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-rw-r--r--tools/libxc/Makefile2
-rw-r--r--tools/libxc/xc_mem_access.c21
-rw-r--r--tools/libxc/xc_mem_event.c15
-rw-r--r--tools/libxc/xc_mem_paging.c33
-rw-r--r--tools/libxc/xc_memshr.c16
-rw-r--r--tools/libxc/xenctrl.h9
-rw-r--r--tools/tests/xen-access/xen-access.c4
-rw-r--r--tools/xenpaging/xenpaging.c4
-rw-r--r--xen/arch/ia64/xen/dom0_ops.c2
-rw-r--r--xen/arch/x86/hvm/hvm.c4
-rw-r--r--xen/arch/x86/mm/mem_event.c161
-rw-r--r--xen/arch/x86/mm/mem_paging.c4
-rw-r--r--xen/arch/x86/mm/mem_sharing.c22
-rw-r--r--xen/arch/x86/mm/p2m.c18
-rw-r--r--xen/include/public/domctl.h43
-rw-r--r--xen/include/xen/sched.h6
16 files changed, 205 insertions, 159 deletions
diff --git a/tools/libxc/Makefile b/tools/libxc/Makefile
index 6b00abab50..29b47243c0 100644
--- a/tools/libxc/Makefile
+++ b/tools/libxc/Makefile
@@ -1,7 +1,7 @@
XEN_ROOT = $(CURDIR)/../..
include $(XEN_ROOT)/tools/Rules.mk
-MAJOR = 4.0
+MAJOR = 4.2
MINOR = 0
CTRL_SRCS-y :=
diff --git a/tools/libxc/xc_mem_access.c b/tools/libxc/xc_mem_access.c
index b9e66bbd07..6606878567 100644
--- a/tools/libxc/xc_mem_access.c
+++ b/tools/libxc/xc_mem_access.c
@@ -24,12 +24,29 @@
#include "xc_private.h"
+int xc_mem_access_enable(xc_interface *xch, domid_t domain_id,
+ void *shared_page, void *ring_page)
+{
+ return xc_mem_event_control(xch, domain_id,
+ XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE,
+ XEN_DOMCTL_MEM_EVENT_OP_ACCESS,
+ shared_page, ring_page, INVALID_MFN);
+}
+
+int xc_mem_access_disable(xc_interface *xch, domid_t domain_id)
+{
+ return xc_mem_event_control(xch, domain_id,
+ XEN_DOMCTL_MEM_EVENT_OP_ACCESS_DISABLE,
+ XEN_DOMCTL_MEM_EVENT_OP_ACCESS,
+ NULL, NULL, INVALID_MFN);
+}
+
int xc_mem_access_resume(xc_interface *xch, domid_t domain_id, unsigned long gfn)
{
return xc_mem_event_control(xch, domain_id,
XEN_DOMCTL_MEM_EVENT_OP_ACCESS_RESUME,
- XEN_DOMCTL_MEM_EVENT_OP_ACCESS, NULL, NULL,
- gfn);
+ XEN_DOMCTL_MEM_EVENT_OP_ACCESS,
+ NULL, NULL, gfn);
}
/*
diff --git a/tools/libxc/xc_mem_event.c b/tools/libxc/xc_mem_event.c
index ef8d4caa20..b40d269709 100644
--- a/tools/libxc/xc_mem_event.c
+++ b/tools/libxc/xc_mem_event.c
@@ -42,18 +42,3 @@ int xc_mem_event_control(xc_interface *xch, domid_t domain_id, unsigned int op,
return do_domctl(xch, &domctl);
}
-int xc_mem_event_enable(xc_interface *xch, domid_t domain_id,
- void *shared_page, void *ring_page)
-{
- return xc_mem_event_control(xch, domain_id,
- XEN_DOMCTL_MEM_EVENT_OP_ENABLE, 0,
- shared_page, ring_page, INVALID_MFN);
-}
-
-int xc_mem_event_disable(xc_interface *xch, domid_t domain_id)
-{
- return xc_mem_event_control(xch, domain_id,
- XEN_DOMCTL_MEM_EVENT_OP_DISABLE, 0,
- NULL, NULL, INVALID_MFN);
-}
-
diff --git a/tools/libxc/xc_mem_paging.c b/tools/libxc/xc_mem_paging.c
index db5be452f5..f917403b39 100644
--- a/tools/libxc/xc_mem_paging.c
+++ b/tools/libxc/xc_mem_paging.c
@@ -24,36 +24,53 @@
#include "xc_private.h"
+int xc_mem_paging_enable(xc_interface *xch, domid_t domain_id,
+ void *shared_page, void *ring_page)
+{
+ return xc_mem_event_control(xch, domain_id,
+ XEN_DOMCTL_MEM_EVENT_OP_PAGING_ENABLE,
