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| author | ru <ru@FreeBSD.org> | 2006-11-02 17:28:38 +0000 |
|---|---|---|
| committer | ru <ru@FreeBSD.org> | 2006-11-02 17:28:38 +0000 |
| commit | 72eb46ae51bea2bdc5f1deb6728f9bdd26092ed5 (patch) | |
| tree | 34de91a0a0dd3ee661c12286a13ec25ee3a189de /sys/boot/common/load_elf.c | |
| parent | 42a69dcadeb2a9e395f7747f2d88a1ea76673757 (diff) | |
| download | FreeBSD-src-72eb46ae51bea2bdc5f1deb6728f9bdd26092ed5.zip FreeBSD-src-72eb46ae51bea2bdc5f1deb6728f9bdd26092ed5.tar.gz | |
Revert the last change. Masking only 2 MSBs of the virtual address
to get the physical address doesn't work for all values of KVA_PAGES,
while masking 8 MSBs works for all values of KVA_PAGES that are
multiple of 4 for non-PAE and 8 for PAE. (This leaves us limited
with 12MB for non-PAE kernels and 14MB for PAE kernels.)
To get things right, we'd need to subtract the KERNBASE from the
virtual address (but KERNBASE is not easy to figure out from here),
or have physical addresses set properly in the ELF headers.
Discussed with: jhb
Diffstat (limited to 'sys/boot/common/load_elf.c')
| -rw-r--r-- | sys/boot/common/load_elf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/boot/common/load_elf.c b/sys/boot/common/load_elf.c index be8f881..cd983a9 100644 --- a/sys/boot/common/load_elf.c +++ b/sys/boot/common/load_elf.c @@ -263,7 +263,7 @@ __elfN(loadimage)(struct preloaded_file *fp, elf_file_t ef, u_int64_t off) #if __ELF_WORD_SIZE == 64 off = - (off & 0xffffffffff000000ull);/* x86_64 relocates after locore */ #else - off = - (off & 0xc0000000u); /* i386 relocates after locore */ + off = - (off & 0xff000000u); /* i386 relocates after locore */ #endif #else off = 0; /* other archs use direct mapped kernels */ |
