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| author | Alexander Bulekov <alxndr@bu.edu> | 2021-03-15 10:05:10 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-03-16 14:30:30 -0400 |
| commit | 230376d285b38f5b83882ebdd2e0d0570431dd09 (patch) | |
| tree | ab179fb04da2c021b4e140879185a612c772db56 /MAINTAINERS | |
| parent | d7da0e560128e56f55a2f1f27fa66dd8c5db446c (diff) | |
| download | qemu-230376d285b38f5b83882ebdd2e0d0570431dd09.zip qemu-230376d285b38f5b83882ebdd2e0d0570431dd09.tar.gz qemu-230376d285b38f5b83882ebdd2e0d0570431dd09.tar.bz2 | |
memory: add a sparse memory device for fuzzing
For testing, it can be useful to simulate an enormous amount of memory
(e.g. 2^64 RAM). This adds an MMIO device that acts as sparse memory.
When something writes a nonzero value to a sparse-mem address, we
allocate a block of memory. For now, since the only user of this device
is the fuzzer, we do not track and free zeroed blocks. The device has a
very low priority (so it can be mapped beneath actual RAM, and virtual
device MMIO regions).
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'MAINTAINERS')
| -rw-r--r-- | MAINTAINERS | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 0bd720a..2a925e7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2636,6 +2636,7 @@ S: Maintained F: tests/qtest/fuzz/ F: tests/qtest/fuzz-*test.c F: scripts/oss-fuzz/ +F: hw/mem/sparse-mem.c F: docs/devel/fuzzing.rst Register API |