diff --git a/Documentation/devicetree/bindings/arm/xen.txt b/Documentation/devicetree/bindings/arm/xen.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0f7b9c2109f855d69b8d950675a1e8e17b836735
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/xen.txt
@@ -0,0 +1,25 @@
+* Xen hypervisor device tree bindings
+
+Xen ARM virtual platforms shall have a top-level "hypervisor" node with
+the following properties:
+
+- compatible:
+ compatible = "xen,xen-<version>", "xen,xen";
+ where <version> is the version of the Xen ABI of the platform.
+
+- reg: specifies the base physical address and size of a region in
+ memory where the grant table should be mapped to, using an
+ HYPERVISOR_memory_op hypercall. The memory region is large enough to map
+ the whole grant table (it is larger or equal to gnttab_max_grant_frames()).
+
+- interrupts: the interrupt used by Xen to inject event notifications.
+ A GIC node is also required.
+
+
+Example (assuming #address-cells = <2> and #size-cells = <2>):
+
+hypervisor {
+ compatible = "xen,xen-4.3", "xen,xen";
+ reg = <0 0xb0000000 0 0x20000>;
+ interrupts = <1 15 0xf08>;
+};
diff --git a/MAINTAINERS b/MAINTAINERS
index 0976bd1381b5088b021e1203d15429af9db45f38..42c2264a154c9b3497cda8f6488f6e1cfcddbc44 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7803,6 +7803,13 @@ F: drivers/xen/
F: arch/x86/include/asm/xen/
F: include/xen/
+XEN HYPERVISOR ARM
+M: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
+L: xen-devel@lists.xensource.com (moderated for non-subscribers)
+S: Supported
+F: arch/arm/xen/
+F: arch/arm/include/asm/xen/
+
XEN NETWORK BACKEND DRIVER
M: Ian Campbell <ian.campbell@citrix.com>
L: xen-devel@lists.xensource.com (moderated for non-subscribers)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7bab17ed29729b84c464be57d6aa9e76a9c7369d..3975d10cb3ed315490d0fbecf65c6e904793574a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1829,6 +1829,16 @@ config DEPRECATED_PARAM_STRUCT
This was deprecated in 2001 and announced to live on for 5 years.
Some old boot loaders still use this way.
+config XEN_DOM0
+ def_bool y
+ depends on XEN
+
+config XEN
+ bool "Xen guest support on ARM (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && ARM && OF
+ help
+ Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
+
endmenu
menu "Boot options"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index b86e57ef146b0de3af0b41b0e21a8b5834dd0a65..40ea991b67824e73b3409191e0f8767ad594f83e 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -250,6 +250,7 @@ endif
core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
core-$(CONFIG_VFP) += arch/arm/vfp/
+core-$(CONFIG_XEN) += arch/arm/xen/
# If we have a machine-specific directory, then include it in the build.
core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 43c084c2cd6682074e45c57090c0d3ee4a2e38d0..4745c1f68b4983468e2e23b724deffe0085afacb 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -96,6 +96,7 @@ dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \
dtb-$(CONFIG_ARCH_VEXPRESS) += vexpress-v2p-ca5s.dtb \
vexpress-v2p-ca9.dtb \
vexpress-v2p-ca15-tc1.dtb \
- vexpress-v2p-ca15_a7.dtb
+ vexpress-v2p-ca15_a7.dtb \
+ xenvm-4.2.dtb
endif
diff --git a/arch/arm/boot/dts/xenvm-4.2.dts b/arch/arm/boot/dts/xenvm-4.2.dts
new file mode 100644
index 0000000000000000000000000000000000000000..ec3f9528e180c75e42b633104fb537ced0762691
--- /dev/null
+++ b/arch/arm/boot/dts/xenvm-4.2.dts
@@ -0,0 +1,68 @@
+/*
+ * Xen Virtual Machine for unprivileged guests
+ *
+ * Based on ARM Ltd. Versatile Express CoreTile Express (single CPU)
+ * Cortex-A15 MPCore (V2P-CA15)
+ *
+ */
+
+/dts-v1/;
+
+/ {
+ model = "XENVM-4.2";
+ compatible = "xen,xenvm-4.2", "xen,xenvm";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ chosen {
+ /* this field is going to be adjusted by the hypervisor */
+ bootargs = "console=hvc0 root=/dev/xvda";
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a15";
+ reg = <0>;
+ };
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ /* this field is going to be adjusted by the hypervisor */
+ reg = <0 0x80000000 0 0x08000000>;
+ };
+
+ gic: interrupt-controller@2c001000 {
+ compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0 0x2c001000 0 0x1000>,
+ <0 0x2c002000 0 0x100>;
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <1 13 0xf08>,
+ <1 14 0xf08>,
+ <1 11 0xf08>,
+ <1 10 0xf08>;
+ };
+
+ hypervisor {
+ compatible = "xen,xen-4.2", "xen,xen";
+ /* this field is going to be adjusted by the hypervisor */
+ reg = <0 0xb0000000 0 0x20000>;
+ /* this field is going to be adjusted by the hypervisor */
+ interrupts = <1 15 0xf08>;
+ };
+
+ motherboard {
+ arm,v2m-memory-map = "rs1";
+ };
+};
diff --git a/arch/arm/include/asm/hypervisor.h b/arch/arm/include/asm/hypervisor.h
new file mode 100644
index 0000000000000000000000000000000000000000..b90d9e523d6f218663dcc7a54a48def5c8dae7c4
--- /dev/null
+++ b/arch/arm/include/asm/hypervisor.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARM_HYPERVISOR_H
+#define _ASM_ARM_HYPERVISOR_H
+
+#include <asm/xen/hypervisor.h>
+
+#endif
diff --git a/arch/arm/include/asm/sync_bitops.h b/arch/arm/include/asm/sync_bitops.h
new file mode 100644
index 0000000000000000000000000000000000000000..63479eecbf769e122169e813f8e948e7e5126a90
--- /dev/null
+++ b/arch/arm/include/asm/sync_bitops.h
@@ -0,0 +1,27 @@
+#ifndef __ASM_SYNC_BITOPS_H__
+#define __ASM_SYNC_BITOPS_H__
+
+#include <asm/bitops.h>
+#include <asm/system.h>
+
+/* sync_bitops functions are equivalent to the SMP implementation of the
+ * original functions, independently from CONFIG_SMP being defined.
