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author | Paolo Bonzini <pbonzini@redhat.com> | 2019-02-13 21:39:24 +0300 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-02-13 21:39:24 +0300 |
commit | 08e16754cad2298f8cb58bd0f99e658da54c327d (patch) | |
tree | ef4d141c82840ecdc3b234a569a4df8442b7dcea /virt/kvm/arm/arm.c | |
parent | bc44121190aea96de171408310db3d3c87e2cc11 (diff) | |
parent | 7d82602909ed9c73b34ad26f05d10db4850a4f8c (diff) | |
download | linux-08e16754cad2298f8cb58bd0f99e658da54c327d.tar.xz |
Merge tag 'kvm-arm-fixes-for-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master
KVM/ARM fixes for 5.0:
- Fix the way we reset vcpus, plugging the race that could happen on VHE
- Fix potentially inconsistent group setting for private interrupts
- Don't generate UNDEF when LORegion feature is present
- Relax the restriction on using stage2 PUD huge mapping
- Turn some spinlocks into raw_spinlocks to help RT compliance
Diffstat (limited to 'virt/kvm/arm/arm.c')
-rw-r--r-- | virt/kvm/arm/arm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index 9e350fd34504..9c486fad3f9f 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -626,6 +626,13 @@ static void vcpu_req_sleep(struct kvm_vcpu *vcpu) /* Awaken to handle a signal, request we sleep again later. */ kvm_make_request(KVM_REQ_SLEEP, vcpu); } + + /* + * Make sure we will observe a potential reset request if we've + * observed a change to the power state. Pairs with the smp_wmb() in + * kvm_psci_vcpu_on(). + */ + smp_rmb(); } static int kvm_vcpu_initialized(struct kvm_vcpu *vcpu) @@ -639,6 +646,9 @@ static void check_vcpu_requests(struct kvm_vcpu *vcpu) if (kvm_check_request(KVM_REQ_SLEEP, vcpu)) vcpu_req_sleep(vcpu); + if (kvm_check_request(KVM_REQ_VCPU_RESET, vcpu)) + kvm_reset_vcpu(vcpu); + /* * Clear IRQ_PENDING requests that were made to guarantee * that a VCPU sees new virtual interrupts. |