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| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2011-11-24 17:37:48 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-12-27 11:17:34 +0200 |
| commit | 93a5cef07d686a0341d056b0f930a762c7174a13 (patch) | |
| tree | 8db1ec00bd74a7297b32abf4d7463d845c34fea8 | |
| parent | ff227392cd7b858b2b04732e02697122fd1b35b0 (diff) | |
| download | linux-3.10-93a5cef07d686a0341d056b0f930a762c7174a13.tar.gz linux-3.10-93a5cef07d686a0341d056b0f930a762c7174a13.tar.bz2 linux-3.10-93a5cef07d686a0341d056b0f930a762c7174a13.zip | |
KVM: introduce KVM_MEM_SLOTS_NUM macro
Introduce KVM_MEM_SLOTS_NUM macro to instead of
KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 4 | ||||
| -rw-r--r-- | arch/x86/kvm/mmu.c | 2 | ||||
| -rw-r--r-- | include/linux/kvm_host.h | 7 | ||||
| -rw-r--r-- | 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 69b65254748..1769f3dde61 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 aecdea265f7..715dcb4fb79 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1349,7 +1349,7 @@ 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 7c654aa46b6..924df0d7ac5 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -227,11 +227,14 @@ 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 af5c988cafc..9ad94c9996e 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -663,7 +663,7 @@ 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; |