Merge tag 'pr-2023-02-16' of https://gitlab.com/a1xndr/qemu into staging

Replace fork-based fuzzing with reboots.
Now the fuzzers will reboot the guest between inputs.

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# gpg: Signature made Fri 17 Feb 2023 04:04:10 GMT
# gpg:                using RSA key FAD4E2BF871375D6340517C44E661DDE583A964E
# gpg: Good signature from "Alexander Bulekov <alxndr@bu.edu>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FAD4 E2BF 8713 75D6 3405  17C4 4E66 1DDE 583A 964E

* tag 'pr-2023-02-16' of https://gitlab.com/a1xndr/qemu:
  docs/fuzz: remove mentions of fork-based fuzzing
  fuzz: remove fork-fuzzing scaffolding
  fuzz/i440fx: remove fork-based fuzzer
  fuzz/virtio-blk: remove fork-based fuzzer
  fuzz/virtio-net: remove fork-based fuzzer
  fuzz/virtio-scsi: remove fork-based fuzzer
  fuzz/generic-fuzz: add a limit on DMA bytes written
  fuzz/generic-fuzz: use reboots instead of forks to reset state
  fuzz: add fuzz_reset API
  hw/sparse-mem: clear memory on reset

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 0 insertions, 41 deletions

diff --git a/tests/qtest/fuzz/fork_fuzz.c b/tests/qtest/fuzz/fork_fuzz.c
deleted file mode 100644
index 6ffb2a7937..0000000000
--- a/tests/qtest/fuzz/fork_fuzz.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Fork-based fuzzing helpers
- *
- * Copyright Red Hat Inc., 2019
- *
- * Authors:
- *  Alexander Bulekov   <alxndr@bu.edu>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "fork_fuzz.h"
-
-
-void counter_shm_init(void)
-{
-    /* Copy what's in the counter region to a temporary buffer.. */
-    void *copy = malloc(&__FUZZ_COUNTERS_END - &__FUZZ_COUNTERS_START);
-    memcpy(copy,
-           &__FUZZ_COUNTERS_START,
-           &__FUZZ_COUNTERS_END - &__FUZZ_COUNTERS_START);
-
-    /* Map a shared region over the counter region */
-    if (mmap(&__FUZZ_COUNTERS_START,
-             &__FUZZ_COUNTERS_END - &__FUZZ_COUNTERS_START,
-             PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED | MAP_ANONYMOUS,
-             0, 0) == MAP_FAILED) {
-        perror("Error: ");
-        exit(1);
-    }
-
-    /* Copy the original data back to the counter-region */
-    memcpy(&__FUZZ_COUNTERS_START, copy,
-           &__FUZZ_COUNTERS_END - &__FUZZ_COUNTERS_START);
-    free(copy);
-}
-
-