Re: [Xen-devel] [PATCH v5 6/9] xen/x86: parse Dom0 kernel for PVHv2

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 27.01.17 at 18:22, <roger.pau@xxxxxxxxxx> wrote:
> On Thu, Jan 26, 2017 at 06:37:00AM -0700, Jan Beulich wrote:
>> >>> On 19.01.17 at 18:29, <roger.pau@xxxxxxxxxx> wrote:
>> > +    if ( cmdline != NULL )
>> > +    {
>> > +        rc = hvm_copy_to_guest_phys_vcpu(last_addr, cmdline,
>> > +                                         strlen(cmdline) + 1, v);
>> > +        if ( rc )
>> > +        {
>> > +            printk("Unable to copy guest command line\n");
>> > +            return rc;
>> > +        }
>> > +        start_info.cmdline_paddr = last_addr;
>> > +        last_addr += ROUNDUP(strlen(cmdline) + 1, 8);
>> 
>> Where is this 8 coming from?
> 
> So that the next struct is aligned to the cache line size? It's also done in
> xc_dom_x86.c.

How does 8 match up with cache line size?

Jan


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