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authorMarc Zyngier <marc.zyngier@arm.com>2017-04-03 19:37:56 +0100
committerChristoffer Dall <cdall@linaro.org>2017-04-09 07:49:30 -0700
commita92ce8f6ab6cb16006f8d73cb0f522079276fd91 (patch)
tree6ae4101cb4188c7f33fe96e3929cbc5e01e623f3
parentARM: KVM: Allow the main HYP code to use the init hyp stub implementation (diff)
downloadlinux-dev-a92ce8f6ab6cb16006f8d73cb0f522079276fd91.tar.xz
linux-dev-a92ce8f6ab6cb16006f8d73cb0f522079276fd91.zip
ARM: KVM: Convert __cpu_reset_hyp_mode to using __hyp_reset_vectors
We are now able to use the hyp stub to reset HYP mode. Time to kiss __kvm_hyp_reset goodbye, and use __hyp_reset_vectors. Tested-by: Keerthy <j-keerthy@ti.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@linaro.org>
-rw-r--r--arch/arm/include/asm/kvm_asm.h2
-rw-r--r--arch/arm/include/asm/kvm_host.h2
-rw-r--r--arch/arm/kvm/init.S2
3 files changed, 1 insertions, 5 deletions
diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h
index dd16044b34b6..eae11b3e98fc 100644
--- a/arch/arm/include/asm/kvm_asm.h
+++ b/arch/arm/include/asm/kvm_asm.h
@@ -72,8 +72,6 @@ extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);
extern void __init_stage2_translation(void);
-extern void __kvm_hyp_reset(unsigned long);
-
extern u64 __vgic_v3_get_ich_vtr_el2(void);
extern u64 __vgic_v3_read_vmcr(void);
extern void __vgic_v3_write_vmcr(u32 vmcr);
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 31ee468ce667..adea30753185 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -273,7 +273,7 @@ static inline void __cpu_init_stage2(void)
static inline void __cpu_reset_hyp_mode(unsigned long vector_ptr,
phys_addr_t phys_idmap_start)
{
- kvm_call_hyp((void *)virt_to_idmap(__kvm_hyp_reset), vector_ptr);
+ __hyp_reset_vectors();
}
static inline int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext)
diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S
index d6b2f496fa13..fb336090ee9c 100644
--- a/arch/arm/kvm/init.S
+++ b/arch/arm/kvm/init.S
@@ -129,7 +129,6 @@ ENTRY(__kvm_handle_stub_hvc)
1: cmp r0, #HVC_RESET_VECTORS
bne 1f
-ENTRY(__kvm_hyp_reset)
/* We're now in idmap, disable MMU */
mrc p15, 4, r1, c1, c0, 0 @ HSCTLR
ldr r0, =(HSCTLR_M | HSCTLR_A | HSCTLR_C | HSCTLR_I)
@@ -151,7 +150,6 @@ ENTRY(__kvm_hyp_reset)
exit:
eret
ENDPROC(__kvm_handle_stub_hvc)
-ENDPROC(__kvm_hyp_reset)
.ltorg