* [PATCH 02/04] p2m: adjust p2m interfaces to track page sizes
@ 2011-08-26 14:45 Christoph Egger
0 siblings, 0 replies; only message in thread
From: Christoph Egger @ 2011-08-26 14:45 UTC (permalink / raw)
To: xen-devel, Tim Deegan
[-- Attachment #1: Type: text/plain, Size: 264 bytes --]
--
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Einsteinring 24, 85689 Dornach b. Muenchen
Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
[-- Attachment #2: xen_superpage2.diff --]
[-- Type: text/plain, Size: 22092 bytes --]
adjust p2m interfaces to track page sizes
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/hvm/hvm.c
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -1220,7 +1220,7 @@ int hvm_hap_nested_page_fault(unsigned l
}
p2m = p2m_get_hostp2m(v->domain);
- mfn = gfn_to_mfn_type_p2m(p2m, gfn, &p2mt, &p2ma, p2m_guest);
+ mfn = gfn_to_mfn_type_p2m(p2m, gfn, &p2mt, &p2ma, p2m_guest, NULL);
/* Check access permissions first, then handle faults */
if ( access_valid && (mfn_x(mfn) != INVALID_MFN) )
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/hvm/svm/svm.c
--- a/xen/arch/x86/hvm/svm/svm.c
+++ b/xen/arch/x86/hvm/svm/svm.c
@@ -1160,7 +1160,7 @@ static void svm_do_nested_pgfault(struct
p2m = p2m_get_p2m(v);
_d.gpa = gpa;
_d.qualification = 0;
- _d.mfn = mfn_x(gfn_to_mfn_type_p2m(p2m, gfn, &_d.p2mt, &p2ma, p2m_query));
+ _d.mfn = mfn_x(gfn_to_mfn_type_p2m(p2m, gfn, &_d.p2mt, &p2ma, p2m_query, NULL));
__trace_var(TRC_HVM_NPF, 0, sizeof(_d), &_d);
}
@@ -1180,7 +1180,7 @@ static void svm_do_nested_pgfault(struct
if ( p2m == NULL )
p2m = p2m_get_p2m(v);
/* Everything else is an error. */
- mfn = gfn_to_mfn_type_p2m(p2m, gfn, &p2mt, &p2ma, p2m_guest);
+ mfn = gfn_to_mfn_type_p2m(p2m, gfn, &p2mt, &p2ma, p2m_guest, NULL);
gdprintk(XENLOG_ERR,
"SVM violation gpa %#"PRIpaddr", mfn %#lx, type %i\n",
gpa, mfn_x(mfn), p2mt);
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/guest_walk.c
--- a/xen/arch/x86/mm/guest_walk.c
+++ b/xen/arch/x86/mm/guest_walk.c
@@ -95,7 +95,7 @@ static inline void *map_domain_gfn(struc
p2m_access_t a;
/* Translate the gfn, unsharing if shared */
- *mfn = gfn_to_mfn_type_p2m(p2m, gfn_x(gfn), p2mt, &a, p2m_unshare);
+ *mfn = gfn_to_mfn_type_p2m(p2m, gfn_x(gfn), p2mt, &a, p2m_unshare, NULL);
if ( p2m_is_paging(*p2mt) )
{
ASSERT(!p2m_is_nestedp2m(p2m));
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/hap/guest_walk.c
--- a/xen/arch/x86/mm/hap/guest_walk.c
+++ b/xen/arch/x86/mm/hap/guest_walk.c
@@ -40,15 +40,17 @@
#include <asm/p2m.h>
