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330 commits

Author SHA1 Message Date
Hector Martin
5f7aded3ce find_sprr_regs.py: Port to find_regs.py, fixes 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-22 04:42:38 +09:00
Hector Martin
30e14f1a0b find_regs: Modular version of find_all_regs.py 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-22 03:21:01 +09:00
Hector Martin
d82f5db064 apple_regs.json: Add CNTPCT_ALIAS_EL0 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-22 03:21:01 +09:00
Hector Martin
81793508ae proxyutils.py: Use sysreg_parse() for mrs/msr 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-22 03:21:01 +09:00
Hector Martin
91a94992ea proxyutils.py: Improve the various exec() modes 
Now we can just say call="el1" etc., and it takes care of the region for
you.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-22 03:21:01 +09:00
Hector Martin
d0995e0653 proxyutils: Make GuardedHeap able to take a single Heap argument 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-22 03:21:01 +09:00
Hector Martin
7bdff8ad10 sysreg.py: Add sysreg_parse() function 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-22 03:21:01 +09:00
Mark Kettenis
e23e89849f proxy: linux.py: fix tty initialization 
commit 35fddd51 broke loading a kernel without explitly specifying
a tty.  Fix this.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
 2021-05-16 18:47:00 +09:00
Hector Martin
957bf40d20 proxy.py: Add debug for rx events 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-16 18:46:35 +09:00
Sven Peter
35fddd5117 proxy: linux.py: allow to load u-boot before Linux 
right now u-boot can bring up the PCIe bus such that Linux only requires
a very minimal driver. this new --u-boot flag for linux.py allows to
load u-boot before the Linux kernel to make use of this.
This requires a small hack to inject the booti command into the default
u-boot boot environment.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-05-16 02:45:46 +09:00
Hector Martin
3283987ba9 proxy.py: Fix spurious garbage printed to TTY 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-16 00:04:33 +09:00
Hector Martin
afc088840d hv: Add Python-side MMIO emulation hooks 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-15 23:57:48 +09:00
Hector Martin
323b02ce1d hv: Implement basic MMIO tracing to Python 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-15 23:57:48 +09:00
Janne Grunau
a742f05532 usb/hv: add second CDC ACM interface for virtualized UART 
Signed-off-by: Janne Grunau <j@jannau.net>
 2021-05-15 19:47:08 +09:00
Sven Peter
4a893dc57a apple_regs: document more SPRR regs 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-05-15 16:38:45 +09:00
Hector Martin
87ae3a91fd hv.py: Nuke all the PCIe/TB nodes for the hypervisor Type C port 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-15 01:39:54 +09:00
Hector Martin
e9aa876d12 Add missing xnutools.py 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 22:46:07 +09:00
Hector Martin
11fb2a403b adt.py: Unbork reg parsing, fix some stuff 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 22:44:50 +09:00
Hector Martin
7358e79d74 hv.py: Support pointer auth correctly 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 21:28:52 +09:00
Hector Martin
11ef3bb461 proxyutils.py: Allow mrs/msr to pass region (for EL1 etc) 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 20:10:51 +09:00
Hector Martin
757213b7a9 apple_regs.json: Add some EL1 registers for AP 
Still not sure how to enable APSTS_EL12...

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 20:10:34 +09:00
Hector Martin
98839afab0 proxyutils.py: Use keyword-only arguments for msr/msr/inst 
So I stop writing mrs(sysreg, value)...

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 19:02:57 +09:00
Hector Martin
aebda5213a hv.py: Now gets pretty far into XNU boot 
Next up: mmiotrace

