Restore the interrupt masks on chainload or HV guest start. The
interrupt mask is not restored on the USB-C port used by the hypervisor.
This prevents an interrupt storm in the guest when the other USB-C port
is exposed to the guest. Both tps6598x share unfortunately an interrupt
line.
Signed-off-by: Janne Grunau <j@jannau.net>
Now keeps track of the requested MMIO maps in a DictRangeMap, which is
then flattened to HV page table updates.
TODO: HOOK/SYNC codepaths
Signed-off-by: Hector Martin <marcan@marcan.st>
This metaclass voodoo allows us to define register maps like this:
class SomeDevice(RegMap):
FOO = 0x0000, Register32
BAR = 0x0004, Register32
# Register array
BAZ = range(0x100, 0x200, 4), Register32
Signed-off-by: Hector Martin <marcan@marcan.st>
* Fix correctness issues (ranges could end up overlapping)
* Split ranges instead of merging them on overlap (previously a single
range overlapping everything would reduce the lookup to a linear
search over all ranges)
* Support removal and generic mutations by splitting out a generic
RangeMap class that can be used with arbitrary values/collections
Signed-off-by: Hector Martin <marcan@marcan.st>
The hanlder omits noise/useless of the mmio access and annotates
known offsets, pins, interrupts and config values.
Signed-off-by: Janne Grunau <j@jannau.net>
Read the MAC addresses from the ADT and store them in
"local-mac-address" properties on the relevant nodes in the FDT.
This relies on appropriate aliases in the provided FDT, which
matches how U-Boot provides MAC addresses on embedded targets.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
-m <script>
Run a script in hypervisor context prior to starting the guest.
This is essentially the same as the shell context.
-c <code>
Run a literal string of code prior to starting the guest.
-S
Start a shell instead of directly starting the guest. Use `start` to
actually begin guest execution.
This also adds a couple example scripts under hv/.
Signed-off-by: Hector Martin <marcan@marcan.st>
All the common/importable stuff now lives in the 'm1n1' module.
General use tools are in tools/
Reverse engineering experiments are in experiments/
Signed-off-by: Hector Martin <marcan@marcan.st>
This allows payloads to use DMA for anything that's not PCIe
even without a DART driver. It also restores the DART registers
the state the were left by iBoot.
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Change the way the shell finds methods to add to the locals on startup: the
methods are queried on the object’s class, rather than the object itself. This
allows detecting if an object’s member is a property and ignore it, rather than
accessing the property.
Attributes whose name starts by ‘_’ are also now ignored, which avoids
importing private methods or Python magic methods in the shell namespace.
Fixes spurious accesses to ProxyUtils’s SIMD properties (b, h, etc) on shell
startup, which caused a ProxyCommandError if m1n1 is not recent enough.
Signed-off-by: Vincent Duvert <vincent@duvert.net>
The development Mac OS kernel panics if the PMCR0 sysreg is in an
unexpected state. To avoid that the hypervisor needs to shadow the
interrupt mode and interrupt active flag after it mask the PM FIQ.
Mac OS reads and writes frequently from PMCR0 and PMC 0/1 so handling
in m1n1 is preferred over Python.
Signed-off-by: Janne Grunau <j@jannau.net>
