[RFC 12/18] powerpc/kvm: Gather HPT related variables into sub-structure
David Gibson
david at gibson.dropbear.id.au
Thu Mar 3 12:59:43 AEDT 2016
Currently, the powerpc kvm_arch structure contains a number of variables
tracking the state of the guest's hashed page table (HPT) in KVM HV. This
patch gathers them all together into a single kvm_hpt_info substructure.
This makes life more convenient for the upcoming HPT resizing
implementation.
Signed-off-by: David Gibson <david at gibson.dropbear.id.au>
# Conflicts:
# arch/powerpc/kvm/book3s_64_mmu_hv.c
---
arch/powerpc/include/asm/kvm_host.h | 16 ++++---
arch/powerpc/kvm/book3s_64_mmu_hv.c | 90 ++++++++++++++++++-------------------
arch/powerpc/kvm/book3s_hv.c | 2 +-
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 62 ++++++++++++-------------
4 files changed, 87 insertions(+), 83 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 9d08d8c..c32413a 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -223,11 +223,19 @@ struct kvm_arch_memory_slot {
#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
};
+struct kvm_hpt_info {
+ unsigned long virt;
+ struct revmap_entry *rev;
+ unsigned long npte;
+ unsigned long mask;
+ u32 order;
+ int cma;
+};
+
struct kvm_arch {
unsigned int lpid;
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
- unsigned long hpt_virt;
- struct revmap_entry *revmap;
+ struct kvm_hpt_info hpt;
unsigned int host_lpid;
unsigned long host_lpcr;
unsigned long sdr1;
@@ -236,14 +244,10 @@ struct kvm_arch {
unsigned long lpcr;
unsigned long vrma_slb_v;
int hpte_setup_done;
- u32 hpt_order;
atomic_t vcpus_running;
u32 online_vcores;
- unsigned long hpt_npte;
- unsigned long hpt_mask;
atomic_t hpte_mod_interest;
cpumask_t need_tlb_flush;
- int hpt_cma_alloc;
struct dentry *debugfs_dir;
struct dentry *htab_dentry;
#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 157285b0..2ba9d99 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -61,12 +61,12 @@ long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp)
order = PPC_MIN_HPT_ORDER;
}
- kvm->arch.hpt_cma_alloc = 0;
+ kvm->arch.hpt.cma = 0;
page = kvm_alloc_hpt_cma(1ul << (order - PAGE_SHIFT));
if (page) {
hpt = (unsigned long)pfn_to_kaddr(page_to_pfn(page));
memset((void *)hpt, 0, (1ul << order));
- kvm->arch.hpt_cma_alloc = 1;
+ kvm->arch.hpt.cma = 1;
}
/* Lastly try successively smaller sizes from the page allocator */
@@ -81,20 +81,20 @@ long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp)
if (!hpt)
return -ENOMEM;
- kvm->arch.hpt_virt = hpt;
- kvm->arch.hpt_order = order;
+ kvm->arch.hpt.virt = hpt;
+ kvm->arch.hpt.order = order;
/* HPTEs are 2**4 bytes long */
- kvm->arch.hpt_npte = 1ul << (order - 4);
+ kvm->arch.hpt.npte = 1ul << (order - 4);
/* 128 (2**7) bytes in each HPTEG */
- kvm->arch.hpt_mask = (1ul << (order - 7)) - 1;
+ kvm->arch.hpt.mask = (1ul << (order - 7)) - 1;
/* Allocate reverse map array */
- rev = vmalloc(sizeof(struct revmap_entry) * kvm->arch.hpt_npte);
+ rev = vmalloc(sizeof(struct revmap_entry) * kvm->arch.hpt.npte);
if (!rev) {
pr_err("kvmppc_alloc_hpt: Couldn't alloc reverse map array\n");
goto out_freehpt;
}
- kvm->arch.revmap = rev;
+ kvm->arch.hpt.rev = rev;
kvm->arch.sdr1 = __pa(hpt) | (order - 18);
pr_info("KVM guest htab at %lx (order %ld), LPID %x\n",
@@ -105,7 +105,7 @@ long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp)
return 0;
out_freehpt:
