ice@blossom ..............................................................................................................................................................................…/xen 🌸 enable-runstate-phys-area ?
❯ cat 0001-xen-domain-enable-VCPUOP_register_runstate_phys_area.patch
From 416992b30258d34b7cc7bc4f7875719f47618147 Mon Sep 17 00:00:00 2001
Date: Fri, 12 Dec 2025 20:55:50 +0000
Subject: [PATCH] xen/domain: enable VCPUOP_register_runstate_phys_area
hypercall
The XENFEAT_runstate_phys_area feature is unconditionally advertised to
guests via XENVER_get_features ( see xen/common/kernel.c ), but the
corresponding VCPUOP_register_runstate_phys_area hypercall was disabled
with a placeholder check that always returned -ENOSYS!
Remove the dead code to enable the hypercall, making the implementation
consistent with the advertised feature.
---
xen/common/domain.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/xen/common/domain.c b/xen/common/domain.c
index 93c71bc766..3ae8d41cf2 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -2284,10 +2284,6 @@ long common_vcpu_op(int cmd, struct vcpu *v, XEN_GUEST_HANDLE_PARAM(void) arg)
{
struct vcpu_register_runstate_memory_area area;
- rc = -ENOSYS;
- if ( 0 /* TODO: Dom's XENFEAT_runstate_phys_area setting */ )
- break;
-
rc = -EFAULT;
if ( copy_from_guest(&area.addr.p, arg, 1) )
break;
--
--