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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-08-28 10:37:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-08-28 10:37:21 -0700 |
| commit | 9cf6b756cdf2cd38b8b0dac2567f7c6daf5e79d5 (patch) | |
| tree | eb8af4cbe71eb8b6b8428a078abcbff8cc27a29e /virt/kvm/arm/vgic/vgic-v2.c | |
| parent | 9e8312f5e160ade069e131d54ab8652cf0e86e1a (diff) | |
| parent | 82e40f558de566fdee214bec68096bbd5e64a6a4 (diff) | |
| download | linux-9cf6b756cdf2cd38b8b0dac2567f7c6daf5e79d5.tar.gz | |
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Hot on the heels of our last set of fixes are a few more for -rc7.
Two of them are fixing issues with our virtual interrupt controller
implementation in KVM/arm, while the other is a longstanding but
straightforward kallsyms fix which was been acked by Masami and
resolves an initialisation failure in kprobes observed on arm64.
- Fix GICv2 emulation bug (KVM)
- Fix deadlock in virtual GIC interrupt injection code (KVM)
- Fix kprobes blacklist init failure due to broken kallsyms lookup"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
KVM: arm/arm64: vgic-v2: Handle SGI bits in GICD_I{S,C}PENDR0 as WI
KVM: arm/arm64: vgic: Fix potential deadlock when ap_list is long
kallsyms: Don't let kallsyms_lookup_size_offset() fail on retrieving the first symbol
Diffstat (limited to 'virt/kvm/arm/vgic/vgic-v2.c')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-v2.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/virt/kvm/arm/vgic/vgic-v2.c b/virt/kvm/arm/vgic/vgic-v2.c index 96aab77d0471..b00aa304c260 100644 --- a/virt/kvm/arm/vgic/vgic-v2.c +++ b/virt/kvm/arm/vgic/vgic-v2.c @@ -184,7 +184,10 @@ void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr) if (vgic_irq_is_sgi(irq->intid)) { u32 src = ffs(irq->source); - BUG_ON(!src); + if (WARN_RATELIMIT(!src, "No SGI source for INTID %d\n", + irq->intid)) + return; + val |= (src - 1) << GICH_LR_PHYSID_CPUID_SHIFT; irq->source &= ~(1 << (src - 1)); if (irq->source) { |