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[RFC PATCH v6 43/43] arm/p2m: Add support for HVMOP_altp2m_set_domain_state
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Rose Spangler <Rose.Spangler@xxxxxxxxxxxxxx>
- Date: Mon, 20 Apr 2026 17:32:06 -0400
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- Cc: Rose Spangler <Rose.Spangler@xxxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, "Julien Grall" <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Mon, 20 Apr 2026 21:35:50 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
This commit enables the HVMOP_altp2m_set_domain_state command on ARM, since
all prerequisite functions have been implemented. This makes it possible
to activate altp2m on a domain.
This is commit 1/1 of the set_domain_state phase.
Signed-off-by: Rose Spangler <Rose.Spangler@xxxxxxxxxxxxxx>
---
v6: Introduced this patch.
This patch replaces the "arm/p2m: Add HVMOP_altp2m_set_domain_state"
patch from the v4/v5 patch series.
---
xen/common/altp2m.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/xen/common/altp2m.c b/xen/common/altp2m.c
index d980ebed08ab..951e56a2aba5 100644
--- a/xen/common/altp2m.c
+++ b/xen/common/altp2m.c
@@ -254,17 +254,18 @@ int do_altp2m_op(
rc = __copy_to_guest(arg, &a, 1) ? -EFAULT : 0;
break;
-#ifdef CONFIG_X86
case HVMOP_altp2m_set_domain_state:
{
struct vcpu *v;
bool ostate;
+#if defined(CONFIG_X86) && defined(CONFIG_HVM)
if ( nestedhvm_enabled(d) )
{
rc = -EINVAL;
break;
}
+#endif
rc = domain_pause_except_self(d);
if ( rc )
@@ -295,6 +296,7 @@ int do_altp2m_op(
break;
}
+#ifdef CONFIG_X86
case HVMOP_altp2m_vcpu_enable_notify:
{
struct vcpu *v;
--
2.34.1
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