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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 1/2] xen: Implement ioctl to restrict privcmd to a specific domain
Add a RESTRICT ioctl to /dev/xen/privcmd, which allows privileged commands
file descriptor to be restricted to only working with a particular domain.
Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
---
drivers/xen/privcmd.c | 209 ++++++-
include/uapi/xen/privcmd.h | 6 +
include/xen/interface/domctl.h | 1090 ++++++++++++++++++++++++++++++++++++
include/xen/interface/hvm/hvm_op.h | 66 +++
include/xen/interface/memory.h | 8 +
include/xen/interface/xen.h | 1 +
6 files changed, 1373 insertions(+), 7 deletions(-)
create mode 100644 include/xen/interface/domctl.h
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index 569a13b..c177850 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -32,6 +32,10 @@
#include <xen/xen.h>
#include <xen/privcmd.h>
#include <xen/interface/xen.h>
+#include <xen/interface/sched.h>
+#include <xen/interface/memory.h>
+#include <xen/interface/domctl.h>
+#include <xen/interface/hvm/hvm_op.h>
#include <xen/features.h>
#include <xen/page.h>
#include <xen/xen-ops.h>
@@ -43,24 +47,173 @@ MODULE_LICENSE("GPL");
#define PRIV_VMA_LOCKED ((void *)1)
+#define UNRESTRICTED_DOMID ((domid_t)-1)
+
static int privcmd_vma_range_is_mapped(
struct vm_area_struct *vma,
unsigned long addr,
unsigned long nr_pages);
-static long privcmd_ioctl_hypercall(void __user *udata)
+struct privcmd_check_buf {
+ unsigned copy_back;
+ void __user *copy_ptr;
+ union {
+ struct sched_remote_shutdown remote_shutdown;
+ struct xen_memory_exchange mem_exchange;
+ struct xen_domctl domctl;
+ unsigned char buf[1];
+ } u;
+};
+
+static long privcmd_check_hypercall(struct privcmd_hypercall *hypercall,
+ struct privcmd_check *check,
+ domid_t restrict_domid)
+{
+#define DOMID_AT(type, field) do { \
+ BUILD_BUG_ON(sizeof(type) > sizeof(check->u)); \
+ BUILD_BUG_ON(sizeof(((type *) 0)->field) != sizeof(domid_t)); \
+ check->copy_back = sizeof(type); \
+ domid_offset = offsetof(type, field); \
+ } while (0)
+
+/* we copy from userspace and replace arguments to avoid unsafe data */
+#define FETCH_ARG(dest, arg_num, size) do { \
+ check->copy_ptr = (void *) (long) hypercall->arg[arg_num]; \
+ if (copy_from_user(dest, check->copy_ptr, size)) \
+ return -EFAULT; \
+ hypercall->arg[arg_num] = (long) dest; \
+ } while (0)
+
+ unsigned domid_offset;
+
+ /* default to invalid so on cases not handled we fail */
+ domid_t domid = UNRESTRICTED_DOMID;
+
+ switch (hypercall->op) {
+ case __HYPERVISOR_sched_op:
+ if (hypercall->arg[0] == SCHEDOP_remote_shutdown) {
+ FETCH_ARG(&check->u.remote_shutdown, 1,
+ sizeof(check->u.remote_shutdown));
+ domid = check->u.remote_shutdown.domain_id;
+ }
+ break;
+
+ case __HYPERVISOR_domctl:
+ FETCH_ARG(&check->u.domctl, 0, sizeof(check->u.domctl));
+ check->copy_back = sizeof(check->u.domctl);
+ /* avoid to create a domain */
+ if (check->u.domctl.cmd == XEN_DOMCTL_createdomain)
+ return -EACCES;
+ /* limit versions to avoid possible future bigger buffer */
+ if (check->u.domctl.interface_version >
XEN_DOMCTL_INTERFACE_VERSION)
+ return -EACCES;
+ domid = check->u.domctl.domain;
+ break;
+
+ case __HYPERVISOR_memory_op:
+ switch (hypercall->arg[0]) {
+ case XENMEM_increase_reservation:
+ case XENMEM_decrease_reservation:
+ case XENMEM_populate_physmap:
+ DOMID_AT(struct xen_memory_reservation, domid);
+ break;
+ case XENMEM_exchange:
+ DOMID_AT(struct xen_memory_exchange, in.domid);
+ break;
+ case XENMEM_current_reservation:
+ case XENMEM_maximum_reservation:
+ case XENMEM_maximum_gpfn:
+ check->copy_back = sizeof(domid);
+ domid_offset = 0;
+ break;
+ case XENMEM_add_to_physmap:
+ DOMID_AT(struct xen_add_to_physmap, domid);
+ break;
+ case XENMEM_set_memory_map:
+ DOMID_AT(struct xen_foreign_memory_map, domid);
+ break;
+ default:
+ return -EACCES;
+ }
+ FETCH_ARG(&check->u, 1, check->copy_back);
+ domid = *((domid_t *) &check->u.buf[domid_offset]);
+
+ /* extra check for XENMEM_exchange, exchange in the same
+ * domain */
+ if (hypercall->arg[0] == XENMEM_exchange &&
+ check->u.mem_exchange.in.domid !=
check->u.mem_exchange.out.domid)
+ return -EACCES;
+ break;
+
+ case __HYPERVISOR_hvm_op:
+ switch (hypercall->arg[0]) {
+ case HVMOP_set_param:
+ case HVMOP_get_param:
+ DOMID_AT(struct xen_hvm_param, domid);
+ break;
+ case HVMOP_set_pci_intx_level:
+ DOMID_AT(struct xen_hvm_set_pci_intx_level, domid);
+ break;
+ case HVMOP_set_isa_irq_level:
+ DOMID_AT(struct xen_hvm_set_isa_irq_level, domid);
+ break;
+ case HVMOP_set_pci_link_route:
+ DOMID_AT(struct xen_hvm_set_pci_link_route, domid);
+ break;
+ case HVMOP_modified_memory:
+ DOMID_AT(struct xen_hvm_modified_memory, domid);
+ break;
+ case HVMOP_set_mem_type:
+ DOMID_AT(struct xen_hvm_set_mem_type, domid);
+ break;
+ case HVMOP_track_dirty_vram:
+ DOMID_AT(struct xen_hvm_track_dirty_vram, domid);
+ break;
+ default:
+ return -EACCES;
+ }
+ FETCH_ARG(&check->u, 1, check->copy_back);
+ domid = *((domid_t *) &check->u.buf[domid_offset]);
+ break;
+ }
+
+ if (domid != restrict_domid)
+ return -EACCES;
+
+ return 0;
+}
+
+static long privcmd_ioctl_hypercall(void __user *udata,
+ domid_t restrict_domid)
{
struct privcmd_hypercall hypercall;
+ struct privcmd_check_buf check_buf;