+ *
+ * We need them because _set_bit etc are not SMP safe if !CONFIG_SMP. But
+ * under Xen you might be communicating with a completely external entity
+ * who might be on another CPU (e.g. two uniprocessor guests communicating
+ * via event channels and grant tables). So we need a variant of the bit
+ * ops which are SMP safe even on a UP kernel.
+ */
+
+#define sync_set_bit(nr, p) _set_bit(nr, p)
+#define sync_clear_bit(nr, p) _clear_bit(nr, p)
+#define sync_change_bit(nr, p) _change_bit(nr, p)
+#define sync_test_and_set_bit(nr, p) _test_and_set_bit(nr, p)
+#define sync_test_and_clear_bit(nr, p) _test_and_clear_bit(nr, p)
+#define sync_test_and_change_bit(nr, p) _test_and_change_bit(nr, p)
+#define sync_test_bit(nr, addr) test_bit(nr, addr)
+#define sync_cmpxchg cmpxchg
+
+
+#endif
diff --git a/arch/arm/include/asm/xen/events.h b/arch/arm/include/asm/xen/events.h
new file mode 100644
index 0000000000000000000000000000000000000000..94b4e9020b0227465953e3332624424cbc520653
--- /dev/null
+++ b/arch/arm/include/asm/xen/events.h
@@ -0,0 +1,18 @@
+#ifndef _ASM_ARM_XEN_EVENTS_H
+#define _ASM_ARM_XEN_EVENTS_H
+
+#include <asm/ptrace.h>
+
+enum ipi_vector {
+ XEN_PLACEHOLDER_VECTOR,
+
+ /* Xen IPIs go here */
+ XEN_NR_IPIS,
+};
+
+static inline int xen_irqs_disabled(struct pt_regs *regs)
+{
+ return raw_irqs_disabled_flags(regs->ARM_cpsr);
+}
+
+#endif /* _ASM_ARM_XEN_EVENTS_H */
diff --git a/arch/arm/include/asm/xen/hypercall.h b/arch/arm/include/asm/xen/hypercall.h
new file mode 100644
index 0000000000000000000000000000000000000000..8a823253d775d83337bab6e833d30949e553e49d
--- /dev/null
+++ b/arch/arm/include/asm/xen/hypercall.h
@@ -0,0 +1,69 @@
+/******************************************************************************
+ * hypercall.h
+ *
+ * Linux-specific hypervisor handling.
+ *
+ * Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Citrix, 2012
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation; or, when distributed
+ * separately from the Linux kernel or incorporated into other
+ * software packages, subject to the following license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this source file (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.
+ */
+
+#ifndef _ASM_ARM_XEN_HYPERCALL_H
+#define _ASM_ARM_XEN_HYPERCALL_H
+
+#include <xen/interface/xen.h>
+
+long privcmd_call(unsigned call, unsigned long a1,
+ unsigned long a2, unsigned long a3,
+ unsigned long a4, unsigned long a5);
+int HYPERVISOR_xen_version(int cmd, void *arg);
+int HYPERVISOR_console_io(int cmd, int count, char *str);
+int HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count);
+int HYPERVISOR_sched_op(int cmd, void *arg);
+int HYPERVISOR_event_channel_op(int cmd, void *arg);
+unsigned long HYPERVISOR_hvm_op(int op, void *arg);
+int HYPERVISOR_memory_op(unsigned int cmd, void *arg);
+int HYPERVISOR_physdev_op(int cmd, void *arg);
+
+static inline void
+MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,
+ unsigned int new_val, unsigned long flags)
+{
+ BUG();
+}
+
+static inline void
+MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req,
+ int count, int *success_count, domid_t domid)
+{
+ BUG();
+}
+
+static inline int
+HYPERVISOR_multicall(void *call_list, int nr_calls)
+{
+ BUG();
+}
+#endif /* _ASM_ARM_XEN_HYPERCALL_H */
diff --git a/arch/arm/include/asm/xen/hypervisor.h b/arch/arm/include/asm/xen/hypervisor.h
new file mode 100644
index 0000000000000000000000000000000000000000..d7ab99a0c9ebe2499b2c4defca40c0cb4a893358
--- /dev/null
+++ b/arch/arm/include/asm/xen/hypervisor.h
@@ -0,0 +1,19 @@
+#ifndef _ASM_ARM_XEN_HYPERVISOR_H
+#define _ASM_ARM_XEN_HYPERVISOR_H
+
+extern struct shared_info *HYPERVISOR_shared_info;
+extern struct start_info *xen_start_info;
+
+/* Lazy mode for batching updates / context switch */
+enum paravirt_lazy_mode {
+ PARAVIRT_LAZY_NONE,
+ PARAVIRT_LAZY_MMU,
+ PARAVIRT_LAZY_CPU,
+};
+
+static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
+{
+ return PARAVIRT_LAZY_NONE;
+}
+
+#endif /* _ASM_ARM_XEN_HYPERVISOR_H */
diff --git a/arch/arm/include/asm/xen/interface.h b/arch/arm/include/asm/xen/interface.h
new file mode 100644
index 0000000000000000000000000000000000000000..ae05e56dd17d6eb2e270117172dbc327f27b82d2
--- /dev/null
+++ b/arch/arm/include/asm/xen/interface.h
@@ -0,0 +1,73 @@
+/******************************************************************************
+ * Guest OS interface to ARM Xen.
