From 878ec29b9c1915ea0da951064b8aac3050f2f5b9 Mon Sep 17 00:00:00 2001 From: Pavel Dovgalyuk Date: Thu, 19 Dec 2019 15:50:48 +0300 Subject: replay: record and replay random number sources Record/replay feature of icount allows deterministic running of execution scenarios. Some CPUs and peripheral devices read random numbers from external sources making deterministic execution impossible. This patch adds recording and replaying of random read operations into guest-random module, which is used by the virtual hardware. Signed-off-by: Pavel Dovgalyuk Message-Id: <157675984852.14505.15709141760677102489.stgit@pasha-Precision-3630-Tower> Signed-off-by: Paolo Bonzini --- docs/replay.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'docs') diff --git a/docs/replay.txt b/docs/replay.txt index ce97c3f..f4619a6 100644 --- a/docs/replay.txt +++ b/docs/replay.txt @@ -67,6 +67,7 @@ Modifications of qemu include: * network filter for recording and replaying the packets * block driver for making block layer deterministic * serial port input record and replay + * recording of random numbers obtained from the external sources Locking and thread synchronisation ---------------------------------- -- cgit v1.1