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xen_pvh: Support building a standalone image 

Support mkimage for xen_pvh.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Hans van Kranenburg <hans@knorrie.org>
This commit is contained in:
Juergen Gross 2018-12-07 13:11:46 +01:00 committed by Daniel Kiper
parent 9bce25213a
commit 78899c42d7
5 changed files with 70 additions and 8 deletions
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3
include/grub/util/mkimage.h
View File

@ -71,7 +71,8 @@ struct grub_install_image_target_desc
IMAGE_I386_IEEE1275,
IMAGE_LOONGSON_ELF, IMAGE_QEMU, IMAGE_PPC, IMAGE_YEELOONG_FLASH,
IMAGE_FULOONG2F_FLASH, IMAGE_I386_PC_PXE, IMAGE_MIPS_ARC,
IMAGE_QEMU_MIPS_FLASH, IMAGE_UBOOT, IMAGE_XEN, IMAGE_I386_PC_ELTORITO
IMAGE_QEMU_MIPS_FLASH, IMAGE_UBOOT, IMAGE_XEN, IMAGE_I386_PC_ELTORITO,
IMAGE_XEN_PVH
} id;
enum
{

4
util/grub-mkimage32.c
View File

@ -17,7 +17,9 @@
# define ELF_R_SYM(val) ELF32_R_SYM(val)
# define ELF_R_TYPE(val) ELF32_R_TYPE(val)
# define ELF_ST_TYPE(val) ELF32_ST_TYPE(val)
#define XEN_NOTE_SIZE 132
#define XEN_NOTE_SIZE 132
#define XEN_PVH_NOTE_SIZE 20
#ifndef GRUB_MKIMAGEXX
#include "grub-mkimagexx.c"

4
util/grub-mkimage64.c
View File

@ -17,7 +17,9 @@
# define ELF_R_SYM(val) ELF64_R_SYM(val)
# define ELF_R_TYPE(val) ELF64_R_TYPE(val)
# define ELF_ST_TYPE(val) ELF64_ST_TYPE(val)
#define XEN_NOTE_SIZE 120
#define XEN_NOTE_SIZE 120
#define XEN_PVH_NOTE_SIZE 24
#ifndef GRUB_MKIMAGEXX
#include "grub-mkimagexx.c"

