there is typo issue with mail title "add misc register *supoort*
avecintc" :)
Regards
Bibo Mao
On 2025/9/10 下午5:11, Song Gao wrote:
> Add feature register and misc register for avecintc feature checking and
> setting
>
> Signed-off-by: Song Gao <gaosong@loongson.cn>
> Reviewed-by: Bibo Mao <maobibo@loongson.cn>
> ---
> hw/loongarch/virt.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
> index 37c38ae63f..0883f3a272 100644
> --- a/hw/loongarch/virt.c
> +++ b/hw/loongarch/virt.c
> @@ -561,6 +561,10 @@ static MemTxResult virt_iocsr_misc_write(void *opaque, hwaddr addr,
> return MEMTX_OK;
> }
>
> + if (virt_has_avecintc(lvms) && val & BIT(IOCSRM_AVEC_EN)) {
> + lvms->misc_status |= BIT(IOCSRM_AVEC_EN);
> + }
> +
> features = address_space_ldl(&lvms->as_iocsr,
> EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG,
> attrs, NULL);
> @@ -596,6 +600,9 @@ static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr,
> break;
> case FEATURE_REG:
> ret = BIT(IOCSRF_MSI) | BIT(IOCSRF_EXTIOI) | BIT(IOCSRF_CSRIPI);
> + if (virt_has_avecintc(lvms)) {
> + ret |= BIT(IOCSRF_AVEC);
> + }
> if (kvm_enabled()) {
> ret |= BIT(IOCSRF_VM);
> }
> @@ -625,6 +632,10 @@ static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr,
> if (features & BIT(EXTIOI_ENABLE_INT_ENCODE)) {
> ret |= BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE);
> }
> + if (virt_has_avecintc(lvms) &&
> + (lvms->misc_status & BIT(IOCSRM_AVEC_EN))) {
> + ret |= BIT_ULL(IOCSRM_AVEC_EN);
> + }
> break;
> default:
> g_assert_not_reached();
>