From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
This is required to support keeping VCPU states across a system reset.
If we do not read the current state before the reset,
cpu_synchronize_all_post_reset may write back incorrect state
information.
The first user of this will be MCE MSR synchronization which currently
works around the missing cpu_synchronize_all_states.
Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
---
This must be applied before "Drop MCE MSRs write back restrictions" (I
don't want to resend the whole series for this).
vl.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/vl.c b/vl.c
index 768dbf4..20e5dda 100644
--- a/vl.c
+++ b/vl.c
@@ -1422,6 +1422,7 @@ static void main_loop(void)
}
if (qemu_reset_requested()) {
pause_all_vcpus();
+ cpu_synchronize_all_states();
qemu_system_reset();
resume_all_vcpus();
}
--
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