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 19:02:35 +09:00
Hector Martin
495732ef6a proxyutils.py: Fix returning from ad-hoc code 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 18:16:13 +09:00
Hector Martin
7fb35a8533 proxyutils.py: Call ad-hoc code in RX EL1 region 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-13 18:15:35 +09:00
Hector Martin
4a918346a8 shell.py: Add only callables to locals, but also sysregs 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:21:39 +09:00
Hector Martin
4d75ff90ff proxyutils.py: Support Apple impdef MSR trap decoding 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:21:09 +09:00
Hector Martin
f56318abc9 hacr_trap_bits.py: Look at ARM standard-but-not regs too 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:20:51 +09:00
Hector Martin
9268f83f9f sysreg.py: Define bitfields for more Apple regs 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:20:06 +09:00
Hector Martin
5bea278509 sysreg.py: Add sysreg_name() helper 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:19:50 +09:00
Hector Martin
a519af2ca8 proxyutils.py: Add support for symbolizing addresses 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:19:19 +09:00
Hector Martin
90872f460e macho.py: Support loading and importing symbol files 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:18:12 +09:00
Hector Martin
db9acba268 utils.py: Register: Initialize to 0 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:17:38 +09:00
Hector Martin
51bafa3c3f proxyutils.py: Fix silent arg for mrs/msr 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:17:09 +09:00
Hector Martin
ec5388d6b5 chainload.py: Support SMP when loading XNU 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:16:33 +09:00
Hector Martin
4e545d0513 adt.py: Improve parsing of reg/ranges & add resolver 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-12 21:16:15 +09:00
Sven Peter
e58c264a07 gxf: add SPRR/GXF proxyclient experiments 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-05-11 15:48:40 +09:00
Sven Peter
34123e33d8 proxyutils: added GuardedHeap 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-05-11 15:48:40 +09:00
Sven Peter
1c604a77c5 gxf: add support for guarded exception levels 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-05-11 15:48:40 +09:00
Sven Peter
2c5b202c99 sysreg: add support for Apple's custom sysregs 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-05-11 15:48:40 +09:00
Sven Peter
9120cb8426 memory: allow to reinit and temporarily disable the MMU 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-05-11 15:48:40 +09:00
Hector Martin
9a7a5c86a5 hv.py: Map only from guest base to RAM top to guest 
This keeps the hypervisor safe, in theory.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
a6287ae68d proxy.py: Add defaults to hv_translate flag args 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
19415bd6a5 run_guest.py: Support setting boot_args 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
3fecf181f9 proxyutils.py: Only decode abort/msr info for SYNC exceptions 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
9bfe278f52 proxyutils.py: Add disassemble_at() method 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
e3d7e569dc sysreg.py: Define an impdef EC code that Apple seems to use 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
6ad3b263a1 macho.py: Add support for loaded section hooks for patching 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
ed32cf6328 hv_exc: Add a hacky STEP feature to interrupt guest after a while 
This should eventually be a proper single step feature or something, but
for now...

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
aadf54d86f proxy.py: Add missing FB defines 
Also fix some calls

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-09 03:25:51 +09:00
Hector Martin
f58a9774d2 hv.py: Shut down fb before entering guest 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-08 03:43:59 +09:00
Hector Martin
0203aa6d3d proxy: Add framebuffer ops 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-08 03:42:21 +09:00
Hector Martin
8a8a004d48 hv.py: Correctly declare BootArgs in ADT memory map 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-08 02:40:57 +09:00
Hector Martin
530069bbfa proxyutils.py: Switch to gzip compression for writemem_compressed 
lzma is too slow, not worth the gain now that we have USB.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-08 02:40:13 +09:00
Hector Martin
36a6c9de3e proxy.py: Correctly indicate USB reconnection timeout 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-08 02:39:56 +09:00
Hector Martin
adb91b4374 chainload.py: Add support for setting boot-args 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-08 02:39:32 +09:00
Hector Martin
c6965acc75 adt.py: Fix typo 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-06 23:36:29 +09:00
Hector Martin
f1cc65f6c0 chainload.py: Set up SEPFW address in ADT 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-06 03:33:35 +09:00
Hector Martin
bbbea9db34 proxyutils: Disable serial timeout for writemem_compressed 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-06 03:32:39 +09:00
Hector Martin
0ae3455d51 hv_vuart: World's stupidest virtual UART implementation 
Work in progress...

