diff options
author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-05-23 12:56:59 -0400 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-05-24 14:23:01 -0400 |
commit | 5842f5768599094758931b74190cdf93641a8e35 (patch) | |
tree | 32eb4c87399c9cc60eabace7dd098fd660ca5eaa /drivers/xen | |
parent | a32c88b9386ce3df87f28dd46bdc3776cd6edf75 (diff) |
xen/hvc: Check HVM_PARAM_CONSOLE_[EVTCHN|PFN] for correctness.
We need to make sure that those parameters are setup to be correct.
As such the value of 0 is deemed invalid and we find that we
bail out. The hypervisor sets by default all of them to be zero
and when the hypercall is done does a simple:
a.value = d->arch.hvm_domain.params[a.index];
Which means that if the Xen toolstack forgot to setup the proper
HVM_PARAM_CONSOLE_EVTCHN (or the PFN one), we would get the
default value of 0 and use that.
CC: stable@kernel.org
Fixes-Oracle-Bug: 14091238
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen')
0 files changed, 0 insertions, 0 deletions