long ret;
+ check_buf.copy_back = 0;
+ check_buf.copy_ptr = NULL;
+
if (copy_from_user(&hypercall, udata, sizeof(hypercall)))
return -EFAULT;
+ /* we must check domain we are using */
+ if (restrict_domid != UNRESTRICTED_DOMID) {
+ ret = privcmd_check_hypercall(&hypercall, &check_buf,
+ restrict_domid);
+ if (ret)
+ return ret;
+ }
+
ret = privcmd_call(hypercall.op,
hypercall.arg[0], hypercall.arg[1],
hypercall.arg[2], hypercall.arg[3],
hypercall.arg[4]);
+ if (check_buf.copy_back && check_buf.copy_ptr && ret >= 0)
+ if (copy_to_user(check_buf.copy_ptr, &check_buf.u,
+ check_buf.copy_back))
+ ret = -EFAULT;
+
return ret;
}
@@ -193,7 +346,7 @@ static int mmap_mfn_range(void *data, void *state)
return 0;
}
-static long privcmd_ioctl_mmap(void __user *udata)
+static long privcmd_ioctl_mmap(void __user *udata, domid_t restrict_domid)
{
struct privcmd_mmap mmapcmd;
struct mm_struct *mm = current->mm;
@@ -209,6 +362,10 @@ static long privcmd_ioctl_mmap(void __user *udata)
if (copy_from_user(&mmapcmd, udata, sizeof(mmapcmd)))
return -EFAULT;
+ if (restrict_domid != UNRESTRICTED_DOMID &&
+ restrict_domid != mmapcmd.dom)
+ return -EACCES;
+
rc = gather_array(&pagelist,
mmapcmd.num, sizeof(struct privcmd_mmap_entry),
mmapcmd.entry);
@@ -367,7 +524,8 @@ static int alloc_empty_pages(struct vm_area_struct *vma,
int numpgs)
static struct vm_operations_struct privcmd_vm_ops;
-static long privcmd_ioctl_mmap_batch(void __user *udata, int version)
+static long privcmd_ioctl_mmap_batch(void __user *udata, int version,
+ domid_t restrict_domid)
{
int ret;
struct privcmd_mmapbatch_v2 m;
@@ -397,6 +555,10 @@ static long privcmd_ioctl_mmap_batch(void __user *udata,
int version)
return -EINVAL;
}
+ if (restrict_domid != UNRESTRICTED_DOMID &&
+ restrict_domid != m.dom)
+ return -EACCES;
+
nr_pages = m.num;
if ((m.num <= 0) || (nr_pages > (LONG_MAX >> PAGE_SHIFT)))
return -EINVAL;
@@ -498,27 +660,53 @@ out_unlock:
goto out;
}
+static inline domid_t privcmd_get_restrict_domid(const struct file *file)
+{
+ return (domid_t) (long) file->private_data;
+}
+
+static inline void privcmd_set_restrict_domid(struct file *file,
+ domid_t domid)
+{
+ file->private_data = (void *) (long) domid;
+}
+
static long privcmd_ioctl(struct file *file,
unsigned int cmd, unsigned long data)
{
int ret = -ENOSYS;
void __user *udata = (void __user *) data;
+ domid_t restrict_domid = privcmd_get_restrict_domid(file);
switch (cmd) {
case IOCTL_PRIVCMD_HYPERCALL:
- ret = privcmd_ioctl_hypercall(udata);
+ ret = privcmd_ioctl_hypercall(udata, restrict_domid);
break;
case IOCTL_PRIVCMD_MMAP:
- ret = privcmd_ioctl_mmap(udata);
+ ret = privcmd_ioctl_mmap(udata, restrict_domid);
break;
case IOCTL_PRIVCMD_MMAPBATCH:
- ret = privcmd_ioctl_mmap_batch(udata, 1);
+ ret = privcmd_ioctl_mmap_batch(udata, 1, restrict_domid);
break;
case IOCTL_PRIVCMD_MMAPBATCH_V2:
- ret = privcmd_ioctl_mmap_batch(udata, 2);
+ ret = privcmd_ioctl_mmap_batch(udata, 2, restrict_domid);
+ break;
+
+ case IOCTL_PRIVCMD_RESTRICT_DOMID: {
+ struct privcmd_restrict_domid prd;
+
+ if (restrict_domid != UNRESTRICTED_DOMID)
+ return -EACCES;
+ if (copy_from_user(&prd, udata, sizeof(prd)))
+ return -EFAULT;
+ if (prd.domid >= DOMID_FIRST_RESERVED)
+ return -EINVAL;
+ privcmd_set_restrict_domid(file, prd.domid);
+ ret = 0;
+ }
break;
default:
@@ -593,10 +781,17 @@ static int privcmd_vma_range_is_mapped(
is_mapped_fn, NULL) != 0;
}
+static int privcmd_open(struct inode *ino, struct file *filp)
+{
+ privcmd_set_restrict_domid(filp, UNRESTRICTED_DOMID);
+ return 0;
+}
+
const struct file_operations xen_privcmd_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = privcmd_ioctl,
.mmap = privcmd_mmap,
+ .open = privcmd_open,
};
EXPORT_SYMBOL_GPL(xen_privcmd_fops);
diff --git a/include/uapi/xen/privcmd.h b/include/uapi/xen/privcmd.h
index a853168..461a999 100644
--- a/include/uapi/xen/privcmd.h
+++ b/include/uapi/xen/privcmd.h
@@ -73,6 +73,10 @@ struct privcmd_mmapbatch_v2 {
int __user *err; /* array of error codes */
};
+struct privcmd_restrict_domid {
+ domid_t domid;
+};
+
/*
* @cmd: IOCTL_PRIVCMD_HYPERCALL
* @arg: &privcmd_hypercall_t
@@ -94,5 +98,7 @@ struct privcmd_mmapbatch_v2 {
_IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch))
#define IOCTL_PRIVCMD_MMAPBATCH_V2 \
_IOC(_IOC_NONE, 'P', 4, sizeof(struct privcmd_mmapbatch_v2))
+#define IOCTL_PRIVCMD_RESTRICT_DOMID \
+ _IOC(_IOC_NONE, 'P', 5, sizeof(struct privcmd_restrict_domid))
#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */
diff --git a/include/xen/interface/domctl.h b/include/xen/interface/domctl.h
new file mode 100644
index 0000000..0668fed
--- /dev/null
+++ b/include/xen/interface/domctl.h
@@ -0,0 +1,1090 @@
+/******************************************************************************
+ * domctl.h
+ *
+ * Domain management operations. For use by node control stack.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright (c) 2002-2003, B Dragovic
+ * Copyright (c) 2002-2006, K Fraser
+ */
+
+#ifndef __XEN_PUBLIC_DOMCTL_H__
+#define __XEN_PUBLIC_DOMCTL_H__
+
+#include "xen.h"
+#include "grant_table.h"
+
+#define XEN_DOMCTL_INTERFACE_VERSION 0x0000000a
+
+#if 1
+/*
+ * NB. xen_domctl.domain is an IN/OUT parameter for this operation.
+ * If it is specified as zero, an id is auto-allocated and returned.