+ XEN_DOMCTL_MEM_EVENT_OP_PAGING,
+ shared_page, ring_page, INVALID_MFN);
+}
+
+int xc_mem_paging_disable(xc_interface *xch, domid_t domain_id)
+{
+ return xc_mem_event_control(xch, domain_id,
+ XEN_DOMCTL_MEM_EVENT_OP_PAGING_DISABLE,
+ XEN_DOMCTL_MEM_EVENT_OP_PAGING,
+ NULL, NULL, INVALID_MFN);
+}
+
int xc_mem_paging_nominate(xc_interface *xch, domid_t domain_id, unsigned long gfn)
{
return xc_mem_event_control(xch, domain_id,
XEN_DOMCTL_MEM_EVENT_OP_PAGING_NOMINATE,
- XEN_DOMCTL_MEM_EVENT_OP_PAGING, NULL, NULL,
- gfn);
+ XEN_DOMCTL_MEM_EVENT_OP_PAGING,
+ NULL, NULL, gfn);
}
int xc_mem_paging_evict(xc_interface *xch, domid_t domain_id, unsigned long gfn)
{
return xc_mem_event_control(xch, domain_id,
XEN_DOMCTL_MEM_EVENT_OP_PAGING_EVICT,
- XEN_DOMCTL_MEM_EVENT_OP_PAGING, NULL, NULL,
- gfn);
+ XEN_DOMCTL_MEM_EVENT_OP_PAGING,
+ NULL, NULL, gfn);
}
int xc_mem_paging_prep(xc_interface *xch, domid_t domain_id, unsigned long gfn)
{
return xc_mem_event_control(xch, domain_id,
XEN_DOMCTL_MEM_EVENT_OP_PAGING_PREP,
- XEN_DOMCTL_MEM_EVENT_OP_PAGING, NULL, NULL,
- gfn);
+ XEN_DOMCTL_MEM_EVENT_OP_PAGING,
+ NULL, NULL, gfn);
}
int xc_mem_paging_resume(xc_interface *xch, domid_t domain_id, unsigned long gfn)
{
return xc_mem_event_control(xch, domain_id,
XEN_DOMCTL_MEM_EVENT_OP_PAGING_RESUME,
- XEN_DOMCTL_MEM_EVENT_OP_PAGING, NULL, NULL,
- gfn);
+ XEN_DOMCTL_MEM_EVENT_OP_PAGING,
+ NULL, NULL, gfn);
}
diff --git a/tools/libxc/xc_memshr.c b/tools/libxc/xc_memshr.c
index 8e5faf4bb4..eaa9d2771e 100644
--- a/tools/libxc/xc_memshr.c
+++ b/tools/libxc/xc_memshr.c
@@ -36,7 +36,7 @@ int xc_memshr_control(xc_interface *xch,
domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
domctl.domain = (domid_t)domid;
op = &(domctl.u.mem_sharing_op);
- op->op = XEN_DOMCTL_MEM_SHARING_OP_CONTROL;
+ op->op = XEN_DOMCTL_MEM_EVENT_OP_SHARING_CONTROL;
op->u.enable = enable;
return do_domctl(xch, &domctl);
@@ -55,7 +55,7 @@ int xc_memshr_nominate_gfn(xc_interface *xch,
domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
domctl.domain = (domid_t)domid;
op = &(domctl.u.mem_sharing_op);
- op->op = XEN_DOMCTL_MEM_SHARING_OP_NOMINATE_GFN;
+ op->op = XEN_DOMCTL_MEM_EVENT_OP_SHARING_NOMINATE_GFN;
op->u.nominate.u.gfn = gfn;
ret = do_domctl(xch, &domctl);
@@ -77,7 +77,7 @@ int xc_memshr_nominate_gref(xc_interface *xch,
domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
domctl.domain = (domid_t)domid;
op = &(domctl.u.mem_sharing_op);
- op->op = XEN_DOMCTL_MEM_SHARING_OP_NOMINATE_GREF;
+ op->op = XEN_DOMCTL_MEM_EVENT_OP_SHARING_NOMINATE_GREF;
op->u.nominate.u.grant_ref = gref;
ret = do_domctl(xch, &domctl);
@@ -97,7 +97,7 @@ int xc_memshr_share(xc_interface *xch,
domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
domctl.domain = 0;
op = &(domctl.u.mem_sharing_op);
- op->op = XEN_DOMCTL_MEM_SHARING_OP_SHARE;
+ op->op = XEN_DOMCTL_MEM_EVENT_OP_SHARING_SHARE;
op->u.share.source_handle = source_handle;
op->u.share.client_handle = client_handle;
@@ -114,7 +114,7 @@ int xc_memshr_domain_resume(xc_interface *xch,
domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
domctl.domain = (domid_t)domid;
op = &(domctl.u.mem_sharing_op);
