From f7e15affa8e574a800180de3bde1a6462aec7241 Mon Sep 17 00:00:00 2001 From: Alex Bennée Date: Tue, 4 Oct 2022 12:52:21 +0100 Subject: plugins: add [pre|post]fork helpers to linux-user Special care needs to be taken in ensuring locks are in a consistent state across fork events. Add helpers so the plugin system can ensure that. Signed-off-by: Alex Bennée Fixes: https://gitlab.com/qemu-project/qemu/-/issues/358 Reviewed-by: Daniel P. Berrangé Tested-by: Daniel P. Berrangé Message-Id: <20221004115221.2174499-1-alex.bennee@linaro.org> --- linux-user/main.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'linux-user/main.c') diff --git a/linux-user/main.c b/linux-user/main.c index 88fccfe261..a17fed045b 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -142,10 +142,12 @@ void fork_start(void) start_exclusive(); mmap_fork_start(); cpu_list_lock(); + qemu_plugin_user_prefork_lock(); } void fork_end(int child) { + qemu_plugin_user_postfork(child); mmap_fork_end(child); if (child) { CPUState *cpu, *next_cpu; -- cgit v1.2.3-55-g7522