These values are set by the toolstack for each create/restore operation, and
bound by xen{store,console}d before the the guest starts running.
A guest has no reason to modify them at all, and the matching *_PFN parameters
are already read-only. Adjust the *_EVTCHN permissions to be consistent.
Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
---
CC: Jan Beulich <jbeul...@suse.com>
CC: Wei Liu <wei.l...@citrix.com>
CC: Roger Pau Monné <roger....@citrix.com>
CC: Paul Durrant <paul.durr...@citrix.com>
CC: Stefano Stabellini <sstabell...@kernel.org>
CC: Julien Grall <julien.gr...@arm.com>
---
xen/arch/x86/hvm/hvm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index d19ae35..408e695 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -4079,8 +4079,6 @@ static int hvm_allow_set_param(struct domain *d,
case HVM_PARAM_VM86_TSS_SIZED:
case HVM_PARAM_ACPI_IOPORTS_LOCATION:
case HVM_PARAM_VM_GENERATION_ID_ADDR:
- case HVM_PARAM_STORE_EVTCHN:
- case HVM_PARAM_CONSOLE_EVTCHN:
case HVM_PARAM_X87_FIP_WIDTH:
break;
@@ -4090,6 +4088,7 @@ static int hvm_allow_set_param(struct domain *d,
* permissions in Xen, and therefore may not set by the domain.
*/
case HVM_PARAM_STORE_PFN:
+ case HVM_PARAM_STORE_EVTCHN:
case HVM_PARAM_PAE_ENABLED:
case HVM_PARAM_IOREQ_PFN:
case HVM_PARAM_BUFIOREQ_PFN:
@@ -4101,6 +4100,7 @@ static int hvm_allow_set_param(struct domain *d,
case HVM_PARAM_ACPI_S_STATE:
case HVM_PARAM_VPT_ALIGN:
case HVM_PARAM_CONSOLE_PFN:
+ case HVM_PARAM_CONSOLE_EVTCHN:
case HVM_PARAM_NESTEDHVM:
case HVM_PARAM_PAGING_RING_PFN:
case HVM_PARAM_MONITOR_RING_PFN:
--
2.1.4
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