xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
程式碼 問題 合併請求 Actions 套件 專案 版本發布 Wiki 動態

s390/mm: use new mm defines instead of magic values

瀏覽代碼 
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
此提交包含在：
Heiko Carstens
2017-07-05 07:37:27 +02:00
提交者 Martin Schwidefsky
父節點 c67da7c7c5
當前提交 f1c1174fa0
共有 15 個檔案被更改，包括 103 行新增 和 99 行删除
下載 Patch 檔 下載差異檔 展開所有檔案 折疊所有檔案

124
arch/s390/mm/gmap.c
查看文件

@@ -36,16 +36,16 @@ static struct gmap *gmap_alloc(unsigned long limit)
unsigned long *table;
unsigned long etype, atype;
if (limit < (1UL << 31)) {
limit = (1UL << 31) - 1;
if (limit < _REGION3_SIZE) {
limit = _REGION3_SIZE - 1;
atype = _ASCE_TYPE_SEGMENT;
etype = _SEGMENT_ENTRY_EMPTY;
} else if (limit < (1UL << 42)) {
limit = (1UL << 42) - 1;
} else if (limit < _REGION2_SIZE) {
limit = _REGION2_SIZE - 1;
atype = _ASCE_TYPE_REGION3;
etype = _REGION3_ENTRY_EMPTY;
} else if (limit < (1UL << 53)) {
limit = (1UL << 53) - 1;
} else if (limit < _REGION1_SIZE) {
limit = _REGION1_SIZE - 1;
atype = _ASCE_TYPE_REGION2;
etype = _REGION2_ENTRY_EMPTY;
} else {
@@ -65,7 +65,7 @@ static struct gmap *gmap_alloc(unsigned long limit)
spin_lock_init(&gmap->guest_table_lock);
spin_lock_init(&gmap->shadow_lock);
atomic_set(&gmap->ref_count, 1);
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
goto out_free;
page->index = 0;
@@ -186,7 +186,7 @@ static void gmap_free(struct gmap *gmap)
gmap_flush_tlb(gmap);
/* Free all segment & region tables. */
list_for_each_entry_safe(page, next, &gmap->crst_list, lru)
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
gmap_radix_tree_free(&gmap->guest_to_host);
gmap_radix_tree_free(&gmap->host_to_guest);
@@ -306,7 +306,7 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
unsigned long *new;
/* since we dont free the gmap table until gmap_free we can unlock */
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
new = (unsigned long *) page_to_phys(page);
@@ -321,7 +321,7 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
}
spin_unlock(&gmap->guest_table_lock);
if (page)
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
return 0;
}
@@ -546,30 +546,30 @@ int __gmap_link(struct gmap *gmap, unsigned long gaddr, unsigned long vmaddr)
/* Create higher level tables in the gmap page table */
table = gmap->table;
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION1) {
table += (gaddr >> 53) & 0x7ff;
table += (gaddr & _REGION1_INDEX) >> _REGION1_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _REGION2_ENTRY_EMPTY,
gaddr & 0xffe0000000000000UL))
gaddr & _REGION1_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION2) {
table += (gaddr >> 42) & 0x7ff;
table += (gaddr & _REGION2_INDEX) >> _REGION2_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _REGION3_ENTRY_EMPTY,
gaddr & 0xfffffc0000000000UL))
gaddr & _REGION2_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION3) {
table += (gaddr >> 31) & 0x7ff;
table += (gaddr & _REGION3_INDEX) >> _REGION3_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _SEGMENT_ENTRY_EMPTY,
gaddr & 0xffffffff80000000UL))
gaddr & _REGION3_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
table += (gaddr >> 20) & 0x7ff;
table += (gaddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
/* Walk the parent mm page table */
mm = gmap->mm;
pgd = pgd_offset(mm, vmaddr);
@@ -771,7 +771,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = gmap->table;
switch (gmap->asce & _ASCE_TYPE_MASK) {
case _ASCE_TYPE_REGION1:
table += (gaddr >> 53) & 0x7ff;
table += (gaddr & _REGION1_INDEX) >> _REGION1_SHIFT;
if (level == 4)
break;
if (*table & _REGION_ENTRY_INVALID)
@@ -779,7 +779,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_REGION2:
