vserver 2.0 rc7

[linux-2.6.git] / arch / ppc64 / boot / addnote.c

diff --git a/arch/ppc64/boot/addnote.c b/arch/ppc64/boot/addnote.c
index 66ff810..719663a 100644 (file)
--- a/arch/ppc64/boot/addnote.c
+++ b/arch/ppc64/boot/addnote.c
@@ -19,6 +19,7 @@
 #include <unistd.h>
 #include <string.h>
 
+/* CHRP note section */
 char arch[] = "PowerPC";
 
 #define N_DESCR        6
@@ -31,6 +32,29 @@ unsigned int descr[N_DESCR] = {
        0x4000,                 /* load-base */
 };
 
+/* RPA note section */
+char rpaname[] = "IBM,RPA-Client-Config";
+
+/*
+ * Note: setting ignore_my_client_config *should* mean that OF ignores
+ * all the other fields, but there is a firmware bug which means that
+ * it looks at the splpar field at least.  So these values need to be
+ * reasonable.
+ */
+#define N_RPA_DESCR    8
+unsigned int rpanote[N_RPA_DESCR] = {
+       0,                      /* lparaffinity */
+       64,                     /* min_rmo_size */
+       0,                      /* min_rmo_percent */
+       40,                     /* max_pft_size */
+       1,                      /* splpar */
+       -1,                     /* min_load */
+       0,                      /* new_mem_def */
+       1,                      /* ignore_my_client_config */
+};
+
+#define ROUNDUP(len)   (((len) + 3) & ~3)
+
 unsigned char buf[512];
 
 #define GET_16BE(off)  ((buf[off] << 8) + (buf[(off)+1]))
@@ -69,7 +93,7 @@ main(int ac, char **av)
 {
        int fd, n, i;
        int ph, ps, np;
-       int nnote, ns;
+       int nnote, nnote2, ns;
 
        if (ac != 2) {
                fprintf(stderr, "Usage: %s elf-file\n", av[0]);
@@ -81,7 +105,8 @@ main(int ac, char **av)
                exit(1);
        }
 
-       nnote = strlen(arch) + 1 + (N_DESCR + 3) * 4;
+       nnote = 12 + ROUNDUP(strlen(arch) + 1) + sizeof(descr);
+       nnote2 = 12 + ROUNDUP(strlen(rpaname) + 1) + sizeof(rpanote);
 
        n = read(fd, buf, sizeof(buf));
        if (n < 0) {
@@ -104,7 +129,7 @@ main(int ac, char **av)
        np = GET_16BE(E_PHNUM);
        if (ph < E_HSIZE || ps < PH_HSIZE || np < 1)
                goto notelf;
-       if (ph + (np + 1) * ps + nnote > n)
+       if (ph + (np + 2) * ps + nnote + nnote2 > n)
                goto nospace;
 
        for (i = 0; i < np; ++i) {
@@ -117,12 +142,12 @@ main(int ac, char **av)
        }
 
        /* XXX check that the area we want to use is all zeroes */
-       for (i = 0; i < ps + nnote; ++i)
+       for (i = 0; i < 2 * ps + nnote + nnote2; ++i)
                if (buf[ph + i] != 0)
                        goto nospace;
 
        /* fill in the program header entry */
-       ns = ph + ps;
+       ns = ph + 2 * ps;
        PUT_32BE(ph + PH_TYPE, PT_NOTE);
        PUT_32BE(ph + PH_OFFSET, ns);
        PUT_32BE(ph + PH_FILESZ, nnote);
@@ -134,11 +159,26 @@ main(int ac, char **av)
        PUT_32BE(ns + 8, 0x1275);
        strcpy(&buf[ns + 12], arch);
        ns += 12 + strlen(arch) + 1;
-       for (i = 0; i < N_DESCR; ++i)
-               PUT_32BE(ns + i * 4, descr[i]);
+       for (i = 0; i < N_DESCR; ++i, ns += 4)
+               PUT_32BE(ns, descr[i]);
+
+       /* fill in the second program header entry and the RPA note area */
+       ph += ps;
+       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 */
+       PUT_32BE(ns, strlen(rpaname) + 1);
+       PUT_32BE(ns + 4, sizeof(rpanote));
+       PUT_32BE(ns + 8, 0x12759999);
+       strcpy(&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(E_PHNUM, np + 1);
+       PUT_16BE(E_PHNUM, np + 2);
 
        /* write back */
        lseek(fd, (long) 0, SEEK_SET);
@@ -155,11 +195,11 @@ main(int ac, char **av)
        exit(0);
 
  notelf:
-       fprintf(stderr, "%s does not appear to be an ELF file\n", av[0]);
+       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[0]);
+               av[1]);
        exit(1);
 }