+ *
+ * Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Citrix, 2012
+ */
+
+#ifndef _ASM_ARM_XEN_INTERFACE_H
+#define _ASM_ARM_XEN_INTERFACE_H
+
+#include <linux/types.h>
+
+#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
+
+#define __DEFINE_GUEST_HANDLE(name, type) \
+ typedef struct { union { type *p; uint64_aligned_t q; }; } \
+ __guest_handle_ ## name
+
+#define DEFINE_GUEST_HANDLE_STRUCT(name) \
+ __DEFINE_GUEST_HANDLE(name, struct name)
+#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
+#define GUEST_HANDLE(name) __guest_handle_ ## name
+
+#define set_xen_guest_handle(hnd, val) \
+ do { \
+ if (sizeof(hnd) == 8) \
+ *(uint64_t *)&(hnd) = 0; \
+ (hnd).p = val; \
+ } while (0)
+
+#ifndef __ASSEMBLY__
+/* Explicitly size integers that represent pfns in the interface with
+ * Xen so that we can have one ABI that works for 32 and 64 bit guests. */
+typedef uint64_t xen_pfn_t;
+typedef uint64_t xen_ulong_t;
+/* Guest handles for primitive C types. */
+__DEFINE_GUEST_HANDLE(uchar, unsigned char);
+__DEFINE_GUEST_HANDLE(uint, unsigned int);
+__DEFINE_GUEST_HANDLE(ulong, unsigned long);
+DEFINE_GUEST_HANDLE(char);
+DEFINE_GUEST_HANDLE(int);
+DEFINE_GUEST_HANDLE(long);
+DEFINE_GUEST_HANDLE(void);
+DEFINE_GUEST_HANDLE(uint64_t);
+DEFINE_GUEST_HANDLE(uint32_t);
+DEFINE_GUEST_HANDLE(xen_pfn_t);
+
+/* Maximum number of virtual CPUs in multi-processor guests. */
+#define MAX_VIRT_CPUS 1
+
+struct arch_vcpu_info { };
+struct arch_shared_info { };
+
+/* TODO: Move pvclock definitions some place arch independent */
+struct pvclock_vcpu_time_info {
+ u32 version;
+ u32 pad0;
+ u64 tsc_timestamp;
+ u64 system_time;
+ u32 tsc_to_system_mul;
+ s8 tsc_shift;
+ u8 flags;
+ u8 pad[2];
+} __attribute__((__packed__)); /* 32 bytes */
+
+/* It is OK to have a 12 bytes struct with no padding because it is packed */
+struct pvclock_wall_clock {
+ u32 version;
+ u32 sec;
+ u32 nsec;
+} __attribute__((__packed__));
+#endif
+
+#endif /* _ASM_ARM_XEN_INTERFACE_H */
diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h
new file mode 100644
index 0000000000000000000000000000000000000000..174202318dfff2779ece119e7b45949b82f429e0
--- /dev/null
+++ b/arch/arm/include/asm/xen/page.h
@@ -0,0 +1,82 @@
+#ifndef _ASM_ARM_XEN_PAGE_H
+#define _ASM_ARM_XEN_PAGE_H
+
+#include <asm/page.h>
+#include <asm/pgtable.h>
+
+#include <linux/pfn.h>
+#include <linux/types.h>
+
+#include <xen/interface/grant_table.h>
+
+#define pfn_to_mfn(pfn) (pfn)
+#define phys_to_machine_mapping_valid (1)
+#define mfn_to_pfn(mfn) (mfn)
+#define mfn_to_virt(m) (__va(mfn_to_pfn(m) << PAGE_SHIFT))
+
+#define pte_mfn pte_pfn
+#define mfn_pte pfn_pte
+
+/* Xen machine address */
+typedef struct xmaddr {
+ phys_addr_t maddr;
+} xmaddr_t;
+
+/* Xen pseudo-physical address */
+typedef struct xpaddr {
+ phys_addr_t paddr;
+} xpaddr_t;
+
+#define XMADDR(x) ((xmaddr_t) { .maddr = (x) })
+#define XPADDR(x) ((xpaddr_t) { .paddr = (x) })
+
+static inline xmaddr_t phys_to_machine(xpaddr_t phys)
+{
+ unsigned offset = phys.paddr & ~PAGE_MASK;
+ return XMADDR(PFN_PHYS(pfn_to_mfn(PFN_DOWN(phys.paddr))) | offset);
+}
+
+static inline xpaddr_t machine_to_phys(xmaddr_t machine)
+{
+ unsigned offset = machine.maddr & ~PAGE_MASK;
+ return XPADDR(PFN_PHYS(mfn_to_pfn(PFN_DOWN(machine.maddr))) | offset);
+}
+/* VIRT <-> MACHINE conversion */
+#define virt_to_machine(v) (phys_to_machine(XPADDR(__pa(v))))
+#define virt_to_pfn(v) (PFN_DOWN(__pa(v)))
+#define virt_to_mfn(v) (pfn_to_mfn(virt_to_pfn(v)))
+#define mfn_to_virt(m) (__va(mfn_to_pfn(m) << PAGE_SHIFT))
+
+static inline xmaddr_t arbitrary_virt_to_machine(void *vaddr)
+{
+ /* TODO: assuming it is mapped in the kernel 1:1 */
+ return virt_to_machine(vaddr);
+}
+
+/* TODO: this shouldn't be here but it is because the frontend drivers
+ * are using it (its rolled in headers) even though we won't hit the code path.
