diff options
| -rw-r--r-- | arch/powerpc/boot/addnote.c | 175 | ||||
| -rwxr-xr-x | arch/powerpc/boot/wrapper | 9 | ||||
| -rw-r--r-- | arch/powerpc/kernel/prom_init.c | 10 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vmlinux.lds.S | 3 |
4 files changed, 52 insertions, 145 deletions
diff --git a/arch/powerpc/boot/addnote.c b/arch/powerpc/boot/addnote.c index 3091d1d21ae..b1e5611b2ab 100644 --- a/arch/powerpc/boot/addnote.c +++ b/arch/powerpc/boot/addnote.c @@ -11,12 +11,7 @@ * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * - * Usage: addnote [-r realbase] zImage [note.elf] - * - * If note.elf is supplied, it is the name of an ELF file that contains - * an RPA note to use instead of the built-in one. Alternatively, the - * note.elf file may be empty, in which case the built-in RPA note is - * used (this is to simplify how this is invoked from the wrapper script). + * Usage: addnote zImage */ #include <stdio.h> #include <stdlib.h> @@ -48,29 +43,27 @@ char rpaname[] = "IBM,RPA-Client-Config"; */ #define N_RPA_DESCR 8 unsigned int rpanote[N_RPA_DESCR] = { - 1, /* lparaffinity */ - 128, /* min_rmo_size */ + 0, /* lparaffinity */ + 64, /* min_rmo_size */ 0, /* min_rmo_percent */ - 46, /* max_pft_size */ + 40, /* max_pft_size */ 1, /* splpar */ -1, /* min_load */ - 1, /* new_mem_def */ - 0, /* ignore_my_client_config */ + 0, /* new_mem_def */ + 1, /* ignore_my_client_config */ }; #define ROUNDUP(len) (((len) + 3) & ~3) unsigned char buf[512]; -unsigned char notebuf[512]; -#define GET_16BE(b, off) (((b)[off] << 8) + ((b)[(off)+1])) -#define GET_32BE(b, off) ((GET_16BE((b), (off)) << 16) + \ - GET_16BE((b), (off)+2)) +#define GET_16BE(off) ((buf[off] << 8) + (buf[(off)+1])) +#define GET_32BE(off) ((GET_16BE(off) << 16) + GET_16BE((off)+2)) -#define PUT_16BE(b, off, v) ((b)[off] = ((v) >> 8) & 0xff, \ - (b)[(off) + 1] = (v) & 0xff) -#define PUT_32BE(b, off, v) (PUT_16BE((b), (off), (v) >> 16), \ - PUT_16BE((b), (off) + 2, (v))) +#define PUT_16BE(off, v) (buf[off] = ((v) >> 8) & 0xff, \ + buf[(off) + 1] = (v) & 0xff) +#define PUT_32BE(off, v) (PUT_16BE((off), (v) >> 16), \ + PUT_16BE((off) + 2, (v))) /* Structure of an ELF file */ #define E_IDENT 0 /* ELF header */ @@ -95,95 +88,25 @@ unsigned char notebuf[512]; unsigned char elf_magic[4] = { 0x7f, 'E', 'L', 'F' }; -unsigned char *read_rpanote(const char *fname, int *nnp) -{ - int notefd, nr, i; - int ph, ps, np; - int note, notesize; - - notefd = open(fname, O_RDONLY); - if (notefd < 0) { - perror(fname); - exit(1); - } - nr = read(notefd, notebuf, sizeof(notebuf)); - if (nr < 0) { - perror("read note"); - exit(1); - } - if (nr == 0) /* empty file */ - return NULL; - if (nr < E_HSIZE || - memcmp(¬ebuf[E_IDENT+EI_MAGIC], elf_magic, 4) != 0 || - notebuf[E_IDENT+EI_CLASS] != ELFCLASS32 || - notebuf[E_IDENT+EI_DATA] != ELFDATA2MSB) - goto notelf; - close(notefd); - - /* now look for the RPA-note */ - ph = GET_32BE(notebuf, E_PHOFF); - ps = GET_16BE(notebuf, E_PHENTSIZE); - np = GET_16BE(notebuf, E_PHNUM); - if (ph < E_HSIZE || ps < PH_HSIZE || np < 1) - goto notelf; - - for (i = 0; i < np; ++i, ph += ps) { - if (GET_32BE(notebuf, ph + PH_TYPE) != PT_NOTE) - continue; - note = GET_32BE(notebuf, ph + PH_OFFSET); - notesize = GET_32BE(notebuf, ph + PH_FILESZ); - if (notesize < 34 || note + notesize > nr) - continue; - if (GET_32BE(notebuf, note) != strlen(rpaname) + 1 || - GET_32BE(notebuf, note + 8) != 0x12759999 || - strcmp((char *)¬ebuf[note + 12], rpaname) != 0) - continue; - /* looks like an RPA note, return it */ - *nnp = notesize; - return ¬ebuf[note]; - } - /* no RPA note found */ - return NULL; - - notelf: - fprintf(stderr, "%s is not a big-endian 32-bit ELF image\n", fname); - exit(1); -} - int main(int ac, char **av) { - int fd, n, i, ai; + int fd, n, i; int ph, ps, np; int nnote, nnote2, ns; - unsigned char *rpap; - char *p, *endp; - - ai = 1; - if (ac >= ai + 2 && strcmp(av[ai], "-r") == 0) { - /* process -r realbase */ - p = av[ai + 1]; - descr[1] = strtol(p, &endp, 16); - if (endp == p || *endp != 0) { - fprintf(stderr, "Can't parse -r argument '%s' as hex\n", - p); - exit(1); - } - ai += 2; - } - if (ac != ai + 1 && ac != ai + 2) { - fprintf(stderr, "Usage: %s [-r realbase] elf-file [rpanote.elf]\n", av[0]); + + if (ac != 2) { + fprintf(stderr, "Usage: %s elf-file\n", av[0]); exit(1); } - fd = open(av[ai], O_RDWR); + fd = open(av[1], O_RDWR); if (fd < 0) { - perror(av[ai]); + perror(av[1]); exit(1); } nnote = 12 + ROUNDUP(strlen(arch) + 1) + sizeof(descr); nnote2 = 12 + ROUNDUP(strlen(rpaname) + 1) + sizeof(rpanote); - rpap = NULL; n = read(fd, buf, sizeof(buf)); if (n < 0) { @@ -197,25 +120,22 @@ main(int ac, char **av) if (buf[E_IDENT+EI_CLASS] != ELFCLASS32 || buf[E_IDENT+EI_DATA] != ELFDATA2MSB) { fprintf(stderr, "%s is not a big-endian 32-bit ELF image\n", - av[ai]); + av[1]); exit(1); } - if (ac == ai + 2) - rpap = read_rpanote(av[ai + 1], &nnote2); - - ph = GET_32BE(buf, E_PHOFF); - ps = GET_16BE(buf, E_PHENTSIZE); - np = GET_16BE(buf, E_PHNUM); + ph = GET_32BE(E_PHOFF); + ps = GET_16BE(E_PHENTSIZE); + np = GET_16BE(E_PHNUM); if (ph < E_HSIZE || ps < PH_HSIZE || np < 1) goto notelf; if (ph + (np + 2) * ps + nnote + nnote2 > n) goto nospace; for (i = 0; i < np; ++i) { - if (GET_32BE(buf, ph + PH_TYPE) == PT_NOTE) { + if (GET_32BE(ph + PH_TYPE) == PT_NOTE) { fprintf(stderr, "%s already has a note entry\n", - av[ai]); + av[1]); exit(0); } ph += ps; @@ -228,42 +148,37 @@ main(int ac, char **av) /* fill in the program header entry */ ns = ph + 2 * ps; - PUT_32BE(buf, ph + PH_TYPE, PT_NOTE); - PUT_32BE(buf, ph + PH_OFFSET, ns); - PUT_32BE(buf, ph + PH_FILESZ, nnote); + PUT_32BE(ph + PH_TYPE, PT_NOTE); + PUT_32BE(ph + PH_OFFSET, ns); + PUT_32BE(ph + PH_FILESZ, nnote); /* fill in the note area we point to */ /* XXX we should probably make this a proper section */ - PUT_32BE(buf, ns, strlen(arch) + 1); - PUT_32BE(buf, ns + 4, N_DESCR * 4); - PUT_32BE(buf, ns + 8, 0x1275); + PUT_32BE(ns, strlen(arch) + 1); + PUT_32BE(ns + 4, N_DESCR * 4); + PUT_32BE(ns + 8, 0x1275); strcpy((char *) &buf[ns + 12], arch); ns += 12 + strlen(arch) + 1; for (i = 0; i < N_DESCR; ++i, ns += 4) - PUT_32BE(buf, ns, descr[i]); + PUT_32BE(ns, descr[i]); /* fill in the second program header entry and the RPA note area */ ph += ps; - PUT_32BE(buf, ph + PH_TYPE, PT_NOTE); - PUT_32BE(buf, ph + PH_OFFSET, ns); - PUT_32BE(buf, ph + PH_FILESZ, nnote2); + PUT_32BE(ph + PH_TYPE, PT_NOTE); + PUT_32BE(ph + PH_OFFSET, ns); + PUT_32BE(ph + PH_FILESZ, nnote2); /* fill in the note area we point to */ - if (rpap) { - /* RPA note supplied in file, just copy the whole thing over */ - memcpy(buf + ns, rpap, nnote2); - } else { - PUT_32BE(buf, ns, strlen(rpaname) + 1); - PUT_32BE(buf, ns + 4, sizeof(rpanote)); - PUT_32BE(buf, ns + 8, 0x12759999); - strcpy((char *) &buf[ns + 12], rpaname); - ns += 12 + ROUNDUP(strlen(rpaname) + 1); - for (i = 0; i < N_RPA_DESCR; ++i, ns += 4) - PUT_32BE(buf, ns, rpanote[i]); - } + PUT_32BE(ns, strlen(rpaname) + 1); + PUT_32BE(ns + 4, sizeof(rpanote)); + PUT_32BE(ns + 8, 0x12759999); + strcpy((char *) &buf[ns + 12], rpaname); + ns += 12 + ROUNDUP(strlen(rpaname) + 1); + for (i = 0; i < N_RPA_DESCR; ++i, ns += 4) + PUT_32BE(ns, rpanote[i]); /* Update the number of program headers */ - PUT_16BE(buf, E_PHNUM, np + 2); + PUT_16BE(E_PHNUM, np + 2); /* write back */ lseek(fd, (long) 0, SEEK_SET); @@ -273,18 +188,18 @@ main(int ac, char **av) exit(1); } if (i < n) { - fprintf(stderr, "%s: write truncated\n", av[ai]); + fprintf(stderr, "%s: write truncated\n", av[1]); exit(1); } exit(0); notelf: - fprintf(stderr, "%s does not appear to be an ELF file\n", av[ai]); + fprintf(stderr, "%s does not appear to be an ELF file\n", av[1]); exit(1); nospace: fprintf(stderr, "sorry, I can't find space in %s to put the note\n", - av[ai]); + av[1]); exit(1); } diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index f39073511a4..965c237c122 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -306,13 +306,8 @@ fi # post-processing needed for some platforms case "$platform" in -pseries) - ${CROSS}objcopy -O binary -j .fakeelf "$kernel" "$ofile".rpanote - $objbin/addnote "$ofile" "$ofile".rpanote - rm -r "$ofile".rpanote - ;; -chrp) - $objbin/addnote -r c00000 "$ofile" +pseries|chrp) + $objbin/addnote "$ofile" ;; coff) ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile" diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 23e0db20332..2445945d376 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -671,7 +671,7 @@ static struct fake_elf { u32 ignore_me; } rpadesc; } rpanote; -} fake_elf __section(.fakeelf) = { +} fake_elf = { .elfhdr = { .e_ident = { 0x7f, 'E', 'L', 'F', ELFCLASS32, ELFDATA2MSB, EV_CURRENT }, @@ -713,13 +713,13 @@ static struct fake_elf { .type = 0x12759999, .name = "IBM,RPA-Client-Config", .rpadesc = { - .lpar_affinity = 1, - .min_rmo_size = 128, /* in megabytes */ + .lpar_affinity = 0, + .min_rmo_size = 64, /* in megabytes */ .min_rmo_percent = 0, - .max_pft_size = 46, /* 2^46 bytes max PFT size */ + .max_pft_size = 48, /* 2^48 bytes max PFT size */ .splpar = 1, .min_load = ~0U, - .new_mem_def = 1 + .new_mem_def = 0 } } }; diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 384dca5a9c1..2412c056baa 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -205,9 +205,6 @@ SECTIONS } #endif - /* Fake ELF header containing RPA note; for addnote */ - .fakeelf : AT(ADDR(.fakeelf) - LOAD_OFFSET) { *(.fakeelf) } - /* freed after init ends here */ . = ALIGN(PAGE_SIZE); __init_end = .; |