On Wed, May 25, 2022 at 10:14 AM Jon Kohler <jon@xxxxxxxxxxx> wrote: > > > > > On May 25, 2022, at 1:04 PM, Sean Christopherson <seanjc@xxxxxxxxxx> wrote: > > > > On Fri, May 20, 2022, Jon Kohler wrote: > >> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c > >> index 610355b9ccce..1c725d17d984 100644 > >> --- a/arch/x86/kvm/vmx/vmx.c > >> +++ b/arch/x86/kvm/vmx/vmx.c > >> @@ -2057,20 +2057,32 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) > >> return 1; > >> > >> vmx->spec_ctrl = data; > >> - if (!data) > >> + > >> + /* > >> + * Disable interception on the first non-zero write, unless the > >> + * guest is hosted on an eIBRS system and setting only > > > > The "unless guest is hosted on an eIBRS system" blurb is wrong and doesn't match > > Ah right, thanks for catching that > > > the code. Again, it's all about whether eIBRS is advertised to the guest. With > > some other minor tweaking to wrangle the comment to 80 chars... > > RE 80 chars - quick question (and forgive the silly question here), but how are you > counting that? I’ve got my editor cutting at 79 cols, where tab size is accounted > for as 4 cols, so the longest line on my side for this patch is 72-73 or so. Tab stops are every 8 characters. :-)
