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KVM: x86: Hoist kvm_dirty_regs check out of sync_regs()

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Move the kvm_dirty_regs vs. KVM_SYNC_X86_VALID_FIELDS check out of
sync_regs() and into its sole caller, kvm_arch_vcpu_ioctl_run().  This
allows a future patch to allow synchronizing select state for protected
VMs.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <889017a8d31cea46472e0c64b234ef5919278ed9.1625186503.git.isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2021-07-02 15:04:29 -07:00 committed by Paolo Bonzini
parent 19025e7bc5
commit e489a4a6bd
1 changed files with 2 additions and 4 deletions
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6
arch/x86/kvm/x86.c
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@ -9980,7 +9980,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
goto out;
}
if (kvm_run->kvm_valid_regs & ~KVM_SYNC_X86_VALID_FIELDS) {
if ((kvm_run->kvm_valid_regs & ~KVM_SYNC_X86_VALID_FIELDS) ||
(kvm_run->kvm_dirty_regs & ~KVM_SYNC_X86_VALID_FIELDS)) {
r = -EINVAL;
goto out;
}
@ -10585,9 +10586,6 @@ static void store_regs(struct kvm_vcpu *vcpu)
static int sync_regs(struct kvm_vcpu *vcpu)
{
if (vcpu->run->kvm_dirty_regs & ~KVM_SYNC_X86_VALID_FIELDS)
return -EINVAL;
if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_REGS) {
__set_regs(vcpu, &vcpu->run->s.regs.regs);
vcpu->run->kvm_dirty_regs &= ~KVM_SYNC_X86_REGS;