[PATCH v7 14/24] target/arm: cpu: mark WHPX as supporting PSCI 1.3

Mohamed Mediouni
2025-10-16T16:57:23Z

Hyper-V supports PSCI 1.3, and that implementation is exposed through
WHPX.

Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
---
target/arm/cpu.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 3b556f1404..bf25b3580e 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -23,6 +23,7 @@
#include "qemu/timer.h"
#include "qemu/log.h"
#include "exec/page-vary.h"
+#include "system/whpx.h"
#include "target/arm/idau.h"
#include "qemu/module.h"
#include "qapi/error.h"
@@ -1140,6 +1141,8 @@ static void arm_cpu_initfn(Object *obj)
if (tcg_enabled() || hvf_enabled()) {
/* TCG and HVF implement PSCI 1.1 */
cpu->psci_version = QEMU_PSCI_VERSION_1_1;
+ } else if (whpx_enabled()) {
+ cpu->psci_version = QEMU_PSCI_VERSION_1_3;
}
}

--
2.50.1 (Apple Git-155)