+ */
+/* XEN_DOMCTL_createdomain */
+struct xen_domctl_createdomain {
+ /* IN parameters */
+ uint32_t ssidref;
+ xen_domain_handle_t handle;
+ /* Is this an HVM guest (as opposed to a PVH or PV guest)? */
+#define _XEN_DOMCTL_CDF_hvm_guest 0
+#define XEN_DOMCTL_CDF_hvm_guest (1U<<_XEN_DOMCTL_CDF_hvm_guest)
+ /* Use hardware-assisted paging if available? */
+#define _XEN_DOMCTL_CDF_hap 1
+#define XEN_DOMCTL_CDF_hap (1U<<_XEN_DOMCTL_CDF_hap)
+ /* Should domain memory integrity be verifed by tboot during Sx? */
+#define _XEN_DOMCTL_CDF_s3_integrity 2
+#define XEN_DOMCTL_CDF_s3_integrity (1U<<_XEN_DOMCTL_CDF_s3_integrity)
+ /* Disable out-of-sync shadow page tables? */
+#define _XEN_DOMCTL_CDF_oos_off 3
+#define XEN_DOMCTL_CDF_oos_off (1U<<_XEN_DOMCTL_CDF_oos_off)
+ /* Is this a PVH guest (as opposed to an HVM or PV guest)? */
+#define _XEN_DOMCTL_CDF_pvh_guest 4
+#define XEN_DOMCTL_CDF_pvh_guest (1U<<_XEN_DOMCTL_CDF_pvh_guest)
+ uint32_t flags;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_createdomain);
+
+/* XEN_DOMCTL_getdomaininfo */
+struct xen_domctl_getdomaininfo {
+ /* OUT variables. */
+ domid_t domain; /* Also echoed in domctl.domain */
+ /* Domain is scheduled to die. */
+#define _XEN_DOMINF_dying 0
+#define XEN_DOMINF_dying (1U<<_XEN_DOMINF_dying)
+ /* Domain is an HVM guest (as opposed to a PV guest). */
+#define _XEN_DOMINF_hvm_guest 1
+#define XEN_DOMINF_hvm_guest (1U<<_XEN_DOMINF_hvm_guest)
+ /* The guest OS has shut down. */
+#define _XEN_DOMINF_shutdown 2
+#define XEN_DOMINF_shutdown (1U<<_XEN_DOMINF_shutdown)
+ /* Currently paused by control software. */
+#define _XEN_DOMINF_paused 3
+#define XEN_DOMINF_paused (1U<<_XEN_DOMINF_paused)
+ /* Currently blocked pending an event. */
+#define _XEN_DOMINF_blocked 4
+#define XEN_DOMINF_blocked (1U<<_XEN_DOMINF_blocked)
+ /* Domain is currently running. */
+#define _XEN_DOMINF_running 5
+#define XEN_DOMINF_running (1U<<_XEN_DOMINF_running)
+ /* Being debugged. */
+#define _XEN_DOMINF_debugged 6
+#define XEN_DOMINF_debugged (1U<<_XEN_DOMINF_debugged)
+/* domain is PVH */
+#define _XEN_DOMINF_pvh_guest 7
+#define XEN_DOMINF_pvh_guest (1U<<_XEN_DOMINF_pvh_guest)
+ /* XEN_DOMINF_shutdown guest-supplied code. */
+#define XEN_DOMINF_shutdownmask 255
+#define XEN_DOMINF_shutdownshift 16
+ uint32_t flags; /* XEN_DOMINF_* */
+ aligned_u64 tot_pages;
+ aligned_u64 max_pages;
+ aligned_u64 outstanding_pages;
+ aligned_u64 shr_pages;
+ aligned_u64 paged_pages;
+ aligned_u64 shared_info_frame; /* GMFN of shared_info struct */
+ aligned_u64 cpu_time;
+ uint32_t nr_online_vcpus; /* Number of VCPUs currently online. */
+ uint32_t max_vcpu_id; /* Maximum VCPUID in use by this domain. */
+ uint32_t ssidref;
+ xen_domain_handle_t handle;
+ uint32_t cpupool;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_getdomaininfo);
+
+
+/* XEN_DOMCTL_getmemlist */
+struct xen_domctl_getmemlist {
+ /* IN variables. */
+ /* Max entries to write to output buffer. */
+ aligned_u64 max_pfns;
+ /* Start index in guest's page list. */
+ aligned_u64 start_pfn;
+ GUEST_HANDLE(uint64_t) buffer;
+ /* OUT variables. */
+ aligned_u64 num_pfns;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_getmemlist);
+
+
+/* XEN_DOMCTL_getpageframeinfo */
+
+#define XEN_DOMCTL_PFINFO_LTAB_SHIFT 28
+#define XEN_DOMCTL_PFINFO_NOTAB (0x0U<<28)
+#define XEN_DOMCTL_PFINFO_L1TAB (0x1U<<28)
+#define XEN_DOMCTL_PFINFO_L2TAB (0x2U<<28)
+#define XEN_DOMCTL_PFINFO_L3TAB (0x3U<<28)
+#define XEN_DOMCTL_PFINFO_L4TAB (0x4U<<28)
+#define XEN_DOMCTL_PFINFO_LTABTYPE_MASK (0x7U<<28)
+#define XEN_DOMCTL_PFINFO_LPINTAB (0x1U<<31)
+#define XEN_DOMCTL_PFINFO_XTAB (0xfU<<28) /* invalid page */
+#define XEN_DOMCTL_PFINFO_XALLOC (0xeU<<28) /* allocate-only page */
+#define XEN_DOMCTL_PFINFO_BROKEN (0xdU<<28) /* broken page */
+#define XEN_DOMCTL_PFINFO_LTAB_MASK (0xfU<<28)
+
+struct xen_domctl_getpageframeinfo {
+ /* IN variables. */
+ aligned_u64 gmfn; /* GMFN to query */
+ /* OUT variables. */
+ /* Is the page PINNED to a type? */
+ uint32_t type; /* see above type defs */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_getpageframeinfo);
+
+
+/* XEN_DOMCTL_getpageframeinfo2 */
+struct xen_domctl_getpageframeinfo2 {
+ /* IN variables. */
+ aligned_u64 num;
+ /* IN/OUT variables. */
+ GUEST_HANDLE(uint32_t) array;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_getpageframeinfo2);
+
+/* XEN_DOMCTL_getpageframeinfo3 */
+struct xen_domctl_getpageframeinfo3 {
+ /* IN variables. */
+ aligned_u64 num;
+ /* IN/OUT variables. */
+ GUEST_HANDLE(xen_pfn_t) array;
+};
+
+
+/*
+ * Control shadow pagetables operation
+ */
+/* XEN_DOMCTL_shadow_op */
+
+/* Disable shadow mode. */
+#define XEN_DOMCTL_SHADOW_OP_OFF 0
+
+/* Enable shadow mode (mode contains ORed XEN_DOMCTL_SHADOW_ENABLE_* flags). */
+#define XEN_DOMCTL_SHADOW_OP_ENABLE 32
+
+/* Log-dirty bitmap operations. */
+ /* Return the bitmap and clean internal copy for next round. */
+#define XEN_DOMCTL_SHADOW_OP_CLEAN 11
+ /* Return the bitmap but do not modify internal copy. */
+#define XEN_DOMCTL_SHADOW_OP_PEEK 12
+
+/* Memory allocation accessors. */
+#define XEN_DOMCTL_SHADOW_OP_GET_ALLOCATION 30
+#define XEN_DOMCTL_SHADOW_OP_SET_ALLOCATION 31
+
+/* Legacy enable operations. */
+ /* Equiv. to ENABLE with no mode flags. */
+#define XEN_DOMCTL_SHADOW_OP_ENABLE_TEST 1
+ /* Equiv. to ENABLE with mode flag ENABLE_LOG_DIRTY. */
+#define XEN_DOMCTL_SHADOW_OP_ENABLE_LOGDIRTY 2
+ /* Equiv. to ENABLE with mode flags ENABLE_REFCOUNT and ENABLE_TRANSLATE. */
+#define XEN_DOMCTL_SHADOW_OP_ENABLE_TRANSLATE 3
+
+/* Mode flags for XEN_DOMCTL_SHADOW_OP_ENABLE. */
+ /*
+ * Shadow pagetables are refcounted: guest does not use explicit mmu
+ * operations nor write-protect its pagetables.
+ */
+#define XEN_DOMCTL_SHADOW_ENABLE_REFCOUNT (1 << 1)
+ /*
+ * Log pages in a bitmap as they are dirtied.
+ * Used for live relocation to determine which pages must be re-sent.
+ */
+#define XEN_DOMCTL_SHADOW_ENABLE_LOG_DIRTY (1 << 2)
+ /*
+ * Automatically translate GPFNs into MFNs.
+ */
+#define XEN_DOMCTL_SHADOW_ENABLE_TRANSLATE (1 << 3)
+ /*
+ * Xen does not steal virtual address space from the guest.
+ * Requires HVM support.
