diff options
| author | Anup Patel <anup.patel@linaro.org> | 2014-04-29 11:24:18 +0530 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2014-10-02 17:18:43 +0200 |
| commit | c6debeb5f9cf9a1c1f8867d991563302797e20c3 (patch) | |
| tree | e446fb62536ea93d8b3b4ff2281d456fda8e9e0c /arch/arm/include/asm/kvm_psci.h | |
| parent | 4ccf6abe18fc14863159b2c51a4958214b4c13dc (diff) | |
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>
(cherry picked from commit e8e7fcc5e2710b31ef842ee799db99c07986c364)
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/include/asm/kvm_psci.h')
| -rw-r--r-- | arch/arm/include/asm/kvm_psci.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/include/asm/kvm_psci.h b/arch/arm/include/asm/kvm_psci.h index 4c0e3e1d1597..6bda945d31fa 100644 --- a/arch/arm/include/asm/kvm_psci.h +++ b/arch/arm/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 /* __ARM_KVM_PSCI_H__ */ |