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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 16/17] xen/mm: Convert {s, g}et_gpfn_from_mfn() to use typesafe MFN
From: Julien Grall <julien.grall@xxxxxxx>
The first parameter of {s,g}et_gpfn_from_mfn() is an MFN, so it can be
switched to use the typesafe.
At the same time, replace gpfn with pfn in the helpers as they all deal
with PFN and also turn the macros to static inline.
Note that the return of the getter and the 2nd parameter of the setter
have not been converted to use typesafe PFN because it was requiring
more changes than expected.
Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
---
This was originally sent as part of "xen/arm: Properly disable M2P
on Arm" [1].
Changes since the original version:
- mfn_to_gmfn() is still present for now so update it
- Remove stray +
- Avoid churn in set_pfn_from_mfn() by inverting mfn and mfn_
- Remove tags
- Fix build in mem_sharing
[1] <20190603160350.29806-1-julien.grall@xxxxxxx>
---
xen/arch/x86/cpu/mcheck/mcaction.c | 2 +-
xen/arch/x86/mm.c | 14 +++----
xen/arch/x86/mm/mem_sharing.c | 20 ++++-----
xen/arch/x86/mm/p2m-pod.c | 4 +-
xen/arch/x86/mm/p2m-pt.c | 35 ++++++++--------
xen/arch/x86/mm/p2m.c | 66 +++++++++++++++---------------
xen/arch/x86/mm/paging.c | 4 +-
xen/arch/x86/pv/dom0_build.c | 6 +--
xen/arch/x86/x86_64/traps.c | 8 ++--
xen/common/page_alloc.c | 2 +-
xen/include/asm-arm/mm.h | 2 +-
xen/include/asm-x86/grant_table.h | 2 +-
xen/include/asm-x86/mm.h | 12 ++++--
xen/include/asm-x86/p2m.h | 2 +-
14 files changed, 93 insertions(+), 86 deletions(-)
diff --git a/xen/arch/x86/cpu/mcheck/mcaction.c
b/xen/arch/x86/cpu/mcheck/mcaction.c
index 69332fb84d..5e78fb7703 100644
--- a/xen/arch/x86/cpu/mcheck/mcaction.c
+++ b/xen/arch/x86/cpu/mcheck/mcaction.c
@@ -89,7 +89,7 @@ mc_memerr_dhandler(struct mca_binfo *binfo,
{
d = get_domain_by_id(bank->mc_domid);
ASSERT(d);
- gfn = get_gpfn_from_mfn((bank->mc_addr) >> PAGE_SHIFT);
+ gfn = get_pfn_from_mfn(maddr_to_mfn(bank->mc_addr));
if ( unmmap_broken_page(d, mfn, gfn) )
{
diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 2516548e49..2feb7a5993 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -476,7 +476,7 @@ void share_xen_page_with_guest(struct page_info *page,
struct domain *d,
if ( page_get_owner(page) == d )
return;
- set_gpfn_from_mfn(mfn_x(page_to_mfn(page)), INVALID_M2P_ENTRY);
+ set_pfn_from_mfn(page_to_mfn(page), INVALID_M2P_ENTRY);
spin_lock(&d->page_alloc_lock);
@@ -1040,7 +1040,7 @@ get_page_from_l1e(
gdprintk(XENLOG_WARNING, "Error updating mappings for mfn %"
PRI_mfn
" (pfn %" PRI_pfn ", from L1 entry %" PRIpte ") for
d%d\n",
- mfn, get_gpfn_from_mfn(mfn),
+ mfn, get_pfn_from_mfn(_mfn(mfn)),
l1e_get_intpte(l1e), l1e_owner->domain_id);
return err;
}
