Re: [Xen-devel] [PATCH] xen/vm_event: Clean up control-register-write vm_events

[Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>]

On 05/12/2015 06:53 PM, Andrew Cooper wrote:
> On 12/05/15 16:50, Andrew Cooper wrote:
>> On 12/05/15 16:49, Razvan Cojocaru wrote:
>>> On 05/12/2015 06:35 PM, Jan Beulich wrote:
>>>>>>> On 12.05.15 at 16:58, <rcojocaru@xxxxxxxxxxxxxxx> wrote:
>>>>> +/* Supported values for the vm_event_write_ctrlreg index. */
>>>>> +#define X86_CR0     (1 << 0)
>>>>> +#define X86_CR3     (1 << 1)
>>>>> +#define X86_CR4     (1 << 2)
>>>>> +#define X86_XCR0    (1 << 3)
>>>> These names, being put in the public interface, are way too generic.
>>> I've copied them from Andrew Cooper's suggestion in the previous thread,
>>> hopefully he'll chime in. I'm happy to rename / move them if so desired.
>> I intended something like VM_EVENT_ARCH_X86_CR0 etc.
> 
> or perhaps slightly more specific to ctrl_reg read/write.

VM_EVENT_ARCH_X86_MOV_TO_CR0? Or maybe VM_EVENT_WRITE_ARCH_X86_CR0?

There's something else that should also be clarified: I've renamed the
vm_event.h struct to vm_event_write_ctrlreg, and changed
monitor.mov_to_cr* to monitor.write_ctrlreg*, but left
xc_monitor_mov_to_cr() in libxc, and mov_to_cr in the domctl part (I
thought it fit with mov_to_msr(), etc.). Should I change that to
write_ctrlreg as well? On the one hand, mov_to_cr seems to be consistent
with the previous interface, and on the other it's not consistent with
the name changes the patch has made.


Thanks,
Razvan

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