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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-05 13:45:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-05 13:45:50 -0700
commitdb7a1535d2dcf91115ba0fb940b1902c05305843 (patch)
tree29757b0b2db0e56bc520444d7233f2462d3c199a /include
parentab265d5cdde7133f2569e2b5f341a80907b8600e (diff)
parent7cc88fdcff3cc7f0d5d2384ffd7f6d4ce9a745f1 (diff)
Merge branch 'upstream/xen' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
* 'upstream/xen' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: (23 commits) xen/panic: use xen_reboot and fix smp_send_stop Xen: register panic notifier to take crashes of xen guests on panic xen: support large numbers of CPUs with vcpu info placement xen: drop xen_sched_clock in favour of using plain wallclock time pvops: do not notify callers from register_xenstore_notifier Introduce CONFIG_XEN_PVHVM compile option blkfront: do not create a PV cdrom device if xen_hvm_guest support multiple .discard.* sections to avoid section type conflicts xen/pvhvm: fix build problem when !CONFIG_XEN xenfs: enable for HVM domains too x86: Call HVMOP_pagetable_dying on exit_mmap. x86: Unplug emulated disks and nics. x86: Use xen_vcpuop_clockevent, xen_clocksource and xen wallclock. implement O_NONBLOCK for /proc/xen/xenbus xen: Fix find_unbound_irq in presence of ioapic irqs. xen: Add suspend/resume support for PV on HVM guests. xen: Xen PCI platform device driver. x86/xen: event channels delivery on HVM. x86: early PV on HVM features initialization. xen: Add support for HVM hypercalls. ...
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/vmlinux.lds.h1
-rw-r--r--include/linux/pci_ids.h3
-rw-r--r--include/xen/events.h7
-rw-r--r--include/xen/grant_table.h4
-rw-r--r--include/xen/hvm.h30
-rw-r--r--include/xen/interface/features.h6
-rw-r--r--include/xen/interface/grant_table.h1
-rw-r--r--include/xen/interface/hvm/hvm_op.h46
-rw-r--r--include/xen/interface/hvm/params.h95
-rw-r--r--include/xen/platform_pci.h49
-rw-r--r--include/xen/xen-ops.h3
11 files changed, 245 insertions, 0 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 030a954ed29..4e7ae600205 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -653,6 +653,7 @@
EXIT_DATA \
EXIT_CALL \
*(.discard) \
+ *(.discard.*) \
}
/**
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 33145408f04..40c804d484c 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2773,3 +2773,6 @@
#define PCI_DEVICE_ID_RME_DIGI32 0x9896
#define PCI_DEVICE_ID_RME_DIGI32_PRO 0x9897
#define PCI_DEVICE_ID_RME_DIGI32_8 0x9898
+
+#define PCI_VENDOR_ID_XEN 0x5853
+#define PCI_DEVICE_ID_XEN_PLATFORM 0x0001
diff --git a/include/xen/events.h b/include/xen/events.h
index e68d59a90ca..a15d93262e3 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -56,4 +56,11 @@ void xen_poll_irq(int irq);
/* Determine the IRQ which is bound to an event channel */
unsigned irq_from_evtchn(unsigned int evtchn);
+/* Xen HVM evtchn vector callback */
+extern void xen_hvm_callback_vector(void);
+extern int xen_have_vector_callback;
+int xen_set_callback_via(uint64_t via);
+void xen_evtchn_do_upcall(struct pt_regs *regs);
+void xen_hvm_evtchn_do_upcall(void);
+
#endif /* _XEN_EVENTS_H */
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index a40f1cd91be..9a731706a01 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -51,6 +51,7 @@ struct gnttab_free_callback {
u16 count;
};
+int gnttab_init(void);
int gnttab_suspend(void);
int gnttab_resume(void);
@@ -112,6 +113,9 @@ int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
void arch_gnttab_unmap_shared(struct grant_entry *shared,
unsigned long nr_gframes);
+extern unsigned long xen_hvm_resume_frames;
+unsigned int gnttab_max_grant_frames(void);
+
#define gnttab_map_vaddr(map) ((void *)(map.host_virt_addr))
#endif /* __ASM_GNTTAB_H__ */
diff --git a/include/xen/hvm.h b/include/xen/hvm.h
new file mode 100644
index 00000000000..b193fa2f9fd
--- /dev/null
+++ b/include/xen/hvm.h
@@ -0,0 +1,30 @@
+/* Simple wrappers around HVM functions */
+#ifndef XEN_HVM_H__
+#define XEN_HVM_H__
+
+#include <xen/interface/hvm/params.h>
+#include <asm/xen/hypercall.h>
+
+static inline int hvm_get_parameter(int idx, uint64_t *value)
+{
+ struct xen_hvm_param xhv;
+ int r;
+
+ xhv.domid = DOMID_SELF;
+ xhv.index = idx;
+ r = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
