AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-25 06:20:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

arm: KVM: Drop unreachable HYP abort handlers

Browse Source 
Both data and prefetch aborts occuring in HYP lead to a well
deserved panic. Let's get rid of these silly handlers.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
This commit is contained in:
Marc Zyngier 2016-09-06 14:02:14 +01:00 committed by Christoffer Dall
parent 5d7bcf7d64
commit e656a1f91e
1 changed files with 0 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
arch/arm/kvm/handle_exit.c
View File

@ -28,14 +28,6 @@
typedef int (*exit_handle_fn)(struct kvm_vcpu *, struct kvm_run *);
static int handle_svc_hyp(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
/* SVC called from Hyp mode should never get here */
kvm_debug("SVC called from Hyp mode shouldn't go here\n");
BUG();
return -EINVAL; /* Squash warning */
}
static int handle_hvc(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
int ret;
@ -59,22 +51,6 @@ static int handle_smc(struct kvm_vcpu *vcpu, struct kvm_run *run)
return 1;
}
static int handle_pabt_hyp(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
/* The hypervisor should never cause aborts */
kvm_err("Prefetch Abort taken from Hyp mode at %#08lx (HSR: %#08x)\n",
kvm_vcpu_get_hfar(vcpu), kvm_vcpu_get_hsr(vcpu));
return -EFAULT;
}
static int handle_dabt_hyp(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
/* This is either an error in the ws. code or an external abort */
kvm_err("Data Abort taken from Hyp mode at %#08lx (HSR: %#08x)\n",
kvm_vcpu_get_hfar(vcpu), kvm_vcpu_get_hsr(vcpu));
return -EFAULT;
}
/**
* kvm_handle_wfx - handle a WFI or WFE instructions trapped in guests
* @vcpu: the vcpu pointer
@ -112,13 +88,10 @@ static exit_handle_fn arm_exit_handlers[] = {
[HSR_EC_CP14_64] = kvm_handle_cp14_access,
[HSR_EC_CP_0_13] = kvm_handle_cp_0_13_access,
[HSR_EC_CP10_ID] = kvm_handle_cp10_id,
[HSR_EC_SVC_HYP] = handle_svc_hyp,
[HSR_EC_HVC] = handle_hvc,
[HSR_EC_SMC] = handle_smc,
[HSR_EC_IABT] = kvm_handle_guest_abort,
[HSR_EC_IABT_HYP] = handle_pabt_hyp,
[HSR_EC_DABT] = kvm_handle_guest_abort,
[HSR_EC_DABT_HYP] = handle_dabt_hyp,
};
static exit_handle_fn kvm_get_exit_handler(struct kvm_vcpu *vcpu)