Signed-off-by: Mohamed Mediouni <moha...@unpredictable.fr>
---
hw/arm/virt.c | 9 ++++++---
target/arm/hvf-stub.c | 15 +++++++++++++++
target/arm/hvf/hvf.c | 41 +++++++++++++++++++++++++++++++++++++++--
target/arm/hvf_arm.h | 3 +++
4 files changed, 63 insertions(+), 5 deletions(-)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 7da1176cda..7348d55104 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -817,8 +817,7 @@ static void create_gic(VirtMachineState *vms, MemoryRegion
*mem)
g_assert_not_reached();
}
- if (kvm_enabled() && vms->virt &&
- (revision != 3 || !kvm_irqchip_in_kernel())) {
+ if (kvm_enabled() && vms->virt && (revision != 3 ||
!kvm_irqchip_in_kernel())) {
error_report("KVM EL2 is only supported with in-kernel GICv3");
exit(1);
}
@@ -2279,7 +2278,8 @@ static void machvirt_init(MachineState *machine)
exit(1);
}
- if (vms->virt && !kvm_enabled() && !tcg_enabled() && !qtest_enabled()) {
+ if (vms->virt && !kvm_enabled() && !tcg_enabled()
+ && !hvf_enabled() && !qtest_enabled()) {
error_report("mach-virt: %s does not support providing "
"Virtualization extensions to the guest CPU",
current_accel_name());
@@ -2549,6 +2549,9 @@ static void virt_set_virt(Object *obj, bool value, Error
**errp)
VirtMachineState *vms = VIRT_MACHINE(obj);
vms->virt = value;
+#if defined(CONFIG_HVF) && defined(__aarch64__)
+ hvf_arm_el2_enable(value);
+#endif
}
static bool virt_get_highmem(Object *obj, Error **errp)
diff --git a/target/arm/hvf-stub.c b/target/arm/hvf-stub.c
index ff137267a0..95ec4ea62f 100644
--- a/target/arm/hvf-stub.c
+++ b/target/arm/hvf-stub.c
@@ -18,3 +18,18 @@ uint32_t hvf_arm_get_max_ipa_bit_size(void)
{
g_assert_not_reached();
}
+
+bool hvf_arm_el2_supported(void)
+{
+ g_assert_not_reached();
+}
+
+bool hvf_arm_el2_enabled(void)
+{
+ g_assert_not_reached();
+}
+
+void hvf_arm_el2_enable(bool)
+{
+ g_assert_not_reached();
+}
diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
index 5ee0df17e3..4ac42bda32 100644
--- a/target/arm/hvf/hvf.c
+++ b/target/arm/hvf/hvf.c
@@ -26,6 +26,7 @@
#include "system/address-spaces.h"
#include "system/memory.h"
#include "hw/boards.h"
+#include "hw/arm/virt.h"
#include "hw/irq.h"
#include "qemu/main-loop.h"
#include "system/cpus.h"
@@ -891,6 +892,10 @@ static bool
hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
(1ULL << ARM_FEATURE_PMU) |
(1ULL << ARM_FEATURE_GENERIC_TIMER);
+ if (hvf_arm_el2_enabled()) {
+ ahcf->features |= 1ULL << ARM_FEATURE_EL2;
+ }
+
for (i = 0; i < ARRAY_SIZE(regs); i++) {
r |= hv_vcpu_config_get_feature_reg(hv_vcpu_config, regs[i].reg,
regs[i].val);
}
@@ -957,6 +962,25 @@ uint32_t hvf_arm_get_max_ipa_bit_size(void)
return round_down_to_parange_bit_size(max_ipa_size);
}
+bool hvf_arm_el2_supported(void)
+{
+ bool is_nested_virt_supported;
+ hv_return_t ret =
hv_vm_config_get_el2_supported(&is_nested_virt_supported);
+ assert_hvf_ok(ret);
+ return is_nested_virt_supported;
+}
+
+static bool is_nested_virt_enabled = false;
+bool hvf_arm_el2_enabled(void)
+{
+ return is_nested_virt_enabled;
+}
+
+void hvf_arm_el2_enable(bool enable)
+{
+ is_nested_virt_enabled = enable;
+}
+
void hvf_arm_set_cpu_features_from_host(ARMCPU *cpu)
{
if (!arm_host_cpu_features.dtb_compatible) {
@@ -993,6 +1017,13 @@ hv_return_t hvf_arch_vm_create(MachineState *ms, uint32_t
pa_range)
}
chosen_ipa_bit_size = pa_range;
+ if (hvf_arm_el2_enabled()) {
+ ret = hv_vm_config_set_el2_enabled(config, true);
+ if (ret != HV_SUCCESS) {
+ goto cleanup;
+ }
+ }
+
ret = hv_vm_create(config);
cleanup:
@@ -1100,6 +1131,13 @@ static void hvf_psci_cpu_off(ARMCPU *arm_cpu)
assert(ret == QEMU_ARM_POWERCTL_RET_SUCCESS);
}
+static int hvf_psci_get_target_el(void)
+{
+ if (hvf_arm_el2_enabled()) {
+ return 2;
+ }
+ return 1;
+}
/*
* Handle a PSCI call.
*
@@ -1121,7 +1159,6 @@ static bool hvf_handle_psci_call(CPUState *cpu)
CPUState *target_cpu_state;
ARMCPU *target_cpu;
target_ulong entry;
- int target_el = 1;
int32_t ret = 0;
trace_hvf_psci_call(param[0], param[1], param[2], param[3],
@@ -1175,7 +1212,7 @@ static bool hvf_handle_psci_call(CPUState *cpu)
entry = param[2];
context_id = param[3];
ret = arm_set_cpu_on(mpidr, entry, context_id,
- target_el, target_aarch64);
+ hvf_psci_get_target_el(), target_aarch64);
break;
case QEMU_PSCI_0_1_FN_CPU_OFF:
case QEMU_PSCI_0_2_FN_CPU_OFF:
diff --git a/target/arm/hvf_arm.h b/target/arm/hvf_arm.h
index ea82f2691d..bf55e7ae28 100644
--- a/target/arm/hvf_arm.h
+++ b/target/arm/hvf_arm.h
@@ -24,5 +24,8 @@ void hvf_arm_set_cpu_features_from_host(ARMCPU *cpu);
uint32_t hvf_arm_get_default_ipa_bit_size(void);
uint32_t hvf_arm_get_max_ipa_bit_size(void);
+bool hvf_arm_el2_supported(void);
+bool hvf_arm_el2_enabled(void);
+void hvf_arm_el2_enable(bool);
#endif
--
2.39.5 (Apple Git-154)
