Re: [Xen-devel] xc_altp2m_set_vcpu_enable_notify fail

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, May 02, 2016 at 04:36:11PM +0800, Big Strong wrote:
> I've successfully add a new physical page to guest and trying to use it as
> the virtualization exception (#VE) infomation page. However, the function:
> xc_altp2m_set_vcpu_enable_notify(xci, domid, vcpuid, gfn)
> failed for unknown reason (return -1). The only related info I can get is

Check the errno please, thats' where the information is stored.

Wei.

> by `dmesg`:
> 
> [605716.546390] vmfunc[16835]: segfault at 0 ip 00000000004009fb sp
> > 00007fff3a7b87a0 error 4 in vmfunc[400000+1000]
> > [605781.162125] vmfunc[16840]: segfault at 0 ip 00000000004009fb sp
> > 00007fffd84c86d0 error 4 in vmfunc[400000+1000]
> > [606113.290934] vmfunc[16860]: segfault at 0 ip 00000000004009fb sp
> > 00007fffaa076fb0 error 4 in vmfunc[400000+1000]

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