unsigned long hap_gva_to_gfn(GUEST_PAGING_LEVELS)(
- struct vcpu *v, struct p2m_domain *p2m, unsigned long gva, uint32_t *pfec)
+ struct vcpu *v, struct p2m_domain *p2m, unsigned long gva, uint32_t *pfec,
+ unsigned int *page_order)
{
unsigned long cr3 = v->arch.hvm_vcpu.guest_cr[3];
- return hap_p2m_ga_to_gfn(GUEST_PAGING_LEVELS)(v, p2m, cr3, gva, pfec);
+ return hap_p2m_ga_to_gfn(GUEST_PAGING_LEVELS)(v, p2m, cr3, gva, pfec,
+ page_order);
}
unsigned long hap_p2m_ga_to_gfn(GUEST_PAGING_LEVELS)(
struct vcpu *v, struct p2m_domain *p2m, unsigned long cr3,
- paddr_t ga, uint32_t *pfec)
+ paddr_t ga, uint32_t *pfec, unsigned int *page_order)
{
uint32_t missing;
mfn_t top_mfn;
@@ -59,7 +61,7 @@ unsigned long hap_p2m_ga_to_gfn(GUEST_PA
/* Get the top-level table's MFN */
top_mfn = gfn_to_mfn_type_p2m(p2m, cr3 >> PAGE_SHIFT,
- &p2mt, &p2ma, p2m_unshare);
+ &p2mt, &p2ma, p2m_unshare, NULL);
if ( p2m_is_paging(p2mt) )
{
ASSERT(!p2m_is_nestedp2m(p2m));
@@ -92,7 +94,7 @@ unsigned long hap_p2m_ga_to_gfn(GUEST_PA
if ( missing == 0 )
{
gfn_t gfn = guest_l1e_get_gfn(gw.l1e);
- gfn_to_mfn_type_p2m(p2m, gfn_x(gfn), &p2mt, &p2ma, p2m_unshare);
+ gfn_to_mfn_type_p2m(p2m, gfn_x(gfn), &p2mt, &p2ma, p2m_unshare, NULL);
if ( p2m_is_paging(p2mt) )
{
ASSERT(!p2m_is_nestedp2m(p2m));
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/hap/hap.c
--- a/xen/arch/x86/mm/hap/hap.c
+++ b/xen/arch/x86/mm/hap/hap.c
@@ -890,14 +890,15 @@ hap_write_p2m_entry(struct vcpu *v, unsi
}
static unsigned long hap_gva_to_gfn_real_mode(
- struct vcpu *v, struct p2m_domain *p2m, unsigned long gva, uint32_t *pfec)
+ struct vcpu *v, struct p2m_domain *p2m, unsigned long gva, uint32_t *pfec,
+ unsigned int *page_order)
{
return ((paddr_t)gva >> PAGE_SHIFT);
}
static unsigned long hap_p2m_ga_to_gfn_real_mode(
struct vcpu *v, struct p2m_domain *p2m, unsigned long cr3,
- paddr_t ga, uint32_t *pfec)
+ paddr_t ga, uint32_t *pfec, unsigned int *page_order)
{
return (ga >> PAGE_SHIFT);
}
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/hap/nested_hap.c
--- a/xen/arch/x86/mm/hap/nested_hap.c
+++ b/xen/arch/x86/mm/hap/nested_hap.c
@@ -99,7 +99,7 @@ nestedp2m_write_p2m_entry(struct p2m_dom
static void
nestedhap_fix_p2m(struct vcpu *v, struct p2m_domain *p2m,
paddr_t L2_gpa, paddr_t L0_gpa,
- p2m_type_t p2mt, p2m_access_t p2ma)
+ unsigned int page_order, p2m_type_t p2mt, p2m_access_t p2ma)
{
int rv = 1;
ASSERT(p2m);
@@ -129,14 +129,16 @@ nestedhap_fix_p2m(struct vcpu *v, struct
* value tells the upper level what to do.
