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1172 commits

Author SHA1 Message Date
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