From: Shanker Donthineni <shankerd@xxxxxxxxxxxxxx>
This patch enables assignment of 32/64bit guest VCPU to
Qualcomm Technologies ARMv8 CPU. Added KVM_ARM_TARGET_QCOM_KRYO
to the KVM target list and modified vm_target_cpu() to return
KVM_ARM_TARGET_QCOM_KRYO when CPU running in AArch64 mode.
Signed-off-by: Shanker Donthineni <shankerd@xxxxxxxxxxxxxx>
Signed-off-by: Timur Tabi <timur@xxxxxxxxxxxxxx>
---
arch/arm64/include/uapi/asm/kvm.h | 3 ++-
arch/arm64/kvm/guest.c | 6 ++++++
arch/arm64/kvm/sys_regs_generic_v8.c | 2 ++
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index d268320..426933e 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -59,8 +59,9 @@ struct kvm_regs {
#define KVM_ARM_TARGET_CORTEX_A57 2
#define KVM_ARM_TARGET_XGENE_POTENZA 3
#define KVM_ARM_TARGET_CORTEX_A53 4
+#define KVM_ARM_TARGET_QCOM_KRYO 5
-#define KVM_ARM_NUM_TARGETS 5
+#define KVM_ARM_NUM_TARGETS 6
/* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */
#define KVM_ARM_DEVICE_TYPE_SHIFT 0
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index 9535bd5..836cf16 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -291,6 +291,12 @@ int __attribute_const__ kvm_target_cpu(void)
return KVM_ARM_TARGET_XGENE_POTENZA;
};
break;
+ case ARM_CPU_IMP_QCOM:
+ switch (part_number & QCOM_CPU_PART_MASK) {
+ case QCOM_CPU_PART_KRYO:
+ return KVM_ARM_TARGET_QCOM_KRYO;
+ }
+ break;
};
return -EINVAL;
diff --git a/arch/arm64/kvm/sys_regs_generic_v8.c b/arch/arm64/kvm/sys_regs_generic_v8.c
index 475fd29..3712ea8 100644
--- a/arch/arm64/kvm/sys_regs_generic_v8.c
+++ b/arch/arm64/kvm/sys_regs_generic_v8.c
@@ -94,6 +94,8 @@ static int __init sys_reg_genericv8_init(void)
&genericv8_target_table);
kvm_register_target_sys_reg_table(KVM_ARM_TARGET_XGENE_POTENZA,
&genericv8_target_table);
+ kvm_register_target_sys_reg_table(KVM_ARM_TARGET_QCOM_KRYO,
+ &genericv8_target_table);
return 0;
}
--
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.
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