2017-12-01 10:21-0800, Jim Mattson: > Since we no longer allow any I/O ports to be passed through to the guest, > we can use the same page for I/O bitmap A and I/O bitmap B. I think we can disable the feature and save the second page as well: diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index e25c55ea2eb7..80859a7cdf6d 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3624,7 +3624,7 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf) #endif CPU_BASED_CR3_LOAD_EXITING | CPU_BASED_CR3_STORE_EXITING | - CPU_BASED_USE_IO_BITMAPS | + CPU_BASED_UNCOND_IO_EXITING | CPU_BASED_MOV_DR_EXITING | CPU_BASED_USE_TSC_OFFSETING | CPU_BASED_INVLPG_EXITING |
