ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2024-12-19 05:37:54 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

virtualbox6: wait at least 1 ms during halt

Browse Source 
When the wait value is too small the HALT attempt turnes into
busy-polling in the VMM. To prevent that always wait a minimal
amount of time.

Issue #4990.
This commit is contained in:
Josef Söntgen 2023-08-31 17:08:51 +02:00 committed by Christian Helmuth
parent 2bb901e1e3
commit ab4c36c834
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
repos/ports/src/virtualbox6/sup_vcpu.cc
View File

@ -721,7 +721,10 @@ template <typename VIRT> VBOXSTRICTRC Sup::Vcpu_impl<VIRT>::_switch_to_hw()
template <typename T> void Sup::Vcpu_impl<T>::halt(Genode::uint64_t const wait_ns)
{
RTSemEventMultiWait(_halt_semevent, wait_ns/RT_NS_1MS);
/* always wait for at least 1 ms */
Genode::uint64_t const v = wait_ns / RT_NS_1MS ? : 1;
RTSemEventMultiWait(_halt_semevent, v);
RTSemEventMultiReset(_halt_semevent);
}