*/
static int
-nestedhap_walk_L0_p2m(struct p2m_domain *p2m, paddr_t L1_gpa, paddr_t *L0_gpa)
+nestedhap_walk_L0_p2m(struct p2m_domain *p2m,
+ paddr_t L1_gpa, paddr_t *L0_gpa, unsigned int *page_order)
{
mfn_t mfn;
p2m_type_t p2mt;
p2m_access_t p2ma;
/* walk L0 P2M table */
- mfn = gfn_to_mfn_type_p2m(p2m, L1_gpa >> PAGE_SHIFT, &p2mt, &p2ma, p2m_query);
+ mfn = gfn_to_mfn_type_p2m(p2m, L1_gpa >> PAGE_SHIFT,
+ &p2mt, &p2ma, p2m_query, page_order);
if ( p2m_is_paging(p2mt) || p2m_is_shared(p2mt) || !p2m_is_ram(p2mt) )
return NESTEDHVM_PAGEFAULT_ERROR;
@@ -153,7 +155,8 @@ nestedhap_walk_L0_p2m(struct p2m_domain
* L1_gpa. The result value tells what to do next.
*/
static int
-nestedhap_walk_L1_p2m(struct vcpu *v, paddr_t L2_gpa, paddr_t *L1_gpa)
+nestedhap_walk_L1_p2m(struct vcpu *v, paddr_t L2_gpa, paddr_t *L1_gpa,
+ unsigned int *page_order)
{
uint32_t pfec;
unsigned long nested_cr3, gfn;
@@ -161,7 +164,7 @@ nestedhap_walk_L1_p2m(struct vcpu *v, pa
nested_cr3 = nhvm_vcpu_hostcr3(v);
/* Walk the guest-supplied NPT table, just as if it were a pagetable */
- gfn = paging_ga_to_gfn_cr3(v, nested_cr3, L2_gpa, &pfec);
+ gfn = paging_ga_to_gfn_cr3(v, nested_cr3, L2_gpa, &pfec, page_order);
if ( gfn == INVALID_GFN )
return NESTEDHVM_PAGEFAULT_INJECT;
@@ -187,7 +190,7 @@ nestedhvm_hap_nested_page_fault(struct v
nested_p2m = p2m_get_nestedp2m(v, nhvm_vcpu_hostcr3(v));
/* walk the L1 P2M table */
- rv = nestedhap_walk_L1_p2m(v, L2_gpa, &L1_gpa);
+ rv = nestedhap_walk_L1_p2m(v, L2_gpa, &L1_gpa, NULL);
/* let caller to handle these two cases */
switch (rv) {
@@ -203,7 +206,7 @@ nestedhvm_hap_nested_page_fault(struct v
}
/* ==> we have to walk L0 P2M */
- rv = nestedhap_walk_L0_p2m(p2m, L1_gpa, &L0_gpa);
+ rv = nestedhap_walk_L0_p2m(p2m, L1_gpa, &L0_gpa, NULL);
/* let upper level caller to handle these two cases */
switch (rv) {
@@ -219,7 +222,7 @@ nestedhvm_hap_nested_page_fault(struct v
}
/* fix p2m_get_pagetable(nested_p2m) */
- nestedhap_fix_p2m(v, nested_p2m, L2_gpa, L0_gpa,
+ nestedhap_fix_p2m(v, nested_p2m, L2_gpa, L0_gpa, PAGE_ORDER_4K,
p2m_ram_rw,
p2m_access_rwx /* FIXME: Should use same permission as l1 guest */);
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/hap/private.h
--- a/xen/arch/x86/mm/hap/private.h
+++ b/xen/arch/x86/mm/hap/private.h
@@ -28,24 +28,27 @@
unsigned long hap_gva_to_gfn_2_levels(struct vcpu *v,
struct p2m_domain *p2m,
unsigned long gva,
- uint32_t *pfec);
+ uint32_t *pfec,
+ unsigned int *page_order);
unsigned long hap_gva_to_gfn_3_levels(struct vcpu *v,
struct p2m_domain *p2m,
unsigned long gva,
- uint32_t *pfec);
+ uint32_t *pfec,
+ unsigned int *page_order);
unsigned long hap_gva_to_gfn_4_levels(struct vcpu *v,
struct p2m_domain *p2m,
unsigned long gva,
