mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

KVM: x86: Move call to update_exception_bitmap() into VMX code 

Now that vcpu_after_set_cpuid() and update_exception_bitmap() are called
back-to-back, subsume the exception bitmap update into the common CPUID
update.  Drop the SVM invocation entirely as SVM's exception bitmap
doesn't vary with respect to guest CPUID.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200930041659.28181-4-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2020-09-29 21:16:57 -07:00 committed by Paolo Bonzini
parent c44d9b3470
commit a6337a3542
2 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/x86/kvm/cpuid.c
View File

@ -171,7 +171,6 @@ static void kvm_vcpu_after_set_cpuid(struct kvm_vcpu *vcpu)
/* Invoke the vendor callback only after the above state is updated. */
kvm_x86_ops.vcpu_after_set_cpuid(vcpu);
kvm_x86_ops.update_exception_bitmap(vcpu);
}
static int is_efer_nx(void)

3
arch/x86/kvm/vmx/vmx.c
View File

@ -7248,6 +7248,9 @@ static void vmx_vcpu_after_set_cpuid(struct kvm_vcpu *vcpu)
vmx_set_guest_uret_msr(vmx, msr, enabled ? 0 : TSX_CTRL_RTM_DISABLE);
}
}
/* Refresh #PF interception to account for MAXPHYADDR changes. */
update_exception_bitmap(vcpu);
}
static __init void vmx_set_cpu_caps(void)