Introduce KVM_MEM_SLOTS_NUM macro to instead of KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS
Signed-off-by: Xiao Guangrong <[email protected]> --- arch/x86/include/asm/kvm_host.h | 4 +++- arch/x86/kvm/mmu.c | 2 +- include/linux/kvm_host.h | 7 +++++-- virt/kvm/kvm_main.c | 2 +- 4 files changed, 10 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 6d83264..b80a310 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -31,6 +31,8 @@ #define KVM_MEMORY_SLOTS 32 /* memory slots that does not exposed to userspace */ #define KVM_PRIVATE_MEM_SLOTS 4 +#define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS) + #define KVM_MMIO_SIZE 16 #define KVM_PIO_PAGE_OFFSET 1 @@ -228,7 +230,7 @@ struct kvm_mmu_page { * One bit set per slot which has memory * in this shadow page. */ - DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS); + DECLARE_BITMAP(slot_bitmap, KVM_MEM_SLOTS_NUM); bool unsync; int root_count; /* Currently serving as active root */ unsigned int unsync_children; diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index a9b3a32..e6c2755 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1337,7 +1337,7 @@ static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu, PAGE_SIZE); set_page_private(virt_to_page(sp->spt), (unsigned long)sp); list_add(&sp->link, &vcpu->kvm->arch.active_mmu_pages); - bitmap_zero(sp->slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS); + bitmap_zero(sp->slot_bitmap, KVM_MEM_SLOTS_NUM); sp->parent_ptes = 0; mmu_page_add_parent_pte(vcpu, sp, parent_pte); kvm_mod_used_mmu_pages(vcpu->kvm, +1); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index c6a2ec9..a42d50b 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -226,11 +226,14 @@ struct kvm_irq_routing_table {}; #endif +#ifndef KVM_MEM_SLOTS_NUM +#define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS) +#endif + struct kvm_memslots { int nmemslots; u64 generation; - struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + - KVM_PRIVATE_MEM_SLOTS]; + struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM]; }; struct kvm { diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index d9cfb78..eb55a11 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -662,7 +662,7 @@ int __kvm_set_memory_region(struct kvm *kvm, (void __user *)(unsigned long)mem->userspace_addr, mem->memory_size))) goto out; - if (mem->slot >= KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS) + if (mem->slot >= KVM_MEM_SLOTS_NUM) goto out; if (mem->guest_phys_addr + mem->memory_size < mem->guest_phys_addr) goto out; -- 1.7.7.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
