From 33577b47c64435fcc2a1bc01c7e82534256f1fc3 Mon Sep 17 00:00:00 2001 From: Pavel Dovgalyuk Date: Mon, 14 Mar 2016 10:44:36 +0300 Subject: replay: character devices This patch implements record and replay of character devices. It records chardevs communication in replay mode. Recorded information include data read from backend and counter of bytes written from frontend to backend to preserve frontend internal state. If character device was configured through the command line in record mode, then in replay mode it should be also added to command line. Backend of the character device could be changed in replay mode. Replaying of devices that perform ioctl and get_msgfd operations is not supported. gdbstub which also acts as a backend is not recorded to allow controlling the replaying through gdb. Monitor backends are also not recorded. Signed-off-by: Pavel Dovgalyuk Message-Id: <20160314074436.4980.83856.stgit@PASHA-ISP> [Add stubs. - Paolo] Signed-off-by: Paolo Bonzini --- replay/replay.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'replay/replay.c') diff --git a/replay/replay.c b/replay/replay.c index f8739c26c8..fcfde4fc93 100644 --- a/replay/replay.c +++ b/replay/replay.c @@ -20,7 +20,7 @@ /* Current version of the replay mechanism. Increase it when file format changes. */ -#define REPLAY_VERSION 0xe02002 +#define REPLAY_VERSION 0xe02003 /* Size of replay log header */ #define HEADER_SIZE (sizeof(uint32_t) + sizeof(uint64_t)) -- cgit v1.2.3