- op->op = XEN_DOMCTL_MEM_SHARING_OP_RESUME;
+ op->op = XEN_DOMCTL_MEM_EVENT_OP_SHARING_RESUME;
return do_domctl(xch, &domctl);
}
@@ -130,7 +130,7 @@ int xc_memshr_debug_gfn(xc_interface *xch,
domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
domctl.domain = (domid_t)domid;
op = &(domctl.u.mem_sharing_op);
- op->op = XEN_DOMCTL_MEM_SHARING_OP_DEBUG_GFN;
+ op->op = XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_GFN;
op->u.debug.u.gfn = gfn;
return do_domctl(xch, &domctl);
@@ -147,7 +147,7 @@ int xc_memshr_debug_mfn(xc_interface *xch,
domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
domctl.domain = (domid_t)domid;
op = &(domctl.u.mem_sharing_op);
- op->op = XEN_DOMCTL_MEM_SHARING_OP_DEBUG_MFN;
+ op->op = XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_MFN;
op->u.debug.u.mfn = mfn;
return do_domctl(xch, &domctl);
@@ -164,7 +164,7 @@ int xc_memshr_debug_gref(xc_interface *xch,
domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
domctl.domain = (domid_t)domid;
op = &(domctl.u.mem_sharing_op);
- op->op = XEN_DOMCTL_MEM_SHARING_OP_DEBUG_GREF;
+ op->op = XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_GREF;
op->u.debug.u.gref = gref;
return do_domctl(xch, &domctl);
diff --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h
index 1b82ee0818..4bcb9bd6c9 100644
--- a/tools/libxc/xenctrl.h
+++ b/tools/libxc/xenctrl.h
@@ -1758,16 +1758,19 @@ int xc_mem_event_control(xc_interface *xch, domid_t domain_id, unsigned int op,
unsigned int mode, void *shared_page,
void *ring_page, unsigned long gfn);
-int xc_mem_event_enable(xc_interface *xch, domid_t domain_id,
+int xc_mem_paging_enable(xc_interface *xch, domid_t domain_id,
void *shared_page, void *ring_page);
-int xc_mem_event_disable(xc_interface *xch, domid_t domain_id);
-
+int xc_mem_paging_disable(xc_interface *xch, domid_t domain_id);
int xc_mem_paging_nominate(xc_interface *xch, domid_t domain_id,
unsigned long gfn);
int xc_mem_paging_evict(xc_interface *xch, domid_t domain_id, unsigned long gfn);
int xc_mem_paging_prep(xc_interface *xch, domid_t domain_id, unsigned long gfn);
int xc_mem_paging_resume(xc_interface *xch, domid_t domain_id,
unsigned long gfn);
+
+int xc_mem_access_enable(xc_interface *xch, domid_t domain_id,
+ void *shared_page, void *ring_page);
+int xc_mem_access_disable(xc_interface *xch, domid_t domain_id);
int xc_mem_access_resume(xc_interface *xch, domid_t domain_id,
unsigned long gfn);
diff --git a/tools/tests/xen-access/xen-access.c b/tools/tests/xen-access/xen-access.c
index 2b3265e2fe..4394f8f203 100644
--- a/tools/tests/xen-access/xen-access.c
+++ b/tools/tests/xen-access/xen-access.c
@@ -241,7 +241,7 @@ xenaccess_t *xenaccess_init(xc_interface **xch_r, domid_t domain_id)
mem_event_ring_lock_init(&xenaccess->mem_event);
/* Initialise Xen */
- rc = xc_mem_event_enable(xenaccess->xc_handle, xenaccess->mem_event.domain_id,
+ rc = xc_mem_access_enable(xenaccess->xc_handle, xenaccess->mem_event.domain_id,
xenaccess->mem_event.shared_page,
xenaccess->mem_event.ring_page);
if ( rc != 0 )
@@ -351,7 +351,7 @@ int xenaccess_teardown(xc_interface *xch, xenaccess_t *xenaccess)
return 0;
