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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v3 13/14] xen/mm: Convert {s, g}et_gpfn_from_mfn() to use typesafe MFN
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>
Acked-by: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
Changes in v3:
- Add Tamas's acked-by for mem_sharing bits
- Add Stefano's acked-by
- Fix coding style in the declaration of mem_sharing_lookup()
---
xen/arch/x86/cpu/mcheck/mcaction.c | 2 +-
xen/arch/x86/mm.c | 14 ++++----
xen/arch/x86/mm/mem_sharing.c | 19 +++++------
xen/arch/x86/mm/p2m-pod.c | 4 +--
xen/arch/x86/mm/p2m-pt.c | 34 +++++++++++---------
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 | 41 +++++++++++------------
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 | 16 +++++----
xen/include/asm-x86/p2m.h | 2 +-
14 files changed, 111 insertions(+), 103 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 3bb12782a1..83e0f0fb6b 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -500,7 +500,7 @@ 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);
@@ -1075,7 +1075,7 @@ 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;
}
@@ -1086,7 +1086,7 @@ 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);
@@ -2602,7 +2602,7 @@ static int alloc_page_type(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;
@@ -2886,7 +2886,7 @@ 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)) )
@@ -3998,7 +3998,7 @@ 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);
@@ -4522,7 +4522,7 @@ 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 f16a3f5324..fc1fb6fe89 100644
--- a/xen/arch/x86/mm/mem_sharing.c
+++ b/xen/arch/x86/mm/mem_sharing.c
@@ -391,11 +391,12 @@ static inline void mem_sharing_gfn_destroy(struct
page_info *page,
xfree(gfn_info);
}
-static struct page_info* mem_sharing_lookup(unsigned long mfn)
+static struct page_info *mem_sharing_lookup(mfn_t mfn)
{
- if ( mfn_valid(_mfn(mfn)) )
+ if ( mfn_valid(mfn) )
{
- struct page_info* page = mfn_to_page(_mfn(mfn));
+ struct page_info* page = mfn_to_page(mfn);
+
if ( page_get_owner(page) == dom_cow )
{
/* Count has to be at least two, because we're called
@@ -404,7 +405,7 @@ static struct page_info* mem_sharing_lookup(unsigned long
mfn)
unsigned long 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;
}
}
@@ -464,10 +465,10 @@ 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)) )
{
MEM_SHARING_DEBUG("mfn %lx shared, but wrong m2p entry (%lx)!\n",
- mfn_x(mfn), get_gpfn_from_mfn(mfn_x(mfn)));
+ mfn_x(mfn), get_pfn_from_mfn(mfn));
errors++;
}
@@ -693,7 +694,7 @@ static inline 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;
@@ -877,7 +878,7 @@ 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);
@@ -1222,7 +1223,7 @@ private_page_found:
}
/* 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,
* marking dirty is feasible */
diff --git a/xen/arch/x86/mm/p2m-pod.c b/xen/arch/x86/mm/p2m-pod.c
index 4313863066..9e001738f4 100644
--- a/xen/arch/x86/mm/p2m-pod.c
+++ b/xen/arch/x86/mm/p2m-pod.c
@@ -652,7 +652,7 @@ 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 );
@@ -1203,7 +1203,7 @@ 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 84ddc1834b..a9d9ada4a0 100644
--- a/xen/arch/x86/mm/p2m-pt.c
+++ b/xen/arch/x86/mm/p2m-pt.c
@@ -991,7 +991,8 @@ 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));
@@ -1030,19 +1031,20 @@ 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);
@@ -1066,17 +1068,17 @@ 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,
+ P2M_PRINTK("mismatch: gfn %#lx -> mfn
%"PRI_mfn" -> gfn %#lx\n",
+ gfn + i1, mfn_x(mfn_add(mfn, i1)),
m2pfn);
BUG();
}
@@ -1098,17 +1100,17 @@ 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 208c196667..d2a876c769 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;
@@ -924,7 +924,7 @@ 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 )
{
@@ -967,7 +967,7 @@ 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);
}
}
@@ -984,8 +984,8 @@ 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)));
}
}
else
@@ -1286,7 +1286,7 @@ 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);
}
}
@@ -1481,7 +1481,7 @@ 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,
@@ -1836,7 +1836,7 @@ 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);
@@ -1887,7 +1887,7 @@ 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);
}
@@ -2693,7 +2693,7 @@ 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;
}
@@ -2807,8 +2807,8 @@ 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;
@@ -2830,53 +2830,53 @@ 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 011089368a..1ef77e1182 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 1bd53e9c08..00f6946ca7 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,
@@ -798,8 +798,8 @@ 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 23d9357657..dbc1255476 100644
--- a/xen/arch/x86/x86_64/traps.c
+++ b/xen/arch/x86/x86_64/traps.c
@@ -184,7 +184,8 @@ void vcpu_show_registers(const struct vcpu *v)
void show_page_walk(unsigned long addr)
{
- unsigned long pfn, mfn = read_cr3() >> PAGE_SHIFT;
+ unsigned long pfn;
+ mfn_t mfn = maddr_to_mfn(read_cr3());
l4_pgentry_t l4e, *l4t;
l3_pgentry_t l3e, *l3t;
l2_pgentry_t l2e, *l2t;
@@ -194,52 +195,52 @@ void show_page_walk(unsigned long addr)
if ( !is_canonical_address(addr) )
return;
- l4t = map_domain_page(_mfn(mfn));
+ l4t = map_domain_page(mfn);
l4e = l4t[l4_table_offset(addr)];
unmap_domain_page(l4t);
- mfn = l4e_get_pfn(l4e);
- pfn = mfn_valid(_mfn(mfn)) && machine_to_phys_mapping_valid ?