+ * So for right now just punt with this.
+ */
+static inline pte_t *lookup_address(unsigned long address, unsigned int *level)
+{
+ BUG();
+ return NULL;
+}
+
+static inline int m2p_add_override(unsigned long mfn, struct page *page,
+ struct gnttab_map_grant_ref *kmap_op)
+{
+ return 0;
+}
+
+static inline int m2p_remove_override(struct page *page, bool clear_pte)
+{
+ return 0;
+}
+
+static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+ BUG();
+ return false;
+}
+#endif /* _ASM_ARM_XEN_PAGE_H */
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index 5f6b7d543e55ffb5f519043a85466683b9557dd1..560e0df728f89931826f080cfe87dda6abcec128 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -659,6 +659,7 @@ static void __init v2m_dt_init(void)
const static char *v2m_dt_match[] __initconst = {
"arm,vexpress",
+ "xen,xenvm",
NULL,
};
diff --git a/arch/arm/xen/Makefile b/arch/arm/xen/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..43841033afd3262ecc8b8e6a129af425c74c230d
--- /dev/null
+++ b/arch/arm/xen/Makefile
@@ -0,0 +1 @@
+obj-y := enlighten.o hypercall.o grant-table.o
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
new file mode 100644
index 0000000000000000000000000000000000000000..59bcb96ac3692446989501f363301daa81674d5b
--- /dev/null
+++ b/arch/arm/xen/enlighten.c
@@ -0,0 +1,168 @@
+#include <xen/xen.h>
+#include <xen/events.h>
+#include <xen/grant_table.h>
+#include <xen/hvm.h>
+#include <xen/interface/xen.h>
+#include <xen/interface/memory.h>
+#include <xen/interface/hvm/params.h>
+#include <xen/features.h>
+#include <xen/platform_pci.h>
+#include <xen/xenbus.h>
+#include <asm/xen/hypervisor.h>
+#include <asm/xen/hypercall.h>
+#include <linux/interrupt.h>
+#include <linux/irqreturn.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+
+struct start_info _xen_start_info;
+struct start_info *xen_start_info = &_xen_start_info;
+EXPORT_SYMBOL_GPL(xen_start_info);
+
+enum xen_domain_type xen_domain_type = XEN_NATIVE;
+EXPORT_SYMBOL_GPL(xen_domain_type);
+
+struct shared_info xen_dummy_shared_info;
+struct shared_info *HYPERVISOR_shared_info = (void *)&xen_dummy_shared_info;
+
+DEFINE_PER_CPU(struct vcpu_info *, xen_vcpu);
+
+/* TODO: to be removed */
+__read_mostly int xen_have_vector_callback;
+EXPORT_SYMBOL_GPL(xen_have_vector_callback);
+
+int xen_platform_pci_unplug = XEN_UNPLUG_ALL;
+EXPORT_SYMBOL_GPL(xen_platform_pci_unplug);
+
+static __read_mostly int xen_events_irq = -1;
+
+int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
+ unsigned long addr,
+ unsigned long mfn, int nr,
+ pgprot_t prot, unsigned domid)
+{
+ return -ENOSYS;
+}
+EXPORT_SYMBOL_GPL(xen_remap_domain_mfn_range);
+
+/*
+ * see Documentation/devicetree/bindings/arm/xen.txt for the
+ * documentation of the Xen Device Tree format.