/* Tear down domain xenaccess in Xen */
- rc = xc_mem_event_disable(xenaccess->xc_handle, xenaccess->mem_event.domain_id);
+ rc = xc_mem_access_disable(xenaccess->xc_handle, xenaccess->mem_event.domain_id);
if ( rc != 0 )
{
ERROR("Error tearing down domain xenaccess in xen");
diff --git a/tools/xenpaging/xenpaging.c b/tools/xenpaging/xenpaging.c
index ebdba23db2..e2cbc614d0 100644
--- a/tools/xenpaging/xenpaging.c
+++ b/tools/xenpaging/xenpaging.c
@@ -234,7 +234,7 @@ static xenpaging_t *xenpaging_init(domid_t domain_id, int num_pages)
PAGE_SIZE);
/* Initialise Xen */
- rc = xc_mem_event_enable(xch, paging->mem_event.domain_id,
+ rc = xc_mem_paging_enable(xch, paging->mem_event.domain_id,
paging->mem_event.shared_page,
paging->mem_event.ring_page);
if ( rc != 0 )
@@ -353,7 +353,7 @@ static int xenpaging_teardown(xenpaging_t *paging)
xch = paging->xc_handle;
paging->xc_handle = NULL;
/* Tear down domain paging in Xen */
- rc = xc_mem_event_disable(xch, paging->mem_event.domain_id);
+ rc = xc_mem_paging_disable(xch, paging->mem_event.domain_id);
if ( rc != 0 )
{
ERROR("Error tearing down domain paging in xen");
diff --git a/xen/arch/ia64/xen/dom0_ops.c b/xen/arch/ia64/xen/dom0_ops.c
index 7eb446623a..f6ba0e3e03 100644
--- a/xen/arch/ia64/xen/dom0_ops.c
+++ b/xen/arch/ia64/xen/dom0_ops.c
@@ -688,7 +688,7 @@ long arch_do_domctl(xen_domctl_t *op, XEN_GUEST_HANDLE(xen_domctl_t) u_domctl)
switch(mec->op)
{
- case XEN_DOMCTL_MEM_SHARING_OP_CONTROL:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_CONTROL:
{
if (mec->u.enable) {
ret = -EINVAL; /* not implemented */
diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index 7f1372fde7..bce2df8d0a 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -4025,7 +4025,7 @@ static int hvm_memory_event_traps(long p, uint32_t reason,
if ( (p & HVMPME_onchangeonly) && (value == old) )
return 1;
- rc = mem_event_check_ring(d, &d->mem_event);
+ rc = mem_event_check_ring(d, &d->mem_access);
if ( rc )
return rc;
@@ -4048,7 +4048,7 @@ static int hvm_memory_event_traps(long p, uint32_t reason,
req.gla_valid = 1;
}
- mem_event_put_request(d, &d->mem_event, &req);
+ mem_event_put_request(d, &d->mem_access, &req);
return 1;
}
diff --git a/xen/arch/x86/mm/mem_event.c b/xen/arch/x86/mm/mem_event.c
index 05d5e0658d..c6c864dbd5 100644
--- a/xen/arch/x86/mm/mem_event.c
+++ b/xen/arch/x86/mm/mem_event.c
@@ -37,24 +37,52 @@
#define mem_event_ring_lock(_med) spin_lock(&(_med)->ring_lock)
#define mem_event_ring_unlock(_med) spin_unlock(&(_med)->ring_lock)
-static int mem_event_enable(struct domain *d, struct mem_event_domain *med, mfn_t ring_mfn, mfn_t shared_mfn)
+static int mem_event_enable(struct domain *d,
+ xen_domctl_mem_event_op_t *mec,
+ struct mem_event_domain *med)
{
int rc;
+ struct domain *dom_mem_event = current->domain;
+ struct vcpu *v = current;
+ unsigned long ring_addr = mec->ring_addr;
+ unsigned long shared_addr = mec->shared_addr;
+ l1_pgentry_t l1e;
+ unsigned long gfn;
+ p2m_type_t p2mt;
+ mfn_t ring_mfn;
+ mfn_t shared_mfn;
+
+ /* Only one helper at a time. If the helper crashed,
+ * the ring is in an undefined state and so is the guest.