+ */
+#define XEN_DOMCTL_SHADOW_ENABLE_EXTERNAL (1 << 4)
+
+struct xen_domctl_shadow_op_stats {
+ uint32_t fault_count;
+ uint32_t dirty_count;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_shadow_op_stats);
+
+struct xen_domctl_shadow_op {
+ /* IN variables. */
+ uint32_t op; /* XEN_DOMCTL_SHADOW_OP_* */
+
+ /* OP_ENABLE */
+ uint32_t mode; /* XEN_DOMCTL_SHADOW_ENABLE_* */
+
+ /* OP_GET_ALLOCATION / OP_SET_ALLOCATION */
+ uint32_t mb; /* Shadow memory allocation in MB */
+
+ /* OP_PEEK / OP_CLEAN */
+ GUEST_HANDLE(uchar) dirty_bitmap;
+ aligned_u64 pages; /* Size of buffer. Updated with actual size. */
+ struct xen_domctl_shadow_op_stats stats;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_shadow_op);
+
+
+/* XEN_DOMCTL_max_mem */
+struct xen_domctl_max_mem {
+ /* IN variables. */
+ aligned_u64 max_memkb;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_max_mem);
+
+
+/* XEN_DOMCTL_setvcpucontext */
+/* XEN_DOMCTL_getvcpucontext */
+struct xen_domctl_vcpucontext {
+ uint32_t vcpu; /* IN */
+ GUEST_HANDLE(vcpu_guest_context) ctxt; /* IN/OUT */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_vcpucontext);
+
+
+/* XEN_DOMCTL_getvcpuinfo */
+struct xen_domctl_getvcpuinfo {
+ /* IN variables. */
+ uint32_t vcpu;
+ /* OUT variables. */
+ uint8_t online; /* currently online (not hotplugged)? */
+ uint8_t blocked; /* blocked waiting for an event? */
+ uint8_t running; /* currently scheduled on its CPU? */
+ aligned_u64 cpu_time; /* total cpu time consumed (ns) */
+ uint32_t cpu; /* current mapping */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_getvcpuinfo);
+
+#if 0
+/* Get/set the NUMA node(s) with which the guest has affinity with. */
+/* XEN_DOMCTL_setnodeaffinity */
+/* XEN_DOMCTL_getnodeaffinity */
+struct xen_domctl_nodeaffinity {
+ struct xenctl_bitmap nodemap;/* IN */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_nodeaffinity);
+
+
+/* Get/set which physical cpus a vcpu can execute on. */
+/* XEN_DOMCTL_setvcpuaffinity */
+/* XEN_DOMCTL_getvcpuaffinity */
+struct xen_domctl_vcpuaffinity {
+ uint32_t vcpu; /* IN */
+ struct xenctl_bitmap cpumap; /* IN/OUT */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_vcpuaffinity);
+#endif
+
+
+/* XEN_DOMCTL_max_vcpus */
+struct xen_domctl_max_vcpus {
+ uint32_t max; /* maximum number of vcpus */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_max_vcpus);
+
+
+/* XEN_DOMCTL_scheduler_op */
+/* Scheduler types. */
+#define XEN_SCHEDULER_SEDF 4
+#define XEN_SCHEDULER_CREDIT 5
+#define XEN_SCHEDULER_CREDIT2 6
+#define XEN_SCHEDULER_ARINC653 7
+/* Set or get info? */
+#define XEN_DOMCTL_SCHEDOP_putinfo 0
+#define XEN_DOMCTL_SCHEDOP_getinfo 1
+struct xen_domctl_scheduler_op {
+ uint32_t sched_id; /* XEN_SCHEDULER_* */
+ uint32_t cmd; /* XEN_DOMCTL_SCHEDOP_* */
+ union {
+ struct xen_domctl_sched_sedf {
+ aligned_u64 period;
+ aligned_u64 slice;
+ aligned_u64 latency;
+ uint32_t extratime;
+ uint32_t weight;
+ } sedf;
+ struct xen_domctl_sched_credit {
+ uint16_t weight;
+ uint16_t cap;
+ } credit;
+ struct xen_domctl_sched_credit2 {
+ uint16_t weight;
+ } credit2;
+ } u;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_scheduler_op);
+
+
+/* XEN_DOMCTL_setdomainhandle */
+struct xen_domctl_setdomainhandle {
+ xen_domain_handle_t handle;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_setdomainhandle);
+
+
+/* XEN_DOMCTL_setdebugging */
+struct xen_domctl_setdebugging {
+ uint8_t enable;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_setdebugging);
+
+
+/* XEN_DOMCTL_irq_permission */
+struct xen_domctl_irq_permission {
+ uint8_t pirq;
+ uint8_t allow_access; /* flag to specify enable/disable of IRQ access */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_irq_permission);
+
+
+/* XEN_DOMCTL_iomem_permission */
+struct xen_domctl_iomem_permission {
+ aligned_u64 first_mfn;/* first page (physical page number) in range */
+ aligned_u64 nr_mfns; /* number of pages in range (>0) */
+ uint8_t allow_access; /* allow (!0) or deny (0) access to range? */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_iomem_permission);
+
+
+/* XEN_DOMCTL_ioport_permission */
+struct xen_domctl_ioport_permission {
+ uint32_t first_port; /* first port int range */
+ uint32_t nr_ports; /* size of port range */
+ uint8_t allow_access; /* allow or deny access to range? */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_ioport_permission);
+
+
+/* XEN_DOMCTL_hypercall_init */
+struct xen_domctl_hypercall_init {
+ aligned_u64 gmfn; /* GMFN to be initialised */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_hypercall_init);
+
+
+/* XEN_DOMCTL_arch_setup */
+#define _XEN_DOMAINSETUP_hvm_guest 0
+#define XEN_DOMAINSETUP_hvm_guest (1UL<<_XEN_DOMAINSETUP_hvm_guest)
+#define _XEN_DOMAINSETUP_query 1 /* Get parameters (for save) */
+#define XEN_DOMAINSETUP_query (1UL<<_XEN_DOMAINSETUP_query)
+#define _XEN_DOMAINSETUP_sioemu_guest 2
+#define XEN_DOMAINSETUP_sioemu_guest (1UL<<_XEN_DOMAINSETUP_sioemu_guest)
+struct xen_domctl_arch_setup {
+ aligned_u64 flags; /* XEN_DOMAINSETUP_* */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_arch_setup);
+
+
+/* XEN_DOMCTL_settimeoffset */
+struct xen_domctl_settimeoffset {
+ int32_t time_offset_seconds; /* applied to domain wallclock time */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_settimeoffset);
+
+/* XEN_DOMCTL_gethvmcontext */
+/* XEN_DOMCTL_sethvmcontext */
+struct xen_domctl_hvmcontext {
+ uint32_t size; /* IN/OUT: size of buffer / bytes filled */
+ GUEST_HANDLE(uchar) buffer; /* IN/OUT: data, or call
+ * gethvmcontext with NULL
+ * buffer to get size req'd */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_hvmcontext);
+
+
+/* XEN_DOMCTL_set_address_size */
+/* XEN_DOMCTL_get_address_size */
+struct xen_domctl_address_size {
+ uint32_t size;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_address_size);
+
+
