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| author | Marc Zyngier <marc.zyngier@arm.com> | 2012-10-05 15:10:44 +0100 |
|---|---|---|
| committer | Christoffer Dall <cdall@cs.columbia.edu> | 2013-03-06 15:48:44 -0800 |
| commit | e7858c58d52237a4519e2fdb1ce8f2d9805ce0ce (patch) | |
| tree | 551887bf4a54ce5d91de84da75a79a3baac8522b /arch/arm/include/asm/kvm_host.h | |
| parent | 629dc446a49a1c3b4f31a3fdc2c814a7db6c6199 (diff) | |
| download | blackbird-op-linux-e7858c58d52237a4519e2fdb1ce8f2d9805ce0ce.tar.gz blackbird-op-linux-e7858c58d52237a4519e2fdb1ce8f2d9805ce0ce.zip | |
ARM: KVM: move hyp init to kvm_host.h
Make the split of the pgd_ptr an implementation specific thing
by moving the init call to an inline function.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm/include/asm/kvm_host.h')
| -rw-r--r-- | arch/arm/include/asm/kvm_host.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index 24f457aeba4d..f00a557c107a 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -186,4 +186,23 @@ int kvm_arm_coproc_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *); int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run, int exception_index); +static inline void __cpu_init_hyp_mode(unsigned long long pgd_ptr, + unsigned long hyp_stack_ptr, + unsigned long vector_ptr) +{ + unsigned long pgd_low, pgd_high; + + pgd_low = (pgd_ptr & ((1ULL << 32) - 1)); + pgd_high = (pgd_ptr >> 32ULL); + + /* + * Call initialization code, and switch to the full blown + * HYP code. The init code doesn't need to preserve these registers as + * r1-r3 and r12 are already callee save according to the AAPCS. + * Note that we slightly misuse the prototype by casing the pgd_low to + * a void *. + */ + kvm_call_hyp((void *)pgd_low, pgd_high, hyp_stack_ptr, vector_ptr); +} + #endif /* __ARM_KVM_HOST_H__ */ |
