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| author | Paolo Bonzini <pbonzini@redhat.com> | 2014-04-30 21:25:09 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-04-30 21:25:09 +0200 |
| commit | a5a5aef451430dbd48f5bf32029b8b98b690074d (patch) | |
| tree | 02525913943b280d0e0ee26a950b92f9b0dc6eb0 /virt | |
| parent | 41c22f626254b9dc0376928cae009e73d1b6a49a (diff) | |
| parent | 30c2117085bc4e05d091cee6eba79f069b41a9cd (diff) | |
| download | lwn-a5a5aef451430dbd48f5bf32029b8b98b690074d.tar.gz lwn-a5a5aef451430dbd48f5bf32029b8b98b690074d.zip | |
Merge tag 'kvm-arm-for-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master
First round of KVM/ARM Fixes for 3.15
Includes vgic fixes, a possible kernel corruption bug due to
misalignment of pages and disabling of KVM in KConfig on big-endian
systems, because the last one breaks the build.
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/vgic.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 47b29834a6b6..56ff9bebb577 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -548,11 +548,10 @@ static bool handle_mmio_cfg_reg(struct kvm_vcpu *vcpu, u32 val; u32 *reg; - offset >>= 1; reg = vgic_bitmap_get_reg(&vcpu->kvm->arch.vgic.irq_cfg, - vcpu->vcpu_id, offset); + vcpu->vcpu_id, offset >> 1); - if (offset & 2) + if (offset & 4) val = *reg >> 16; else val = *reg & 0xffff; @@ -561,13 +560,13 @@ static bool handle_mmio_cfg_reg(struct kvm_vcpu *vcpu, vgic_reg_access(mmio, &val, offset, ACCESS_READ_VALUE | ACCESS_WRITE_VALUE); if (mmio->is_write) { - if (offset < 4) { + if (offset < 8) { *reg = ~0U; /* Force PPIs/SGIs to 1 */ return false; } val = vgic_cfg_compress(val); - if (offset & 2) { + if (offset & 4) { *reg &= 0xffff; *reg |= val << 16; } else { @@ -916,6 +915,7 @@ static void vgic_dispatch_sgi(struct kvm_vcpu *vcpu, u32 reg) case 0: if (!target_cpus) return; + break; case 1: target_cpus = ((1 << nrcpus) - 1) & ~(1 << vcpu_id) & 0xff; @@ -1667,10 +1667,11 @@ static int vgic_ioaddr_assign(struct kvm *kvm, phys_addr_t *ioaddr, if (addr + size < addr) return -EINVAL; + *ioaddr = addr; ret = vgic_ioaddr_overlap(kvm); if (ret) - return ret; - *ioaddr = addr; + *ioaddr = VGIC_ADDR_UNDEF; + return ret; } |