+ if (r < 0) {
+ printk(KERN_ERR "Cannot get hvm parameter %d: %d!\n",
+ idx, r);
+ return r;
+ }
+ *value = xhv.value;
+ return r;
+}
+
+#define HVM_CALLBACK_VIA_TYPE_VECTOR 0x2
+#define HVM_CALLBACK_VIA_TYPE_SHIFT 56
+#define HVM_CALLBACK_VECTOR(x) (((uint64_t)HVM_CALLBACK_VIA_TYPE_VECTOR)<<\
+ HVM_CALLBACK_VIA_TYPE_SHIFT | (x))
+
+#endif /* XEN_HVM_H__ */
diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h
index f51b6413b05..70d2563ab16 100644
--- a/include/xen/interface/features.h
+++ b/include/xen/interface/features.h
@@ -41,6 +41,12 @@
/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
#define XENFEAT_mmu_pt_update_preserve_ad 5
+/* x86: Does this Xen host support the HVM callback vector type? */
+#define XENFEAT_hvm_callback_vector 8
+
+/* x86: pvclock algorithm is safe to use on HVM */
+#define XENFEAT_hvm_safe_pvclock 9
+
#define XENFEAT_NR_SUBMAPS 1
#endif /* __XEN_PUBLIC_FEATURES_H__ */
diff --git a/include/xen/interface/grant_table.h b/include/xen/interface/grant_table.h
index 39da93c21de..39e571796e3 100644
--- a/include/xen/interface/grant_table.h
+++ b/include/xen/interface/grant_table.h
@@ -28,6 +28,7 @@
#ifndef __XEN_PUBLIC_GRANT_TABLE_H__
#define __XEN_PUBLIC_GRANT_TABLE_H__
+#include <xen/interface/xen.h>
/***********************************
* GRANT TABLE REPRESENTATION
diff --git a/include/xen/interface/hvm/hvm_op.h b/include/xen/interface/hvm/hvm_op.h
new file mode 100644
index 00000000000..a4827f46ee9
--- /dev/null
+++ b/include/xen/interface/hvm/hvm_op.h
@@ -0,0 +1,46 @@
+/*
+ * 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.
+ */
+
+#ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
+#define __XEN_PUBLIC_HVM_HVM_OP_H__
+
+/* Get/set subcommands: the second argument of the hypercall is a
+ * pointer to a xen_hvm_param struct. */
+#define HVMOP_set_param 0
+#define HVMOP_get_param 1
+struct xen_hvm_param {
+ domid_t domid; /* IN */
+ uint32_t index; /* IN */
+ uint64_t value; /* IN/OUT */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);
+
+/* Hint from PV drivers for pagetable destruction. */
+#define HVMOP_pagetable_dying 9
+struct xen_hvm_pagetable_dying {
+ /* Domain with a pagetable about to be destroyed. */
+ domid_t domid;
+ /* guest physical address of the toplevel pagetable dying */
+ aligned_u64 gpa;
+};
+typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
+DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
+
+#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */
diff --git a/include/xen/interface/hvm/params.h b/include/xen/interface/hvm/params.h
new file mode 100644
index 00000000000..1888d8c157e
--- /dev/null
+++ b/include/xen/interface/hvm/params.h
@@ -0,0 +1,95 @@
+/*
+ * 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.
+ */
+
+#ifndef __XEN_PUBLIC_HVM_PARAMS_H__
+#define __XEN_PUBLIC_HVM_PARAMS_H__
+
+#include "hvm_op.h"
+
+/*
+ * Parameter space for HVMOP_{set,get}_param.
+ */
+
+/*
+ * How should CPU0 event-channel notifications be delivered?
+ * val[63:56] == 0: val[55:0] is a delivery GSI (Global System Interrupt).
+ * val[63:56] == 1: val[55:0] is a delivery PCI INTx line, as follows:
+ * Domain = val[47:32], Bus = val[31:16],
+ * DevFn = val[15: 8], IntX = val[ 1: 0]
+ * val[63:56] == 2: val[7:0] is a vector number.
+ * If val == 0 then CPU0 event-channel notifications are not delivered.
+ */
+#define HVM_PARAM_CALLBACK_IRQ 0
+
+#define HVM_PARAM_STORE_PFN 1
+#define HVM_PARAM_STORE_EVTCHN 2
+
+#define HVM_PARAM_PAE_ENABLED 4
+
+#define HVM_PARAM_IOREQ_PFN 5
+
+#define HVM_PARAM_BUFIOREQ_PFN 6
+
+/*
+ * Set mode for virtual timers (currently x86 only):
+ * delay_for_missed_ticks (default):
+ * Do not advance a vcpu's time beyond the correct delivery time for
+ * interrupts that have been missed due to preemption. Deliver missed
+ * interrupts when the vcpu is rescheduled and advance the vcpu's virtual
+ * time stepwise for each one.
+ * no_delay_for_missed_ticks:
+ * As above, missed interrupts are delivered, but guest time always tracks
+ * wallclock (i.e., real) time while doing so.
+ * no_missed_ticks_pending:
+ * No missed interrupts are held pending. Instead, to ensure ticks are
+ * delivered at some non-zero rate, if we detect missed ticks then the
+ * internal tick alarm is not disabled if the VCPU is preempted during the
+ * next tick period.