table += (gaddr >> 42) & 0x7ff;
table += (gaddr & _REGION2_INDEX) >> _REGION2_SHIFT;
if (level == 3)
break;
if (*table & _REGION_ENTRY_INVALID)
@@ -787,7 +787,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_REGION3:
table += (gaddr >> 31) & 0x7ff;
table += (gaddr & _REGION3_INDEX) >> _REGION3_SHIFT;
if (level == 2)
break;
if (*table & _REGION_ENTRY_INVALID)
@@ -795,13 +795,13 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_SEGMENT:
table += (gaddr >> 20) & 0x7ff;
table += (gaddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
if (level == 1)
break;
if (*table & _REGION_ENTRY_INVALID)
return NULL;
table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN);
table += (gaddr >> 12) & 0xff;
table += (gaddr & _PAGE_INDEX) >> _PAGE_SHIFT;
}
return table;
}
@@ -1126,7 +1126,7 @@ static void gmap_unshadow_page(struct gmap *sg, unsigned long raddr)
table = gmap_table_walk(sg, raddr, 0); /* get page table pointer */
if (!table || *table & _PAGE_INVALID)
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 12) - 1);
gmap_call_notifier(sg, raddr, raddr + _PAGE_SIZE - 1);
ptep_unshadow_pte(sg->mm, raddr, (pte_t *) table);
}
@@ -1144,7 +1144,7 @@ static void __gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr,
int i;
BUG_ON(!gmap_is_shadow(sg));
for (i = 0; i < 256; i++, raddr += 1UL << 12)
for (i = 0; i < _PAGE_ENTRIES; i++, raddr += _PAGE_SIZE)
pgt[i] = _PAGE_INVALID;
}
@@ -1164,8 +1164,8 @@ static void gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr)
ste = gmap_table_walk(sg, raddr, 1); /* get segment pointer */
if (!ste || !(*ste & _SEGMENT_ENTRY_ORIGIN))
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 20) - 1);
sto = (unsigned long) (ste - ((raddr >> 20) & 0x7ff));
gmap_call_notifier(sg, raddr, raddr + _SEGMENT_SIZE - 1);
sto = (unsigned long) (ste - ((raddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT));
gmap_idte_one(sto | _ASCE_TYPE_SEGMENT, raddr);
pgt = (unsigned long *)(*ste & _SEGMENT_ENTRY_ORIGIN);
*ste = _SEGMENT_ENTRY_EMPTY;
@@ -1193,7 +1193,7 @@ static void __gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) sgt | _ASCE_TYPE_SEGMENT;
for (i = 0; i < 2048; i++, raddr += 1UL << 20) {
for (i = 0; i < _CRST_ENTRIES; i++, raddr += _SEGMENT_SIZE) {
if (!(sgt[i] & _SEGMENT_ENTRY_ORIGIN))
continue;
pgt = (unsigned long *)(sgt[i] & _REGION_ENTRY_ORIGIN);
@@ -1222,8 +1222,8 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr)
r3e = gmap_table_walk(sg, raddr, 2); /* get region-3 pointer */
if (!r3e || !(*r3e & _REGION_ENTRY_ORIGIN))
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 31) - 1);
r3o = (unsigned long) (r3e - ((raddr >> 31) & 0x7ff));
gmap_call_notifier(sg, raddr, raddr + _REGION3_SIZE - 1);
r3o = (unsigned long) (r3e - ((raddr & _REGION3_INDEX) >> _REGION3_SHIFT));
gmap_idte_one(r3o | _ASCE_TYPE_REGION3, raddr);
sgt = (unsigned long *)(*r3e & _REGION_ENTRY_ORIGIN);
*r3e = _REGION3_ENTRY_EMPTY;
@@ -1231,7 +1231,7 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr)
/* Free segment table */
page = pfn_to_page(__pa(sgt) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
/**
@@ -1251,7 +1251,7 @@ static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r3t | _ASCE_TYPE_REGION3;
for (i = 0; i < 2048; i++, raddr += 1UL << 31) {
for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION3_SIZE) {
if (!(r3t[i] & _REGION_ENTRY_ORIGIN))
continue;
sgt = (unsigned long *)(r3t[i] & _REGION_ENTRY_ORIGIN);
@@ -1260,7 +1260,7 @@ static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr,
/* Free segment table */
page = pfn_to_page(__pa(sgt) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