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 04:03:44 +09:00
Hector Martin
9407dba2e0 hv_vm: Initial data abort handling 
Supports software-mapping for a subset of ldr/str instructions.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 04:03:44 +09:00
Hector Martin
8a64441bcd hv_vm: Extend hv_translate() for stage1 and write modes 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 03:27:19 +09:00
Hector Martin
27af846aae hv_vm.c: Move SPTE_TYPE to bit 50 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 03:23:04 +09:00
Hector Martin
76b690e767 hv.py: Make ^D exit the hypervisor, not cont 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 00:46:53 +09:00
Hector Martin
4b3f527de9 proxyutils: Disassemble faulting code on exceptions 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 00:46:48 +09:00
Hector Martin
652c7e27a1 proxyutils.py: u.inst -> u.exec and support assembly 
Also refactor mrs/msr in terms of u.exec.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 00:28:39 +09:00
Hector Martin
50f112c396 hv: Add support for address translation & abort decoding 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 00:28:39 +09:00
Hector Martin
a3440f2b48 hv: Support cleanly exiting the hypervisor from an exception 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-05 00:28:39 +09:00
Hector Martin
5ad0bdf994 sysreg: Fix ESR_ISS_MSR.CRm field bounds 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 23:01:55 +09:00
Hector Martin
78895edf2c hv.py: Properly copy ADT and TrustCache into guest region 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 22:57:08 +09:00
Hector Martin
954408cc65 chainload: Support old-school call based chainloading 
This is useful in the middle of the HV exception handler to reboot m1n1
entirely, since we can't do a clean exit the way we would for normal
chainloading.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 22:56:47 +09:00
Hector Martin
826bdb709c sysreg.py: Correct SPSR definition for AArch64 mode 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 20:05:54 +09:00
Hector Martin
4d64c33ca6 hv: Implement basic exception handling 
Allows Python to handle hypervisor exceptions, and implements exception
info display and basic debug commands.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 19:36:23 +09:00
Hector Martin
b015dcf272 shell.py: Make usable as a module 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 19:35:19 +09:00
Hector Martin
315fcf36aa uartproxy: Add support for nested invocations 
This allows the proxy to call back to Python for handling exceptions or
other events, passing reason information about why it was invoked and
returning normally when the exception has been handled.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 19:34:08 +09:00
Hector Martin
38b716c33c hv.py: Do not fail if ADT was already mutated 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 19:32:18 +09:00
Hector Martin
23c723003f sysreg.py: Move sysreg definitions here from proxyutils 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 19:31:41 +09:00
Hector Martin
35d564801a utils.py: Add Register class to handle register fields 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 19:26:41 +09:00
Hector Martin
2df4654555 hv.py: Disable secondary CPUs for now 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-04 01:52:58 +09:00
Hector Martin
948e507031 hv: Update ADT to fix SEPFW address and disable HV USB 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-03 21:30:30 +09:00
Hector Martin
9584e7d312 uartproxy: Add IODEV_WHOAMI feature to get current iodev 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-03 21:19:35 +09:00
Hector Martin
a3e50e8f44 proxy.py: Use the enum module for GUARD_/USAGE_/IODEV_ 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-03 21:19:35 +09:00
Hector Martin
ec9221cf32 adt.py: Support serializing back to binary ADT 
This should losslessly round-trip

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-03 21:19:15 +09:00
Hector Martin
7d18e8afb9 hv.py: Add missing file 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-03 21:18:57 +09:00
Hector Martin
1ae60ad715 hv: Beginnings of a hypervisor 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 19:21:33 +09:00
Hector Martin
4547773edf setup.py: Remove unnecessary imports 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 19:04:01 +09:00
Hector Martin
63366e43d2 proxy.py: Fix typo 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 19:03:46 +09:00
Hector Martin
5fdeb1c3e3 chainload.py: Remove useless import 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 19:03:21 +09:00
Hector Martin
8b1ea3f04d proxyutils: Make heap size configurable 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 19:02:25 +09:00
Hector Martin
2a1a04ea0d setup.py: Move baudrate auto setup to proxyutils 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 19:02:20 +09:00
Hector Martin
7c2dace0b0 chainload.py: Cleanup, move Mach-O loader to macho.py 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 15:16:02 +09:00
Hector Martin
a489a646bd Add tools for ARM sysreg database management 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 15:14:35 +09:00
Hector Martin
7bb490eb58 utils.py: New file for misc util functions (non proxy) 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 15:13:29 +09:00
Hector Martin
aaf4b2785b Rename utils.py -> proxyutils.py 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-05-01 15:13:06 +09:00
Hector Martin
fcd103b2a4 proxy.py: Reopen port on reboot if necessary 
This is needed for USB mode, as the device re-enumerates after a reboot.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-27 19:49:59 +09:00
Hector Martin
80f73926e8 proxy.py: Move M1N1DEVICE/UART port open logic into UartInterface 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-27 19:49:59 +09:00
Jean-Francois Bortolotti
82978081f8 chainload.py: Fix el1 support 
Signed-off-by: Jean-Francois Bortolotti <jeff@borto.fr>
 2021-04-18 02:29:32 +09:00
Hector Martin
f6297437c0 linux.py: Allow specifying a separate TTY device 
This allows e.g. opening a TTY on the UART serial device after
booting the kernel via USB.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-17 18:12:59 +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
88e1612c09 uartproxy: s/CRCERR/CSUMERR/ and actually use it 
It's not a CRC.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-17 16:25:48 +09:00
Hector Martin
8104ec02c4 iodev: Add proxy ops 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-15 23:18:57 +09:00
Hector Martin
ce79483165 proxy: Add support for passing buffer/string values to reqs 
This only works if the utils class has been instantiated, which is a bit
of a hack.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-15 23:18:57 +09:00
Hector Martin
f8c1c65cf9 Revert "proxy: add fb console console ops" 
This reverts commit de0456b9a5.

