github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-03 12:03:54 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

KVM: VMX: Call vmx_get_cpl() directly in handle_dr()

Browse Source 
Use vmx_get_cpl() instead of bouncing through kvm_x86_ops.get_cpl() when
performing a CPL check on MOV DR accesses.  This avoids a RETPOLINE (when
enabled), and more importantly removes a vendor reference to kvm_x86_ops
and helps pave the way for unexporting kvm_x86_ops.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220128005208.4008533-7-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2022-01-28 00:51:52 +00:00 committed by Paolo Bonzini
parent e27bc0440e
commit ef2d488c65
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kvm/vmx/vmx.c
View File

@ -5184,7 +5184,7 @@ static int handle_dr(struct kvm_vcpu *vcpu)
if (!kvm_require_dr(vcpu, dr))
return 1;
if (kvm_x86_ops.get_cpl(vcpu) > 0)
if (vmx_get_cpl(vcpu) > 0)
goto out;
dr7 = vmcs_readl(GUEST_DR7);