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| author | Anup Patel <anup.patel@linaro.org> | 2014-04-29 07:54:18 +0200 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2014-04-30 13:18:57 +0200 |
| commit | e8e7fcc5e2710b31ef842ee799db99c07986c364 (patch) | |
| tree | 2f9005ad128030c359da457486de308260ebba89 /arch/arm64/include/asm/kvm_psci.h | |
| parent | KVM: Documentation: Add info regarding KVM_ARM_VCPU_PSCI_0_2 feature (diff) | |
| download | linux-e8e7fcc5e2710b31ef842ee799db99c07986c364.tar.xz linux-e8e7fcc5e2710b31ef842ee799db99c07986c364.zip | |
ARM/ARM64: KVM: Make kvm_psci_call() return convention more flexible
Currently, the kvm_psci_call() returns 'true' or 'false' based on whether
the PSCI function call was handled successfully or not. This does not help
us emulate system-level PSCI functions where the actual emulation work will
be done by user space (QEMU or KVMTOOL). Examples of such system-level PSCI
functions are: PSCI v0.2 SYSTEM_OFF and SYSTEM_RESET.
This patch updates kvm_psci_call() to return three types of values:
1) > 0 (success)
2) = 0 (success but exit to user space)
3) < 0 (errors)
Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/include/asm/kvm_psci.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_psci.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/kvm_psci.h b/arch/arm64/include/asm/kvm_psci.h index e25c658a757b..bc39e557c56c 100644 --- a/arch/arm64/include/asm/kvm_psci.h +++ b/arch/arm64/include/asm/kvm_psci.h @@ -22,6 +22,6 @@ #define KVM_ARM_PSCI_0_2 2 int kvm_psci_version(struct kvm_vcpu *vcpu); -bool kvm_psci_call(struct kvm_vcpu *vcpu); +int kvm_psci_call(struct kvm_vcpu *vcpu); #endif /* __ARM64_KVM_PSCI_H__ */ |