These ops become redundant with the new iodev control op.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-15 23:18:57 +09:00
Sven Peter
35007b700e proxy: add dart ops 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-04-15 01:36:29 +09:00
Hector Martin
6d87b3b016 chainload.py: Improve chainloading 
- Support chainload-in-place
- Do Mach-O loading host-side
- Handle copying SEPFW (WIP, ADT not updated yet)

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-14 21:13:19 +09:00
Hector Martin
b40fffea20 adt.py: Add basic ADT parser 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-14 21:12:38 +09:00
Sven Peter
de0456b9a5 proxy: add fb console console ops 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-04-14 18:11:37 +09:00
Hector Martin
0df6db324b timer_test.py: More exhaustive tests 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-14 17:48:02 +09:00
Hector Martin
f30e91b933 asm.py: Build for ARMv8.2-A 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-04-14 17:48:01 +09:00
Sven Peter
1314a426e2 proxyclient: add PMGR ops 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-04-11 05:26:29 +09:00
Sven Peter
f17a15d19a proxyclient/i2c: experiment with the i2c and ti usb chip 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-04-09 14:47:22 +09:00
Sven Peter
8aa3c69a2d tunables: add tunables_apply_local_addr 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-04-08 20:32:12 +09:00
Sven Peter
a17e64f1e2 tunables: add proxy ops 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-04-08 20:32:12 +09:00
Sven Peter
ed72fe443c proxyclient/asm.py: allow to override compiler prefix 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-04-05 23:49:25 +09:00
Hector Martin
3a42f80a73 chainload.py: Set up sane EL1 config for timers/IRQs 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-28 19:31:14 +09:00
Hector Martin
70f6bc7514 linux.py: support up to 512MB kernels 
Some people apparently have the patience to load KASAN kernels over
serial :-)

Also bump the python-managed heap to 1GB.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-08 01:33:43 +09:00
Hector Martin
3c514e826c fptest.py: test Apple floating-point controls 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-04 23:22:41 +09:00
Hector Martin
db49cc92f3 hacr_trap_bits.py: figure out HACR_EL2 sysreg traps 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-04 23:20:50 +09:00
Hector Martin
1a880518b0 chainload.py: implement chainloading at EL1 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-04 22:41:06 +09:00
Hector Martin
3bf3613e7d find_all_regs: print EL2-only registers 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-04 22:40:25 +09:00
Hector Martin
b8349819fe Implement calling code as EL1 
This works by clearing HCR_EL2.TGE, and then doing essentially the same
thunk/return dance as for EL0 calls. However, since most EL1 exceptions
are not routed to EL2, we install hypercall vectors in EL1 to forward
them to EL2, and then short circuit the exception return to whatever
triggered the original exception.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-04 22:10:37 +09:00
Hector Martin
acf1198fbb timer_test.py: add test of HV/guest timers 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-01 01:47:42 +09:00
Hector Martin
0f2be2c0ee utils.py: unbork inst() 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-03-01 01:45:39 +09:00
Hector Martin
2f959f758c find_all_regs.py: show EL0-accessible registers 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-25 00:33:00 +09:00
Hector Martin
d918b066b6 utils.py: add silent and call arguments to msr/mrs 
call allows the caller to override the function used for the function
call, e.g. to use EL0.