@@ -1051,7 +1051,7 @@ get_page_from_l1e(
could_not_pin:
gdprintk(XENLOG_WARNING, "Error getting mfn %" PRI_mfn " (pfn %" PRI_pfn
") from L1 entry %" PRIpte " for l1e_owner d%d, pg_owner d%d\n",
- mfn, get_gpfn_from_mfn(mfn),
+ mfn, get_pfn_from_mfn(_mfn(mfn)),
l1e_get_intpte(l1e), l1e_owner->domain_id, pg_owner->domain_id);
if ( real_pg_owner != NULL )
put_page(page);
@@ -2636,7 +2636,7 @@ static int validate_page(struct page_info *page, unsigned
long type,
" (pfn %" PRI_pfn ") for type %" PRtype_info
": caf=%08lx taf=%" PRtype_info "\n",
mfn_x(page_to_mfn(page)),
- get_gpfn_from_mfn(mfn_x(page_to_mfn(page))),
+ get_pfn_from_mfn(page_to_mfn(page)),
type, page->count_info, page->u.inuse.type_info);
if ( page != current->arch.old_guest_table )
page->u.inuse.type_info = 0;
@@ -2946,7 +2946,7 @@ static int _get_page_type(struct page_info *page,
unsigned long type,
"Bad type (saw %" PRtype_info " != exp %" PRtype_info ") "
"for mfn %" PRI_mfn " (pfn %" PRI_pfn ")\n",
x, type, mfn_x(page_to_mfn(page)),
- get_gpfn_from_mfn(mfn_x(page_to_mfn(page))));
+ get_pfn_from_mfn(page_to_mfn(page)));
return -EINVAL;
}
else if ( unlikely(!(x & PGT_validated)) )
@@ -4106,7 +4106,7 @@ long do_mmu_update(
break;
}
- set_gpfn_from_mfn(mfn_x(mfn), gpfn);
+ set_pfn_from_mfn(mfn, gpfn);
paging_mark_pfn_dirty(pg_owner, _pfn(gpfn));
put_page(page);
@@ -4590,7 +4590,7 @@ int xenmem_add_to_physmap_one(
goto put_both;
/* Unmap from old location, if any. */
- old_gpfn = get_gpfn_from_mfn(mfn_x(mfn));
+ old_gpfn = get_pfn_from_mfn(mfn);
ASSERT(!SHARED_M2P(old_gpfn));
if ( space == XENMAPSPACE_gmfn && old_gpfn != gfn )
{
diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c
index 3835bc928f..018beec10f 100644
--- a/xen/arch/x86/mm/mem_sharing.c
+++ b/xen/arch/x86/mm/mem_sharing.c
@@ -426,15 +426,15 @@ static void mem_sharing_gfn_destroy(struct page_info
*page, struct domain *d,
xfree(gfn_info);
}
-static struct page_info *mem_sharing_lookup(unsigned long mfn)
+static struct page_info *mem_sharing_lookup(mfn_t mfn)
{
struct page_info *page;
unsigned long t;
- if ( !mfn_valid(_mfn(mfn)) )
+ if ( !mfn_valid(mfn) )
return NULL;
- page = mfn_to_page(_mfn(mfn));
+ page = mfn_to_page(mfn);
if ( page_get_owner(page) != dom_cow )
return NULL;
@@ -446,7 +446,7 @@ static struct page_info *mem_sharing_lookup(unsigned long
mfn)
t = read_atomic(&page->u.inuse.type_info);
ASSERT((t & PGT_type_mask) == PGT_shared_page);
ASSERT((t & PGT_count_mask) >= 2);
- ASSERT(SHARED_M2P(get_gpfn_from_mfn(mfn)));
+ ASSERT(SHARED_M2P(get_pfn_from_mfn(mfn)));
return page;
}
@@ -505,10 +505,10 @@ static int audit(void)
}
/* Check the m2p entry */
- if ( !SHARED_M2P(get_gpfn_from_mfn(mfn_x(mfn))) )
+ if ( !SHARED_M2P(get_pfn_from_mfn(mfn)) )
{
- gdprintk(XENLOG_ERR, "mfn %lx shared, but wrong m2p entry
(%lx)!\n",
