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Split out deprecated descriptions from socket_netlink_route_sched.txt.
Adjust outdated descriptions.
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We have a bunch of hacks in syz-extract, syz-sysgen and syz-check
with respect to description files unsupported on some arches,
or that must not be part of make extract.
Add 2 meta attribtues to files:
meta noextract
Tells `make extract` to not extract constants for this file.
Though, `syz-extract` can still be invoked manually on this file.
meta arches["arch1", "arch2"]
Restricts this file only to the given set of architectures.
`make extract` and ``make generate` will not use it on other architectures.
Later we can potentially use meta attributes to specify git tree/commit
that must be used for extraction. Maybe something else.
Fixes #2754
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Syzkaller runs KVM until it exits and this is considered the end of
the KVM_RUN syscall. We can do a bit more with a VM if the exit was
legit (for example MMIO access or a hypercall). In such cases
the userspace emulates the request and stores the result in
the kvm_run struct (mmaped from vcpu_fd) which the next KVM_RUN
checks.
This defines specialized mmap and syz_memcpy_off to allow Syzkaller
fuzz the kvm_run struct with focus on the part where the huge union is.
Signed-off-by: Alexey Kardashevskiy <aik@linux.ibm.com>
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Changes:
v4:
* defined offset/size constants
* re-autogenerated dev_kvm.txt.const
v3:
* fixed syz_memcpy_off's src size
v2:
* limited changes to dev_kvm.txt instead of defining all new
syz_kvm_run.
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Add missing VM/CPU caps and specify type of arguments for each cap.
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We don't support # comments at the end of defines.
This never worked and .const file wasn't even re-generated
(otherwise it would contain ???).
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Regenerate consts on upstream 585e5b17b92dead8a3aca4e3c9876fbca5f7e0ba.
Fix vmw_vmci.txt const extraction.
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This reduces number of const files/lines from 1288/96599 to 158/11603.
Const files are generated on next-20200813.
Update #1983
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