Use silent=True for find_all_regs.py

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-25 00:30:58 +09:00
Hector Martin
3872b1a7da exception: implement el0_call to run code as EL0 
This lets us test register access and other features from EL0.

No serious attempt at security is made, but at least EL0 runs off of a
separate stack and can return to EL2 at any time with `brk`; we can
easily implement a guard mode to break straight to EL2 on exception
later if needed.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-24 21:48:12 +09:00
Hector Martin
73a85be2b8 memory: prepare for EL0 support 
Enable EL0 access to MMIO/etc, but not main RAM, because AArch64
architecturally enforces EL0w ^ EL2x.

Instead, create an alias of main RAM to grant EL0 full permissions,
at 0x80_0000_0000.

Grant EL0 full access to MMIO stuff, since EL2 will never execute
from there.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-24 21:48:12 +09:00
Hector Martin
a0960fca81 find_all_regs.py: test writability 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-24 21:48:12 +09:00
Hector Martin
65824016b7 utils.py add silent argument to inst() 2021-02-24 19:01:17 +09:00
Hector Martin
64306e78a0 linux.py: only mask DAIF.IF 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-21 11:55:54 +09:00
Sven Peter
54a147013f chainload.py: compress payload to improve loading time 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-02-20 01:29:46 +09:00
Sven Peter
fa02cc9602 utils.py: add compressed writemem 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-02-20 01:29:46 +09:00
Hector Martin
b7d30250b2 utils: allow inst() to return r0 and take args 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-19 03:25:28 +09:00
Sven Peter
870fead39c proxyclient: add ops for writeread{8,16,32,64} 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-02-18 16:12:28 +09:00
Khoa Hoang
2789b6f3e0 proxyclient: add input support for tty mode 
Use miniterm from pyserial for tty passthrough mode

Signed-off-by: Khoa Hoang <admin@khoahoang.com>
 2021-02-13 02:48:58 +09:00
Hector Martin
207767472b Add find_all_regs.py (brute-force system regs) 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-11 00:56:19 +09:00
Hector Martin
063b9a1d27 exception: Add GUARD_SILENT feature to suppress logs 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-11 00:55:59 +09:00
Hector Martin
c1b9ef89b5 utils.py: guard mrs/msr/etc 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-11 00:55:59 +09:00
Hector Martin
7d3dd54441 utils.py: replace manual reg list with a full dump 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-11 00:55:59 +09:00
Hector Martin
ec59b0d2c7 chainload: do proper Mach-O parsing 
This is required for payloads to work properly

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-06 16:44:10 +09:00
Hector Martin
d12ac86448 utils.py: add more timer registers 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-06 16:44:10 +09:00
Hector Martin
1bb05d056f linux.py: Fix and simplify argument count handling 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-06 16:44:10 +09:00
Janne Grunau
57c4ddd00d linux.py: add support for setting boot arguments 
Signed-off-by: Janne Grunau <j@jannau.net>
 2021-02-06 12:16:04 +09:00
Janne Grunau
214173ba51 linux.py: support xz compressed payload 
3 second faster load and uncompress time for small kernel
(5.6M uncompressed, 2.1M gz and 1.6M xz). Compression method is
autodetect by the filename suffix or can be set by the '--compression'
command line option.
Also supports uncompressed payloads (no auto detection).

Signed-off-by: Janne Grunau <j@jannau.net>
 2021-02-06 12:16:04 +09:00
Janne Grunau
128368751c linux.py: use argparse and pathlib 
Signed-off-by: Janne Grunau <j@jannau.net>
 2021-02-06 12:16:04 +09:00
Witold Baryluk
62db38ae91 Fix #! and exec bits for scripts 
Signed-off-by: Witold Baryluk <witold.baryluk@gmail.com>
 2021-02-06 12:01:15 +09:00
Hector Martin
5970824491 utils.py: add more ID registers 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-05 02:58:08 +09:00
Hector Martin
19f915b779 aic_test.py: more experiments 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-05 02:58:08 +09:00
Hector Martin
60665a2ee2 linux.py: spin up secondaries 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-05 02:58:08 +09:00
Iris Johnson
7fc52bc799 Fix broken hexdumps in proxy.py 
Proxy.py has a few typos that appear if you try to use debug mode and dump a region of memory. This should fix those.