- if (kvm->arch.hpt_cma_alloc)
+ if (kvm->arch.hpt.cma)
kvm_free_hpt_cma(page, 1 << (order - PAGE_SHIFT));
else
free_pages(hpt, order - PAGE_SHIFT);
@@ -127,10 +127,10 @@ long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp)
goto out;
}
}
- if (kvm->arch.hpt_virt) {
- order = kvm->arch.hpt_order;
+ if (kvm->arch.hpt.virt) {
+ order = kvm->arch.hpt.order;
/* Set the entire HPT to 0, i.e. invalid HPTEs */
- memset((void *)kvm->arch.hpt_virt, 0, 1ul << order);
+ memset((void *)kvm->arch.hpt.virt, 0, 1ul << order);
/*
* Reset all the reverse-mapping chains for all memslots
*/
@@ -151,13 +151,13 @@ long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp)
void kvmppc_free_hpt(struct kvm *kvm)
{
kvmppc_free_lpid(kvm->arch.lpid);
- vfree(kvm->arch.revmap);
- if (kvm->arch.hpt_cma_alloc)
- kvm_free_hpt_cma(virt_to_page(kvm->arch.hpt_virt),
- 1 << (kvm->arch.hpt_order - PAGE_SHIFT));
+ vfree(kvm->arch.hpt.rev);
+ if (kvm->arch.hpt.cma)
+ kvm_free_hpt_cma(virt_to_page(kvm->arch.hpt.virt),
+ 1 << (kvm->arch.hpt.order - PAGE_SHIFT));
else
- free_pages(kvm->arch.hpt_virt,
- kvm->arch.hpt_order - PAGE_SHIFT);
+ free_pages(kvm->arch.hpt.virt,
+ kvm->arch.hpt.order - PAGE_SHIFT);
}
/* Bits in first HPTE dword for pagesize 4k, 64k or 16M */
@@ -192,8 +192,8 @@ void kvmppc_map_vrma(struct kvm_vcpu *vcpu, struct kvm_memory_slot *memslot,
if (npages > 1ul << (40 - porder))
npages = 1ul << (40 - porder);
/* Can't use more than 1 HPTE per HPTEG */
- if (npages > kvm->arch.hpt_mask + 1)
- npages = kvm->arch.hpt_mask + 1;
+ if (npages > kvm->arch.hpt.mask + 1)
+ npages = kvm->arch.hpt.mask + 1;
hp0 = HPTE_V_1TB_SEG | (VRMA_VSID << (40 - 16)) |
HPTE_V_BOLTED | hpte0_pgsize_encoding(psize);
@@ -203,7 +203,7 @@ void kvmppc_map_vrma(struct kvm_vcpu *vcpu, struct kvm_memory_slot *memslot,
for (i = 0; i < npages; ++i) {
addr = i << porder;
/* can't use hpt_hash since va > 64 bits */
- hash = (i ^ (VRMA_VSID ^ (VRMA_VSID << 25))) & kvm->arch.hpt_mask;
+ hash = (i ^ (VRMA_VSID ^ (VRMA_VSID << 25))) & kvm->arch.hpt.mask;
/*
* We assume that the hash table is empty and no
* vcpus are using it at this stage. Since we create
@@ -336,9 +336,9 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
preempt_enable();
return -ENOENT;
}
- hptep = (__be64 *)(kvm->arch.hpt_virt + (index << 4));
+ hptep = (__be64 *)(kvm->arch.hpt.virt + (index << 4));
v = be64_to_cpu(hptep[0]) & ~HPTE_V_HVLOCK;
- gr = kvm->arch.revmap[index].guest_rpte;
+ gr = kvm->arch.hpt.rev[index].guest_rpte;
unlock_hpte(hptep, v);
preempt_enable();
@@ -461,8 +461,8 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
if (ea != vcpu->arch.pgfault_addr)
return RESUME_GUEST;
index = vcpu->arch.pgfault_index;
- hptep = (__be64 *)(kvm->arch.hpt_virt + (index << 4));
- rev = &kvm->arch.revmap[index];
+ hptep = (__be64 *)(kvm->arch.hpt.virt + (index << 4));
+ rev = &kvm->arch.hpt.rev[index];
preempt_disable();
while (!try_lock_hpte(hptep, HPTE_V_HVLOCK))
cpu_relax();
@@ -713,7 +713,7 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva,
static int kvm_unmap_rmapp(struct kvm *kvm, unsigned long *rmapp,
unsigned long gfn)
{
- struct revmap_entry *rev = kvm->arch.revmap;
+ struct revmap_entry *rev = kvm->arch.hpt.rev;
unsigned long h, i, j;
__be64 *hptep;
unsigned long ptel, psize, rcbits;
@@ -731,7 +731,7 @@ static int kvm_unmap_rmapp(struct kvm *kvm, unsigned long *rmapp,
* rmap chain lock.
