@@ -43,6 +43,7 @@
#define TYPE_QEMU_SDEI "qemu_sdei"
#define QEMU_SDEI(obj) OBJECT_CHECK(QemuSDEState, (obj), TYPE_QEMU_SDEI)
+bool sdei_enabled;
static QemuSDEState *sde_state;
typedef struct QemuSDEIBindNotifyEntry {
@@ -1465,6 +1466,7 @@ static const VMStateDescription vmstate_sde_state = {
static void sdei_initfn(Object *obj)
{
QemuSDEState *s = QEMU_SDEI(obj);
+ KVMState *kvm = KVM_STATE(current_machine->accelerator);
if (sde_state) {
error_report("Only one SDEI dispatcher is allowed!");
@@ -1474,6 +1476,21 @@ static void sdei_initfn(Object *obj)
qemu_sde_init(s);
qemu_register_reset(qemu_sde_reset, s);
+
+ if (kvm_check_extension(kvm, KVM_CAP_FORWARD_HYPERCALL)) {
+ int ret;
+ ret = kvm_vm_enable_cap(kvm, KVM_CAP_FORWARD_HYPERCALL, 0,
+ KVM_CAP_FORWARD_HYPERCALL_EXCL_PSCI);
+ if (ret < 0) {
+ error_report("Enable hypercall forwarding failed: %s",
+ strerror(-ret));
+ abort();
+ }
+ sdei_enabled = true;
+ info_report("qemu sdei enabled");
+ } else {
+ info_report("KVM does not support forwarding hypercall.");
+ }
}
static void qemu_sde_class_init(ObjectClass *klass, void *data)
@@ -29,6 +29,8 @@
#define SDEI_MAX_REQ SDEI_1_0_FN(0x12)
+extern bool sdei_enabled;
+
void sdei_handle_request(CPUState *cs, struct kvm_run *run);
/*
Check KVM hypercall forward capability and enable it, and set global flag "sdei_enabled" to true if everything works well. Signed-off-by: Heyi Guo <guoheyi@huawei.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: James Morse <james.morse@arm.com> --- target/arm/sdei.c | 17 +++++++++++++++++ target/arm/sdei.h | 2 ++ 2 files changed, 19 insertions(+)