+ */
+#define GRANT_TABLE_PHYSADDR 0
+static int __init xen_guest_init(void)
+{
+ struct xen_add_to_physmap xatp;
+ static struct shared_info *shared_info_page = 0;
+ struct device_node *node;
+ int len;
+ const char *s = NULL;
+ const char *version = NULL;
+ const char *xen_prefix = "xen,xen-";
+ struct resource res;
+
+ node = of_find_compatible_node(NULL, NULL, "xen,xen");
+ if (!node) {
+ pr_debug("No Xen support\n");
+ return 0;
+ }
+ s = of_get_property(node, "compatible", &len);
+ if (strlen(xen_prefix) + 3 < len &&
+ !strncmp(xen_prefix, s, strlen(xen_prefix)))
+ version = s + strlen(xen_prefix);
+ if (version == NULL) {
+ pr_debug("Xen version not found\n");
+ return 0;
+ }
+ if (of_address_to_resource(node, GRANT_TABLE_PHYSADDR, &res))
+ return 0;
+ xen_hvm_resume_frames = res.start >> PAGE_SHIFT;
+ xen_events_irq = irq_of_parse_and_map(node, 0);
+ pr_info("Xen %s support found, events_irq=%d gnttab_frame_pfn=%lx\n",
+ version, xen_events_irq, xen_hvm_resume_frames);
+ xen_domain_type = XEN_HVM_DOMAIN;
+
+ xen_setup_features();
+ if (xen_feature(XENFEAT_dom0))
+ xen_start_info->flags |= SIF_INITDOMAIN|SIF_PRIVILEGED;
+ else
+ xen_start_info->flags &= ~(SIF_INITDOMAIN|SIF_PRIVILEGED);
+
+ if (!shared_info_page)
+ shared_info_page = (struct shared_info *)
+ get_zeroed_page(GFP_KERNEL);
+ if (!shared_info_page) {
+ pr_err("not enough memory\n");
+ return -ENOMEM;
+ }
+ xatp.domid = DOMID_SELF;
+ xatp.idx = 0;
+ xatp.space = XENMAPSPACE_shared_info;
+ xatp.gpfn = __pa(shared_info_page) >> PAGE_SHIFT;
+ if (HYPERVISOR_memory_op(XENMEM_add_to_physmap, &xatp))
+ BUG();
+
+ HYPERVISOR_shared_info = (struct shared_info *)shared_info_page;
+
+ /* xen_vcpu is a pointer to the vcpu_info struct in the shared_info
+ * page, we use it in the event channel upcall and in some pvclock
+ * related functions. We don't need the vcpu_info placement
+ * optimizations because we don't use any pv_mmu or pv_irq op on
+ * HVM.
+ * The shared info contains exactly 1 CPU (the boot CPU). The guest
+ * is required to use VCPUOP_register_vcpu_info to place vcpu info
+ * for secondary CPUs as they are brought up. */
+ per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
+
+ gnttab_init();
+ if (!xen_initial_domain())
+ xenbus_probe(NULL);
+
+ return 0;
+}
+core_initcall(xen_guest_init);
+
+static irqreturn_t xen_arm_callback(int irq, void *arg)
+{
+ xen_hvm_evtchn_do_upcall();
+ return IRQ_HANDLED;
+}
+
+static int __init xen_init_events(void)
+{
+ if (!xen_domain() || xen_events_irq < 0)
+ return -ENODEV;
+
+ xen_init_IRQ();
+
+ if (request_percpu_irq(xen_events_irq, xen_arm_callback,
+ "events", xen_vcpu)) {
+ pr_err("Error requesting IRQ %d\n", xen_events_irq);
+ return -EINVAL;
+ }
+
+ enable_percpu_irq(xen_events_irq, 0);
+
+ return 0;
+}
+postcore_initcall(xen_init_events);
+
+/* XXX: only until balloon is properly working */
+int alloc_xenballooned_pages(int nr_pages, struct page **pages, bool highmem)
+{
+ *pages = alloc_pages(highmem ? GFP_HIGHUSER : GFP_KERNEL,
+ get_order(nr_pages));
+ if (*pages == NULL)
+ return -ENOMEM;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(alloc_xenballooned_pages);
+
+void free_xenballooned_pages(int nr_pages, struct page **pages)
+{
+ kfree(*pages);
+ *pages = NULL;
+}
+EXPORT_SYMBOL_GPL(free_xenballooned_pages);
diff --git a/arch/arm/xen/grant-table.c b/arch/arm/xen/grant-table.c
new file mode 100644
index 0000000000000000000000000000000000000000..dbd1330c01966c20667853b6d9de97754b869d91
--- /dev/null
+++ b/arch/arm/xen/grant-table.c
@@ -0,0 +1,53 @@
+/******************************************************************************
+ * grant_table.c
+ * ARM specific part
+ *
+ * Granting foreign access to our memory reservation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation; or, when distributed
+ * separately from the Linux kernel or incorporated into other
+ * software packages, subject to the following license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this source file (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.
+ */
+
+#include <xen/interface/xen.h>
+#include <xen/page.h>
+#include <xen/grant_table.h>
+
+int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
+ unsigned long max_nr_gframes,
+ void **__shared)
+{
+ return -ENOSYS;
+}
+
+void arch_gnttab_unmap(void *shared, unsigned long nr_gframes)
+{
+ return;
+}
+
+int arch_gnttab_map_status(uint64_t *frames, unsigned long nr_gframes,
+ unsigned long max_nr_gframes,
+ grant_status_t **__shared)
+{
+ return -ENOSYS;
+}
diff --git a/arch/arm/xen/hypercall.S b/arch/arm/xen/hypercall.S
new file mode 100644
index 0000000000000000000000000000000000000000..074f5ed101b9d17bf49c2a0cd13b078408fcb64c
--- /dev/null
+++ b/arch/arm/xen/hypercall.S
@@ -0,0 +1,106 @@
+/******************************************************************************
+ * hypercall.S
+ *
+ * Xen hypercall wrappers
+ *
+ * Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Citrix, 2012
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation; or, when distributed
+ * separately from the Linux kernel or incorporated into other
+ * software packages, subject to the following license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this source file (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.
+ */
+
+/*
+ * The Xen hypercall calling convention is very similar to the ARM
+ * procedure calling convention: the first paramter is passed in r0, the
+ * second in r1, the third in r2 and the fourth in r3. Considering that
+ * Xen hypercalls have 5 arguments at most, the fifth paramter is passed
+ * in r4, differently from the procedure calling convention of using the
+ * stack for that case.