*/
i = *rmapp & KVMPPC_RMAP_INDEX;
- hptep = (__be64 *) (kvm->arch.hpt_virt + (i << 4));
+ hptep = (__be64 *) (kvm->arch.hpt.virt + (i << 4));
if (!try_lock_hpte(hptep, HPTE_V_HVLOCK)) {
/* unlock rmap before spinning on the HPTE lock */
unlock_rmap(rmapp);
@@ -813,7 +813,7 @@ void kvmppc_core_flush_memslot_hv(struct kvm *kvm,
static int kvm_age_rmapp(struct kvm *kvm, unsigned long *rmapp,
unsigned long gfn)
{
- struct revmap_entry *rev = kvm->arch.revmap;
+ struct revmap_entry *rev = kvm->arch.hpt.rev;
unsigned long head, i, j;
__be64 *hptep;
int ret = 0;
@@ -831,7 +831,7 @@ static int kvm_age_rmapp(struct kvm *kvm, unsigned long *rmapp,
i = head = *rmapp & KVMPPC_RMAP_INDEX;
do {
- hptep = (__be64 *) (kvm->arch.hpt_virt + (i << 4));
+ hptep = (__be64 *) (kvm->arch.hpt.virt + (i << 4));
j = rev[i].forw;
/* If this HPTE isn't referenced, ignore it */
@@ -871,7 +871,7 @@ int kvm_age_hva_hv(struct kvm *kvm, unsigned long start, unsigned long end)
static int kvm_test_age_rmapp(struct kvm *kvm, unsigned long *rmapp,
unsigned long gfn)
{
- struct revmap_entry *rev = kvm->arch.revmap;
+ struct revmap_entry *rev = kvm->arch.hpt.rev;
unsigned long head, i, j;
unsigned long *hp;
int ret = 1;
@@ -886,7 +886,7 @@ static int kvm_test_age_rmapp(struct kvm *kvm, unsigned long *rmapp,
if (*rmapp & KVMPPC_RMAP_PRESENT) {
i = head = *rmapp & KVMPPC_RMAP_INDEX;
do {
- hp = (unsigned long *)(kvm->arch.hpt_virt + (i << 4));
+ hp = (unsigned long *)(kvm->arch.hpt.virt + (i << 4));
j = rev[i].forw;
if (be64_to_cpu(hp[1]) & HPTE_R_R)
goto out;
@@ -920,7 +920,7 @@ static int vcpus_running(struct kvm *kvm)
*/
static int kvm_test_clear_dirty_npages(struct kvm *kvm, unsigned long *rmapp)
{
- struct revmap_entry *rev = kvm->arch.revmap;
+ struct revmap_entry *rev = kvm->arch.hpt.rev;
unsigned long head, i, j;
unsigned long n;
unsigned long v, r;
@@ -945,7 +945,7 @@ static int kvm_test_clear_dirty_npages(struct kvm *kvm, unsigned long *rmapp)
i = head = *rmapp & KVMPPC_RMAP_INDEX;
do {
unsigned long hptep1;
- hptep = (__be64 *) (kvm->arch.hpt_virt + (i << 4));
+ hptep = (__be64 *) (kvm->arch.hpt.virt + (i << 4));
j = rev[i].forw;
/*
@@ -1252,8 +1252,8 @@ static ssize_t kvm_htab_read(struct file *file, char __user *buf,
flags = ctx->flags;
i = ctx->index;
- hptp = (__be64 *)(kvm->arch.hpt_virt + (i * HPTE_SIZE));
- revp = kvm->arch.revmap + i;
+ hptp = (__be64 *)(kvm->arch.hpt.virt + (i * HPTE_SIZE));
+ revp = kvm->arch.hpt.rev + i;
lbuf = (unsigned long __user *)buf;
nb = 0;
@@ -1268,7 +1268,7 @@ static ssize_t kvm_htab_read(struct file *file, char __user *buf,
/* Skip uninteresting entries, i.e. clean on not-first pass */
if (!first_pass) {
- while (i < kvm->arch.hpt_npte &&
+ while (i < kvm->arch.hpt.npte &&
!hpte_dirty(revp, hptp)) {
++i;
hptp += 2;
@@ -1278,7 +1278,7 @@ static ssize_t kvm_htab_read(struct file *file, char __user *buf,
hdr.index = i;
/* Grab a series of valid entries */
- while (i < kvm->arch.hpt_npte &&
+ while (i < kvm->arch.hpt.npte &&
hdr.n_valid < 0xffff &&
nb + HPTE_SIZE < count &&
record_hpte(flags, hptp, hpte, revp, 1, first_pass)) {
@@ -1294,7 +1294,7 @@ static ssize_t kvm_htab_read(struct file *file, char __user *buf,
++revp;
}
/* Now skip invalid entries while we can */
- while (i < kvm->arch.hpt_npte &&
