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ARM: KVM: abstract IL decoding away 

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
hifive-unleashed-5.1
Marc Zyngier 2012-09-18 12:07:06 +01:00 committed by Christoffer Dall
parent a7123377e7
commit 23b415d61a
4 changed files with 9 additions and 4 deletions
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6
arch/arm/include/asm/kvm_emulate.h
View File

@ -136,4 +136,10 @@ static inline int kvm_vcpu_dabt_get_as(struct kvm_vcpu *vcpu)
}
}
/* This one is not specific to Data Abort */
static inline bool kvm_vcpu_trap_il_is32bit(struct kvm_vcpu *vcpu)
{
return kvm_vcpu_get_hsr(vcpu) & HSR_IL;
}
#endif /* __ARM_KVM_EMULATE_H__ */

3
arch/arm/kvm/arm.c
View File

@ -624,8 +624,7 @@ static int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
* that fail their condition code check"
*/
if (!kvm_condition_valid(vcpu)) {
bool is_wide = kvm_vcpu_get_hsr(vcpu) & HSR_IL;
kvm_skip_instr(vcpu, is_wide);
kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
return 1;
}

2
arch/arm/kvm/coproc.c
View File

@ -293,7 +293,7 @@ static int emulate_cp15(struct kvm_vcpu *vcpu,
if (likely(r->access(vcpu, params, r))) {
/* Skip instruction, since it was emulated */
kvm_skip_instr(vcpu, (kvm_vcpu_get_hsr(vcpu) >> 25) & 1);
kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
return 1;
}
/* If access function fails, it should complain. */

2
arch/arm/kvm/mmio.c
View File

@ -101,7 +101,7 @@ static int decode_hsr(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
* The MMIO instruction is emulated and should not be re-executed
* in the guest.
*/
kvm_skip_instr(vcpu, (kvm_vcpu_get_hsr(vcpu) >> 25) & 1);
kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
return 0;
}