- mfn_x(mfn), get_gpfn_from_mfn(mfn_x(mfn)));
+ gdprintk(XENLOG_ERR, "mfn %"PRI_mfn" shared, but wrong m2p entry
(%lx)!\n",
+ mfn_x(mfn), get_pfn_from_mfn(mfn));
errors++;
}
@@ -736,7 +736,7 @@ static struct page_info *__grab_shared_page(mfn_t mfn)
if ( !mem_sharing_page_lock(pg) )
return NULL;
- if ( mem_sharing_lookup(mfn_x(mfn)) == NULL )
+ if ( mem_sharing_lookup(mfn) == NULL )
{
mem_sharing_page_unlock(pg);
return NULL;
@@ -918,7 +918,7 @@ static int nominate_page(struct domain *d, gfn_t gfn,
atomic_inc(&nr_shared_mfns);
/* Update m2p entry to SHARED_M2P_ENTRY */
- set_gpfn_from_mfn(mfn_x(mfn), SHARED_M2P_ENTRY);
+ set_pfn_from_mfn(mfn, SHARED_M2P_ENTRY);
*phandle = page->sharing->handle;
audit_add_list(page);
@@ -1306,7 +1306,7 @@ int __mem_sharing_unshare_page(struct domain *d,
}
/* Update m2p entry */
- set_gpfn_from_mfn(mfn_x(page_to_mfn(page)), gfn);
+ set_pfn_from_mfn(page_to_mfn(page), gfn);
/*
* Now that the gfn<->mfn map is properly established,
diff --git a/xen/arch/x86/mm/p2m-pod.c b/xen/arch/x86/mm/p2m-pod.c
index 2a7b8c117b..a9ac44a65c 100644
--- a/xen/arch/x86/mm/p2m-pod.c
+++ b/xen/arch/x86/mm/p2m-pod.c
@@ -644,7 +644,7 @@ p2m_pod_decrease_reservation(struct domain *d, gfn_t gfn,
unsigned int order)
}
p2m_tlb_flush_sync(p2m);
for ( j = 0; j < n; ++j )
- set_gpfn_from_mfn(mfn_x(mfn), INVALID_M2P_ENTRY);
+ set_pfn_from_mfn(mfn, INVALID_M2P_ENTRY);
p2m_pod_cache_add(p2m, page, cur_order);
steal_for_cache = ( p2m->pod.entry_count > p2m->pod.count );
@@ -1194,7 +1194,7 @@ p2m_pod_demand_populate(struct p2m_domain *p2m, gfn_t gfn,
for( i = 0; i < (1UL << order); i++ )
{
- set_gpfn_from_mfn(mfn_x(mfn) + i, gfn_x(gfn_aligned) + i);
+ set_pfn_from_mfn(mfn_add(mfn, i), gfn_x(gfn_aligned) + i);
paging_mark_pfn_dirty(d, _pfn(gfn_x(gfn_aligned) + i));
}
diff --git a/xen/arch/x86/mm/p2m-pt.c b/xen/arch/x86/mm/p2m-pt.c
index e9da34d668..1601e9e5e9 100644
--- a/xen/arch/x86/mm/p2m-pt.c
+++ b/xen/arch/x86/mm/p2m-pt.c
@@ -944,7 +944,8 @@ static int p2m_pt_change_entry_type_range(struct p2m_domain
*p2m,
long p2m_pt_audit_p2m(struct p2m_domain *p2m)
{
unsigned long entry_count = 0, pmbad = 0;
- unsigned long mfn, gfn, m2pfn;
+ unsigned long gfn, m2pfn;
+ mfn_t mfn;
ASSERT(p2m_locked_by_me(p2m));
ASSERT(pod_locked_by_me(p2m));
@@ -983,19 +984,20 @@ long p2m_pt_audit_p2m(struct p2m_domain *p2m)
/* check for 1GB super page */
if ( l3e_get_flags(l3e[i3]) & _PAGE_PSE )
{
- mfn = l3e_get_pfn(l3e[i3]);
- ASSERT(mfn_valid(_mfn(mfn)));
+ mfn = l3e_get_mfn(l3e[i3]);
+ ASSERT(mfn_valid(mfn));
/* we have to cover 512x512 4K pages */
for ( i2 = 0;
i2 < (L2_PAGETABLE_ENTRIES * L1_PAGETABLE_ENTRIES);
i2++)
{
- m2pfn = get_gpfn_from_mfn(mfn+i2);
+ m2pfn = get_pfn_from_mfn(mfn_add(mfn, i2));
if ( m2pfn != (gfn + i2) )
{
pmbad++;
- P2M_PRINTK("mismatch: gfn %#lx -> mfn %#lx -> gfn
