[PATCH v4 01/23] arm/arm64: KVM: Add hook for C-based stage2 init
From: Marc Zyngier <hidden>
Date: 2016-02-11 18:40:15
Also in:
kvm, kvmarm, lkml
Subsystem:
arm port, arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Russell King, Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
As we're about to move the stage2 init to C code, introduce some C hooks that will later be populated with arch-specific implementations. Reviewed-by: Christoffer Dall <redacted> Signed-off-by: Marc Zyngier <redacted> --- arch/arm/include/asm/kvm_host.h | 4 ++++ arch/arm/kvm/arm.c | 1 + arch/arm64/include/asm/kvm_host.h | 4 ++++ 3 files changed, 9 insertions(+)
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index f9f2779..f1e86f1 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h@@ -220,6 +220,10 @@ static inline void __cpu_init_hyp_mode(phys_addr_t boot_pgd_ptr, kvm_call_hyp((void*)hyp_stack_ptr, vector_ptr, pgd_ptr); } +static inline void __cpu_init_stage2(void) +{ +} + static inline int kvm_arch_dev_ioctl_check_extension(long ext) { return 0;
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index dda1959..6b76e01 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c@@ -985,6 +985,7 @@ static void cpu_init_hyp_mode(void *dummy) vector_ptr = (unsigned long)__kvm_hyp_vector; __cpu_init_hyp_mode(boot_pgd_ptr, pgd_ptr, hyp_stack_ptr, vector_ptr); + __cpu_init_stage2(); kvm_arm_init_debug(); }
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 689d4c9..fe86cf9 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h@@ -332,6 +332,10 @@ static inline void __cpu_init_hyp_mode(phys_addr_t boot_pgd_ptr, hyp_stack_ptr, vector_ptr); } +static inline void __cpu_init_stage2(void) +{ +} + static inline void kvm_arch_hardware_disable(void) {} static inline void kvm_arch_hardware_unsetup(void) {} static inline void kvm_arch_sync_events(struct kvm *kvm) {}
--
2.1.4