Commit graph

14 commits

Author SHA1 Message Date
Hector Martin
a21e46031e kboot: Only initialize PCIe when booting a kernel payload
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-05-28 00:04:52 +09:00
Hector Martin
95542a4619 kboot: Handle missing CPUs properly
This is necessary to boot Linux in UP mode if we're in EL1 and the HV
does not support SMP yet.

Signed-off-by: Hector Martin <marcan@marcan.st>
2021-05-04 01:52:58 +09:00
Hector Martin
26c4ab3888 formatting: Sort main include first
clang-format is supposed to do this, but for some reason it's "sticky"
and doesn't...

Signed-off-by: Hector Martin <marcan@marcan.st>
2021-05-01 18:31:58 +09:00
Hector Martin
45a0054f63 Add build-time printf() argument checking and fix warnings
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-05-01 18:23:44 +09:00
Hector Martin
7dfe24ee2c Rework kboot/chainload flow to shut down before calling the next stage
Next stage boots now exit back to main() after replying to the proxy
command, allowing shutdown functions to be called. Introduces a new
P_VECTOR proxy op, distinct from P_CALL. The Python side is reworked
to remain compatible with older versions that do not support this.

Signed-off-by: Hector Martin <marcan@marcan.st>
2021-04-17 18:12:59 +09:00
Hector Martin
35f2b2435e kboot: reserve m1n1 in memory
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-03-15 02:26:13 +09:00
Hector Martin
efa4452a47 Fix libc header dependencies
Turns out we had a bunch of silly dependencies on libc headers that are
not included with freestanding compilers. Fix all this and change the
CFLAGS to exclude libc headers and only include the built-in compiler
path.

Add our own versions of assert.h, errno.h, limits.h, and move malloc.h
and string.h together into a new path used as -isystem, so these headers
can be included using #include <>.

Remove a bunch of other dependencies in third-party code.

Add a strnlen function.

Disable building the libfdt overlay code for now, as it needs a strtoul
implementation. We can throw that in if/when we decide to use overlays.

Signed-off-by: Hector Martin <marcan@marcan.st>
2021-03-08 01:31:14 +09:00
Hector Martin
d5acb000f2 kboot: add support for KASLR and bootloader randomness
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-03-04 19:47:39 +09:00
Hector Martin
eab71ee92b fb, kboot: handle Retina flag correctly
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-02-06 22:27:45 +09:00
Hector Martin
5e5627cd0b clang-format: Add include block configs, reformat
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-02-06 16:44:10 +09:00
Hector Martin
8691fcee8a kboot: fix fb debug print
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-02-05 03:49:20 +09:00
Hector Martin
234a511e35 kboot: add spin-table and SMP support
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-02-05 02:58:08 +09:00
Hector Martin
040cb9d6fd exception: enable SError
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 22:00:00 +09:00
Hector Martin
74307af0df kboot: add proper kernel boot & DT manipulation code
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00