Reducing TBOOT_KERNEL_CMDLINE_SIZE to 256 bytes works. Moving
KERNEL_CMDLINE_OFFSET down to accommodate 1024 bytes also works; see
the patch I just posted.
The other patch I posted truncates the command line to the size of the
buffer in the real-mode boot header, to eliminate the possibility of
ov
256 bytes is awfully short, and 1024 matches the size of the temporary
buffer tboot uses to manipulate the command line.
Signed-off-by: Ed Swierk
---
tboot/common/linux.c| 4 ++--
tboot/include/linux_defns.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/tboot/com
Respect the size of the real-mode boot header when zeroing and copying
in the command line, to avoid stomping on the BIOS EBCA or risk BIOS
SMM code stomping on the command line.
Signed-off-by: Ed Swierk
---
tboot/common/linux.c | 17 ++---
1 file changed, 10 insertions(+), 7 deletio
Hi Ed,
Thanks for reporting this issue, we will root cause and fix the issue as soon
as we can.
As we do not have an Intel S2600GL machine at hand, to root cause completely
your issue, can you try this by modifying the config.h file and build the
tboot.gz:
//#define TBOOT_KERNEL_CMDLINE_SIZE