}
@@ -1280,8 +1280,8 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr)
r2e = gmap_table_walk(sg, raddr, 3); /* get region-2 pointer */
if (!r2e || !(*r2e & _REGION_ENTRY_ORIGIN))
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 42) - 1);
r2o = (unsigned long) (r2e - ((raddr >> 42) & 0x7ff));
gmap_call_notifier(sg, raddr, raddr + _REGION2_SIZE - 1);
r2o = (unsigned long) (r2e - ((raddr & _REGION2_INDEX) >> _REGION2_SHIFT));
gmap_idte_one(r2o | _ASCE_TYPE_REGION2, raddr);
r3t = (unsigned long *)(*r2e & _REGION_ENTRY_ORIGIN);
*r2e = _REGION2_ENTRY_EMPTY;
@@ -1289,7 +1289,7 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr)
/* Free region 3 table */
page = pfn_to_page(__pa(r3t) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
/**
@@ -1309,7 +1309,7 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r2t | _ASCE_TYPE_REGION2;
for (i = 0; i < 2048; i++, raddr += 1UL << 42) {
for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION2_SIZE) {
if (!(r2t[i] & _REGION_ENTRY_ORIGIN))
continue;
r3t = (unsigned long *)(r2t[i] & _REGION_ENTRY_ORIGIN);
@@ -1318,7 +1318,7 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr,
/* Free region 3 table */
page = pfn_to_page(__pa(r3t) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
}
@@ -1338,8 +1338,8 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr)
r1e = gmap_table_walk(sg, raddr, 4); /* get region-1 pointer */
if (!r1e || !(*r1e & _REGION_ENTRY_ORIGIN))
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 53) - 1);
r1o = (unsigned long) (r1e - ((raddr >> 53) & 0x7ff));
gmap_call_notifier(sg, raddr, raddr + _REGION1_SIZE - 1);
r1o = (unsigned long) (r1e - ((raddr & _REGION1_INDEX) >> _REGION1_SHIFT));
gmap_idte_one(r1o | _ASCE_TYPE_REGION1, raddr);
r2t = (unsigned long *)(*r1e & _REGION_ENTRY_ORIGIN);
*r1e = _REGION1_ENTRY_EMPTY;
@@ -1347,7 +1347,7 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr)
/* Free region 2 table */
page = pfn_to_page(__pa(r2t) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
/**
@@ -1367,7 +1367,7 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r1t | _ASCE_TYPE_REGION1;
for (i = 0; i < 2048; i++, raddr += 1UL << 53) {
for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION1_SIZE) {
if (!(r1t[i] & _REGION_ENTRY_ORIGIN))
continue;
r2t = (unsigned long *)(r1t[i] & _REGION_ENTRY_ORIGIN);
@@ -1378,7 +1378,7 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr,
/* Free region 2 table */
page = pfn_to_page(__pa(r2t) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
}
@@ -1535,7 +1535,7 @@ struct gmap *gmap_shadow(struct gmap *parent, unsigned long asce,
/* protect after insertion, so it will get properly invalidated */
down_read(&parent->mm->mmap_sem);
rc = gmap_protect_range(parent, asce & _ASCE_ORIGIN,
((asce & _ASCE_TABLE_LENGTH) + 1) * 4096,
((asce & _ASCE_TABLE_LENGTH) + 1) * PAGE_SIZE,
PROT_READ, PGSTE_VSIE_BIT);
up_read(&parent->mm->mmap_sem);
spin_lock(&parent->shadow_lock);
@@ -1578,7 +1578,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
BUG_ON(!gmap_is_shadow(sg));
/* Allocate a shadow region second table */
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = r2t & _REGION_ENTRY_ORIGIN;
@@ -1614,10 +1614,10 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
}
spin_unlock(&sg->guest_table_lock);
/* Make r2t read-only in parent gmap page table */
raddr = (saddr & 0xffe0000000000000UL) | _SHADOW_RMAP_REGION1;
raddr = (saddr & _REGION1_MASK) | _SHADOW_RMAP_REGION1;
origin = r2t & _REGION_ENTRY_ORIGIN;
offset = ((r2t & _REGION_ENTRY_OFFSET) >> 6) * 4096;
len = ((r2t & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