+ */
+ if ( med->ring_page )
+ return -EBUSY;
+
+ /* Get MFN of ring page */
+ guest_get_eff_l1e(v, ring_addr, &l1e);
+ gfn = l1e_get_pfn(l1e);
+ ring_mfn = gfn_to_mfn(dom_mem_event, gfn, &p2mt);
+
+ if ( unlikely(!mfn_valid(mfn_x(ring_mfn))) )
+ return -EINVAL;
+
+ /* Get MFN of shared page */
+ guest_get_eff_l1e(v, shared_addr, &l1e);
+ gfn = l1e_get_pfn(l1e);
+ shared_mfn = gfn_to_mfn(dom_mem_event, gfn, &p2mt);
+
+ if ( unlikely(!mfn_valid(mfn_x(shared_mfn))) )
+ return -EINVAL;
/* Map ring and shared pages */
med->ring_page = map_domain_page(mfn_x(ring_mfn));
- if ( med->ring_page == NULL )
- goto err;
-
med->shared_page = map_domain_page(mfn_x(shared_mfn));
- if ( med->shared_page == NULL )
- goto err_ring;
/* Allocate event channel */
rc = alloc_unbound_xen_event_channel(d->vcpu[0],
current->domain->domain_id);
if ( rc < 0 )
- goto err_shared;
+ goto err;
((mem_event_shared_page_t *)med->shared_page)->port = rc;
med->xen_port = rc;
@@ -71,14 +99,14 @@ static int mem_event_enable(struct domain *d, struct mem_event_domain *med, mfn_
return 0;
- err_shared:
+ err:
unmap_domain_page(med->shared_page);
med->shared_page = NULL;
- err_ring:
+
unmap_domain_page(med->ring_page);
med->ring_page = NULL;
- err:
- return 1;
+
+ return rc;
}
static int mem_event_disable(struct mem_event_domain *med)
@@ -220,86 +248,79 @@ int mem_event_domctl(struct domain *d, xen_domctl_mem_event_op_t *mec,
rc = -ENOSYS;
- switch ( mec-> mode )
+ switch ( mec->mode )
{
- case 0:
+ case XEN_DOMCTL_MEM_EVENT_OP_PAGING:
{
+ struct mem_event_domain *med = &d->mem_paging;
+ rc = -ENODEV;
+ /* Only HAP is supported */
+ if ( !hap_enabled(d) )
+ break;
+
+ /* Currently only EPT is supported */
+ if ( boot_cpu_data.x86_vendor != X86_VENDOR_INTEL )
+ break;
+
switch( mec->op )
{
- case XEN_DOMCTL_MEM_EVENT_OP_ENABLE:
+ case XEN_DOMCTL_MEM_EVENT_OP_PAGING_ENABLE:
{
- struct domain *dom_mem_event = current->domain;
- struct vcpu *v = current;
- struct mem_event_domain *med = &d->mem_event;
- unsigned long ring_addr = mec->ring_addr;
- unsigned long shared_addr = mec->shared_addr;
- l1_pgentry_t l1e;
- unsigned long gfn;
- p2m_type_t p2mt;
- mfn_t ring_mfn;
- mfn_t shared_mfn;
-
- /* Only one xenpaging at a time. If xenpaging crashed,
- * the cache is in an undefined state and so is the guest
- */
- rc = -EBUSY;
- if ( med->ring_page )
- break;
-
- /* Currently only EPT is supported */
- rc = -ENODEV;
- if ( !(hap_enabled(d) &&
- (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)) )
- break;
-
- /* Get MFN of ring page */
- guest_get_eff_l1e(v, ring_addr, &l1e);
- gfn = l1e_get_pfn(l1e);
- ring_mfn = gfn_to_mfn(dom_mem_event, gfn, &p2mt);
+ rc = mem_event_enable(d, mec, med);
+ }
+ break;
- rc = -EINVAL;
- if ( unlikely(!mfn_valid(mfn_x(ring_mfn))) )
- break;
+ case XEN_DOMCTL_MEM_EVENT_OP_PAGING_DISABLE:
+ {
+ rc = mem_event_disable(med);
+ }
+ break;
- /* Get MFN of shared page */
- guest_get_eff_l1e(v, shared_addr, &l1e);
- gfn = l1e_get_pfn(l1e);
- shared_mfn = gfn_to_mfn(dom_mem_event, gfn, &p2mt);
+ default:
+ {
+ if ( med->ring_page )
+ rc = mem_paging_domctl(d, mec, u_domctl);
+ }
+ break;
+ }
+ }
+ break;
- rc = -EINVAL;
- if ( unlikely(!mfn_valid(mfn_x(shared_mfn))) )
- break;
+ case XEN_DOMCTL_MEM_EVENT_OP_ACCESS:
+ {
+ struct mem_event_domain *med = &d->mem_access;
+ rc = -ENODEV;
+ /* Only HAP is supported */
+ if ( !hap_enabled(d) )
+ break;
- rc = -EINVAL;
- if ( mem_event_enable(d, med, ring_mfn, shared_mfn) != 0 )
- break;
+ /* Currently only EPT is supported */
+ if ( boot_cpu_data.x86_vendor != X86_VENDOR_INTEL )
+ break;
- rc = 0;
+ switch( mec->op )
+ {