44
util/grub-mkimagexx.c
View File

@ -229,12 +229,12 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
phnum++;
footer_size += sizeof (struct grub_ieee1275_note);
}
if (image_target->id == IMAGE_XEN)
if (image_target->id == IMAGE_XEN || image_target->id == IMAGE_XEN_PVH)
{
phnum++;
shnum++;
string_size += sizeof (".xen");
footer_size += XEN_NOTE_SIZE;
footer_size += (image_target->id == IMAGE_XEN) ? XEN_NOTE_SIZE : XEN_PVH_NOTE_SIZE;
}
header_size = ALIGN_UP (sizeof (*ehdr) + phnum * sizeof (*phdr)
+ shnum * sizeof (*shdr) + string_size, layout->align);
@ -421,6 +421,39 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
phdr->p_offset = grub_host_to_target32 (header_size + program_size);
}
if (image_target->id == IMAGE_XEN_PVH)
{
char *note_start = (elf_img + program_size + header_size);
Elf_Nhdr *note_ptr;
char *ptr = (char *) note_start;
grub_util_info ("adding XEN NOTE segment");
/* Phys32 Entry. */
note_ptr = (Elf_Nhdr *) ptr;
note_ptr->n_namesz = grub_host_to_target32 (sizeof (GRUB_XEN_NOTE_NAME));
note_ptr->n_descsz = grub_host_to_target32 (image_target->voidp_sizeof);
note_ptr->n_type = grub_host_to_target32 (XEN_ELFNOTE_PHYS32_ENTRY);
ptr += sizeof (Elf_Nhdr);
memcpy (ptr, GRUB_XEN_NOTE_NAME, sizeof (GRUB_XEN_NOTE_NAME));
ptr += ALIGN_UP (sizeof (GRUB_XEN_NOTE_NAME), 4);
memset (ptr, 0, image_target->voidp_sizeof);
*(grub_uint32_t *) ptr = GRUB_KERNEL_I386_XEN_PVH_LINK_ADDR;
ptr += image_target->voidp_sizeof;
assert (XEN_PVH_NOTE_SIZE == (ptr - note_start));
phdr++;
phdr->p_type = grub_host_to_target32 (PT_NOTE);
phdr->p_flags = grub_host_to_target32 (PF_R);
phdr->p_align = grub_host_to_target32 (image_target->voidp_sizeof);
phdr->p_vaddr = 0;
phdr->p_paddr = 0;
phdr->p_filesz = grub_host_to_target32 (XEN_PVH_NOTE_SIZE);
phdr->p_memsz = 0;
phdr->p_offset = grub_host_to_target32 (header_size + program_size);
}
if (note)
{
int note_size = sizeof (struct grub_ieee1275_note);
@ -496,7 +529,7 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
shdr->sh_entsize = grub_host_to_target32 (0);
shdr++;
if (image_target->id == IMAGE_XEN)
if (image_target->id == IMAGE_XEN || image_target->id == IMAGE_XEN_PVH)
{
memcpy (ptr, ".xen", sizeof (".xen"));
shdr->sh_name = grub_host_to_target32 (ptr - str_start);
@ -504,7 +537,10 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
shdr->sh_type = grub_host_to_target32 (SHT_PROGBITS);
shdr->sh_addr = grub_host_to_target_addr (target_addr + layout->kernel_size);
shdr->sh_offset = grub_host_to_target_addr (program_size + header_size);
shdr->sh_size = grub_host_to_target32 (XEN_NOTE_SIZE);
if (image_target->id == IMAGE_XEN)
shdr->sh_size = grub_host_to_target32 (XEN_NOTE_SIZE);
else
shdr->sh_size = grub_host_to_target32 (XEN_PVH_NOTE_SIZE);
shdr->sh_link = grub_host_to_target32 (0);
shdr->sh_info = grub_host_to_target32 (0);
shdr->sh_addralign = grub_host_to_target32 (image_target->voidp_sizeof);

23
util/mkimage.c
View File

@ -132,6 +132,24 @@ static const struct grub_install_image_target_desc image_targets[] =
.link_addr = GRUB_KERNEL_I386_PC_LINK_ADDR,
.default_compression = GRUB_COMPRESSION_LZMA
},
{
.dirname = "i386-xen_pvh",
.names = { "i386-xen_pvh", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_XEN_PVH,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.elf_target = EM_386,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_I386_XEN_PVH_LINK_ADDR,
.mod_align = GRUB_KERNEL_I386_XEN_PVH_MOD_ALIGN,
.link_align = 4
},
{
.dirname = "i386-pc",
.names = { "i386-pc-pxe", NULL },
@ -860,7 +878,8 @@ grub_install_generate_image (const char *dir, const char *prefix,
else
kernel_img = grub_mkimage_load_image64 (kernel_path, total_module_size,
&layout, image_target);
if (image_target->id == IMAGE_XEN && layout.align < 4096)
if ((image_target->id == IMAGE_XEN || image_target->id == IMAGE_XEN_PVH) &&
layout.align < 4096)
layout.align = 4096;
if ((image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
@ -1103,6 +1122,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
case IMAGE_MIPS_ARC:
case IMAGE_QEMU_MIPS_FLASH:
case IMAGE_XEN:
case IMAGE_XEN_PVH:
break;
case IMAGE_SPARC64_AOUT:
case IMAGE_SPARC64_RAW:
@ -1679,6 +1699,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
case IMAGE_LOONGSON_ELF:
case IMAGE_PPC:
case IMAGE_XEN:
case IMAGE_XEN_PVH:
case IMAGE_COREBOOT:
case IMAGE_I386_IEEE1275:
{