+ while (i < kvm->arch.hpt.npte &&
hdr.n_invalid < 0xffff &&
record_hpte(flags, hptp, hpte, revp, 0, first_pass)) {
/* found an invalid entry */
@@ -1315,7 +1315,7 @@ static ssize_t kvm_htab_read(struct file *file, char __user *buf,
}
/* Check if we've wrapped around the hash table */
- if (i >= kvm->arch.hpt_npte) {
+ if (i >= kvm->arch.hpt.npte) {
i = 0;
ctx->first_pass = 0;
break;
@@ -1374,11 +1374,11 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf,
err = -EINVAL;
i = hdr.index;
- if (i >= kvm->arch.hpt_npte ||
- i + hdr.n_valid + hdr.n_invalid > kvm->arch.hpt_npte)
+ if (i >= kvm->arch.hpt.npte ||
+ i + hdr.n_valid + hdr.n_invalid > kvm->arch.hpt.npte)
break;
- hptp = (__be64 *)(kvm->arch.hpt_virt + (i * HPTE_SIZE));
+ hptp = (__be64 *)(kvm->arch.hpt.virt + (i * HPTE_SIZE));
lbuf = (unsigned long __user *)buf;
for (j = 0; j < hdr.n_valid; ++j) {
__be64 hpte_v;
@@ -1565,8 +1565,8 @@ static ssize_t debugfs_htab_read(struct file *file, char __user *buf,
kvm = p->kvm;
i = p->hpt_index;
- hptp = (__be64 *)(kvm->arch.hpt_virt + (i * HPTE_SIZE));
- for (; len != 0 && i < kvm->arch.hpt_npte; ++i, hptp += 2) {
+ hptp = (__be64 *)(kvm->arch.hpt.virt + (i * HPTE_SIZE));
+ for (; len != 0 && i < kvm->arch.hpt.npte; ++i, hptp += 2) {
if (!(be64_to_cpu(hptp[0]) & (HPTE_V_VALID | HPTE_V_ABSENT)))
continue;
@@ -1576,7 +1576,7 @@ static ssize_t debugfs_htab_read(struct file *file, char __user *buf,
cpu_relax();
v = be64_to_cpu(hptp[0]) & ~HPTE_V_HVLOCK;
hr = be64_to_cpu(hptp[1]);
- gr = kvm->arch.revmap[i].guest_rpte;
+ gr = kvm->arch.hpt.rev[i].guest_rpte;
unlock_hpte(hptp, v);
preempt_enable();
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index baeddb0..eea4dbd 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2922,7 +2922,7 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
goto out; /* another vcpu beat us to it */
/* Allocate hashed page table (if not done already) and reset it */
- if (!kvm->arch.hpt_virt) {
+ if (!kvm->arch.hpt.virt) {
err = kvmppc_alloc_hpt(kvm, NULL);
if (err) {
pr_err("KVM: Couldn't alloc HPT\n");
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 9170051..a4641e4 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -79,10 +79,10 @@ void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
if (*rmap & KVMPPC_RMAP_PRESENT) {
i = *rmap & KVMPPC_RMAP_INDEX;
- head = &kvm->arch.revmap[i];
+ head = &kvm->arch.hpt.rev[i];
if (realmode)
head = real_vmalloc_addr(head);
- tail = &kvm->arch.revmap[head->back];
+ tail = &kvm->arch.hpt.rev[head->back];
if (realmode)
tail = real_vmalloc_addr(tail);
rev->forw = i;
@@ -147,8 +147,8 @@ static void remove_revmap_chain(struct kvm *kvm, long pte_index,
lock_rmap(rmap);
head = *rmap & KVMPPC_RMAP_INDEX;
- next = real_vmalloc_addr(&kvm->arch.revmap[rev->forw]);
- prev = real_vmalloc_addr(&kvm->arch.revmap[rev->back]);
+ next = real_vmalloc_addr(&kvm->arch.hpt.rev[rev->forw]);
+ prev = real_vmalloc_addr(&kvm->arch.hpt.rev[rev->back]);
next->back = rev->back;
prev->forw = rev->forw;
if (head == pte_index) {
@@ -281,11 +281,11 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
/* Find and lock the HPTEG slot to use */
do_insert:
- if (pte_index >= kvm->arch.hpt_npte)
+ if (pte_index >= kvm->arch.hpt.npte)
return H_PARAMETER;
if (likely((flags & H_EXACT) == 0)) {