+ *
+ * The hypercall number is passed in r12.
+ *
+ * The return value is in r0.
+ *
+ * The hvc ISS is required to be 0xEA1, that is the Xen specific ARM
+ * hypercall tag.
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+#include <xen/interface/xen.h>
+
+
+/* HVC 0xEA1 */
+#ifdef CONFIG_THUMB2_KERNEL
+#define xen_hvc .word 0xf7e08ea1
+#else
+#define xen_hvc .word 0xe140ea71
+#endif
+
+#define HYPERCALL_SIMPLE(hypercall) \
+ENTRY(HYPERVISOR_##hypercall) \
+ mov r12, #__HYPERVISOR_##hypercall; \
+ xen_hvc; \
+ mov pc, lr; \
+ENDPROC(HYPERVISOR_##hypercall)
+
+#define HYPERCALL0 HYPERCALL_SIMPLE
+#define HYPERCALL1 HYPERCALL_SIMPLE
+#define HYPERCALL2 HYPERCALL_SIMPLE
+#define HYPERCALL3 HYPERCALL_SIMPLE
+#define HYPERCALL4 HYPERCALL_SIMPLE
+
+#define HYPERCALL5(hypercall) \
+ENTRY(HYPERVISOR_##hypercall) \
+ stmdb sp!, {r4} \
+ ldr r4, [sp, #4] \
+ mov r12, #__HYPERVISOR_##hypercall; \
+ xen_hvc \
+ ldm sp!, {r4} \
+ mov pc, lr \
+ENDPROC(HYPERVISOR_##hypercall)
+
+ .text
+
+HYPERCALL2(xen_version);
+HYPERCALL3(console_io);
+HYPERCALL3(grant_table_op);
+HYPERCALL2(sched_op);
+HYPERCALL2(event_channel_op);
+HYPERCALL2(hvm_op);
+HYPERCALL2(memory_op);
+HYPERCALL2(physdev_op);
+
+ENTRY(privcmd_call)
+ stmdb sp!, {r4}
+ mov r12, r0
+ mov r0, r1
+ mov r1, r2
+ mov r2, r3
+ ldr r3, [sp, #8]
+ ldr r4, [sp, #4]
+ xen_hvc
+ ldm sp!, {r4}
+ mov pc, lr
+ENDPROC(privcmd_call);
diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h
index 3d52a5bbd857702c62baece0a658714a8b3c1632..e88c5de27410bde450885459467ef50db4c0d21c 100644
--- a/arch/ia64/include/asm/xen/interface.h
+++ b/arch/ia64/include/asm/xen/interface.h
@@ -71,6 +71,7 @@
* with Xen so that we could have one ABI that works for 32 and 64 bit
* guests. */
typedef unsigned long xen_pfn_t;
+typedef unsigned long xen_ulong_t;
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
__DEFINE_GUEST_HANDLE(uint, unsigned int);
diff --git a/arch/x86/include/asm/xen/interface.h b/arch/x86/include/asm/xen/interface.h
index 1707cfa928fbff64b74a85a2de28c345308353fc..6d2f75a82a14bca62162f38cde9fff8e6404bec9 100644
--- a/arch/x86/include/asm/xen/interface.h
+++ b/arch/x86/include/asm/xen/interface.h
@@ -51,6 +51,7 @@
* with Xen so that on ARM we can have one ABI that works for 32 and 64
* bit guests. */
typedef unsigned long xen_pfn_t;
+typedef unsigned long xen_ulong_t;
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
__DEFINE_GUEST_HANDLE(uint, unsigned int);
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 2d932c351f91fec22daa30d1a1aabe20a772a2bb..bf788d34530df5fbb93e60bb64023d80f7bbedf3 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -33,6 +33,7 @@
#include <linux/memblock.h>
#include <xen/xen.h>
+#include <xen/events.h>
#include <xen/interface/xen.h>
#include <xen/interface/version.h>
#include <xen/interface/physdev.h>
diff --git a/arch/x86/xen/irq.c b/arch/x86/xen/irq.c
index 1573376579714ec3b9a195a898090dba7ac20087..01a4dc015ae1e37206469df5ea45b3437da19cad 100644
--- a/arch/x86/xen/irq.c
+++ b/arch/x86/xen/irq.c
@@ -5,6 +5,7 @@
#include <xen/interface/xen.h>
#include <xen/interface/sched.h>
#include <xen/interface/vcpu.h>
+#include <xen/events.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index bb5a8105ea8604e6fdb0b2f720b5e0403ceaf100..a95b41744ad0bafdcde069cb965cabb67ab0f61b 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -35,7 +35,6 @@ void xen_set_pat(u64);
char * __init xen_memory_setup(void);
void __init xen_arch_setup(void);
-void __init xen_init_IRQ(void);
void xen_enable_sysenter(void);
void xen_enable_syscall(void);
void xen_vcpu_restore(void);
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index c6decb901e5e16f4ba09ccef7db33675aeecb189..280a13846e6cb06e1f774dd927598c1f3bfa5a8c 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -42,6 +42,7 @@
#include <xen/events.h>
#include <xen/page.h>
+#include <xen/xen.h>
#include <asm/xen/hypervisor.h>
#include <asm/xen/hypercall.h>
#include "common.h"
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 05593d8820233b72681af9f76510cdc9a5eefb52..4ebfcf3d8a3b26d07c5cd2e742ab59aff3c5ba63 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -40,6 +40,7 @@
#include <net/tcp.h>