%#lx\n",
- gfn + i2, mfn + i2, m2pfn);
+ P2M_PRINTK("mismatch: gfn %#lx -> mfn %"PRI_mfn"
gfn %#lx\n",
+ gfn + i2, mfn_x(mfn_add(mfn, i2)),
+ m2pfn);
BUG();
}
gfn += 1 << (L3_PAGETABLE_SHIFT - PAGE_SHIFT);
@@ -1019,17 +1021,18 @@ long p2m_pt_audit_p2m(struct p2m_domain *p2m)
/* check for super page */
if ( l2e_get_flags(l2e[i2]) & _PAGE_PSE )
{
- mfn = l2e_get_pfn(l2e[i2]);
- ASSERT(mfn_valid(_mfn(mfn)));
+ mfn = l2e_get_mfn(l2e[i2]);
+ ASSERT(mfn_valid(mfn));
for ( i1 = 0; i1 < L1_PAGETABLE_ENTRIES; i1++)
{
- m2pfn = get_gpfn_from_mfn(mfn+i1);
+ m2pfn = get_pfn_from_mfn(mfn_add(mfn, i1));
/* Allow shared M2Ps */
if ( (m2pfn != (gfn + i1)) && !SHARED_M2P(m2pfn) )
{
pmbad++;
- P2M_PRINTK("mismatch: gfn %#lx -> mfn %#lx ->
gfn %#lx\n",
- gfn + i1, mfn + i1, m2pfn);
+ P2M_PRINTK("mismatch: gfn %#lx -> mfn
%"PRI_mfn" -> gfn %#lx\n",
+ gfn + i1, mfn_x(mfn_add(mfn, i1)),
+ m2pfn);
BUG();
}
}
@@ -1050,17 +1053,17 @@ long p2m_pt_audit_p2m(struct p2m_domain *p2m)
entry_count++;
continue;
}
- mfn = l1e_get_pfn(l1e[i1]);
- ASSERT(mfn_valid(_mfn(mfn)));
- m2pfn = get_gpfn_from_mfn(mfn);
+ mfn = l1e_get_mfn(l1e[i1]);
+ ASSERT(mfn_valid(mfn));
+ m2pfn = get_pfn_from_mfn(mfn);
if ( m2pfn != gfn &&
type != p2m_mmio_direct &&
!p2m_is_grant(type) &&
!p2m_is_shared(type) )
{
pmbad++;
- P2M_PRINTK("mismatch: gfn %#lx -> mfn %#lx -> gfn
%#lx\n",
- gfn, mfn, m2pfn);
+ P2M_PRINTK("mismatch: gfn %#lx -> mfn %"PRI_mfn"
-> gfn %#lx\n",
+ gfn, mfn_x(mfn), m2pfn);
BUG();
}
}
diff --git a/xen/arch/x86/mm/p2m.c b/xen/arch/x86/mm/p2m.c
index b6b01a71c8..587c062481 100644
--- a/xen/arch/x86/mm/p2m.c
+++ b/xen/arch/x86/mm/p2m.c
@@ -769,7 +769,7 @@ void p2m_final_teardown(struct domain *d)
static int
-p2m_remove_page(struct p2m_domain *p2m, unsigned long gfn_l, unsigned long mfn,
+p2m_remove_page(struct p2m_domain *p2m, unsigned long gfn_l, mfn_t mfn,
unsigned int page_order)
{
unsigned long i;
@@ -783,17 +783,17 @@ p2m_remove_page(struct p2m_domain *p2m, unsigned long
gfn_l, unsigned long mfn,
return 0;
ASSERT(gfn_locked_by_me(p2m, gfn));
- P2M_DEBUG("removing gfn=%#lx mfn=%#lx\n", gfn_l, mfn);
+ P2M_DEBUG("removing gfn=%#lx mfn=%"PRI_mfn"\n", gfn_l, mfn_x(mfn));
- if ( mfn_valid(_mfn(mfn)) )
+ if ( mfn_valid(mfn) )
{
for ( i = 0; i < (1UL << page_order); i++ )
{
mfn_return = p2m->get_entry(p2m, gfn_add(gfn, i), &t, &a, 0,
NULL, NULL);
if ( !p2m_is_grant(t) && !p2m_is_shared(t) && !p2m_is_foreign(t) )
- set_gpfn_from_mfn(mfn+i, INVALID_M2P_ENTRY);
- ASSERT( !p2m_is_valid(t) || mfn + i == mfn_x(mfn_return) );
+ set_pfn_from_mfn(mfn_add(mfn, i), INVALID_M2P_ENTRY);
+ ASSERT( !p2m_is_valid(t) || mfn_eq(mfn_add(mfn, i), mfn_return) );
}
}
return p2m_set_entry(p2m, gfn, INVALID_MFN, page_order, p2m_invalid,
@@ -807,7 +807,7 @@ guest_physmap_remove_page(struct domain *d, gfn_t gfn,