pte_index &= ~7UL;
- hpte = (__be64 *)(kvm->arch.hpt_virt + (pte_index << 4));
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (pte_index << 4));
for (i = 0; i < 8; ++i) {
if ((be64_to_cpu(*hpte) & HPTE_V_VALID) == 0 &&
try_lock_hpte(hpte, HPTE_V_HVLOCK | HPTE_V_VALID |
@@ -316,7 +316,7 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
}
pte_index += i;
} else {
- hpte = (__be64 *)(kvm->arch.hpt_virt + (pte_index << 4));
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (pte_index << 4));
if (!try_lock_hpte(hpte, HPTE_V_HVLOCK | HPTE_V_VALID |
HPTE_V_ABSENT)) {
/* Lock the slot and check again */
@@ -333,7 +333,7 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
}
/* Save away the guest's idea of the second HPTE dword */
- rev = &kvm->arch.revmap[pte_index];
+ rev = &kvm->arch.hpt.rev[pte_index];
if (realmode)
rev = real_vmalloc_addr(rev);
if (rev) {
@@ -437,9 +437,9 @@ long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
struct revmap_entry *rev;
u64 pte;
- if (pte_index >= kvm->arch.hpt_npte)
+ if (pte_index >= kvm->arch.hpt.npte)
return H_PARAMETER;
- hpte = (__be64 *)(kvm->arch.hpt_virt + (pte_index << 4));
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (pte_index << 4));
while (!try_lock_hpte(hpte, HPTE_V_HVLOCK))
cpu_relax();
pte = be64_to_cpu(hpte[0]);
@@ -450,7 +450,7 @@ long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
return H_NOT_FOUND;
}
- rev = real_vmalloc_addr(&kvm->arch.revmap[pte_index]);
+ rev = real_vmalloc_addr(&kvm->arch.hpt.rev[pte_index]);
v = pte & ~HPTE_V_HVLOCK;
if (v & HPTE_V_VALID) {
hpte[0] &= ~cpu_to_be64(HPTE_V_VALID);
@@ -515,13 +515,13 @@ long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu)
break;
}
if (req != 1 || flags == 3 ||
- pte_index >= kvm->arch.hpt_npte) {
+ pte_index >= kvm->arch.hpt.npte) {
/* parameter error */
args[j] = ((0xa0 | flags) << 56) + pte_index;
ret = H_PARAMETER;
break;
}
- hp = (__be64 *) (kvm->arch.hpt_virt + (pte_index << 4));
+ hp = (__be64 *) (kvm->arch.hpt.virt + (pte_index << 4));
/* to avoid deadlock, don't spin except for first */
if (!try_lock_hpte(hp, HPTE_V_HVLOCK)) {
if (n)
@@ -553,7 +553,7 @@ long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu)
}
args[j] = ((0x80 | flags) << 56) + pte_index;
- rev = real_vmalloc_addr(&kvm->arch.revmap[pte_index]);
+ rev = real_vmalloc_addr(&kvm->arch.hpt.rev[pte_index]);
note_hpte_modification(kvm, rev);
if (!(hp0 & HPTE_V_VALID)) {
@@ -607,10 +607,10 @@ long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
unsigned long v, r, rb, mask, bits;
u64 pte;
- if (pte_index >= kvm->arch.hpt_npte)
+ if (pte_index >= kvm->arch.hpt.npte)
return H_PARAMETER;
- hpte = (__be64 *)(kvm->arch.hpt_virt + (pte_index << 4));
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (pte_index << 4));
while (!try_lock_hpte(hpte, HPTE_V_HVLOCK))
cpu_relax();
pte = be64_to_cpu(hpte[0]);
@@ -628,7 +628,7 @@ long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
/* Update guest view of 2nd HPTE dword */
mask = HPTE_R_PP0 | HPTE_R_PP | HPTE_R_N |
HPTE_R_KEY_HI | HPTE_R_KEY_LO;
- rev = real_vmalloc_addr(&kvm->arch.revmap[pte_index]);
+ rev = real_vmalloc_addr(&kvm->arch.hpt.rev[pte_index]);
if (rev) {
r = (rev->guest_rpte & ~mask) | bits;
rev->guest_rpte = r;