+/* XEN_DOMCTL_real_mode_area */
+struct xen_domctl_real_mode_area {
+ uint32_t log; /* log2 of Real Mode Area size */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_real_mode_area);
+
+
+/* XEN_DOMCTL_sendtrigger */
+#define XEN_DOMCTL_SENDTRIGGER_NMI 0
+#define XEN_DOMCTL_SENDTRIGGER_RESET 1
+#define XEN_DOMCTL_SENDTRIGGER_INIT 2
+#define XEN_DOMCTL_SENDTRIGGER_POWER 3
+#define XEN_DOMCTL_SENDTRIGGER_SLEEP 4
+struct xen_domctl_sendtrigger {
+ uint32_t trigger; /* IN */
+ uint32_t vcpu; /* IN */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_sendtrigger);
+
+
+/* Assign PCI device to HVM guest. Sets up IOMMU structures. */
+/* XEN_DOMCTL_assign_device */
+/* XEN_DOMCTL_test_assign_device */
+/* XEN_DOMCTL_deassign_device */
+struct xen_domctl_assign_device {
+ uint32_t machine_sbdf; /* machine PCI ID of assigned device */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_assign_device);
+
+/* Retrieve sibling devices infomation of machine_sbdf */
+/* XEN_DOMCTL_get_device_group */
+struct xen_domctl_get_device_group {
+ uint32_t machine_sbdf; /* IN */
+ uint32_t max_sdevs; /* IN */
+ uint32_t num_sdevs; /* OUT */
+ GUEST_HANDLE(uint32_t) sdev_array; /* OUT */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_get_device_group);
+
+/* Pass-through interrupts: bind real irq -> hvm devfn. */
+/* XEN_DOMCTL_bind_pt_irq */
+/* XEN_DOMCTL_unbind_pt_irq */
+enum pt_irq_type_e {
+ PT_IRQ_TYPE_PCI,
+ PT_IRQ_TYPE_ISA,
+ PT_IRQ_TYPE_MSI,
+ PT_IRQ_TYPE_MSI_TRANSLATE,
+};
+struct xen_domctl_bind_pt_irq {
+ uint32_t machine_irq;
+ enum pt_irq_type_e irq_type;
+ uint32_t hvm_domid;
+
+ union {
+ struct {
+ uint8_t isa_irq;
+ } isa;
+ struct {
+ uint8_t bus;
+ uint8_t device;
+ uint8_t intx;
+ } pci;
+ struct {
+ uint8_t gvec;
+ uint32_t gflags;
+ aligned_u64 gtable;
+ } msi;
+ } u;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_bind_pt_irq);
+
+
+/* Bind machine I/O address range -> HVM address range. */
+/* XEN_DOMCTL_memory_mapping */
+#define DPCI_ADD_MAPPING 1
+#define DPCI_REMOVE_MAPPING 0
+struct xen_domctl_memory_mapping {
+ aligned_u64 first_gfn; /* first page (hvm guest phys page) in range */
+ aligned_u64 first_mfn; /* first page (machine page) in range */
+ aligned_u64 nr_mfns; /* number of pages in range (>0) */
+ uint32_t add_mapping; /* add or remove mapping */
+ uint32_t padding; /* padding for 64-bit aligned structure */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_memory_mapping);
+
+
+/* Bind machine I/O port range -> HVM I/O port range. */
+/* XEN_DOMCTL_ioport_mapping */
+struct xen_domctl_ioport_mapping {
+ uint32_t first_gport; /* first guest IO port*/
+ uint32_t first_mport; /* first machine IO port */
+ uint32_t nr_ports; /* size of port range */
+ uint32_t add_mapping; /* add or remove mapping */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_ioport_mapping);
+
+
+/*
+ * Pin caching type of RAM space for x86 HVM domU.
+ */
+/* XEN_DOMCTL_pin_mem_cacheattr */
+/* Caching types: these happen to be the same as x86 MTRR/PAT type codes. */
+#define XEN_DOMCTL_MEM_CACHEATTR_UC 0
+#define XEN_DOMCTL_MEM_CACHEATTR_WC 1
+#define XEN_DOMCTL_MEM_CACHEATTR_WT 4
+#define XEN_DOMCTL_MEM_CACHEATTR_WP 5
+#define XEN_DOMCTL_MEM_CACHEATTR_WB 6
+#define XEN_DOMCTL_MEM_CACHEATTR_UCM 7
+struct xen_domctl_pin_mem_cacheattr {
+ aligned_u64 start, end;
+ uint32_t type; /* XEN_DOMCTL_MEM_CACHEATTR_* */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_pin_mem_cacheattr);
+
+
+#if 0
+/* XEN_DOMCTL_set_ext_vcpucontext */
+/* XEN_DOMCTL_get_ext_vcpucontext */
+struct xen_domctl_ext_vcpucontext {
+ /* IN: VCPU that this call applies to. */
+ uint32_t vcpu;
+ /*
+ * SET: Size of struct (IN)
+ * GET: Size of struct (OUT, up to 128 bytes)
+ */
+ uint32_t size;
+#if defined(__i386__) || defined(__x86_64__)
+ /* SYSCALL from 32-bit mode and SYSENTER callback information. */
+ /* NB. SYSCALL from 64-bit mode is contained in vcpu_guest_context_t */
+ aligned_u64 syscall32_callback_eip;
+ aligned_u64 sysenter_callback_eip;
+ uint16_t syscall32_callback_cs;
+ uint16_t sysenter_callback_cs;
+ uint8_t syscall32_disables_events;
+ uint8_t sysenter_disables_events;
+#if defined(__GNUC__)
+ union {
+ aligned_u64 mcg_cap;
+ struct hvm_vmce_vcpu vmce;
+ };
+#else
+ struct hvm_vmce_vcpu vmce;
+#endif
+#endif
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_ext_vcpucontext);
+#endif
+
+/*
+ * Set the target domain for a domain
+ */
+/* XEN_DOMCTL_set_target */
+struct xen_domctl_set_target {
+ domid_t target;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_set_target);
+
+#if defined(__i386__) || defined(__x86_64__)
+# define XEN_CPUID_INPUT_UNUSED 0xFFFFFFFF
+/* XEN_DOMCTL_set_cpuid */
+struct xen_domctl_cpuid {
+ uint32_t input[2];
+ uint32_t eax;
+ uint32_t ebx;
+ uint32_t ecx;
+ uint32_t edx;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_cpuid);
+#endif
+
+/*
+ * Arranges that if the domain suspends (specifically, if it shuts
+ * down with code SHUTDOWN_suspend), this event channel will be
+ * notified.
+ *
+ * This is _instead of_ the usual notification to the global
+ * VIRQ_DOM_EXC. (In most systems that pirq is owned by xenstored.)
+ *
+ * Only one subscription per domain is possible. Last subscriber
+ * wins; others are silently displaced.
+ *
+ * NB that contrary to the rather general name, it only applies to
+ * domain shutdown with code suspend. Shutdown for other reasons
+ * (including crash), and domain death, are notified to VIRQ_DOM_EXC
+ * regardless.
+ */
+/* XEN_DOMCTL_subscribe */
+struct xen_domctl_subscribe {
+ uint32_t port; /* IN */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_subscribe);
+
+/*
+ * Define the maximum machine address size which should be allocated
+ * to a guest.
+ */
+/* XEN_DOMCTL_set_machine_address_size */
+/* XEN_DOMCTL_get_machine_address_size */
+
+/*
+ * Do not inject spurious page faults into this domain.
