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| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-02-06 17:56:12 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-16 20:06:43 +0100 |
| commit | 68894ca72b4d0fed30a4d3296acb63e001bab864 (patch) | |
| tree | 2e8b44947be13383d7bd2feda62987870c90dcb3 /include | |
| parent | 9aecea071f020a8b9f1696ea1fa66f0d44cd9210 (diff) | |
| download | linux-68894ca72b4d0fed30a4d3296acb63e001bab864.tar.gz linux-68894ca72b4d0fed30a4d3296acb63e001bab864.tar.bz2 linux-68894ca72b4d0fed30a4d3296acb63e001bab864.zip | |
arm/arm64: KVM: Advertise SMCCC v1.1
Commit 09e6be12effd upstream.
The new SMC Calling Convention (v1.1) allows for a reduced overhead
when calling into the firmware, and provides a new feature discovery
mechanism.
Make it visible to KVM guests.
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/kvm/arm_psci.h | 2 | ||||
| -rw-r--r-- | include/linux/arm-smccc.h | 13 |
2 files changed, 14 insertions, 1 deletions
diff --git a/include/kvm/arm_psci.h b/include/kvm/arm_psci.h index 32360432cff5..ed1dd8088f1c 100644 --- a/include/kvm/arm_psci.h +++ b/include/kvm/arm_psci.h @@ -27,6 +27,6 @@ #define KVM_ARM_PSCI_LATEST KVM_ARM_PSCI_1_0 int kvm_psci_version(struct kvm_vcpu *vcpu); -int kvm_psci_call(struct kvm_vcpu *vcpu); +int kvm_hvc_call_handler(struct kvm_vcpu *vcpu); #endif /* __KVM_ARM_PSCI_H__ */ diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index 4c5bca38c653..dc68aa5a7261 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -60,6 +60,19 @@ #define ARM_SMCCC_QUIRK_NONE 0 #define ARM_SMCCC_QUIRK_QCOM_A6 1 /* Save/restore register a6 */ +#define ARM_SMCCC_VERSION_1_0 0x10000 +#define ARM_SMCCC_VERSION_1_1 0x10001 + +#define ARM_SMCCC_VERSION_FUNC_ID \ + ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ + ARM_SMCCC_SMC_32, \ + 0, 0) + +#define ARM_SMCCC_ARCH_FEATURES_FUNC_ID \ + ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ + ARM_SMCCC_SMC_32, \ + 0, 1) + #ifndef __ASSEMBLY__ #include <linux/linkage.h> |