@@ -670,15 +670,15 @@ long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags,
int i, n = 1;
struct revmap_entry *rev = NULL;
- if (pte_index >= kvm->arch.hpt_npte)
+ if (pte_index >= kvm->arch.hpt.npte)
return H_PARAMETER;
if (flags & H_READ_4) {
pte_index &= ~3;
n = 4;
}
- rev = real_vmalloc_addr(&kvm->arch.revmap[pte_index]);
+ rev = real_vmalloc_addr(&kvm->arch.hpt.rev[pte_index]);
for (i = 0; i < n; ++i, ++pte_index) {
- hpte = (__be64 *)(kvm->arch.hpt_virt + (pte_index << 4));
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (pte_index << 4));
v = be64_to_cpu(hpte[0]) & ~HPTE_V_HVLOCK;
r = be64_to_cpu(hpte[1]);
if (v & HPTE_V_ABSENT) {
@@ -705,11 +705,11 @@ long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags,
unsigned long *rmap;
long ret = H_NOT_FOUND;
- if (pte_index >= kvm->arch.hpt_npte)
+ if (pte_index >= kvm->arch.hpt.npte)
return H_PARAMETER;
- rev = real_vmalloc_addr(&kvm->arch.revmap[pte_index]);
- hpte = (__be64 *)(kvm->arch.hpt_virt + (pte_index << 4));
+ rev = real_vmalloc_addr(&kvm->arch.hpt.rev[pte_index]);
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (pte_index << 4));
while (!try_lock_hpte(hpte, HPTE_V_HVLOCK))
cpu_relax();
v = be64_to_cpu(hpte[0]);
@@ -751,11 +751,11 @@ long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags,
unsigned long *rmap;
long ret = H_NOT_FOUND;
- if (pte_index >= kvm->arch.hpt_npte)
+ if (pte_index >= kvm->arch.hpt.npte)
return H_PARAMETER;
- rev = real_vmalloc_addr(&kvm->arch.revmap[pte_index]);
- hpte = (__be64 *)(kvm->arch.hpt_virt + (pte_index << 4));
+ rev = real_vmalloc_addr(&kvm->arch.hpt.rev[pte_index]);
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (pte_index << 4));
while (!try_lock_hpte(hpte, HPTE_V_HVLOCK))
cpu_relax();
v = be64_to_cpu(hpte[0]);
@@ -861,7 +861,7 @@ long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, unsigned long slb_v,
somask = (1UL << 28) - 1;
vsid = (slb_v & ~SLB_VSID_B) >> SLB_VSID_SHIFT;
}
- hash = (vsid ^ ((eaddr & somask) >> pshift)) & kvm->arch.hpt_mask;
+ hash = (vsid ^ ((eaddr & somask) >> pshift)) & kvm->arch.hpt.mask;
avpn = slb_v & ~(somask >> 16); /* also includes B */
avpn |= (eaddr & somask) >> 16;
@@ -872,7 +872,7 @@ long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, unsigned long slb_v,
val |= avpn;
for (;;) {
- hpte = (__be64 *)(kvm->arch.hpt_virt + (hash << 7));
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (hash << 7));
for (i = 0; i < 16; i += 2) {
/* Read the PTE racily */
@@ -902,7 +902,7 @@ long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, unsigned long slb_v,
if (val & HPTE_V_SECONDARY)
break;
val |= HPTE_V_SECONDARY;
- hash = hash ^ kvm->arch.hpt_mask;
+ hash = hash ^ kvm->arch.hpt.mask;
}
return -1;
}
@@ -941,10 +941,10 @@ long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr,
return status; /* there really was no HPTE */
return 0; /* for prot fault, HPTE disappeared */
}
- hpte = (__be64 *)(kvm->arch.hpt_virt + (index << 4));
+ hpte = (__be64 *)(kvm->arch.hpt.virt + (index << 4));
v = be64_to_cpu(hpte[0]) & ~HPTE_V_HVLOCK;
r = be64_to_cpu(hpte[1]);
- rev = real_vmalloc_addr(&kvm->arch.revmap[index]);
+ rev = real_vmalloc_addr(&kvm->arch.hpt.rev[index]);
gr = rev->guest_rpte;
unlock_hpte(hpte, v);
--
2.5.0
More information about the Linuxppc-dev
mailing list