+#include <xen/xen.h>
#include <xen/events.h>
#include <xen/interface/memory.h>
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index c934fe8583f5f17c33a577993a934205db2d3609..caa011008cd0c9fe11b38507e7f550552bd93170 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -43,6 +43,7 @@
#include <linux/slab.h>
#include <net/ip.h>
+#include <asm/xen/page.h>
#include <xen/xen.h>
#include <xen/xenbus.h>
#include <xen/events.h>
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index a4a3cab2f4596c4f1681a999bebf6353307d5084..0e86370354572ac7d4116eb70cf6e41d1a52cf35 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -1,11 +1,19 @@
-obj-y += grant-table.o features.o events.o manage.o balloon.o
+ifneq ($(CONFIG_ARM),y)
+obj-y += manage.o balloon.o
+obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o
+endif
+obj-y += grant-table.o features.o events.o
obj-y += xenbus/
nostackp := $(call cc-option, -fno-stack-protector)
CFLAGS_features.o := $(nostackp)
+dom0-$(CONFIG_PCI) += pci.o
+dom0-$(CONFIG_USB_SUPPORT) += dbgp.o
+dom0-$(CONFIG_ACPI) += acpi.o
+dom0-$(CONFIG_X86) += pcpu.o
+obj-$(CONFIG_XEN_DOM0) += $(dom0-y)
obj-$(CONFIG_BLOCK) += biomerge.o
-obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o
obj-$(CONFIG_XEN_XENCOMM) += xencomm.o
obj-$(CONFIG_XEN_BALLOON) += xen-balloon.o
obj-$(CONFIG_XEN_SELFBALLOONING) += xen-selfballoon.o
@@ -17,8 +25,6 @@ obj-$(CONFIG_XEN_SYS_HYPERVISOR) += sys-hypervisor.o
obj-$(CONFIG_XEN_PVHVM) += platform-pci.o
obj-$(CONFIG_XEN_TMEM) += tmem.o
obj-$(CONFIG_SWIOTLB_XEN) += swiotlb-xen.o
-obj-$(CONFIG_XEN_DOM0) += pcpu.o
-obj-$(CONFIG_XEN_DOM0) += pci.o dbgp.o acpi.o
obj-$(CONFIG_XEN_MCE_LOG) += mcelog.o
obj-$(CONFIG_XEN_PCIDEV_BACKEND) += xen-pciback/
obj-$(CONFIG_XEN_PRIVCMD) += xen-privcmd.o
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index c60d1629c91601f366fef151a7d45f51736b1378..59e10a1286d53ff73aa3e0a6c91a5aed9033de9e 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -31,14 +31,16 @@
#include <linux/irqnr.h>
#include <linux/pci.h>
+#ifdef CONFIG_X86
#include <asm/desc.h>
#include <asm/ptrace.h>
#include <asm/irq.h>
#include <asm/idle.h>
#include <asm/io_apic.h>
-#include <asm/sync_bitops.h>
#include <asm/xen/page.h>
#include <asm/xen/pci.h>
+#endif
+#include <asm/sync_bitops.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
@@ -50,6 +52,9 @@
#include <xen/interface/event_channel.h>
#include <xen/interface/hvm/hvm_op.h>
#include <xen/interface/hvm/params.h>
+#include <xen/interface/physdev.h>
+#include <xen/interface/sched.h>
+#include <asm/hw_irq.h>
/*
* This lock protects updates to the following mapping and reference-count
@@ -1386,7 +1391,9 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
+#ifdef CONFIG_X86
exit_idle();
+#endif
irq_enter();
__xen_evtchn_do_upcall();
@@ -1797,7 +1804,7 @@ void xen_callback_vector(void) {}
void __init xen_init_IRQ(void)
{
- int i, rc;
+ int i;
evtchn_to_irq = kcalloc(NR_EVENT_CHANNELS, sizeof(*evtchn_to_irq),
GFP_KERNEL);
@@ -1813,6 +1820,7 @@ void __init xen_init_IRQ(void)
pirq_needs_eoi = pirq_needs_eoi_flag;
+#ifdef CONFIG_X86
if (xen_hvm_domain()) {
xen_callback_vector();
native_init_IRQ();
@@ -1820,6 +1828,7 @@ void __init xen_init_IRQ(void)
* __acpi_register_gsi can point at the right function */
pci_xen_hvm_init();
} else {
+ int rc;
struct physdev_pirq_eoi_gmfn eoi_gmfn;
irq_ctx_init(smp_processor_id());
@@ -1835,4 +1844,5 @@ void __init xen_init_IRQ(void)
} else
pirq_needs_eoi = pirq_check_eoi_map;
}
+#endif
}
diff --git a/include/xen/events.h b/include/xen/events.h
index 04399b28e821bf694a58d706e0b6c9f66e9c7d9f..c6bfe01acf6b4f4952f42ea171b68947c87ff16f 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -109,4 +109,6 @@ int xen_irq_from_gsi(unsigned gsi);
/* Determine whether to ignore this IRQ if it is passed to a guest. */
int xen_test_irq_shared(int irq);
+/* initialize Xen IRQ subsystem */
+void xen_init_IRQ(void);
#endif /* _XEN_EVENTS_H */
diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h
index b6ca39a069d80c984962db4659e2f9bbe3256573..131a6ccdba25693e6899b7813d99a6934e846ce4 100644
--- a/include/xen/interface/features.h
+++ b/include/xen/interface/features.h
