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| author | Borislav Petkov <borislav.petkov@amd.com> | 2011-01-17 15:03:26 +0300 |
|---|---|---|
| committer | Borislav Petkov <borislav.petkov@amd.com> | 2011-03-17 16:46:22 +0300 |
| commit | 355fba600549cfcfab227f928eab3ccae444ec8e (patch) | |
| tree | c1b5b554fabcefc656a27c630a2f184d2197692c /drivers/edac/amd64_edac.c | |
| parent | 614ec9d8532cc6b2f6b471c399daffdfd1c32d03 (diff) | |
| download | linux-355fba600549cfcfab227f928eab3ccae444ec8e.tar.xz | |
amd64_edac: Beef up early exit reporting
Add paranoid checks for the sys address before going off and decoding
it.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers/edac/amd64_edac.c')
| -rw-r--r-- | drivers/edac/amd64_edac.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 4bba43e7ee85..e4ad09110b96 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -1380,9 +1380,20 @@ static int f10_match_to_this_node(struct amd64_pvt *pvt, int range, debugf1("(range %d) SystemAddr= 0x%llx Limit=0x%llx\n", range, sys_addr, get_dram_limit(pvt, range)); + if (dhar_valid(pvt) && + dhar_base(pvt) <= sys_addr && + sys_addr < BIT_64(32)) { + amd64_warn("Huh? Address is in the MMIO hole: 0x%016llx\n", + sys_addr); + return -EINVAL; + } + if (intlv_en && - (intlv_sel != ((sys_addr >> 12) & intlv_en))) + (intlv_sel != ((sys_addr >> 12) & intlv_en))) { + amd64_warn("Botched intlv bits, en: 0x%x, sel: 0x%x\n", + intlv_en, intlv_sel); return -EINVAL; + } sys_addr = f10_swap_interleaved_region(pvt, sys_addr); |