diff options
| author | Dongjiu Geng <gengdongjiu@huawei.com> | 2018-07-19 16:24:22 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-07-21 16:02:30 +0100 |
| commit | b7b27facc7b50a5fce0afaa3df56157136ce181a (patch) | |
| tree | 16536d93e55ccbdc8561c78ffab9d69966859c61 /arch/arm64/include/asm/kvm_emulate.h | |
| parent | 327432c2469e0069679009886556d15eeddeb0cc (diff) | |
arm/arm64: KVM: Add KVM_GET/SET_VCPU_EVENTS
For the migrating VMs, user space may need to know the exception
state. For example, in the machine A, KVM make an SError pending,
when migrate to B, KVM also needs to pend an SError.
This new IOCTL exports user-invisible states related to SError.
Together with appropriate user space changes, user space can get/set
the SError exception state to do migrate/snapshot/suspend.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
[expanded documentation wording]
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/kvm_emulate.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_emulate.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index bfefdd9a72eb..3f8ab8da9a2b 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -93,6 +93,11 @@ static inline void vcpu_set_wfe_traps(struct kvm_vcpu *vcpu) vcpu->arch.hcr_el2 |= HCR_TWE; } +static inline unsigned long vcpu_get_vsesr(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.vsesr_el2; +} + static inline void vcpu_set_vsesr(struct kvm_vcpu *vcpu, u64 vsesr) { vcpu->arch.vsesr_el2 = vsesr; |