- uint32_t *pfec);
+ uint32_t *pfec,
+ unsigned int *page_order);
unsigned long hap_p2m_ga_to_gfn_2_levels(struct vcpu *v,
struct p2m_domain *p2m, unsigned long cr3,
- paddr_t ga, uint32_t *pfec);
+ paddr_t ga, uint32_t *pfec, unsigned int *page_order);
unsigned long hap_p2m_ga_to_gfn_3_levels(struct vcpu *v,
struct p2m_domain *p2m, unsigned long cr3,
- paddr_t ga, uint32_t *pfec);
+ paddr_t ga, uint32_t *pfec, unsigned int *page_order);
unsigned long hap_p2m_ga_to_gfn_4_levels(struct vcpu *v,
struct p2m_domain *p2m, unsigned long cr3,
- paddr_t ga, uint32_t *pfec);
+ paddr_t ga, uint32_t *pfec, unsigned int *page_order);
#endif /* __HAP_PRIVATE_H__ */
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/p2m-ept.c
--- a/xen/arch/x86/mm/p2m-ept.c
+++ b/xen/arch/x86/mm/p2m-ept.c
@@ -509,7 +509,7 @@ out:
/* Read ept p2m entries */
static mfn_t ept_get_entry(struct p2m_domain *p2m,
unsigned long gfn, p2m_type_t *t, p2m_access_t* a,
- p2m_query_t q)
+ p2m_query_t q, unsigned int *page_order)
{
struct domain *d = p2m->domain;
ept_entry_t *table = map_domain_page(ept_get_asr(d));
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/p2m-pt.c
--- a/xen/arch/x86/mm/p2m-pt.c
+++ b/xen/arch/x86/mm/p2m-pt.c
@@ -503,7 +503,8 @@ static int p2m_pod_check_and_populate(st
/* Read the current domain's p2m table (through the linear mapping). */
static mfn_t p2m_gfn_to_mfn_current(struct p2m_domain *p2m,
unsigned long gfn, p2m_type_t *t,
- p2m_access_t *a, p2m_query_t q)
+ p2m_access_t *a, p2m_query_t q,
+ unsigned int *page_order)
{
mfn_t mfn = _mfn(INVALID_MFN);
p2m_type_t p2mt = p2m_mmio_dm;
@@ -676,7 +677,8 @@ out:
static mfn_t
p2m_gfn_to_mfn(struct p2m_domain *p2m, unsigned long gfn,
- p2m_type_t *t, p2m_access_t *a, p2m_query_t q)
+ p2m_type_t *t, p2m_access_t *a, p2m_query_t q,
+ unsigned int *page_order)
{
mfn_t mfn;
paddr_t addr = ((paddr_t)gfn) << PAGE_SHIFT;
@@ -699,7 +701,7 @@ p2m_gfn_to_mfn(struct p2m_domain *p2m, u
/* Use the fast path with the linear mapping if we can */
if ( p2m == p2m_get_hostp2m(current->domain) )
- return p2m_gfn_to_mfn_current(p2m, gfn, t, a, q);
+ return p2m_gfn_to_mfn_current(p2m, gfn, t, a, q, page_order);
mfn = pagetable_get_mfn(p2m_get_pagetable(p2m));
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/p2m.c
--- a/xen/arch/x86/mm/p2m.c
+++ b/xen/arch/x86/mm/p2m.c
@@ -307,7 +307,7 @@ void p2m_teardown(struct p2m_domain *p2m
#ifdef __x86_64__
for ( gfn=0; gfn < p2m->max_mapped_pfn; gfn++ )
{
- mfn = gfn_to_mfn_type_p2m(p2m, gfn, &t, &a, p2m_query);
+ mfn = gfn_to_mfn_type_p2m(p2m, gfn, &t, &a, p2m_query, NULL);
if ( mfn_valid(mfn) && (t == p2m_ram_shared) )
{
ASSERT(!p2m_is_nestedp2m(p2m));
@@ -372,7 +372,7 @@ p2m_remove_page(struct p2m_domain *p2m,