+ case XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE:
+ {
+ rc = mem_event_enable(d, mec, med);
}
break;
- case XEN_DOMCTL_MEM_EVENT_OP_DISABLE:
+ case XEN_DOMCTL_MEM_EVENT_OP_ACCESS_DISABLE:
{
- rc = mem_event_disable(&d->mem_event);
+ rc = mem_event_disable(&d->mem_access);
}
break;
default:
- rc = -ENOSYS;
- break;
+ {
+ if ( med->ring_page )
+ rc = mem_access_domctl(d, mec, u_domctl);
}
break;
+ }
}
- case XEN_DOMCTL_MEM_EVENT_OP_PAGING:
- {
- rc = mem_paging_domctl(d, mec, u_domctl);
- break;
- }
- case XEN_DOMCTL_MEM_EVENT_OP_ACCESS:
- {
- rc = mem_access_domctl(d, mec, u_domctl);
- break;
- }
+ break;
}
return rc;
diff --git a/xen/arch/x86/mm/mem_paging.c b/xen/arch/x86/mm/mem_paging.c
index 55b36f9155..5c02095163 100644
--- a/xen/arch/x86/mm/mem_paging.c
+++ b/xen/arch/x86/mm/mem_paging.c
@@ -28,10 +28,6 @@
int mem_paging_domctl(struct domain *d, xen_domctl_mem_event_op_t *mec,
XEN_GUEST_HANDLE(void) u_domctl)
{
- /* Only HAP is supported */
- if ( !hap_enabled(d) )
- return -ENODEV;
-
switch( mec->op )
{
case XEN_DOMCTL_MEM_EVENT_OP_PAGING_NOMINATE:
diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c
index dd4825471e..c33795dc37 100644
--- a/xen/arch/x86/mm/mem_sharing.c
+++ b/xen/arch/x86/mm/mem_sharing.c
@@ -281,12 +281,12 @@ static struct page_info* mem_sharing_alloc_page(struct domain *d,
vcpu_pause_nosync(v);
req.flags |= MEM_EVENT_FLAG_VCPU_PAUSED;
- if(mem_event_check_ring(d, &d->mem_event)) return page;
+ if(mem_event_check_ring(d, &d->mem_share)) return page;
req.gfn = gfn;
req.p2mt = p2m_ram_shared;
req.vcpu_id = v->vcpu_id;
- mem_event_put_request(d, &d->mem_event, &req);
+ mem_event_put_request(d, &d->mem_share, &req);
return page;
}
@@ -301,7 +301,7 @@ int mem_sharing_sharing_resume(struct domain *d)
mem_event_response_t rsp;
/* Get request off the ring */
- mem_event_get_response(&d->mem_event, &rsp);
+ mem_event_get_response(&d->mem_share, &rsp);
/* Unpause domain/vcpu */
if( rsp.flags & MEM_EVENT_FLAG_VCPU_PAUSED )
@@ -697,14 +697,14 @@ int mem_sharing_domctl(struct domain *d, xen_domctl_mem_sharing_op_t *mec)
switch(mec->op)
{
- case XEN_DOMCTL_MEM_SHARING_OP_CONTROL:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_CONTROL:
{
d->arch.hvm_domain.mem_sharing_enabled = mec->u.enable;
rc = 0;
}
break;
- case XEN_DOMCTL_MEM_SHARING_OP_NOMINATE_GFN:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_NOMINATE_GFN:
{
unsigned long gfn = mec->u.nominate.u.gfn;
shr_handle_t handle;
@@ -715,7 +715,7 @@ int mem_sharing_domctl(struct domain *d, xen_domctl_mem_sharing_op_t *mec)
}
break;
- case XEN_DOMCTL_MEM_SHARING_OP_NOMINATE_GREF:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_NOMINATE_GREF:
{
grant_ref_t gref = mec->u.nominate.u.grant_ref;
unsigned long gfn;
@@ -730,7 +730,7 @@ int mem_sharing_domctl(struct domain *d, xen_domctl_mem_sharing_op_t *mec)
}
break;
- case XEN_DOMCTL_MEM_SHARING_OP_SHARE:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_SHARE:
{
shr_handle_t sh = mec->u.share.source_handle;
shr_handle_t ch = mec->u.share.client_handle;
@@ -738,7 +738,7 @@ int mem_sharing_domctl(struct domain *d, xen_domctl_mem_sharing_op_t *mec)
}
break;
- case XEN_DOMCTL_MEM_SHARING_OP_RESUME:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_RESUME:
{
if(!mem_sharing_enabled(d))
return -EINVAL;
@@ -746,21 +746,21 @@ int mem_sharing_domctl(struct domain *d, xen_domctl_mem_sharing_op_t *mec)
}
break;
- case XEN_DOMCTL_MEM_SHARING_OP_DEBUG_GFN:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_GFN:
{
unsigned long gfn = mec->u.debug.u.gfn;
rc = mem_sharing_debug_gfn(d, gfn);
}
break;
