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envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::535; envelope-from=gregorhaas1997@gmail.com; helo=mail-pg1-x535.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1719536347949100001 Content-Type: text/plain; charset="utf-8" The read() syscall is not guaranteed to return all data from a file. The default ROM loader implementation currently does not take this into account, instead failing if all bytes are not read at once. This change loads the ROM using load_image_size() instead, which correctly reads all data using multiple calls to read(). Signed-off-by: Gregor Haas --- hw/core/loader.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/hw/core/loader.c b/hw/core/loader.c index 2f8105d7de..8216781a75 100644 --- a/hw/core/loader.c +++ b/hw/core/loader.c @@ -1115,14 +1115,13 @@ ssize_t rom_add_file(const char *file, const char *= fw_dir, =20 rom->datasize =3D rom->romsize; rom->data =3D g_malloc0(rom->datasize); - lseek(fd, 0, SEEK_SET); - rc =3D read(fd, rom->data, rom->datasize); + close(fd); + rc =3D load_image_size(rom->path, rom->data, rom->datasize); if (rc !=3D rom->datasize) { fprintf(stderr, "rom: file %-20s: read error: rc=3D%zd (expected %= zd)\n", rom->name, rc, rom->datasize); goto err; } - close(fd); rom_insert(rom); if (rom->fw_file && fw_cfg) { const char *basename; --=20 2.45.2