{
for ( i = 0; i < (1UL << page_order); i++ )
{
- mfn_return = p2m->get_entry(p2m, gfn + i, &t, &a, p2m_query);
+ mfn_return = p2m->get_entry(p2m, gfn + i, &t, &a, p2m_query, NULL);
if ( !p2m_is_grant(t) )
set_gpfn_from_mfn(mfn+i, INVALID_M2P_ENTRY);
ASSERT( !p2m_is_valid(t) || mfn + i == mfn_x(mfn_return) );
@@ -877,7 +877,7 @@ void p2m_mem_access_check(unsigned long
/* First, handle rx2rw conversion automatically */
p2m_lock(p2m);
- mfn = p2m->get_entry(p2m, gfn, &p2mt, &p2ma, p2m_query);
+ mfn = p2m->get_entry(p2m, gfn, &p2mt, &p2ma, p2m_query, NULL);
if ( access_w && p2ma == p2m_access_rx2rw )
{
@@ -1035,7 +1035,7 @@ int p2m_get_mem_access(struct domain *d,
return 0;
}
- mfn = p2m->get_entry(p2m, pfn, &t, &a, p2m_query);
+ mfn = p2m->get_entry(p2m, pfn, &t, &a, p2m_query, NULL);
if ( mfn_x(mfn) == INVALID_MFN )
return -ESRCH;
@@ -1182,9 +1182,8 @@ p2m_get_p2m(struct vcpu *v)
return p2m_get_nestedp2m(v, nhvm_vcpu_hostcr3(v));
}
-unsigned long paging_gva_to_gfn(struct vcpu *v,
- unsigned long va,
- uint32_t *pfec)
+unsigned long paging_gva_to_gfn1(struct vcpu *v, unsigned long va,
+ uint32_t *pfec, unsigned int *page_order)
{
struct p2m_domain *hostp2m = p2m_get_hostp2m(v->domain);
const struct paging_mode *hostmode = paging_get_hostmode(v);
@@ -1201,14 +1200,14 @@ unsigned long paging_gva_to_gfn(struct v
/* translate l2 guest va into l2 guest gfn */
p2m = p2m_get_nestedp2m(v, ncr3);
mode = paging_get_nestedmode(v);
- gfn = mode->gva_to_gfn(v, p2m, va, pfec);
+ gfn = mode->gva_to_gfn(v, p2m, va, pfec, page_order);
/* translate l2 guest gfn into l1 guest gfn */
return hostmode->p2m_ga_to_gfn(v, hostp2m, ncr3,
- gfn << PAGE_SHIFT, pfec);
+ gfn << PAGE_SHIFT, pfec, page_order);
}
- return hostmode->gva_to_gfn(v, hostp2m, va, pfec);
+ return hostmode->gva_to_gfn(v, hostp2m, va, pfec, page_order);
}
/*
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/shadow/multi.c
--- a/xen/arch/x86/mm/shadow/multi.c
+++ b/xen/arch/x86/mm/shadow/multi.c
@@ -3749,7 +3749,7 @@ sh_invlpg(struct vcpu *v, unsigned long
static unsigned long
sh_gva_to_gfn(struct vcpu *v, struct p2m_domain *p2m,
- unsigned long va, uint32_t *pfec)
+ unsigned long va, uint32_t *pfec, unsigned int *page_order)
/* Called to translate a guest virtual address to what the *guest*
* pagetables would map it to. */
{
@@ -4799,7 +4799,7 @@ static mfn_t emulate_gva_to_mfn(struct v
uint32_t pfec = PFEC_page_present | PFEC_write_access;
/* Translate the VA to a GFN */
- gfn = sh_gva_to_gfn(v, NULL, vaddr, &pfec);
+ gfn = sh_gva_to_gfn(v, NULL, vaddr, &pfec, NULL);
if ( gfn == INVALID_GFN )
{
if ( is_hvm_vcpu(v) )
diff -r ec93fa9caebb -r 61ab53a4af83 xen/arch/x86/mm/shadow/types.h
--- a/xen/arch/x86/mm/shadow/types.h
