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-Add kernel move patch for larger kernels
Former-commit-id: 44ffe7e3f171803e8a9052c683af7a4af5c1df60
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jbjohnso
parent
8cb6c1268c
commit
9447446bf9
118
yaboot/yaboot-1.3.14-move_kernel.patch
Normal file
118
yaboot/yaboot-1.3.14-move_kernel.patch
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@ -0,0 +1,118 @@
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diff --git a/Makefile b/Makefile
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index 8f2b1c4..3603c7d 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -121,6 +121,9 @@ mkofboot:
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false; \
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fi
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+%.i: %.c
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+ $(CC) $(YBCFLAGS) -E -o $@ $<
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+
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%.o: %.c
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$(CC) $(YBCFLAGS) -c -o $@ $<
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diff --git a/include/file.h b/include/file.h
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index b2d9c63..9990f4b 100644
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--- a/include/file.h
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+++ b/include/file.h
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@@ -68,6 +68,7 @@ struct boot_file_t {
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ino_t inode;
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__u64 pos;
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unsigned char* buffer;
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+ __u64 buffer_sz;
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__u64 len;
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// unsigned int dev_blk_size;
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// unsigned int part_start;
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diff --git a/second/fs_of.c b/second/fs_of.c
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index 1f48f4f..d2e7434 100644
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--- a/second/fs_of.c
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+++ b/second/fs_of.c
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@@ -214,6 +214,7 @@ of_net_open(struct boot_file_t* file,
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DEBUG_LEAVE(FILE_IOERR);
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return FILE_IOERR;
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}
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+ file->buffer_sz = LOAD_BUFFER_SIZE;
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memset(file->buffer, 0, LOAD_BUFFER_SIZE);
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DEBUG_F("TFP...\n");
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diff --git a/second/yaboot.c b/second/yaboot.c
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index 0ccfed5..1241eec 100644
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--- a/second/yaboot.c
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+++ b/second/yaboot.c
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@@ -1052,6 +1052,7 @@ yaboot_text_ui(void)
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static struct boot_param_t params;
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void *initrd_base;
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unsigned long initrd_size;
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+ unsigned long initrd_end;
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void *sysmap_base;
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unsigned long sysmap_size;
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kernel_entry_t kernel_entry;
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@@ -1227,8 +1228,67 @@ yaboot_text_ui(void)
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initrd_read = file.fs->read(&file, INITRD_CHUNKSIZE, initrd_more);
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DEBUG_F(" block at %p rc=%lu\n",initrd_more,initrd_read);
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initrd_size += initrd_read;
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+ initrd_end = initrd_more+INITRD_CHUNKSIZE;
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}
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}
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+ /* If we netbooted and got this far, we may have filled the
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+ * RMA. We're about the free the TFTP load buffer to we
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+ * can "shuffle" things around so that the booted kernel
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+ * has some memory to run with */
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+ if (!is_elf64(&loadinfo)) {
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+ DEBUG_F("Not running a 64-kernel\n");
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+ /* Is this check enough? */
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+ } else if (loadinfo.base == file.buffer + file.buffer_sz) {
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+ DEBUG_F("file->buffer %lx -> %lx (%lx)\n",
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+ (unsigned long)(file.buffer),
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+ (unsigned long)(file.buffer+file.buffer_sz),
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+ (unsigned long)(file.buffer_sz));
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+ DEBUG_F("vmlinux %lx -> %lx (%lx)\n",
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+ (unsigned long)(loadinfo.base),
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+ (unsigned long)(loadinfo.base+loadinfo.memsize),
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+ (unsigned long)(loadinfo.memsize));
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+ DEBUG_F("initrd %lx -> %lx (%lx)\n",
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+ (unsigned long)(initrd_base),
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+ (unsigned long)(initrd_base+initrd_size),
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+ (unsigned long)(initrd_size));
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+
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+ /* Check to see if we're near the top of the RMA */
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+ /* Cheat and assume the RMA == 128Mb */
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+ if (initrd_end > 0x7000000) {
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+ unsigned long new_initrd_end, free_len;
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+ unsigned long initrd_claim_len = initrd_end - (unsigned long)initrd_base;
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+
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+ memmove(file.buffer, loadinfo.base,
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+ loadinfo.memsize+initrd_size);
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+ loadinfo.base = file.buffer;
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+ initrd_base = loadinfo.base+loadinfo.memsize;
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+
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+ new_initrd_end = (unsigned long)initrd_base+initrd_claim_len;
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+ free_len = initrd_end - (unsigned long)new_initrd_end;
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+ file.buffer = NULL;
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+ file.buffer_sz = 0;
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+ memset((void*)new_initrd_end, 0x0, free_len);
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+ prom_release((void*)new_initrd_end, free_len);
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+
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+ DEBUG_F("Releaseing from 0x%08lx -> 0x%08lx\n",
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+ new_initrd_end, free_len);
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+
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+ DEBUG_F("file->buffer %lx -> %lx (%lx)\n",
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+ (unsigned long)(file.buffer),
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+ (unsigned long)(file.buffer+file.buffer_sz),
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+ (unsigned long)(file.buffer_sz));
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+ DEBUG_F("vmlinux %lx -> %lx (%lx)\n",
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+ (unsigned long)(loadinfo.base),
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+ (unsigned long)(loadinfo.base+loadinfo.memsize),
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+ (unsigned long)(loadinfo.memsize));
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+ DEBUG_F("initrd %lx -> %lx (%lx)\n",
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+ (unsigned long)(initrd_base),
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+ (unsigned long)(initrd_base+initrd_size),
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+ (unsigned long)(initrd_size));
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+ } else {
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+ DEBUG_F("Looks like we do not need to move the kernel\n");
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+ }
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+ }
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file.fs->close(&file);
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memset(&file, 0, sizeof(file));
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}
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@ -2,15 +2,17 @@
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%define ver 1.3.15
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Summary: yaboot binary for tftp server
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%define _binary_payload w9.bzdio
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Name: %{pkg}
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Version: %{ver}
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Release: 05122010
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Release: 05172010
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Group: System/Administration
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License: GPL2
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URL: http://yaboot.ozlabs.org/
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Source: yaboot-%{ver}-%{release}.tar.gz
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Source: yaboot-%{ver}-05122010.tar.gz
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Patch0: yaboot-skipmac.patch
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Patch1: yaboot-32bitbuild.patch
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Patch5: yaboot-1.3.14-move_kernel.patch
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BuildRoot: %{_tmppath}/%{pkg}-buildroot
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Prefix: %{_prefix}
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BuildArch: noarch
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@ -22,9 +24,10 @@ ppc nodes.
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%prep
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%{__rm} -rf %{buildroot}
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%setup -q -n yaboot-%{ver}-%{release}
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%setup -q -n yaboot-%{ver}-05122010
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%patch0 -p1
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%patch1 -p1
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%patch5 -p1
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%build
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