- get_gpfn_from_mfn(mfn) : INVALID_M2P_ENTRY;
+ mfn = l4e_get_mfn(l4e);
+ pfn = mfn_valid(mfn) && machine_to_phys_mapping_valid ?
+ 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(mfn)) )
+ !mfn_valid(mfn) )
return;
- l3t = map_domain_page(_mfn(mfn));
+ l3t = map_domain_page(mfn);
l3e = l3t[l3_table_offset(addr)];
unmap_domain_page(l3t);
- mfn = l3e_get_pfn(l3e);
- pfn = mfn_valid(_mfn(mfn)) && machine_to_phys_mapping_valid ?
- get_gpfn_from_mfn(mfn) : INVALID_M2P_ENTRY;
+ mfn = l3e_get_mfn(l3e);
+ pfn = mfn_valid(mfn) && machine_to_phys_mapping_valid ?
+ 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)" : "");
if ( !(l3e_get_flags(l3e) & _PAGE_PRESENT) ||
(l3e_get_flags(l3e) & _PAGE_PSE) ||
- !mfn_valid(_mfn(mfn)) )
+ !mfn_valid(mfn) )
return;
- l2t = map_domain_page(_mfn(mfn));
+ l2t = map_domain_page(mfn);
l2e = l2t[l2_table_offset(addr)];
unmap_domain_page(l2t);
- mfn = l2e_get_pfn(l2e);
- pfn = mfn_valid(_mfn(mfn)) && machine_to_phys_mapping_valid ?
- get_gpfn_from_mfn(mfn) : INVALID_M2P_ENTRY;
+ mfn = l2e_get_mfn(l2e);
+ pfn = mfn_valid(mfn) && machine_to_phys_mapping_valid ?
+ 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)" : "");
if ( !(l2e_get_flags(l2e) & _PAGE_PRESENT) ||
(l2e_get_flags(l2e) & _PAGE_PSE) ||
- !mfn_valid(_mfn(mfn)) )
+ !mfn_valid(mfn) )
return;
- l1t = map_domain_page(_mfn(mfn));
+ l1t = map_domain_page(mfn);
l1e = l1t[l1_table_offset(addr)];
unmap_domain_page(l1t);
- mfn = l1e_get_pfn(l1e);
- pfn = mfn_valid(_mfn(mfn)) && machine_to_phys_mapping_valid ?
- get_gpfn_from_mfn(mfn) : INVALID_M2P_ENTRY;
+ mfn = l1e_get_mfn(l1e);
+ pfn = mfn_valid(mfn) && machine_to_phys_mapping_valid ?
+ 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 04c9dc0c65..400fa9838c 100644
--- a/xen/common/page_alloc.c
+++ b/xen/common/page_alloc.c
@@ -1416,7 +1416,7 @@ 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 a9cb98a6c7..3c03be3bca 100644
--- a/xen/include/asm-arm/mm.h
+++ b/xen/include/asm-arm/mm.h
@@ -322,7 +322,7 @@ struct page_info *get_page_from_gva(struct vcpu *v, vaddr_t
va,
#define SHARED_M2P(_e) ((_e) == SHARED_M2P_ENTRY)
/* We don't have a M2P 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) {}
/* Arch-specific portion of memory_op hypercall. */
long arch_memory_op(int op, XEN_GUEST_HANDLE_PARAM(void) arg);
diff --git a/xen/include/asm-x86/grant_table.h
b/xen/include/asm-x86/grant_table.h
index 661228dd39..d731b9e49f 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 dcae558764..4f7ead5ecc 100644
--- a/xen/include/asm-x86/mm.h
+++ b/xen/include/asm-x86/mm.h
@@ -492,22 +492,26 @@ extern struct domain *dom_xen, *dom_io, *dom_cow; /* for
vmcoreinfo */
*/
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)
{
- struct domain *d = page_get_owner(mfn_to_page(_mfn(mfn)));
+ const unsigned long mfn_ = mfn_x(mfn);
+ 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 )
return;
- if ( mfn < (RDWR_COMPAT_MPT_VIRT_END - RDWR_COMPAT_MPT_VIRT_START) / 4 )
- compat_machine_to_phys_mapping[mfn] = entry;
- machine_to_phys_mapping[mfn] = entry;
+ if ( mfn_ < (RDWR_COMPAT_MPT_VIRT_END - RDWR_COMPAT_MPT_VIRT_START) / 4 )
+ compat_machine_to_phys_mapping[mfn_] = entry;
+ machine_to_phys_mapping[mfn_] = entry;
}
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 compat_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >>
20))
#define compat_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) <<
20))
diff --git a/xen/include/asm-x86/p2m.h b/xen/include/asm-x86/p2m.h
index 1a075547e2..4c6e582a67 100644
--- a/xen/include/asm-x86/p2m.h
+++ b/xen/include/asm-x86/p2m.h
@@ -509,7 +509,7 @@ 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));
}
--
2.11.0
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