+++ b/xen/arch/x86/mm/shadow/types.h
@@ -193,9 +193,11 @@ static inline shadow_l4e_t shadow_l4e_fr
/* Override gfn_to_mfn to work with gfn_t */
#undef gfn_to_mfn_query
-#define gfn_to_mfn_query(d, g, t) gfn_to_mfn_type((d), gfn_x(g), (t), p2m_query)
+#define gfn_to_mfn_query(d, g, t) \
+ _gfn_to_mfn_type((d), gfn_x(g), (t), p2m_query, NULL)
#undef gfn_to_mfn_guest
-#define gfn_to_mfn_guest(d, g, t) gfn_to_mfn_type((d), gfn_x(g), (t), p2m_guest)
+#define gfn_to_mfn_guest(d, g, t) \
+ _gfn_to_mfn_type((d), gfn_x(g), (t), p2m_guest, NULL)
/* The shadow types needed for the various levels. */
diff -r ec93fa9caebb -r 61ab53a4af83 xen/include/asm-x86/guest_pt.h
--- a/xen/include/asm-x86/guest_pt.h
+++ b/xen/include/asm-x86/guest_pt.h
@@ -53,7 +53,8 @@ gfn_to_paddr(gfn_t gfn)
/* Override gfn_to_mfn to work with gfn_t */
#undef gfn_to_mfn
-#define gfn_to_mfn(d, g, t) gfn_to_mfn_type((d), gfn_x(g), (t), p2m_alloc)
+#define gfn_to_mfn(d, g, t) \
+ gfn_to_mfn_type((d), gfn_x(g), (t), p2m_alloc, NULL)
/* Types of the guest's page tables and access functions for them */
diff -r ec93fa9caebb -r 61ab53a4af83 xen/include/asm-x86/p2m.h
--- a/xen/include/asm-x86/p2m.h
+++ b/xen/include/asm-x86/p2m.h
@@ -233,7 +233,8 @@ struct p2m_domain {
unsigned long gfn,
p2m_type_t *p2mt,
p2m_access_t *p2ma,
- p2m_query_t q);
+ p2m_query_t q,
+ unsigned int *page_order);
void (*change_entry_type_global)(struct p2m_domain *p2m,
p2m_type_t ot,
p2m_type_t nt);
@@ -306,7 +307,8 @@ struct p2m_domain *p2m_get_p2m(struct vc
* main one. */
static inline mfn_t
gfn_to_mfn_type_p2m(struct p2m_domain *p2m, unsigned long gfn,
- p2m_type_t *t, p2m_access_t *a, p2m_query_t q)
+ p2m_type_t *t, p2m_access_t *a, p2m_query_t q,
+ unsigned int *page_order)
{
mfn_t mfn;
@@ -318,14 +320,14 @@ gfn_to_mfn_type_p2m(struct p2m_domain *p
return _mfn(gfn);
}
- mfn = p2m->get_entry(p2m, gfn, t, a, q);
+ mfn = p2m->get_entry(p2m, gfn, t, a, q, page_order);
#ifdef __x86_64__
if ( q == p2m_unshare && p2m_is_shared(*t) )
{
ASSERT(!p2m_is_nestedp2m(p2m));
mem_sharing_unshare_page(p2m->domain, gfn, 0);
- mfn = p2m->get_entry(p2m, gfn, t, a, q);
+ mfn = p2m->get_entry(p2m, gfn, t, a, q, page_order);
}
#endif
@@ -344,22 +346,26 @@ gfn_to_mfn_type_p2m(struct p2m_domain *p
/* General conversion function from gfn to mfn */
-static inline mfn_t gfn_to_mfn_type(struct domain *d,
+static inline mfn_t _gfn_to_mfn_type(struct domain *d,
unsigned long gfn, p2m_type_t *t,
- p2m_query_t q)
+ p2m_query_t q, unsigned int *page_order)
{
p2m_access_t a;
- return gfn_to_mfn_type_p2m(p2m_get_hostp2m(d), gfn, t, &a, q);
+ return gfn_to_mfn_type_p2m(p2m_get_hostp2m(d), gfn, t, &a, q, page_order);
}
/* Syntactic sugar: most callers will use one of these.