@@ -50,6 +50,9 @@
/* x86: pirq can be used by HVM guests */
#define XENFEAT_hvm_pirqs 10
+/* operation as Dom0 is supported */
+#define XENFEAT_dom0 11
+
#define XENFEAT_NR_SUBMAPS 1
#endif /* __XEN_PUBLIC_FEATURES_H__ */
diff --git a/include/xen/interface/io/protocols.h b/include/xen/interface/io/protocols.h
index 01fc8ae5f0b06f9d96ed76852152a5ef64cf5d63..0eafaf254fff0e282e4fe340ede1950a5d9e86cb 100644
--- a/include/xen/interface/io/protocols.h
+++ b/include/xen/interface/io/protocols.h
@@ -5,6 +5,7 @@
#define XEN_IO_PROTO_ABI_X86_64 "x86_64-abi"
#define XEN_IO_PROTO_ABI_IA64 "ia64-abi"
#define XEN_IO_PROTO_ABI_POWERPC64 "powerpc64-abi"
+#define XEN_IO_PROTO_ABI_ARM "arm-abi"
#if defined(__i386__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_X86_32
@@ -14,6 +15,8 @@
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_IA64
#elif defined(__powerpc64__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_POWERPC64
+#elif defined(__arm__)
+# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_ARM
#else
# error arch fixup needed here
#endif
diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h
index d8e33a93ea4d4483d69ea256c5abb99b16862a8c..b66d04ce6957549a1097c532bc483e5ee6ab38d8 100644
--- a/include/xen/interface/memory.h
+++ b/include/xen/interface/memory.h
@@ -34,7 +34,7 @@ struct xen_memory_reservation {
GUEST_HANDLE(xen_pfn_t) extent_start;
/* Number of extents, and size/alignment of each (2^extent_order pages). */
- unsigned long nr_extents;
+ xen_ulong_t nr_extents;
unsigned int extent_order;
/*
@@ -92,7 +92,7 @@ struct xen_memory_exchange {
* command will be non-zero.
* 5. THIS FIELD MUST BE INITIALISED TO ZERO BY THE CALLER!
*/
- unsigned long nr_exchanged;
+ xen_ulong_t nr_exchanged;
};
DEFINE_GUEST_HANDLE_STRUCT(xen_memory_exchange);
@@ -148,8 +148,8 @@ DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mfn_list);
*/
#define XENMEM_machphys_mapping 12
struct xen_machphys_mapping {
- unsigned long v_start, v_end; /* Start and end virtual addresses. */
- unsigned long max_mfn; /* Maximum MFN that can be looked up. */
+ xen_ulong_t v_start, v_end; /* Start and end virtual addresses. */
+ xen_ulong_t max_mfn; /* Maximum MFN that can be looked up. */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mapping_t);
@@ -172,7 +172,7 @@ struct xen_add_to_physmap {
unsigned int space;
/* Index into source mapping space. */
- unsigned long idx;
+ xen_ulong_t idx;
/* GPFN where the source mapping page should appear. */
xen_pfn_t gpfn;
@@ -189,7 +189,7 @@ struct xen_translate_gpfn_list {
domid_t domid;
/* Length of list. */
- unsigned long nr_gpfns;
+ xen_ulong_t nr_gpfns;
/* List of GPFNs to translate. */
GUEST_HANDLE(ulong) gpfn_list;
diff --git a/include/xen/interface/physdev.h b/include/xen/interface/physdev.h
index bfa1d50fe15bed0c5d2b37d392454ce5e6d56d02..1844d31f45520fef57c93be90ba7e247e1a0b042 100644
--- a/include/xen/interface/physdev.h
+++ b/include/xen/interface/physdev.h
@@ -56,7 +56,7 @@ struct physdev_eoi {
#define PHYSDEVOP_pirq_eoi_gmfn_v2 28
struct physdev_pirq_eoi_gmfn {
/* IN */
- unsigned long gmfn;
+ xen_ulong_t gmfn;
};
/*
diff --git a/include/xen/interface/version.h b/include/xen/interface/version.h
index 5f5e551cf546548a034e7423387a1a2e8e2f09db..7ff6498679a371e218137b3b5d2e6f1691304795 100644
--- a/include/xen/interface/version.h
+++ b/include/xen/interface/version.h
@@ -45,7 +45,7 @@ struct xen_changeset_info {
#define XENVER_platform_parameters 5
struct xen_platform_parameters {
- unsigned long virt_start;
+ xen_ulong_t virt_start;
};
#define XENVER_get_features 6
diff --git a/include/xen/xen.h b/include/xen/xen.h
index a16402418d314710cf8281a28b5023cc06be94a1..a74d4362c4f84aca7a7218162a6cdba7df385fff 100644
--- a/include/xen/xen.h
+++ b/include/xen/xen.h
@@ -23,8 +23,8 @@ extern enum xen_domain_type xen_domain_type;
#include <xen/interface/xen.h>
#include <asm/xen/hypervisor.h>
-#define xen_initial_domain() (xen_pv_domain() && \
- xen_start_info->flags & SIF_INITDOMAIN)
+#define xen_initial_domain() (xen_domain() && \
+ xen_start_info && xen_start_info->flags & SIF_INITDOMAIN)
#else /* !CONFIG_XEN_DOM0 */
#define xen_initial_domain() (0)
#endif /* CONFIG_XEN_DOM0 */