When injecting a fault into a 32bit guest, it seems rather idiotic
to also inject a 64bit fault that is only going to corrupt the
guest state, and lead to a situation where we restore an illegal
context.
Just fix the stupid bug that has been there from day 1.
Cc: stable@xxxxxxxxxxxxxxx
Reported-by: Russell King <linux@xxxxxxxxxxxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
Will: Paolo being on holiday, do you mind merging this one
via your tree?
Thanks,
M.
arch/arm64/kvm/inject_fault.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
index f02530e..85c5715 100644
--- a/arch/arm64/kvm/inject_fault.c
+++ b/arch/arm64/kvm/inject_fault.c
@@ -168,8 +168,8 @@ void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr)
{
if (!(vcpu->arch.hcr_el2 & HCR_RW))
inject_abt32(vcpu, false, addr);
-
- inject_abt64(vcpu, false, addr);
+ else
+ inject_abt64(vcpu, false, addr);
}
/**
@@ -184,8 +184,8 @@ void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr)
{
if (!(vcpu->arch.hcr_el2 & HCR_RW))
inject_abt32(vcpu, true, addr);
-
- inject_abt64(vcpu, true, addr);
+ else
+ inject_abt64(vcpu, true, addr);
}
/**
@@ -198,6 +198,6 @@ void kvm_inject_undefined(struct kvm_vcpu *vcpu)
{
if (!(vcpu->arch.hcr_el2 & HCR_RW))
inject_undef32(vcpu);
-
- inject_undef64(vcpu);
+ else
+ inject_undef64(vcpu);
}
--
2.1.4
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