From 01e75d87834a5188f98defa2d1f88b69dca7e9a0 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Mon, 20 Sep 2021 22:39:31 +0200 Subject: [PATCH] allwinner-h3: Switch to SMC as PSCI conduit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Allwinner H3 SoC uses Cortex-A7 cores which support virtualization. However, today we are configuring QEMU to use HVC as PSCI conduit. That means HVC calls get trapped into QEMU instead of the guest's own emulated CPU and thus break the guest's ability to execute virtualization. Fix this by moving to SMC as conduit, freeing up HYP completely to the VM. Signed-off-by: Alexander Graf Message-id: 20210920203931.66527-1-agraf@csgraf.de Fixes: 740dafc0ba0 ("hw/arm: add Allwinner H3 System-on-Chip") Reviewed-by: Niek Linnenbank Tested-by: Niek Linnenbank Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Peter Maydell --- hw/arm/allwinner-h3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c index 27f1070145..f9b7ed1871 100644 --- a/hw/arm/allwinner-h3.c +++ b/hw/arm/allwinner-h3.c @@ -237,7 +237,7 @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp) /* Provide Power State Coordination Interface */ qdev_prop_set_int32(DEVICE(&s->cpus[i]), "psci-conduit", - QEMU_PSCI_CONDUIT_HVC); + QEMU_PSCI_CONDUIT_SMC); /* Disable secondary CPUs */ qdev_prop_set_bit(DEVICE(&s->cpus[i]), "start-powered-off",