struct p2m_domain *p2m = p2m_get_hostp2m(d);
int rc;
gfn_lock(p2m, gfn, page_order);
- rc = p2m_remove_page(p2m, gfn_x(gfn), mfn_x(mfn), page_order);
+ rc = p2m_remove_page(p2m, gfn_x(gfn), mfn, page_order);
gfn_unlock(p2m, gfn, page_order);
return rc;
}
@@ -842,7 +842,7 @@ guest_physmap_add_page(struct domain *d, gfn_t gfn, mfn_t
mfn,
else
return -EINVAL;
- set_gpfn_from_mfn(mfn_x(mfn) + i, gfn_x(gfn) + i);
+ set_pfn_from_mfn(mfn_add(mfn, i), gfn_x(gfn) + i);
}
return 0;
@@ -930,7 +930,7 @@ guest_physmap_add_entry(struct domain *d, gfn_t gfn, mfn_t
mfn,
else if ( p2m_is_ram(ot) && !p2m_is_paged(ot) )
{
ASSERT(mfn_valid(omfn));
- set_gpfn_from_mfn(mfn_x(omfn), INVALID_M2P_ENTRY);
+ set_pfn_from_mfn(omfn, INVALID_M2P_ENTRY);
}
else if ( ot == p2m_populate_on_demand )
{
@@ -974,7 +974,7 @@ guest_physmap_add_entry(struct domain *d, gfn_t gfn, mfn_t
mfn,
P2M_DEBUG("old gfn=%#lx -> mfn %#lx\n",
gfn_x(ogfn) , mfn_x(omfn));
if ( mfn_eq(omfn, mfn_add(mfn, i)) )
- p2m_remove_page(p2m, gfn_x(ogfn), mfn_x(mfn_add(mfn, i)),
+ p2m_remove_page(p2m, gfn_x(ogfn), mfn_add(mfn, i),
0);
}
}
@@ -992,8 +992,8 @@ guest_physmap_add_entry(struct domain *d, gfn_t gfn, mfn_t
mfn,
if ( !p2m_is_grant(t) )
{
for ( i = 0; i < (1UL << page_order); i++ )
- set_gpfn_from_mfn(mfn_x(mfn_add(mfn, i)),
- gfn_x(gfn_add(gfn, i)));
+ set_pfn_from_mfn(mfn_add(mfn, i),
+ gfn_x(gfn_add(gfn, i)));
}
}
@@ -1279,7 +1279,7 @@ static int set_typed_p2m_entry(struct domain *d, unsigned
long gfn_l,
for ( i = 0; i < (1UL << order); ++i )
{
ASSERT(mfn_valid(mfn_add(omfn, i)));
- set_gpfn_from_mfn(mfn_x(omfn) + i, INVALID_M2P_ENTRY);
+ set_pfn_from_mfn(mfn_add(omfn, i), INVALID_M2P_ENTRY);
}
}
@@ -1475,7 +1475,7 @@ int set_shared_p2m_entry(struct domain *d, unsigned long
gfn_l, mfn_t mfn)
pg_type = read_atomic(&(mfn_to_page(omfn)->u.inuse.type_info));
if ( (pg_type & PGT_count_mask) == 0
|| (pg_type & PGT_type_mask) != PGT_shared_page )
- set_gpfn_from_mfn(mfn_x(omfn), INVALID_M2P_ENTRY);
+ set_pfn_from_mfn(omfn, INVALID_M2P_ENTRY);
P2M_DEBUG("set shared %lx %lx\n", gfn_l, mfn_x(mfn));
rc = p2m_set_entry(p2m, gfn, mfn, PAGE_ORDER_4K, p2m_ram_shared,
@@ -1829,7 +1829,7 @@ int p2m_mem_paging_prep(struct domain *d, unsigned long
gfn_l, uint64_t buffer)
ret = p2m_set_entry(p2m, gfn, mfn, PAGE_ORDER_4K,
paging_mode_log_dirty(d) ? p2m_ram_logdirty
: p2m_ram_rw, a);
- set_gpfn_from_mfn(mfn_x(mfn), gfn_l);
+ set_pfn_from_mfn(mfn, gfn_l);
if ( !page_extant )
atomic_dec(&d->paged_pages);
@@ -1880,7 +1880,7 @@ void p2m_mem_paging_resume(struct domain *d,
vm_event_response_t *rsp)
p2m_ram_rw, a);
if ( !rc )
- set_gpfn_from_mfn(mfn_x(mfn), gfn_x(gfn));
+ set_pfn_from_mfn(mfn, gfn_x(gfn));
}
gfn_unlock(p2m, gfn, 0);
}
@@ -2706,7 +2706,7 @@ int p2m_change_altp2m_gfn(struct domain *d, unsigned int
