diff options
Diffstat (limited to 'arch/arm64/kvm/hyp')
| -rw-r--r-- | arch/arm64/kvm/hyp/nvhe/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/nvhe/mem_protect.c | 20 |
2 files changed, 13 insertions, 9 deletions
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile index a76522d63c3e..0b0a68b663d4 100644 --- a/arch/arm64/kvm/hyp/nvhe/Makefile +++ b/arch/arm64/kvm/hyp/nvhe/Makefile @@ -12,7 +12,7 @@ asflags-y := -D__KVM_NVHE_HYPERVISOR__ -D__DISABLE_EXPORTS ccflags-y := -D__KVM_NVHE_HYPERVISOR__ -D__DISABLE_EXPORTS -D__DISABLE_TRACE_MMIO__ ccflags-y += -fno-stack-protector \ -DDISABLE_BRANCH_PROFILING \ - $(DISABLE_STACKLEAK_PLUGIN) + $(DISABLE_KSTACK_ERASE) hostprogs := gen-hyprel HOST_EXTRACFLAGS += -I$(objtree)/include diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index 95d7534c9679..8957734d6183 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -479,6 +479,7 @@ static int host_stage2_adjust_range(u64 addr, struct kvm_mem_range *range) { struct kvm_mem_range cur; kvm_pte_t pte; + u64 granule; s8 level; int ret; @@ -496,18 +497,21 @@ static int host_stage2_adjust_range(u64 addr, struct kvm_mem_range *range) return -EPERM; } - do { - u64 granule = kvm_granule_size(level); + for (; level <= KVM_PGTABLE_LAST_LEVEL; level++) { + if (!kvm_level_supports_block_mapping(level)) + continue; + granule = kvm_granule_size(level); cur.start = ALIGN_DOWN(addr, granule); cur.end = cur.start + granule; - level++; - } while ((level <= KVM_PGTABLE_LAST_LEVEL) && - !(kvm_level_supports_block_mapping(level) && - range_included(&cur, range))); + if (!range_included(&cur, range)) + continue; + *range = cur; + return 0; + } - *range = cur; + WARN_ON(1); - return 0; + return -EINVAL; } int host_stage2_idmap_locked(phys_addr_t addr, u64 size, |