Messages in this thread | | | Date | Tue, 3 Mar 2015 17:44:31 +0100 | From | Radim Krčmář <> | Subject | Re: [PATCH v3] x86: svm: use kvm_fast_pio_in() |
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2015-03-02 15:02-0600, Joel Schopp: > +int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, unsigned short port) > +{ > + unsigned long val; > + int ret = emulator_pio_in_emulated(&vcpu->arch.emulate_ctxt, size, > + port, &val, 1); > +
Btw. does this return 1 in some scenario?
> + if (ret) > + kvm_register_write(vcpu, VCPU_REGS_RAX, val); > + else > + vcpu->arch.complete_userspace_io = complete_fast_pio; > + > + return ret; > +} > +EXPORT_SYMBOL_GPL(kvm_fast_pio_in);
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