idx,
{
mfn = ap2m->get_entry(ap2m, old_gfn, &t, &a, 0, NULL, NULL);
if ( mfn_valid(mfn) )
- p2m_remove_page(ap2m, gfn_x(old_gfn), mfn_x(mfn), PAGE_ORDER_4K);
+ p2m_remove_page(ap2m, gfn_x(old_gfn), mfn, PAGE_ORDER_4K);
rc = 0;
goto out;
}
@@ -2820,8 +2820,8 @@ void audit_p2m(struct domain *d,
{
struct page_info *page;
struct domain *od;
- unsigned long mfn, gfn;
- mfn_t p2mfn;
+ unsigned long gfn;
+ mfn_t p2mfn, mfn;
unsigned long orphans_count = 0, mpbad = 0, pmbad = 0;
p2m_access_t p2ma;
p2m_type_t type;
@@ -2843,53 +2843,53 @@ void audit_p2m(struct domain *d,
spin_lock(&d->page_alloc_lock);
page_list_for_each ( page, &d->page_list )
{
- mfn = mfn_x(page_to_mfn(page));
+ mfn = page_to_mfn(page);
- P2M_PRINTK("auditing guest page, mfn=%#lx\n", mfn);
+ P2M_PRINTK("auditing guest page, mfn=%"PRI_mfn"\n", mfn_x(mfn));
od = page_get_owner(page);
if ( od != d )
{
- P2M_PRINTK("mfn %"PRI_mfn" owner %pd != %pd\n", mfn, od, d);
+ P2M_PRINTK("mfn %"PRI_mfn" owner %pd != %pd\n", mfn_x(mfn), od, d);
continue;
}
- gfn = get_gpfn_from_mfn(mfn);
+ gfn = get_pfn_from_mfn(mfn);
if ( gfn == INVALID_M2P_ENTRY )
{
orphans_count++;
- P2M_PRINTK("orphaned guest page: mfn=%#lx has invalid gfn\n",
- mfn);
+ P2M_PRINTK("orphaned guest page: mfn=%"PRI_mfn" has invalid gfn\n",
+ mfn_x(mfn));
continue;
}
if ( SHARED_M2P(gfn) )
{
- P2M_PRINTK("shared mfn (%lx) on domain page list!\n",
- mfn);
+ P2M_PRINTK("shared mfn (%"PRI_mfn") on domain page list!\n",
+ mfn_x(mfn));
continue;
}
p2mfn = get_gfn_type_access(p2m, gfn, &type, &p2ma, 0, NULL);
- if ( mfn_x(p2mfn) != mfn )
+ if ( !mfn_eq(p2mfn, mfn) )
{
mpbad++;
- P2M_PRINTK("map mismatch mfn %#lx -> gfn %#lx -> mfn %#lx"
+ P2M_PRINTK("map mismatch mfn %"PRI_mfn" -> gfn %#lx -> mfn
%"PRI_mfn""
" (-> gfn %#lx)\n",
- mfn, gfn, mfn_x(p2mfn),
+ mfn_x(mfn), gfn, mfn_x(p2mfn),
(mfn_valid(p2mfn)
- ? get_gpfn_from_mfn(mfn_x(p2mfn))
+ ? get_pfn_from_mfn(p2mfn)
: -1u));
/* This m2p entry is stale: the domain has another frame in
* this physical slot. No great disaster, but for neatness,
* blow away the m2p entry. */
- set_gpfn_from_mfn(mfn, INVALID_M2P_ENTRY);
+ set_pfn_from_mfn(mfn, INVALID_M2P_ENTRY);
}
__put_gfn(p2m, gfn);
- P2M_PRINTK("OK: mfn=%#lx, gfn=%#lx, p2mfn=%#lx\n",
- mfn, gfn, mfn_x(p2mfn));
+ P2M_PRINTK("OK: mfn=%"PRI_mfn", gfn=%#lx, p2mfn=%"PRI_mfn"\n",
+ mfn_x(mfn), gfn, mfn_x(p2mfn));
}
spin_unlock(&d->page_alloc_lock);
diff --git a/xen/arch/x86/mm/paging.c b/xen/arch/x86/mm/paging.c
index 469bb76429..2f6df74135 100644
--- a/xen/arch/x86/mm/paging.c
+++ b/xen/arch/x86/mm/paging.c
@@ -344,7 +344,7 @@ void paging_mark_dirty(struct domain *d, mfn_t gmfn)
return;
/* We /really/ mean PFN here, even for non-translated guests. */
- pfn = _pfn(get_gpfn_from_mfn(mfn_x(gmfn)));
+ pfn = _pfn(get_pfn_from_mfn(gmfn));