+ */
+/* XEN_DOMCTL_suppress_spurious_page_faults */
+
+/* XEN_DOMCTL_debug_op */
+#define XEN_DOMCTL_DEBUG_OP_SINGLE_STEP_OFF 0
+#define XEN_DOMCTL_DEBUG_OP_SINGLE_STEP_ON 1
+struct xen_domctl_debug_op {
+ uint32_t op; /* IN */
+ uint32_t vcpu; /* IN */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_debug_op);
+
+/*
+ * Request a particular record from the HVM context
+ */
+/* XEN_DOMCTL_gethvmcontext_partial */
+struct xen_domctl_hvmcontext_partial {
+ uint32_t type; /* IN: Type of record required */
+ uint32_t instance; /* IN: Instance of that type */
+ GUEST_HANDLE(uchar) buffer; /* OUT: buffer to write record into */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_hvmcontext_partial);
+
+/* XEN_DOMCTL_disable_migrate */
+struct xen_domctl_disable_migrate {
+ uint32_t disable; /* IN: 1: disable migration and restore */
+};
+
+
+/* XEN_DOMCTL_gettscinfo */
+/* XEN_DOMCTL_settscinfo */
+struct xen_guest_tsc_info {
+ uint32_t tsc_mode;
+ uint32_t gtsc_khz;
+ uint32_t incarnation;
+ uint32_t pad;
+ aligned_u64 elapsed_nsec;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_guest_tsc_info);
+
+struct xen_domctl_tsc_info {
+ GUEST_HANDLE(xen_guest_tsc_info) out_info; /* OUT */
+ struct xen_guest_tsc_info info; /* IN */
+};
+
+/* XEN_DOMCTL_gdbsx_guestmemio guest mem io */
+struct xen_domctl_gdbsx_memio {
+ /* IN */
+ aligned_u64 pgd3val;/* optional: init_mm.pgd[3] value */
+ aligned_u64 gva; /* guest virtual address */
+ aligned_u64 uva; /* user buffer virtual address */
+ uint32_t len; /* number of bytes to read/write */
+ uint8_t gwr; /* 0 = read from guest. 1 = write to guest */
+ /* OUT */
+ uint32_t remain; /* bytes remaining to be copied */
+};
+
+/* XEN_DOMCTL_gdbsx_pausevcpu */
+/* XEN_DOMCTL_gdbsx_unpausevcpu */
+struct xen_domctl_gdbsx_pauseunp_vcpu { /* pause/unpause a vcpu */
+ uint32_t vcpu; /* which vcpu */
+};
+
+/* XEN_DOMCTL_gdbsx_domstatus */
+struct xen_domctl_gdbsx_domstatus {
+ /* OUT */
+ uint8_t paused; /* is the domain paused */
+ uint32_t vcpu_id; /* any vcpu in an event? */
+ uint32_t vcpu_ev; /* if yes, what event? */
+};
+
+/*
+ * Memory event operations
+ */
+
+/* XEN_DOMCTL_mem_event_op */
+
+/*
+ * Domain memory paging
+ * Page memory in and out.
+ * Domctl interface to set up and tear down the
+ * pager<->hypervisor interface. Use XENMEM_paging_op*
+ * to perform per-page operations.
+ *
+ * The XEN_DOMCTL_MEM_EVENT_OP_PAGING_ENABLE domctl returns several
+ * non-standard error codes to indicate why paging could not be enabled:
+ * ENODEV - host lacks HAP support (EPT/NPT) or HAP is disabled in guest
+ * EMLINK - guest has iommu passthrough enabled
+ * EXDEV - guest has PoD enabled
+ * EBUSY - guest has or had paging enabled, ring buffer still active
+ */
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING 1
+
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_ENABLE 0
+#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_DISABLE 1
+
+/*
+ * Access permissions.
+ *
+ * As with paging, use the domctl for teardown/setup of the
+ * helper<->hypervisor interface.
+ *
+ * There are HVM hypercalls to set the per-page access permissions of every
+ * page in a domain. When one of these permissions--independent, read,
+ * write, and execute--is violated, the VCPU is paused and a memory event
+ * is sent with what happened. (See public/mem_event.h) .
+ *
+ * The memory event handler can then resume the VCPU and redo the access
+ * with a XENMEM_access_op_resume hypercall.
+ *
+ * The XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE domctl returns several
+ * non-standard error codes to indicate why access could not be enabled:
+ * ENODEV - host lacks HAP support (EPT/NPT) or HAP is disabled in guest
+ * EBUSY - guest has or had access enabled, ring buffer still active
+ */
+#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS 2
+
+#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE 0
+#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS_DISABLE 1
+
+/*
+ * Sharing ENOMEM helper.
+ *
+ * As with paging, use the domctl for teardown/setup of the
+ * helper<->hypervisor interface.
+ *
+ * If setup, this ring is used to communicate failed allocations
+ * in the unshare path. XENMEM_sharing_op_resume is used to wake up
+ * vcpus that could not unshare.
+ *
+ * Note that shring can be turned on (as per the domctl below)
+ * *without* this ring being setup.
+ */
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING 3
+
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_ENABLE 0
+#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_DISABLE 1
+
+/* Use for teardown/setup of helper<->hypervisor interface for paging,
+ * access and sharing.*/
+struct xen_domctl_mem_event_op {
+ uint32_t op; /* XEN_DOMCTL_MEM_EVENT_OP_*_* */
+ uint32_t mode; /* XEN_DOMCTL_MEM_EVENT_OP_* */
+
+ uint32_t port; /* OUT: event channel for ring */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_mem_event_op);
+
+/*
+ * Memory sharing operations
+ */
+/* XEN_DOMCTL_mem_sharing_op.
+ * The CONTROL sub-domctl is used for bringup/teardown. */
+#define XEN_DOMCTL_MEM_SHARING_CONTROL 0
+
+struct xen_domctl_mem_sharing_op {
+ uint8_t op; /* XEN_DOMCTL_MEM_SHARING_* */
+
+ union {
+ uint8_t enable; /* CONTROL */
+ } u;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_mem_sharing_op);
+
+struct xen_domctl_audit_p2m {
+ /* OUT error counts */
+ uint64_t orphans;
+ uint64_t m2p_bad;
+ uint64_t p2m_bad;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_audit_p2m);
+
+struct xen_domctl_set_virq_handler {
+ uint32_t virq; /* IN */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_set_virq_handler);
+
+#if defined(__i386__) || defined(__x86_64__)
+/* XEN_DOMCTL_setvcpuextstate */
+/* XEN_DOMCTL_getvcpuextstate */
+struct xen_domctl_vcpuextstate {
+ /* IN: VCPU that this call applies to. */
+ uint32_t vcpu;
+ /*
+ * SET: Ignored.
+ * GET: xfeature support mask of struct (IN/OUT)
+ * xfeature mask is served as identifications of the saving format
+ * so that compatible CPUs can have a check on format to decide
+ * whether it can restore.
+ */
+ aligned_u64 xfeature_mask;
+ /*
+ * SET: Size of struct (IN)
+ * GET: Size of struct (IN/OUT)
+ */
+ aligned_u64 size;
+ GUEST_HANDLE(uint64_t) buffer;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_vcpuextstate);
+#endif
+
+/* XEN_DOMCTL_set_access_required: sets whether a memory event listener
+ * must be present to handle page access events: if false, the page
+ * access will revert to full permissions if no one is listening;
+ * */
+struct xen_domctl_set_access_required {
+ uint8_t access_required;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_set_access_required);
+
+struct xen_domctl_set_broken_page_p2m {
+ aligned_u64 pfn;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_set_broken_page_p2m);
+
+/*
+ * XEN_DOMCTL_set_max_evtchn: sets the maximum event channel port
+ * number the guest may use. Use this limit the amount of resources
+ * (global mapping space, xenheap) a guest may use for event channels.
+ */
+struct xen_domctl_set_max_evtchn {
+ uint32_t max_port;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_set_max_evtchn);
+
+/*
+ * ARM: Clean and invalidate caches associated with given region of
+ * guest memory.
+ */
+struct xen_domctl_cacheflush {
+ /* IN: page range to flush. */
+ xen_pfn_t start_pfn, nr_pfns;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_cacheflush);
+
+#if defined(__i386__) || defined(__x86_64__)
+struct xen_domctl_vcpu_msr {
+ uint32_t index;
+ uint32_t reserved;
+ aligned_u64 value;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_vcpu_msr);
+
+/*
+ * XEN_DOMCTL_set_vcpu_msrs / XEN_DOMCTL_get_vcpu_msrs.
