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authorMarc Zyngier <marc.zyngier@arm.com>2016-02-01 17:54:35 +0000
committerMarc Zyngier <marc.zyngier@arm.com>2016-02-29 18:34:12 +0000
commit35a2491a624af1fa7ab6990639f5246cd5f12592 (patch)
tree9f4fd545b06a93f5844c33510efadc03bd1a07e1
parentfc77dbd34c5c99bce46d40a2491937c3bcbd10af (diff)
downloadlinux-35a2491a624af1fa7ab6990639f5246cd5f12592.tar.bz2
arm/arm64: KVM: Add hook for C-based stage2 init
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 <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
-rw-r--r--arch/arm/include/asm/kvm_host.h4
-rw-r--r--arch/arm/kvm/arm.c1
-rw-r--r--arch/arm64/include/asm/kvm_host.h4
3 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index f9f27792d8ed..f1e86f1eb2e5 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 dda1959f0dde..6b76e0152e58 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 689d4c95e12f..fe86cf9f288b 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) {}