paging_mark_pfn_dirty(d, pfn);
}
@@ -362,7 +362,7 @@ int paging_mfn_is_dirty(struct domain *d, mfn_t gmfn)
ASSERT(paging_mode_log_dirty(d));
/* We /really/ mean PFN here, even for non-translated guests. */
- pfn = _pfn(get_gpfn_from_mfn(mfn_x(gmfn)));
+ pfn = _pfn(get_pfn_from_mfn(gmfn));
/* Invalid pages can't be dirty. */
if ( unlikely(!VALID_M2P(pfn_x(pfn))) )
return 0;
diff --git a/xen/arch/x86/pv/dom0_build.c b/xen/arch/x86/pv/dom0_build.c
index 8abd5d255c..9f558b2932 100644
--- a/xen/arch/x86/pv/dom0_build.c
+++ b/xen/arch/x86/pv/dom0_build.c
@@ -39,7 +39,7 @@ void __init dom0_update_physmap(struct domain *d, unsigned
long pfn,
else
((unsigned int *)vphysmap_s)[pfn] = mfn;
- set_gpfn_from_mfn(mfn, pfn);
+ set_pfn_from_mfn(_mfn(mfn), pfn);
}
static __init void mark_pv_pt_pages_rdonly(struct domain *d,
@@ -789,8 +789,8 @@ int __init dom0_construct_pv(struct domain *d,
page_list_for_each ( page, &d->page_list )
{
mfn = mfn_x(page_to_mfn(page));
- BUG_ON(SHARED_M2P(get_gpfn_from_mfn(mfn)));
- if ( get_gpfn_from_mfn(mfn) >= count )
+ BUG_ON(SHARED_M2P(get_pfn_from_mfn(_mfn(mfn))));
+ if ( get_pfn_from_mfn(_mfn(mfn)) >= count )
{
BUG_ON(is_pv_32bit_domain(d));
if ( !page->u.inuse.type_info &&
diff --git a/xen/arch/x86/x86_64/traps.c b/xen/arch/x86/x86_64/traps.c
index 811c2cb37b..bf5c2060e7 100644
--- a/xen/arch/x86/x86_64/traps.c
+++ b/xen/arch/x86/x86_64/traps.c
@@ -200,7 +200,7 @@ void show_page_walk(unsigned long addr)
unmap_domain_page(l4t);
mfn = l4e_get_mfn(l4e);
pfn = mfn_valid(mfn) && machine_to_phys_mapping_valid ?
- get_gpfn_from_mfn(mfn_x(mfn)) : INVALID_M2P_ENTRY;
+ get_pfn_from_mfn(mfn) : INVALID_M2P_ENTRY;
printk(" L4[0x%03lx] = %"PRIpte" %016lx\n",
l4_table_offset(addr), l4e_get_intpte(l4e), pfn);
if ( !(l4e_get_flags(l4e) & _PAGE_PRESENT) || !mfn_valid(mfn) )
@@ -211,7 +211,7 @@ void show_page_walk(unsigned long addr)
unmap_domain_page(l3t);
mfn = l3e_get_mfn(l3e);
pfn = mfn_valid(mfn) && machine_to_phys_mapping_valid ?
- get_gpfn_from_mfn(mfn_x(mfn)) : INVALID_M2P_ENTRY;
+ get_pfn_from_mfn(mfn) : INVALID_M2P_ENTRY;
printk(" L3[0x%03lx] = %"PRIpte" %016lx%s\n",
l3_table_offset(addr), l3e_get_intpte(l3e), pfn,
(l3e_get_flags(l3e) & _PAGE_PSE) ? " (PSE)" : "");
@@ -225,7 +225,7 @@ void show_page_walk(unsigned long addr)
unmap_domain_page(l2t);
mfn = l2e_get_mfn(l2e);
pfn = mfn_valid(mfn) && machine_to_phys_mapping_valid ?
- get_gpfn_from_mfn(mfn_x(mfn)) : INVALID_M2P_ENTRY;
+ get_pfn_from_mfn(mfn) : INVALID_M2P_ENTRY;
printk(" L2[0x%03lx] = %"PRIpte" %016lx%s\n",
l2_table_offset(addr), l2e_get_intpte(l2e), pfn,
(l2e_get_flags(l2e) & _PAGE_PSE) ? " (PSE)" : "");
@@ -239,7 +239,7 @@ void show_page_walk(unsigned long addr)
unmap_domain_page(l1t);
mfn = l1e_get_mfn(l1e);
pfn = mfn_valid(mfn) && machine_to_phys_mapping_valid ?
