diff options
Diffstat (limited to 'virt/kvm/arm/vgic/vgic-its.c')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-its.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index 4660a7d04eea..8c2b3cdcb2c5 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -632,21 +632,22 @@ static bool vgic_its_check_id(struct vgic_its *its, u64 baser, int id) int index; u64 indirect_ptr; gfn_t gfn; + int esz = GITS_BASER_ENTRY_SIZE(baser); if (!(baser & GITS_BASER_INDIRECT)) { phys_addr_t addr; - if (id >= (l1_tbl_size / GITS_BASER_ENTRY_SIZE(baser))) + if (id >= (l1_tbl_size / esz)) return false; - addr = BASER_ADDRESS(baser) + id * GITS_BASER_ENTRY_SIZE(baser); + addr = BASER_ADDRESS(baser) + id * esz; gfn = addr >> PAGE_SHIFT; return kvm_is_visible_gfn(its->dev->kvm, gfn); } /* calculate and check the index into the 1st level */ - index = id / (SZ_64K / GITS_BASER_ENTRY_SIZE(baser)); + index = id / (SZ_64K / esz); if (index >= (l1_tbl_size / sizeof(u64))) return false; @@ -670,8 +671,8 @@ static bool vgic_its_check_id(struct vgic_its *its, u64 baser, int id) indirect_ptr &= GENMASK_ULL(51, 16); /* Find the address of the actual entry */ - index = id % (SZ_64K / GITS_BASER_ENTRY_SIZE(baser)); - indirect_ptr += index * GITS_BASER_ENTRY_SIZE(baser); + index = id % (SZ_64K / esz); + indirect_ptr += index * esz; gfn = indirect_ptr >> PAGE_SHIFT; return kvm_is_visible_gfn(its->dev->kvm, gfn); |