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| author |   Éric Piel <Eric.Piel@tremplin-utc.net> | 2008-02-05 00:04:50 +0100 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2008-02-06 22:07:51 -0500 |
| commit | 6ed31e92e94830c138fbd470486383380710069a (patch) | |
| tree | 76d74ac2cc7637fca6462727b273cf0c14e24da8 /drivers/acpi | |
| parent | ACPI: basic initramfs DSDT override support (diff) | |
| download | linux-dev-6ed31e92e94830c138fbd470486383380710069a.tar.xz linux-dev-6ed31e92e94830c138fbd470486383380710069a.zip | |
ACPI: Taint kernel on ACPI table override (format corrected)
When an ACPI table is overridden (for now this can happen only for DSDT)
display a big warning and taint the kernel with flag A.
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/osl.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 131936e7ff17..bbd8360bfb23 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -392,6 +392,13 @@ acpi_os_table_override(struct acpi_table_header * existing_table, *new_table = initrd_table; } #endif + if (*new_table != NULL) { + printk(KERN_WARNING PREFIX "Override [%4.4s-%8.8s], " + "this is unsafe: tainting kernel\n", + existing_table->signature, + existing_table->oem_table_id); + add_taint(TAINT_OVERRIDDEN_ACPI_TABLE); + } return AE_OK; } |