path: root/Documentation/kernel-parameters.txt
diff options
authorThomas Gleixner <tglx@linutronix.de>2017-02-15 11:11:50 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-26 11:10:52 +0100
commit2709c2a1b0165e7b4084077148697175ecd9d2c7 (patch)
treeec979c76052ca3f5c6a64e79ffbaf73f83c57952 /Documentation/kernel-parameters.txt
parentfef3fdf2d83cd0ca3bc0052ab58baab010929434 (diff)
x86/platform/goldfish: Prevent unconditional loading
commit 47512cfd0d7a8bd6ab71d01cd89fca19eb2093eb upstream. The goldfish platform code registers the platform device unconditionally which causes havoc in several ways if the goldfish_pdev_bus driver is enabled: - Access to the hardcoded physical memory region, which is either not available or contains stuff which is completely unrelated. - Prevents that the interrupt of the serial port can be requested - In case of a spurious interrupt it goes into a infinite loop in the interrupt handler of the pdev_bus driver (which needs to be fixed seperately). Add a 'goldfish' command line option to make the registration opt-in when the platform is compiled in. I'm seriously grumpy about this engineering trainwreck, which has seven SOBs from Intel developers for 50 lines of code. And none of them figured out that this is broken. Impressive fail! Fixes: ddd70cf93d78 ("goldfish: platform device for x86") Reported-by: Gabriel C <nix.or.die@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 922dec8fa07e..65b05ba6ef98 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1391,6 +1391,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
When zero, profiling data is discarded and associated
debugfs files are removed at module unload time.
+ goldfish [X86] Enable the goldfish android emulator platform.
+ Don't use this when you are not running on the
+ android emulator
gpt [EFI] Forces disk with valid GPT signature but
invalid Protective MBR to be treated as GPT. If the
primary GPT is corrupted, it enables the backup/alternate