Reading QEMU_CLOCK_VIRTUAL is thread-safe.
with CLI
-M q35,hpet=off -cpu host -enable-kvm -smp 240,sockets=4
patch makes WS2025 guest, that wasn't able to boot in 30min, to boot in 2-1min.
Signed-off-by: Igor Mammedov <imamm...@redhat.com>
---
hw/acpi/core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/acpi/core.c b/hw/acpi/core.c
index 58f8964e13..683fbdd8df 100644
--- a/hw/acpi/core.c
+++ b/hw/acpi/core.c
@@ -547,6 +547,8 @@ void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn
update_sci,
ar->tmr.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, acpi_pm_tmr_timer, ar);
memory_region_init_io(&ar->tmr.io, memory_region_owner(parent),
&acpi_pm_tmr_ops, ar, "acpi-tmr", 4);
+ memory_region_enable_lockless_ro_io(&ar->tmr.io);
+ ar->tmr.io.disable_reentrancy_guard = true;
memory_region_add_subregion(parent, 8, &ar->tmr.io);
}
--
2.43.5
