Re: [RFC v2 24/24] target/arm: wrap call to aarch64_sve_change_el in tcg_enabled()

[Claudio Fontana]

Probably I should describe here that after this patch,

configure --enable-tcg --disable-kvm

is now buildable.

Ciao,

Claudio

On 3/1/21 5:49 PM, Claudio Fontana wrote:
> Signed-off-by: Claudio Fontana <cfontana@suse.de>
> ---
>  target/arm/cpu-sysemu.c | 12 +++++++-----
>  1 file changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/target/arm/cpu-sysemu.c b/target/arm/cpu-sysemu.c
> index 451ad4f8bd..034d073c38 100644
> --- a/target/arm/cpu-sysemu.c
> +++ b/target/arm/cpu-sysemu.c
> @@ -754,11 +754,13 @@ static void arm_cpu_do_interrupt_aarch64(CPUState *cs)
>      unsigned int cur_el = arm_current_el(env);
>      int rt;
>  
> -    /*
> -     * Note that new_el can never be 0.  If cur_el is 0, then
> -     * el0_a64 is is_a64(), else el0_a64 is ignored.
> -     */
> -    aarch64_sve_change_el(env, cur_el, new_el, is_a64(env));
> +    if (tcg_enabled()) {
> +        /*
> +         * Note that new_el can never be 0.  If cur_el is 0, then
> +         * el0_a64 is is_a64(), else el0_a64 is ignored.
> +         */
> +        aarch64_sve_change_el(env, cur_el, new_el, is_a64(env));
> +    }
>  
>      if (cur_el < new_el) {
>          /* Entry vector offset depends on whether the implemented EL
>