diff options
| author | Marc Zyngier | 2018-02-06 18:56:12 +0100 |
|---|---|---|
| committer | Catalin Marinas | 2018-02-06 23:54:01 +0100 |
| commit | 09e6be12effdb33bf7210c8867bbd213b66a499e (patch) | |
| tree | b0557bf7a9651f9207e7e278e3ee6d9917fc17d3 /include/linux/arm-smccc.h | |
| parent | arm/arm64: KVM: Implement PSCI 1.0 support (diff) | |
| download | kernel-qcow2-linux-09e6be12effdb33bf7210c8867bbd213b66a499e.tar.gz kernel-qcow2-linux-09e6be12effdb33bf7210c8867bbd213b66a499e.tar.xz kernel-qcow2-linux-09e6be12effdb33bf7210c8867bbd213b66a499e.zip | |
arm/arm64: KVM: Advertise SMCCC v1.1
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>
Diffstat (limited to 'include/linux/arm-smccc.h')
| -rw-r--r-- | include/linux/arm-smccc.h | 13 |
1 files changed, 13 insertions, 0 deletions
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> |