diff options
| -rw-r--r-- | arch/x86/kvm/svm/avic.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c index d0b845ab66fe..72b8cab2fbce 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -1188,6 +1188,14 @@ bool avic_hardware_setup(void) if (x2avic_enabled) pr_info("x2AVIC enabled\n"); + /* + * Disable IPI virtualization for AMD Family 17h CPUs (Zen1 and Zen2) + * due to erratum 1235, which results in missed VM-Exits on the sender + * and thus missed wake events for blocking vCPUs due to the CPU + * failing to see a software update to clear IsRunning. + */ + enable_ipiv = enable_ipiv && boot_cpu_data.x86 != 0x17; + amd_iommu_register_ga_log_notifier(&avic_ga_log_notifier); return true; |