+ *
+ * Input:
+ * - A NULL 'msrs' guest handle is a request for the maximum 'msr_count'.
+ * - Otherwise, 'msr_count' is the number of entries in 'msrs'.
+ *
+ * Output for get:
+ * - If 'msr_count' is less than the number Xen needs to write, -ENOBUFS shall
+ * be returned and 'msr_count' updated to reflect the intended number.
+ * - On success, 'msr_count' shall indicate the number of MSRs written, which
+ * may be less than the maximum if some are not currently used by the vcpu.
+ *
+ * Output for set:
+ * - If Xen encounters an error with a specific MSR, -EINVAL shall be returned
+ * and 'msr_count' shall be set to the offending index, to aid debugging.
+ */
+struct xen_domctl_vcpu_msrs {
+ uint32_t vcpu; /* IN */
+ uint32_t msr_count; /* IN/OUT */
+ GUEST_HANDLE(xen_domctl_vcpu_msr) msrs; /* IN/OUT */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_vcpu_msrs);
+#endif
+
+/*
+ * Return information about the state and running time of a domain.
+ * The "domain runstate" is based on the runstates of all the vcpus of the
+ * domain (see below).
+ * @extra_arg == pointer to domain_runstate_info structure.
+ */
+struct xen_domctl_runstate_info {
+ /* VCPU's current state (RUNSTATE_*). */
+ uint32_t state;
+ uint32_t missed_changes;
+ /* Number of times we missed an update due to contention */
+ /* When was current state entered (system time, ns)? */
+ uint64_t state_entry_time;
+ /*
+ * Time spent in each RUNSTATE_* (ns). The sum of these times is
+ * NOT guaranteed not to drift from system time.
+ */
+ uint64_t time[6];
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_runstate_info);
+
+/* All vcpus are running */
+#define DOMAIN_RUNSTATE_full_run 0
+
+/* All vcpus are runnable (i.e., waiting for cpu) */
+#define DOMAIN_RUNSTATE_full_contention 1
+
+/* Some vcpus are running, some are runnable */
+#define DOMAIN_RUNSTATE_concurrency_hazard 2
+
+/* All vcpus are blocked / offline */
+#define DOMAIN_RUNSTATE_blocked 3
+
+/* Some vpcus are running, some are blocked */
+#define DOMAIN_RUNSTATE_partial_run 4
+
+/* Some vcpus are runnable, some are blocked */
+#define DOMAIN_RUNSTATE_partial_contention 5
+
+struct xen_domctl_corespersocket {
+ uint32_t cores_per_socket;
+};
+
+DEFINE_GUEST_HANDLE_STRUCT(xen_domctl_corespersocket);
+#endif
+
+struct xen_domctl {
+ uint32_t cmd;
+#define XEN_DOMCTL_createdomain 1
+#define XEN_DOMCTL_destroydomain 2
+#define XEN_DOMCTL_pausedomain 3
+#define XEN_DOMCTL_unpausedomain 4
+#define XEN_DOMCTL_getdomaininfo 5
+#define XEN_DOMCTL_getmemlist 6
+#define XEN_DOMCTL_getpageframeinfo 7
+#define XEN_DOMCTL_getpageframeinfo2 8
+#define XEN_DOMCTL_setvcpuaffinity 9
+#define XEN_DOMCTL_shadow_op 10
+#define XEN_DOMCTL_max_mem 11
+#define XEN_DOMCTL_setvcpucontext 12
+#define XEN_DOMCTL_getvcpucontext 13
+#define XEN_DOMCTL_getvcpuinfo 14
+#define XEN_DOMCTL_max_vcpus 15
+#define XEN_DOMCTL_scheduler_op 16
+#define XEN_DOMCTL_setdomainhandle 17
+#define XEN_DOMCTL_setdebugging 18
+#define XEN_DOMCTL_irq_permission 19
+#define XEN_DOMCTL_iomem_permission 20
+#define XEN_DOMCTL_ioport_permission 21
+#define XEN_DOMCTL_hypercall_init 22
+#define XEN_DOMCTL_arch_setup 23
+#define XEN_DOMCTL_settimeoffset 24
+#define XEN_DOMCTL_getvcpuaffinity 25
+#define XEN_DOMCTL_real_mode_area 26
+#define XEN_DOMCTL_resumedomain 27
+#define XEN_DOMCTL_sendtrigger 28
+#define XEN_DOMCTL_subscribe 29
+#define XEN_DOMCTL_gethvmcontext 33
+#define XEN_DOMCTL_sethvmcontext 34
+#define XEN_DOMCTL_set_address_size 35
+#define XEN_DOMCTL_get_address_size 36
+#define XEN_DOMCTL_assign_device 37
+#define XEN_DOMCTL_bind_pt_irq 38
+#define XEN_DOMCTL_memory_mapping 39
+#define XEN_DOMCTL_ioport_mapping 40
+#define XEN_DOMCTL_pin_mem_cacheattr 41
+#define XEN_DOMCTL_set_ext_vcpucontext 42
+#define XEN_DOMCTL_get_ext_vcpucontext 43
+#define XEN_DOMCTL_set_opt_feature 44 /* Obsolete IA64 only */
+#define XEN_DOMCTL_test_assign_device 45
+#define XEN_DOMCTL_set_target 46
+#define XEN_DOMCTL_deassign_device 47
+#define XEN_DOMCTL_unbind_pt_irq 48
+#define XEN_DOMCTL_set_cpuid 49
+#define XEN_DOMCTL_get_device_group 50
+#define XEN_DOMCTL_set_machine_address_size 51
+#define XEN_DOMCTL_get_machine_address_size 52
+#define XEN_DOMCTL_suppress_spurious_page_faults 53
+#define XEN_DOMCTL_debug_op 54
+#define XEN_DOMCTL_gethvmcontext_partial 55
+#define XEN_DOMCTL_mem_event_op 56
+#define XEN_DOMCTL_mem_sharing_op 57
+#define XEN_DOMCTL_disable_migrate 58
+#define XEN_DOMCTL_gettscinfo 59
+#define XEN_DOMCTL_settscinfo 60
+#define XEN_DOMCTL_getpageframeinfo3 61
+#define XEN_DOMCTL_setvcpuextstate 62
+#define XEN_DOMCTL_getvcpuextstate 63
+#define XEN_DOMCTL_set_access_required 64
+#define XEN_DOMCTL_audit_p2m 65
+#define XEN_DOMCTL_set_virq_handler 66
+#define XEN_DOMCTL_set_broken_page_p2m 67
+#define XEN_DOMCTL_setnodeaffinity 68
+#define XEN_DOMCTL_getnodeaffinity 69
+#define XEN_DOMCTL_set_max_evtchn 70
+#define XEN_DOMCTL_cacheflush 71
+#define XEN_DOMCTL_get_vcpu_msrs 72
+#define XEN_DOMCTL_set_vcpu_msrs 73
+#define XEN_DOMCTL_get_runstate_info 98
+#define XEN_DOMCTL_gdbsx_guestmemio 1000
+#define XEN_DOMCTL_gdbsx_pausevcpu 1001
+#define XEN_DOMCTL_gdbsx_unpausevcpu 1002
+#define XEN_DOMCTL_gdbsx_domstatus 1003
+#define XEN_DOMCTL_setcorespersocket 4001
+ uint32_t interface_version; /* XEN_DOMCTL_INTERFACE_VERSION */
+ domid_t domain;
+ union {
+ struct xen_domctl_createdomain createdomain;
+ struct xen_domctl_getdomaininfo getdomaininfo;
+ struct xen_domctl_getmemlist getmemlist;
+ struct xen_domctl_getpageframeinfo getpageframeinfo;
+ struct xen_domctl_getpageframeinfo2 getpageframeinfo2;
+ struct xen_domctl_getpageframeinfo3 getpageframeinfo3;
