diff options
| author | Wanpeng Li <wanpeng.li@hotmail.com> | 2017-09-29 04:06:24 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-10-12 15:01:50 +0300 |
| commit | 0f107682cb0398265d80237c353a6fa93161d219 (patch) | |
| tree | b32e14dee11df1917f3934f30d004cdd096abd8b /arch/x86/kvm | |
| parent | 8a60aea62100c79fb5d151a1e261f11534c3dbff (diff) | |
| download | linux-0f107682cb0398265d80237c353a6fa93161d219.tar.xz | |
KVM: VMX: Don't expose PLE enable if there is no hardware support
KVM doesn't expose the PLE capability to the L1 hypervisor, however,
ple_window still shows the default value on L1 hypervisor. This patch
fixes it by clearing all the PLE related module parameter if there is
no PLE capability.
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 95a01609d7ee..941185e0606b 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6779,8 +6779,13 @@ static __init int hardware_setup(void) if (enable_ept && !cpu_has_vmx_ept_2m_page()) kvm_disable_largepages(); - if (!cpu_has_vmx_ple()) + if (!cpu_has_vmx_ple()) { ple_gap = 0; + ple_window = 0; + ple_window_grow = 0; + ple_window_max = 0; + ple_window_shrink = 0; + } if (!cpu_has_vmx_apicv()) { enable_apicv = 0; |