[PATCH 2/2] arm64: KVM: Add VCPU support for Qualcomm Technologies Kryo ARMv8 CPU
From: Timur Tabi <hidden>
Date: 2015-06-12 21:57:46
Also in:
kvm, linux-arm-msm
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
From: Shanker Donthineni <redacted> 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 <redacted> Signed-off-by: Timur Tabi <redacted> --- 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; }
--
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