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Date: Mon, 03 Dec 2012 16:39:12 -0700
From: Alex Williamson <alex.williamson@...hat.com>
To: mtosatti@...hat.com, kvm@...r.kernel.org, gleb@...hat.com
Cc: linux-kernel@...r.kernel.org
Subject: [RFC PATCH 1/6] kvm: Rename KVM_MEMORY_SLOTS -> KVM_USER_MEM_SLOTS
It's easy to confuse KVM_MEMORY_SLOTS and KVM_MEM_SLOTS_NUM. One is
the user accessible slots and the other is user + private. Make this
more obvious.
Signed-off-by: Alex Williamson <alex.williamson@...hat.com>
---
arch/ia64/include/asm/kvm_host.h | 2 +-
arch/ia64/kvm/kvm-ia64.c | 2 +-
arch/powerpc/include/asm/kvm_host.h | 4 ++--
arch/powerpc/kvm/book3s_hv.c | 2 +-
arch/s390/include/asm/kvm_host.h | 2 +-
arch/x86/include/asm/kvm_host.h | 4 ++--
arch/x86/include/asm/vmx.h | 6 +++---
arch/x86/kvm/x86.c | 6 +++---
include/linux/kvm_host.h | 2 +-
virt/kvm/kvm_main.c | 8 ++++----
10 files changed, 19 insertions(+), 19 deletions(-)
diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h
index 6d6a5ac..48d7b0e 100644
--- a/arch/ia64/include/asm/kvm_host.h
+++ b/arch/ia64/include/asm/kvm_host.h
@@ -23,7 +23,7 @@
#ifndef __ASM_KVM_HOST_H
#define __ASM_KVM_HOST_H
-#define KVM_MEMORY_SLOTS 32
+#define KVM_USER_MEM_SLOTS 32
/* memory slots that does not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 4
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 8b3a9c0..f1a46bd 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1831,7 +1831,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
mutex_lock(&kvm->slots_lock);
r = -EINVAL;
- if (log->slot >= KVM_MEMORY_SLOTS)
+ if (log->slot >= KVM_USER_MEM_SLOTS)
goto out;
memslot = id_to_memslot(kvm->memslots, log->slot);
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 28e8f5e..5eb1dd8 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -37,10 +37,10 @@
#define KVM_MAX_VCPUS NR_CPUS
#define KVM_MAX_VCORES NR_CPUS
-#define KVM_MEMORY_SLOTS 32
+#define KVM_USER_MEM_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_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
#ifdef CONFIG_KVM_MMIO
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 721d460..75ce80e 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -1262,7 +1262,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
mutex_lock(&kvm->slots_lock);
r = -EINVAL;
- if (log->slot >= KVM_MEMORY_SLOTS)
+ if (log->slot >= KVM_USER_MEM_SLOTS)
goto out;
memslot = id_to_memslot(kvm->memslots, log->slot);
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index b784154..ac33432 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -20,7 +20,7 @@
#include <asm/cpu.h>
#define KVM_MAX_VCPUS 64
-#define KVM_MEMORY_SLOTS 32
+#define KVM_USER_MEM_SLOTS 32
/* memory slots that does not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 4
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b2e11f4..e619519 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -31,10 +31,10 @@
#define KVM_MAX_VCPUS 254
#define KVM_SOFT_MAX_VCPUS 160
-#define KVM_MEMORY_SLOTS 32
+#define KVM_USER_MEM_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_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
#define KVM_MMIO_SIZE 16
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 36ec21c..72932d2 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -427,9 +427,9 @@ enum vmcs_field {
#define AR_RESERVD_MASK 0xfffe0f00
-#define TSS_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 0)
-#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 1)
-#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 2)
+#define TSS_PRIVATE_MEMSLOT (KVM_USER_MEM_SLOTS + 0)
+#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT (KVM_USER_MEM_SLOTS + 1)
+#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT (KVM_USER_MEM_SLOTS + 2)
#define VMX_NR_VPIDS (1 << 16)
#define VMX_VPID_EXTENT_SINGLE_CONTEXT 1
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4f76417..1aa3fae 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2204,7 +2204,7 @@ int kvm_dev_ioctl_check_extension(long ext)
r = KVM_MAX_VCPUS;
break;
case KVM_CAP_NR_MEMSLOTS:
- r = KVM_MEMORY_SLOTS;
+ r = KVM_USER_MEM_SLOTS;
break;
case KVM_CAP_PV_MMU: /* obsolete */
r = 0;
@@ -3135,7 +3135,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
mutex_lock(&kvm->slots_lock);
r = -EINVAL;
- if (log->slot >= KVM_MEMORY_SLOTS)
+ if (log->slot >= KVM_USER_MEM_SLOTS)
goto out;
memslot = id_to_memslot(kvm->memslots, log->slot);
@@ -6449,7 +6449,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
int map_flags = MAP_PRIVATE | MAP_ANONYMOUS;
/* Prevent internal slot pages from being moved by fork()/COW. */
- if (memslot->id >= KVM_MEMORY_SLOTS)
+ if (memslot->id >= KVM_USER_MEM_SLOTS)
map_flags = MAP_SHARED | MAP_ANONYMOUS;
/*To keep backward compatibility with older userspace,
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ecc5543..fb9354d 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -299,7 +299,7 @@ struct kvm_irq_routing_table {};
#endif
#ifndef KVM_MEM_SLOTS_NUM
-#define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
+#define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
#endif
/*
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 6e8fa7e..48d3ede 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -761,7 +761,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
/* Check for overlaps */
r = -EEXIST;
kvm_for_each_memslot(slot, kvm->memslots) {
- if (slot->id >= KVM_MEMORY_SLOTS || slot == memslot)
+ if (slot->id >= KVM_USER_MEM_SLOTS || slot == memslot)
continue;
if (!((base_gfn + npages <= slot->base_gfn) ||
(base_gfn >= slot->base_gfn + slot->npages)))
@@ -879,7 +879,7 @@ int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
kvm_userspace_memory_region *mem,
int user_alloc)
{
- if (mem->slot >= KVM_MEMORY_SLOTS)
+ if (mem->slot >= KVM_USER_MEM_SLOTS)
return -EINVAL;
return kvm_set_memory_region(kvm, mem, user_alloc);
}
@@ -893,7 +893,7 @@ int kvm_get_dirty_log(struct kvm *kvm,
unsigned long any = 0;
r = -EINVAL;
- if (log->slot >= KVM_MEMORY_SLOTS)
+ if (log->slot >= KVM_USER_MEM_SLOTS)
goto out;
memslot = id_to_memslot(kvm->memslots, log->slot);
@@ -939,7 +939,7 @@ int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
{
struct kvm_memory_slot *memslot = gfn_to_memslot(kvm, gfn);
- if (!memslot || memslot->id >= KVM_MEMORY_SLOTS ||
+ if (!memslot || memslot->id >= KVM_USER_MEM_SLOTS ||
memslot->flags & KVM_MEMSLOT_INVALID)
return 0;
--
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