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Turns out the ifuzz on powerpc did not ever properly work. This fixes
syz_kvm_setup_cpu$ppc64:
Enable the PAPR KVM capability (otherwise KVM_RUN fails right away).
Finish generated sequences with the software debug breakpoint as
there is no x86's "hlt" variant on POWER and otherwise KVM won't exit.
Add exception handlers, use the software debug breakpoint instruction
to trigger immediate exit from KVM with the only exception of
the decrementer interrupt handler (timer) to recharge the timer and
continue.
Define and use endianness selection flag (Big vs. Little endian).
Define the code generator similar to kvm_gen.cc which for now contains
2 simple tests and the decrementer interrupt handler code.
Add test cases to the executor so "bin/linux_ppc64le/syz-executor test"
can run some sensible tests. The tests copy 0xbadc0de around similar
to x86 and uses gpr[3] is a return value register (similar to EAX).
Signed-off-by: Alexey Kardashevskiy <aik@linux.ibm.com>
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At the moment only AMD64 is supported, change file names to emphasise
this.
Signed-off-by: Alexey Kardashevskiy <aik@linux.ibm.com>
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Fix all errors it points to.
The one in netlink_send_ext is concerning.
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Update the copyright checking script and more files
for the standard convention of marking auto-generated files.
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-Wunused-const-variable shows it.
No idea now if it should be used or not,
seems to be the same as kvm_asm32_paged_vm86.
So let's just remove it.
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Add new pseudo syscall syz_kvm_setup_cpu that setups VCPU into
interesting states for execution. KVM is too difficult to setup otherwise.
Lots of improvements possible, but this is a starting point.
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