- get_gpfn_from_mfn(mfn_x(mfn)) : INVALID_M2P_ENTRY;
+ get_pfn_from_mfn(mfn) : INVALID_M2P_ENTRY;
printk(" L1[0x%03lx] = %"PRIpte" %016lx\n",
l1_table_offset(addr), l1e_get_intpte(l1e), pfn);
}
diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c
index 41e4fa899d..239aac18dd 100644
--- a/xen/common/page_alloc.c
+++ b/xen/common/page_alloc.c
@@ -1430,7 +1430,7 @@ static void free_heap_pages(
/* This page is not a guest frame any more. */
page_set_owner(&pg[i], NULL); /* set_gpfn_from_mfn snoops pg owner */
- set_gpfn_from_mfn(mfn_x(mfn) + i, INVALID_M2P_ENTRY);
+ set_pfn_from_mfn(mfn_add(mfn, i), INVALID_M2P_ENTRY);
if ( need_scrub )
{
diff --git a/xen/include/asm-arm/mm.h b/xen/include/asm-arm/mm.h
index abf4cc23e4..11614f9107 100644
--- a/xen/include/asm-arm/mm.h
+++ b/xen/include/asm-arm/mm.h
@@ -319,7 +319,7 @@ struct page_info *get_page_from_gva(struct vcpu *v, vaddr_t
va,
#define SHARED_M2P(_e) ((_e) == SHARED_M2P_ENTRY)
/* Xen always owns P2M on ARM */
-#define set_gpfn_from_mfn(mfn, pfn) do { (void) (mfn), (void)(pfn); } while (0)
+static inline void set_pfn_from_mfn(mfn_t mfn, unsigned long pfn) {}
#define mfn_to_gmfn(_d, mfn) (mfn)
diff --git a/xen/include/asm-x86/grant_table.h
b/xen/include/asm-x86/grant_table.h
index 5871238f6d..b6a09c4c6c 100644
--- a/xen/include/asm-x86/grant_table.h
+++ b/xen/include/asm-x86/grant_table.h
@@ -41,7 +41,7 @@ static inline int replace_grant_host_mapping(uint64_t addr,
mfn_t frame,
#define gnttab_get_frame_gfn(gt, st, idx) ({ \
mfn_t mfn_ = (st) ? gnttab_status_mfn(gt, idx) \
: gnttab_shared_mfn(gt, idx); \
- unsigned long gpfn_ = get_gpfn_from_mfn(mfn_x(mfn_)); \
+ unsigned long gpfn_ = get_pfn_from_mfn(mfn_); \
VALID_M2P(gpfn_) ? _gfn(gpfn_) : INVALID_GFN; \
})
diff --git a/xen/include/asm-x86/mm.h b/xen/include/asm-x86/mm.h
index 53f2ed7c7d..2a4f42e78f 100644
--- a/xen/include/asm-x86/mm.h
+++ b/xen/include/asm-x86/mm.h
@@ -500,9 +500,10 @@ extern paddr_t mem_hotplug;
*/
extern bool machine_to_phys_mapping_valid;
-static inline void set_gpfn_from_mfn(unsigned long mfn, unsigned long pfn)
+static inline void set_pfn_from_mfn(mfn_t mfn_, unsigned long pfn)
{
- const struct domain *d = page_get_owner(mfn_to_page(_mfn(mfn)));
+ const unsigned long mfn = mfn_x(mfn_);
+ const struct domain *d = page_get_owner(mfn_to_page(mfn_));
unsigned long entry = (d && (d == dom_cow)) ? SHARED_M2P_ENTRY : pfn;
if ( !machine_to_phys_mapping_valid )
@@ -515,11 +516,14 @@ static inline void set_gpfn_from_mfn(unsigned long mfn,
unsigned long pfn)
extern struct rangeset *mmio_ro_ranges;
-#define get_gpfn_from_mfn(mfn) (machine_to_phys_mapping[(mfn)])
+static inline unsigned long get_pfn_from_mfn(mfn_t mfn)
+{
+ return machine_to_phys_mapping[mfn_x(mfn)];
+}
#define mfn_to_gmfn(_d, mfn) \
( (paging_mode_translate(_d)) \
- ? get_gpfn_from_mfn(mfn) \
+ ? get_pfn_from_mfn(_mfn(mfn)) \
: (mfn) )
#define compat_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >>
20))
diff --git a/xen/include/asm-x86/p2m.h b/xen/include/asm-x86/p2m.h
index a2c6049834..39dae242b0 100644
--- a/xen/include/asm-x86/p2m.h
+++ b/xen/include/asm-x86/p2m.h
@@ -505,7 +505,7 @@ static inline struct page_info *get_page_from_gfn(
static inline gfn_t mfn_to_gfn(const struct domain *d, mfn_t mfn)
{
if ( paging_mode_translate(d) )
- return _gfn(get_gpfn_from_mfn(mfn_x(mfn)));
+ return _gfn(get_pfn_from_mfn(mfn));
else
return _gfn(mfn_x(mfn));
}
--
2.17.1
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