhat.com>
> > > Cc: kexec@lists.infradead.org
> > > ---
> > >  include/pe.h      | 104 +++++++++++++++++++++++++++++++++++++++
> > >  kexec/Makefile    |   1 +
> > >  kexec/kexec-uki.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++
> > >  kexec/kexec.h     |   4 ++
> > >  4 files changed, 231 insertions(+)
> > >  create mode 100644 include/pe.h
> > >  create mode 100644 kexec/kexec-uki.c
> >
> > Hi Pingfan Liu,
> >
> > I think you need to squash the following into this patch
> > so that pe.h is included in distribution tarballs.
> >
> > You should be able to see the problem by running: make distcheck.
> >
>
> Oh, thanks. I will fix it in V2 and  remember to do such tests in future.
>
> Best regards,
>
> Pingfan
>
> > diff --git a/include/Makefile b/include/Makefile
> > index cd88a26b1476..6a3e8541c36d 100644
> > --- a/include/Makefile
> > +++ b/include/Makefile
> > @@ -8,6 +8,7 @@ dist += include/Makefile                \
> >         include/x86/mb_header.h         \
> >         include/x86/multiboot2.h        \
> >         include/elf.h                   \
> > +       include/pe.h                    \
> >         include/image.h                 \
> >         include/unused.h                \
> >         include/boot/linuxbios_tables.h \
> >


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Re: [PATCH 2/3] kexec: Introduce UKI image parser

[Simon Horman]

On Mon, Oct 14, 2024 at 10:43:34AM +0800, Pingfan Liu wrote:
> Hello everyone,
> 
> I have created V2 and make a PR: https://github.com/horms/kexec-tools/pull/9
> 
> Due to utilizing the workflow in github to have some basic checks
> automatically , I migrated it to github instead of mailing-list.
> 
> Please share your opinions.

I appreciate you making use of GitHub,
but please post patch submissions using the email workflow.

Thanks!

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Re: [PATCH 2/3] kexec: Introduce UKI image parser

[Pingfan Liu]

On Tue, Oct 15, 2024 at 9:26 PM Simon Horman <horms@kernel.org> wrote:
>
> On Mon, Oct 14, 2024 at 10:43:34AM +0800, Pingfan Liu wrote:
> > Hello everyone,
> >
> > I have created V2 and make a PR: https://github.com/horms/kexec-tools/pull/9
> >
> > Due to utilizing the workflow in github to have some basic checks
> > automatically , I migrated it to github instead of mailing-list.
> >
> > Please share your opinions.
>
> I appreciate you making use of GitHub,
> but please post patch submissions using the email workflow.
>

See, I will use .github/workflows to check any build issue and go
through the email workflow.

I have posted V2 using the mailing list.

Thanks,

Pingfan


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[PATCH 3/3] arm64: Support UKI image format

[Pingfan Liu]

Signed-off-by: Pingfan Liu <piliu@redhat.com>
Cc: Simon Horman <horms@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: kexec@lists.infradead.org
---
 kexec/arch/arm64/kexec-arm64.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kexec/arch/arm64/kexec-arm64.c b/kexec/arch/arm64/kexec-arm64.c
index 55e822b..9091f40 100644
--- a/kexec/arch/arm64/kexec-arm64.c
+++ b/kexec/arch/arm64/kexec-arm64.c
@@ -75,6 +75,7 @@ struct file_type file_type[] = {
 	{"Image", image_arm64_probe, image_arm64_load, image_arm64_usage},
 	{"uImage", uImage_arm64_probe, uImage_arm64_load, uImage_arm64_usage},
 	{"vmlinuz", pez_arm64_probe, pez_arm64_load, pez_arm64_usage},
+	{"uki", uki_image_probe, uki_image_load, uki_image_usage},
 };
 
 int file_types = sizeof(file_type) / sizeof(file_type[0]);
-- 
2.41.0


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