[RFC PATCH RESEND 23/42] target/arm: Implement SysemuCPUOps::can_accelerate() handler

[Philippe Mathieu-Daudé]

ARM hardware can only accelerate EL0 and EL1.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/arm/cpu.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index ab5fbd9b40b..1a19e5cfb45 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -149,6 +149,13 @@ static bool arm_cpu_has_work(CPUState *cs)
          | CPU_INTERRUPT_VFIQ | CPU_INTERRUPT_VIRQ | CPU_INTERRUPT_VSERR
          | CPU_INTERRUPT_EXITTB);
 }
+
+static bool arm_cpu_can_accelerate(CPUState *cs)
+{
+    CPUARMState *env = cpu_env(cs);
+
+    return arm_current_el(env) < 2;
+}
 #endif /* !CONFIG_USER_ONLY */
 
 void arm_register_pre_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook,
@@ -2695,6 +2702,7 @@ static vaddr aarch64_untagged_addr(CPUState *cs, vaddr x)
 
 static const struct SysemuCPUOps arm_sysemu_ops = {
     .has_work = arm_cpu_has_work,
+    .can_accelerate = arm_cpu_can_accelerate,
     .get_phys_page_attrs_debug = arm_cpu_get_phys_page_attrs_debug,
     .asidx_from_attrs = arm_asidx_from_attrs,
     .write_elf32_note = arm_cpu_write_elf32_note,
-- 
2.49.0