Signed-off-by: Iris Johnson <iris@modwiz.com>
 2021-02-05 02:57:36 +09:00
Hector Martin
4c999733da setup.py: restore timeout properly after the baudrate guesswork 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-03 04:52:17 +09:00
Hector Martin
053f2edbc3 proxyclient: handle baud rate switching properly for non-Glasgow UARTs 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-02-03 03:51:41 +09:00
Hector Martin
f247643fe6 chainload.py: shut down mmu and flush caches when chainloading 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 22:00:00 +09:00
Hector Martin
6dde40b05c exception: introduce recovery from synchronous exceptions 
Use this to recover from address faults in the proxy. Also print out L2
subsystem fault info.

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
Hector Martin
33d6c311ad malloc.py: fix memalign 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 01:37:09 +09:00
Hector Martin
352c6945d1 chickens.py: fix some brokenness 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 01:37:09 +09:00
Hector Martin
986c6730e9 Add heapblock and dlmalloc for managing memory 
heapblock is a simple `sbrk` style implementation, also useful as an
"endless" decompression buffer. dlmalloc is used on top as a malloc
implementation.

This also changes how the Python side manages its heap. We still use a
python-side malloc implementation (since this is faster), and we put the
Python heap at the m1n1 heap + 128MB, without allocating it.
Hopefully this should never step on anything m1n1 neads, and avoids
having to manage freeing across Python script calls.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-29 16:25:15 +09:00
Hector Martin
f3d0a58f42 proxy: add mmu_shutdown call, use it for linux.py 
I saw at least one SError crash on Linux after doing this, but can't
repro; unclear if related to the MMU changes or not...

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-29 00:36:46 +09:00
Hector Martin
c3c6e4e8f9 smp: add scaffolding and proxy funcs for cross-CPU calls 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-29 00:36:46 +09:00
Hector Martin
08763968ac malloc.py: add memalign 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-28 16:06:12 +09:00
Hector Martin
d0d691524c chickens.py: disable unnecessary stuff 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-25 19:11:42 +09:00
Hector Martin
fc6163c8d2 linux.py: add simple Linux loader 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-25 17:24:29 +09:00
Hector Martin
2647df774d chickens.py: chickenbits/tunables test code 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-25 17:24:29 +09:00
Hector Martin
c648a517e3 memdump.py: add simple memory dumper 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:43:21 +09:00
Hector Martin
e5caf91d79 utils: add u.inst() to run arbitrary instructions 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:43:21 +09:00
Hector Martin
99fb647a9b utils.py: add more ARM registers 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:43:19 +09:00
Hector Martin
7b53b0ae9c shell.py: remove missing unused import 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:43:18 +09:00
Hector Martin
644ab28e32 setup.py: fb is the framebuffer 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:43:16 +09:00
Hector Martin
e1f0be37b4 proxy.py: add a ttymode() call to switch to a dump terminal print 
TODO: implement input

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:43:14 +09:00
Hector Martin
674a82a2bb aic_test: UART IRQ testing stuff 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:42:59 +09:00
Hector Martin
63319ed348 utils: implement udelay() 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:42:25 +09:00
Hector Martin
cfe597e447 proxy: introduce reboot() as distinct from vector() 
vector() does not expect a reply, reboot() expects a hello reply.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:42:25 +09:00
Hector Martin
ee12d053a9 proxy: add XZ and GZ decompression functions and code 
This embeds tinf and minlzma.

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-23 22:42:23 +09:00
Hector Martin
74d3575369 proxyclient: Add aic_test 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-17 00:50:50 +09:00
Hector Martin
397bfa17c6 proxyclient: new asm/malloc/utils, clean up 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-17 00:50:34 +09:00
Hector Martin
81aaf2ed35 Basic exceptions, irq, cache mgmt support 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-17 00:49:22 +09:00
Ferdinand Bachmann
b02d70730a proxyclient: fix mask commands accidently sending clear opcode instead 
Signed-off-by: Ferdinand Bachmann <theferdi265@gmail.com>
 2021-01-16 02:48:48 +09:00
Hector Martin
d2fa0c9db9 README: add missing close angle bracket 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-15 13:04:14 +09:00
Hector Martin
bd19584743 proxyclient: initial files 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-15 04:04:12 +09:00