search for: handle_cr

On Fri, Mar 30, 2018 at 10:11 AM, Daniel Stone <daniels at collabora.com> wrote: > Hi, > I've been working on a getfb2[0] ioctl, which amongst other things > supports multi-planar framebuffers as well as modifiers. getfb > currently calls the framebuffer's handle_create hook, which doesn't > support multiple planes. > > Thanks to Noralf's recent work, drivers can just store GEM objects > directly in drm_framebuffer. I use this directly in getfb2: we need > direct access to the GEM objects and not a vfunc in order to not hand > out dup...

...pu)->arch.cr_mask); + + kvmi_put(vcpu->kvm); + + return ret; +} +EXPORT_SYMBOL(kvmi_cr3_intercepted); diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index d231ff25f467..d3d7908995b5 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -4850,7 +4850,8 @@ static int handle_cr(struct kvm_vcpu *vcpu) err = handle_set_cr0(vcpu, val); return kvm_complete_insn_gp(vcpu, err); case 3: - WARN_ON_ONCE(enable_unrestricted_guest); + WARN_ON_ONCE(enable_unrestricted_guest && + !kvmi_cr3_intercepted(vcpu)); err = kvm_set_cr3(vcpu, val); return...

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place