On 29/05/2015 21:23, Radim Krčmář wrote:
>> > +int kvm_vcpu_write_guest(struct kvm_vcpu *vcpu, gpa_t gpa, const void *data,
>> > + unsigned long len)
>> > +{
>> > + gfn_t gfn = gpa >> PAGE_SHIFT;
>> > + int seg;
>> > + int offset = offset_in_page(gpa);
>> > + int ret;
>> > +
>> > + while ((seg = next_segment(len, offset)) != 0) {
>> > + ret = kvm_vcpu_write_guest_page(vcpu, gfn, data, offset, seg);
>> > + if (ret < 0)
>> > + return ret;
>> > + offset = 0;
>> > + len -= seg;
>> > + data += seg;
>> > + ++gfn;
>> > + }
>> > + return 0;
>> > +}
> (There is no need to pass vcpu, and kvm, in this API.
How so? A single kvm_vcpu_write_guest can cross multiple slots.
Paolo
> Extracting memslots early will help to keep more code common.
>
> I have patches that did a superset of this for the old API, so posting
> them after this series is finalized will be simple.)
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