+#if 0
+ struct xen_domctl_nodeaffinity nodeaffinity;
+ struct xen_domctl_vcpuaffinity vcpuaffinity;
+#endif
+ struct xen_domctl_shadow_op shadow_op;
+ struct xen_domctl_max_mem max_mem;
+ struct xen_domctl_vcpucontext vcpucontext;
+ struct xen_domctl_getvcpuinfo getvcpuinfo;
+ struct xen_domctl_max_vcpus max_vcpus;
+ struct xen_domctl_scheduler_op scheduler_op;
+ struct xen_domctl_setdomainhandle setdomainhandle;
+ struct xen_domctl_setdebugging setdebugging;
+ struct xen_domctl_irq_permission irq_permission;
+ struct xen_domctl_iomem_permission iomem_permission;
+ struct xen_domctl_ioport_permission ioport_permission;
+ struct xen_domctl_hypercall_init hypercall_init;
+ struct xen_domctl_arch_setup arch_setup;
+ struct xen_domctl_settimeoffset settimeoffset;
+ struct xen_domctl_disable_migrate disable_migrate;
+ struct xen_domctl_tsc_info tsc_info;
+ struct xen_domctl_real_mode_area real_mode_area;
+ struct xen_domctl_hvmcontext hvmcontext;
+ struct xen_domctl_hvmcontext_partial hvmcontext_partial;
+ struct xen_domctl_address_size address_size;
+ struct xen_domctl_sendtrigger sendtrigger;
+ struct xen_domctl_get_device_group get_device_group;
+ struct xen_domctl_assign_device assign_device;
+ struct xen_domctl_bind_pt_irq bind_pt_irq;
+ struct xen_domctl_memory_mapping memory_mapping;
+ struct xen_domctl_ioport_mapping ioport_mapping;
+ struct xen_domctl_pin_mem_cacheattr pin_mem_cacheattr;
+#if 0
+ struct xen_domctl_ext_vcpucontext ext_vcpucontext;
+#endif
+ struct xen_domctl_set_target set_target;
+ struct xen_domctl_subscribe subscribe;
+ struct xen_domctl_debug_op debug_op;
+ struct xen_domctl_mem_event_op mem_event_op;
+ struct xen_domctl_mem_sharing_op mem_sharing_op;
+#if defined(__i386__) || defined(__x86_64__)
+ struct xen_domctl_cpuid cpuid;
+ struct xen_domctl_vcpuextstate vcpuextstate;
+ struct xen_domctl_vcpu_msrs vcpu_msrs;
+#endif
+ struct xen_domctl_set_access_required access_required;
+ struct xen_domctl_audit_p2m audit_p2m;
+ struct xen_domctl_set_virq_handler set_virq_handler;
+ struct xen_domctl_set_max_evtchn set_max_evtchn;
+ struct xen_domctl_runstate_info domain_runstate;
+ struct xen_domctl_corespersocket corespersocket;
+ struct xen_domctl_gdbsx_memio gdbsx_guest_memio;
+ struct xen_domctl_set_broken_page_p2m set_broken_page_p2m;
+ struct xen_domctl_cacheflush cacheflush;
+ struct xen_domctl_gdbsx_pauseunp_vcpu gdbsx_pauseunp_vcpu;
+ struct xen_domctl_gdbsx_domstatus gdbsx_domstatus;
+ uint8_t pad[128];
+ } u __aligned(8);
+};
+
+#endif /* __XEN_PUBLIC_DOMCTL_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/include/xen/interface/hvm/hvm_op.h
b/include/xen/interface/hvm/hvm_op.h
index 956a046..5fb5260 100644
--- a/include/xen/interface/hvm/hvm_op.h
+++ b/include/xen/interface/hvm/hvm_op.h
@@ -32,6 +32,72 @@ struct xen_hvm_param {
};
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);
+#define HVMOP_set_pci_intx_level 2
+struct xen_hvm_set_pci_intx_level {
+ /* Domain to be updated. */
+ domid_t domid;
+ /* PCI INTx identification in PCI topology (domain:bus:device:intx). */
+ uint8_t domain, bus, device, intx;
+ /* Assertion level (0 = unasserted, 1 = asserted). */
+ uint8_t level;
+};
+
+#define HVMOP_set_isa_irq_level 3
+struct xen_hvm_set_isa_irq_level {
+ /* Domain to be updated. */
+ domid_t domid;
+ /* ISA device identification, by ISA IRQ (0-15). */
+ uint8_t isa_irq;
+ /* Assertion level (0 = unasserted, 1 = asserted). */
+ uint8_t level;
+};
+
+#define HVMOP_set_pci_link_route 4
+struct xen_hvm_set_pci_link_route {
+ /* Domain to be updated. */
+ domid_t domid;
+ /* PCI link identifier (0-3). */
+ uint8_t link;
+ /* ISA IRQ (1-15), or 0 (disable link). */
+ uint8_t isa_irq;
+};
+
+#define HVMOP_track_dirty_vram 6
+struct xen_hvm_track_dirty_vram {
+ /* Domain to be tracked. */
+ domid_t domid;
+ /* First pfn to track. */
+ aligned_u64 first_pfn;
+ /* Number of pages to track. */
+ aligned_u64 nr;
+ /* OUT variable. */
+ /* Dirty bitmap buffer. */
+ aligned_u64 dirty_bitmap;
+};
+
+#define HVMOP_modified_memory 7
+struct xen_hvm_modified_memory {
+ /* Domain to be updated. */
+ domid_t domid;
+ /* First pfn. */
+ aligned_u64 first_pfn;
+ /* Number of pages. */
+ aligned_u64 nr;
+};
+
+#define HVMOP_set_mem_type 8
+/* Notify that a region of memory is to be treated in a specific way. */
+struct xen_hvm_set_mem_type {
+ /* Domain to be updated. */
+ domid_t domid;
+ /* Memory type */
+ uint16_t hvmmem_type;
+ /* Number of pages. */
+ uint32_t nr;
+ /* First pfn. */
+ aligned_u64 first_pfn;
+};
+
/* Hint from PV drivers for pagetable destruction. */
#define HVMOP_pagetable_dying 9
struct xen_hvm_pagetable_dying {
diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h
index 2ecfe4f..a5fd2e6 100644
--- a/include/xen/interface/memory.h
+++ b/include/xen/interface/memory.h
@@ -248,6 +248,14 @@ DEFINE_GUEST_HANDLE_STRUCT(xen_memory_map);
*/
extern spinlock_t xen_reservation_lock;
+#define XENMEM_set_memory_map 13
+struct xen_foreign_memory_map {
+ domid_t domid;
+ struct xen_memory_map map;
+};
+
+#define XENMEM_maximum_gpfn 14
+
/*
* Unmaps the page appearing at a particular GPFN from the specified guest's
* pseudophysical address space.
diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
index de08213..075cb6f 100644
--- a/include/xen/interface/xen.h
+++ b/include/xen/interface/xen.h
@@ -57,6 +57,7 @@
#define __HYPERVISOR_event_channel_op 32
#define __HYPERVISOR_physdev_op 33
#define __HYPERVISOR_hvm_op 34
+#define __HYPERVISOR_domctl 36
#define __HYPERVISOR_tmem_op 38
/* Architecture-specific hypercall definitions. */
--
1.9.1
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