- case XEN_DOMCTL_MEM_SHARING_OP_DEBUG_MFN:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_MFN:
{
unsigned long mfn = mec->u.debug.u.mfn;
rc = mem_sharing_debug_mfn(mfn);
}
break;
- case XEN_DOMCTL_MEM_SHARING_OP_DEBUG_GREF:
+ case XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_GREF:
{
grant_ref_t gref = mec->u.debug.u.gref;
rc = mem_sharing_debug_gref(d, gref);
diff --git a/xen/arch/x86/mm/p2m.c b/xen/arch/x86/mm/p2m.c
index d8f622ffa3..c62aa12da7 100644
--- a/xen/arch/x86/mm/p2m.c
+++ b/xen/arch/x86/mm/p2m.c
@@ -755,7 +755,7 @@ void p2m_mem_paging_drop_page(struct domain *d, unsigned long gfn)
mem_event_request_t req;
/* Check that there's space on the ring for this request */
- if ( mem_event_check_ring(d, &d->mem_event) == 0)
+ if ( mem_event_check_ring(d, &d->mem_paging) == 0)
{
/* Send release notification to pager */
memset(&req, 0, sizeof(req));
@@ -763,7 +763,7 @@ void p2m_mem_paging_drop_page(struct domain *d, unsigned long gfn)
req.gfn = gfn;
req.vcpu_id = v->vcpu_id;
- mem_event_put_request(d, &d->mem_event, &req);
+ mem_event_put_request(d, &d->mem_paging, &req);
}
}
@@ -775,7 +775,7 @@ void p2m_mem_paging_populate(struct domain *d, unsigned long gfn)
struct p2m_domain *p2m = p2m_get_hostp2m(d);
/* Check that there's space on the ring for this request */
- if ( mem_event_check_ring(d, &d->mem_event) )
+ if ( mem_event_check_ring(d, &d->mem_paging) )
return;
memset(&req, 0, sizeof(req));
@@ -803,7 +803,7 @@ void p2m_mem_paging_populate(struct domain *d, unsigned long gfn)
else if ( p2mt != p2m_ram_paging_out && p2mt != p2m_ram_paged )
{
/* gfn is already on its way back and vcpu is not paused */
- mem_event_put_req_producers(&d->mem_event);
+ mem_event_put_req_producers(&d->mem_paging);
return;
}
@@ -812,7 +812,7 @@ void p2m_mem_paging_populate(struct domain *d, unsigned long gfn)
req.p2mt = p2mt;
req.vcpu_id = v->vcpu_id;
- mem_event_put_request(d, &d->mem_event, &req);
+ mem_event_put_request(d, &d->mem_paging, &req);
}
int p2m_mem_paging_prep(struct domain *d, unsigned long gfn)
@@ -842,7 +842,7 @@ void p2m_mem_paging_resume(struct domain *d)
mfn_t mfn;
/* Pull the response off the ring */
- mem_event_get_response(&d->mem_event, &rsp);
+ mem_event_get_response(&d->mem_paging, &rsp);
/* Fix p2m entry if the page was not dropped */
if ( !(rsp.flags & MEM_EVENT_FLAG_DROP_PAGE) )
@@ -889,7 +889,7 @@ void p2m_mem_access_check(unsigned long gpa, bool_t gla_valid, unsigned long gla
p2m_unlock(p2m);
/* Otherwise, check if there is a memory event listener, and send the message along */
- res = mem_event_check_ring(d, &d->mem_event);
+ res = mem_event_check_ring(d, &d->mem_access);
if ( res < 0 )
{
/* No listener */
@@ -933,7 +933,7 @@ void p2m_mem_access_check(unsigned long gpa, bool_t gla_valid, unsigned long gla
req.vcpu_id = v->vcpu_id;
- mem_event_put_request(d, &d->mem_event, &req);
+ mem_event_put_request(d, &d->mem_access, &req);
/* VCPU paused, mem event request sent */
}
@@ -943,7 +943,7 @@ void p2m_mem_access_resume(struct p2m_domain *p2m)
struct domain *d = p2m->domain;
mem_event_response_t rsp;
- mem_event_get_response(&d->mem_event, &rsp);
+ mem_event_get_response(&d->mem_access, &rsp);
/* Unpause domain */
if ( rsp.flags & MEM_EVENT_FLAG_VCPU_PAUSED )
diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h
index c0dbc0234e..84f236d563 100644
--- a/xen/include/public/domctl.h
+++ b/xen/include/public/domctl.h
@@ -708,20 +708,18 @@ struct xen_domctl_gdbsx_domstatus {
/* XEN_DOMCTL_mem_event_op */
-/* Add and remove memory handlers */
-#define XEN_DOMCTL_MEM_EVENT_OP_ENABLE 0
-#define XEN_DOMCTL_MEM_EVENT_OP_DISABLE 1
-
/*
+* Domain memory paging
* Page memory in and out.