* N.B. gfn_to_mfn_query() is the _only_ one guaranteed not to take the
* p2m lock; none of the others can be called with the p2m or paging
* lock held. */
-#define gfn_to_mfn(d, g, t) gfn_to_mfn_type((d), (g), (t), p2m_alloc)
-#define gfn_to_mfn_query(d, g, t) gfn_to_mfn_type((d), (g), (t), p2m_query)
-#define gfn_to_mfn_guest(d, g, t) gfn_to_mfn_type((d), (g), (t), p2m_guest)
-#define gfn_to_mfn_unshare(d, g, t) gfn_to_mfn_type((d), (g), (t), p2m_unshare)
+#define gfn_to_mfn(d, g, t) \
+ _gfn_to_mfn_type((d), (g), (t), p2m_alloc, NULL)
+#define gfn_to_mfn_query(d, g, t) \
+ _gfn_to_mfn_type((d), (g), (t), p2m_query, NULL)
+#define gfn_to_mfn_guest(d, g, t) \
+ _gfn_to_mfn_type((d), (g), (t), p2m_guest, NULL)
+#define gfn_to_mfn_unshare(d, g, t) \
+ _gfn_to_mfn_type((d), (g), (t), p2m_unshare, NULL)
/* Compatibility function exporting the old untyped interface */
static inline unsigned long gmfn_to_mfn(struct domain *d, unsigned long gpfn)
diff -r ec93fa9caebb -r 61ab53a4af83 xen/include/asm-x86/paging.h
--- a/xen/include/asm-x86/paging.h
+++ b/xen/include/asm-x86/paging.h
@@ -111,11 +111,13 @@ struct paging_mode {
unsigned long (*gva_to_gfn )(struct vcpu *v,
struct p2m_domain *p2m,
unsigned long va,
- uint32_t *pfec);
+ uint32_t *pfec,
+ unsigned int *page_order);
unsigned long (*p2m_ga_to_gfn )(struct vcpu *v,
struct p2m_domain *p2m,
unsigned long cr3,
- paddr_t ga, uint32_t *pfec);
+ paddr_t ga, uint32_t *pfec,
+ unsigned int *page_order);
void (*update_cr3 )(struct vcpu *v, int do_locking);
void (*update_paging_modes )(struct vcpu *v);
void (*write_p2m_entry )(struct vcpu *v, unsigned long gfn,
@@ -262,23 +264,29 @@ static inline int paging_invlpg(struct v
* walking the tables. The caller should set the PFEC_page_present bit
* in pfec[0]; in the failure case, that bit will be cleared if appropriate. */
#define INVALID_GFN (-1UL)
-unsigned long paging_gva_to_gfn(struct vcpu *v,
+unsigned long paging_gva_to_gfn1(struct vcpu *v,
unsigned long va,
- uint32_t *pfec);
+ uint32_t *pfec,
+ unsigned int *page_order);
+
+#define paging_gva_to_gfn(v, va, pfec) \
+ paging_gva_to_gfn1((v), (va), (pfec), NULL)
/* Translate a guest address using a particular CR3 value. This is used
* to by nested HAP code, to walk the guest-supplied NPT tables as if
* they were pagetables.
* Use 'paddr_t' for the guest address so it won't overflow when
- * guest or nested guest is in 32bit PAE mode.
+ * l1 or l2 guest is in 32bit PAE mode.
*/
static inline unsigned long paging_ga_to_gfn_cr3(struct vcpu *v,
unsigned long cr3,
paddr_t ga,
- uint32_t *pfec)
+ uint32_t *pfec,
+ unsigned int *page_order)
{
struct p2m_domain *p2m = v->domain->arch.p2m;
- return paging_get_hostmode(v)->p2m_ga_to_gfn(v, p2m, cr3, ga, pfec);
+ return paging_get_hostmode(v)->p2m_ga_to_gfn(v, p2m, cr3, ga, pfec,
+ page_order);
}
/* Update all the things that are derived from the guest's CR3.
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