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authorAlex Bennée <alex.bennee@linaro.org>2022-10-04 12:52:21 +0100
committerAlex Bennée <alex.bennee@linaro.org>2022-10-06 11:53:41 +0100
commitf7e15affa8e574a800180de3bde1a6462aec7241 (patch)
treec759a5deb49756097f301652837b14ffc91ef6b2 /linux-user
parent37e62694e4bcc937c8c5fa6153302a5451fb12c5 (diff)
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 <alex.bennee@linaro.org> Fixes: https://gitlab.com/qemu-project/qemu/-/issues/358 Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Tested-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20221004115221.2174499-1-alex.bennee@linaro.org>
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/main.c2
1 files changed, 2 insertions, 0 deletions
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;