*/
#define XEN_DOMCTL_MEM_EVENT_OP_PAGING 1
-/* Domain memory paging */
-#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_NOMINATE 0
-#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_EVICT 1
-#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_PREP 2
-#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_RESUME 3
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_ENABLE 0
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_DISABLE 1
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_NOMINATE 2
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_EVICT 3
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_PREP 4
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_RESUME 5
/*
* Access permissions.
@@ -734,11 +732,14 @@ struct xen_domctl_gdbsx_domstatus {
* ACCESS_RESUME mode for the following domctl.
*/
#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS 2
-#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS_RESUME 0
+
+#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE 0
+#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS_DISABLE 1
+#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS_RESUME 2
struct xen_domctl_mem_event_op {
- uint32_t op; /* XEN_DOMCTL_MEM_EVENT_OP_* */
- uint32_t mode; /* XEN_DOMCTL_MEM_EVENT_ENABLE_* */
+ uint32_t op; /* XEN_DOMCTL_MEM_EVENT_OP_*_* */
+ uint32_t mode; /* XEN_DOMCTL_MEM_EVENT_OP_* */
/* OP_ENABLE */
uint64_aligned_t shared_addr; /* IN: Virtual address of shared page */
@@ -755,14 +756,16 @@ DEFINE_XEN_GUEST_HANDLE(xen_domctl_mem_event_op_t);
*/
/* XEN_DOMCTL_mem_sharing_op */
-#define XEN_DOMCTL_MEM_SHARING_OP_CONTROL 0
-#define XEN_DOMCTL_MEM_SHARING_OP_NOMINATE_GFN 1
-#define XEN_DOMCTL_MEM_SHARING_OP_NOMINATE_GREF 2
-#define XEN_DOMCTL_MEM_SHARING_OP_SHARE 3
-#define XEN_DOMCTL_MEM_SHARING_OP_RESUME 4
-#define XEN_DOMCTL_MEM_SHARING_OP_DEBUG_GFN 5
-#define XEN_DOMCTL_MEM_SHARING_OP_DEBUG_MFN 6
-#define XEN_DOMCTL_MEM_SHARING_OP_DEBUG_GREF 7
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING 3
+
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_CONTROL 0
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_NOMINATE_GFN 1
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_NOMINATE_GREF 2
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_SHARE 3
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_RESUME 4
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_GFN 5
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_MFN 6
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_DEBUG_GREF 7
#define XEN_DOMCTL_MEM_SHARING_S_HANDLE_INVALID (-10)
#define XEN_DOMCTL_MEM_SHARING_C_HANDLE_INVALID (-9)
diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h
index 2bda1edd7b..c6b3a5916f 100644
--- a/xen/include/xen/sched.h
+++ b/xen/include/xen/sched.h
@@ -317,8 +317,12 @@ struct domain
/* Non-migratable and non-restoreable? */
bool_t disable_migrate;
+ /* Memory sharing support */
+ struct mem_event_domain mem_share;
/* Memory paging support */
- struct mem_event_domain mem_event;
+ struct mem_event_domain mem_paging;
+ /* Memory access support */
+ struct mem_event_domain mem_access;
/* Currently computed from union of all vcpu cpu-affinity masks. */
nodemask_t node_affinity;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 09:21:03 +0000