+ * one_missed_tick_pending:
+ * Missed interrupts are collapsed together and delivered as one 'late tick'.
+ * Guest time always tracks wallclock (i.e., real) time.
+ */
+#define HVM_PARAM_TIMER_MODE 10
+#define HVMPTM_delay_for_missed_ticks 0
+#define HVMPTM_no_delay_for_missed_ticks 1
+#define HVMPTM_no_missed_ticks_pending 2
+#define HVMPTM_one_missed_tick_pending 3
+
+/* Boolean: Enable virtual HPET (high-precision event timer)? (x86-only) */
+#define HVM_PARAM_HPET_ENABLED 11
+
+/* Identity-map page directory used by Intel EPT when CR0.PG=0. */
+#define HVM_PARAM_IDENT_PT 12
+
+/* Device Model domain, defaults to 0. */
+#define HVM_PARAM_DM_DOMAIN 13
+
+/* ACPI S state: currently support S0 and S3 on x86. */
+#define HVM_PARAM_ACPI_S_STATE 14
+
+/* TSS used on Intel when CR0.PE=0. */
+#define HVM_PARAM_VM86_TSS 15
+
+/* Boolean: Enable aligning all periodic vpts to reduce interrupts */
+#define HVM_PARAM_VPT_ALIGN 16
+
+#define HVM_NR_PARAMS 17
+
+#endif /* __XEN_PUBLIC_HVM_PARAMS_H__ */
diff --git a/include/xen/platform_pci.h b/include/xen/platform_pci.h
new file mode 100644
index 00000000000..ce9d671c636
--- /dev/null
+++ b/include/xen/platform_pci.h
@@ -0,0 +1,49 @@
+#ifndef _XEN_PLATFORM_PCI_H
+#define _XEN_PLATFORM_PCI_H
+
+#define XEN_IOPORT_MAGIC_VAL 0x49d2
+#define XEN_IOPORT_LINUX_PRODNUM 0x0003
+#define XEN_IOPORT_LINUX_DRVVER 0x0001
+
+#define XEN_IOPORT_BASE 0x10
+
+#define XEN_IOPORT_PLATFLAGS (XEN_IOPORT_BASE + 0) /* 1 byte access (R/W) */
+#define XEN_IOPORT_MAGIC (XEN_IOPORT_BASE + 0) /* 2 byte access (R) */
+#define XEN_IOPORT_UNPLUG (XEN_IOPORT_BASE + 0) /* 2 byte access (W) */
+#define XEN_IOPORT_DRVVER (XEN_IOPORT_BASE + 0) /* 4 byte access (W) */
+
+#define XEN_IOPORT_SYSLOG (XEN_IOPORT_BASE + 2) /* 1 byte access (W) */
+#define XEN_IOPORT_PROTOVER (XEN_IOPORT_BASE + 2) /* 1 byte access (R) */
+#define XEN_IOPORT_PRODNUM (XEN_IOPORT_BASE + 2) /* 2 byte access (W) */
+
+#define XEN_UNPLUG_ALL_IDE_DISKS 1
+#define XEN_UNPLUG_ALL_NICS 2
+#define XEN_UNPLUG_AUX_IDE_DISKS 4
+#define XEN_UNPLUG_ALL 7
+#define XEN_UNPLUG_IGNORE 8
+
+static inline int xen_must_unplug_nics(void) {
+#if (defined(CONFIG_XEN_NETDEV_FRONTEND) || \
+ defined(CONFIG_XEN_NETDEV_FRONTEND_MODULE)) && \
+ (defined(CONFIG_XEN_PLATFORM_PCI) || \
+ defined(CONFIG_XEN_PLATFORM_PCI_MODULE))
+ return 1;
+#else
+ return 0;
+#endif
+}
+
+static inline int xen_must_unplug_disks(void) {
+#if (defined(CONFIG_XEN_BLKDEV_FRONTEND) || \
+ defined(CONFIG_XEN_BLKDEV_FRONTEND_MODULE)) && \
+ (defined(CONFIG_XEN_PLATFORM_PCI) || \
+ defined(CONFIG_XEN_PLATFORM_PCI_MODULE))
+ return 1;
+#else
+ return 0;
+#endif
+}
+
+extern int xen_platform_pci_unplug;
+
+#endif /* _XEN_PLATFORM_PCI_H */
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index 883a21bba24..46bc81ef74c 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -7,6 +7,7 @@ DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);
void xen_pre_suspend(void);
void xen_post_suspend(int suspend_cancelled);
+void xen_hvm_post_suspend(int suspend_cancelled);
void xen_mm_pin_all(void);
void xen_mm_unpin_all(void);
@@ -14,4 +15,6 @@ void xen_mm_unpin_all(void);
void xen_timer_resume(void);
void xen_arch_resume(void);
+int xen_setup_shutdown_event(void);
+
#endif /* INCLUDE_XEN_OPS_H */