On 2/18/19 1:19 PM, Jan Beulich wrote:
On 15.02.19 at 16:41, <rcojoc...@bitdefender.com> wrote:
HVMOP_altp2m_set_domain_state does not domain_pause(), presumably
on purpose (as it was originally supposed to cater to a in-guest
agent, and a domain pausing itself is not a good idea).
This can lead to domain crashes in the vmx_vmexit_handler() code
that checks if the guest has the ability to switch EPTP without an
exit. That code can __vmread() the host p2m's EPT_POINTER
(before HVMOP_altp2m_set_domain_state "for_each_vcpu()" has a
chance to run altp2m_vcpu_initialise(), but after
d->arch.altp2m_active is set).
Signed-off-by: Razvan Cojocaru <rcojoc...@bitdefender.com>
Acked-by: Jan Beulich <jbeul...@suse.com>
Also I assume you mean to have the same justification here as
you have in patch 1, as to 4.12 inclusion. And for this reason
I'm also Cc-ing Jürgen again.
Ideed, I do. Thank you very much.
Thanks,
Razvan
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
