On 10/21/2020 6:19 AM, Sean Christopherson wrote:
On Mon, Oct 12, 2020 at 11:35:42AM +0800, Chenyi Qiang wrote:
@@ -6138,6 +6149,26 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu,
fastpath_t exit_fastpath)
return 0;
}
+static int vmx_handle_exit(struct kvm_vcpu *vcpu,
On Mon, Oct 12, 2020 at 11:35:42AM +0800, Chenyi Qiang wrote:
> @@ -6138,6 +6149,26 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu,
> fastpath_t exit_fastpath)
> return 0;
> }
>
> +static int vmx_handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath)
> +{
> + int ret =
Virtual Machine can exploit bus locks to degrade the performance of
system. Bus lock can be caused by split locked access to writeback(WB)
memory or by using locks on uncacheable(UC) memory. The bus lock is
typically >1000 cycles slower than an atomic operation within a cache
line. It also
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