offset = ((r2t & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
len = ((r2t & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
@@ -1634,7 +1634,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_r2t);
@@ -1662,7 +1662,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
BUG_ON(!gmap_is_shadow(sg));
/* Allocate a shadow region second table */
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = r3t & _REGION_ENTRY_ORIGIN;
@@ -1697,10 +1697,10 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
}
spin_unlock(&sg->guest_table_lock);
/* Make r3t read-only in parent gmap page table */
raddr = (saddr & 0xfffffc0000000000UL) | _SHADOW_RMAP_REGION2;
raddr = (saddr & _REGION2_MASK) | _SHADOW_RMAP_REGION2;
origin = r3t & _REGION_ENTRY_ORIGIN;
offset = ((r3t & _REGION_ENTRY_OFFSET) >> 6) * 4096;
len = ((r3t & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
offset = ((r3t & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
len = ((r3t & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
@@ -1717,7 +1717,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_r3t);
@@ -1745,7 +1745,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
BUG_ON(!gmap_is_shadow(sg) || (sgt & _REGION3_ENTRY_LARGE));
/* Allocate a shadow segment table */
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = sgt & _REGION_ENTRY_ORIGIN;
@@ -1781,10 +1781,10 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
}
spin_unlock(&sg->guest_table_lock);
/* Make sgt read-only in parent gmap page table */
raddr = (saddr & 0xffffffff80000000UL) | _SHADOW_RMAP_REGION3;
raddr = (saddr & _REGION3_MASK) | _SHADOW_RMAP_REGION3;
origin = sgt & _REGION_ENTRY_ORIGIN;
offset = ((sgt & _REGION_ENTRY_OFFSET) >> 6) * 4096;
len = ((sgt & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
offset = ((sgt & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
len = ((sgt & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
@@ -1801,7 +1801,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_sgt);
@@ -1902,7 +1902,7 @@ int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt,
}
spin_unlock(&sg->guest_table_lock);
/* Make pgt read-only in parent gmap page table (not the pgste) */
raddr = (saddr & 0xfffffffffff00000UL) | _SHADOW_RMAP_SEGMENT;
raddr = (saddr & _SEGMENT_MASK) | _SHADOW_RMAP_SEGMENT;
origin = pgt & _SEGMENT_ENTRY_ORIGIN & PAGE_MASK;
rc = gmap_protect_rmap(sg, raddr, origin, PAGE_SIZE, PROT_READ);
spin_lock(&sg->guest_table_lock);
@@ -2021,7 +2021,7 @@ static void gmap_shadow_notify(struct gmap *sg, unsigned long vmaddr,
}
/* Check for top level table */
start = sg->orig_asce & _ASCE_ORIGIN;
end = start + ((sg->orig_asce & _ASCE_TABLE_LENGTH) + 1) * 4096;
end = start + ((sg->orig_asce & _ASCE_TABLE_LENGTH) + 1) * PAGE_SIZE;
if (!(sg->orig_asce & _ASCE_REAL_SPACE) && gaddr >= start &&
gaddr < end) {
/* The complete shadow table has to go */
@@ -2032,7 +2032,7 @@ static void gmap_shadow_notify(struct gmap *sg, unsigned long vmaddr,
return;
}
/* Remove the page table tree from on specific entry */
head = radix_tree_delete(&sg->host_to_rmap, vmaddr >> 12);
head = radix_tree_delete(&sg->host_to_rmap, vmaddr >> PAGE_SHIFT);
gmap_for_each_rmap_safe(rmap, rnext, head) {
bits = rmap->raddr & _SHADOW_RMAP_MASK;
raddr = rmap->raddr ^ bits;
@@ -2076,7 +2076,7 @@ void ptep_notify(struct mm_struct *mm, unsigned long vmaddr,
struct gmap *gmap, *sg, *next;
offset = ((unsigned long) pte) & (255 * sizeof(pte_t));
offset = offset * (4096 / sizeof(pte_t));
offset = offset * (PAGE_SIZE / sizeof(pte_t));
rcu_read_lock();
list_for_each_entry_rcu(gmap, &mm->context.gmap_list, list) {
spin_lock(&gmap->guest_table_lock);