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authorH. Peter Anvin <hpa@linux.intel.com>2014-02-07 11:27:30 -0800
committerH. Peter Anvin <hpa@linux.intel.com>2014-02-07 11:27:30 -0800
commita3b072cd180c12e8fe0ece9487b9065808327640 (patch)
tree62b982041be84748852d77cdf6ca5639ef40858f /include/xen/interface
parent75a1ba5b2c529db60ca49626bcaf0bddf4548438 (diff)
parent081cd62a010f97b5bc1d2b0cd123c5abc692b68a (diff)
Merge tag 'efi-urgent' into x86/urgent
* Avoid WARN_ON() when mapping BGRT on Baytrail (EFI 32-bit). Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'include/xen/interface')
-rw-r--r--include/xen/interface/elfnote.h13
-rw-r--r--include/xen/interface/event_channel.h68
-rw-r--r--include/xen/interface/xen.h6
3 files changed, 81 insertions, 6 deletions
diff --git a/include/xen/interface/elfnote.h b/include/xen/interface/elfnote.h
index 0360b15f488..6f4eae328ca 100644
--- a/include/xen/interface/elfnote.h
+++ b/include/xen/interface/elfnote.h
@@ -140,6 +140,19 @@
*/
#define XEN_ELFNOTE_SUSPEND_CANCEL 14
+/*
+ * The features supported by this kernel (numeric).
+ *
+ * Other than XEN_ELFNOTE_FEATURES on pre-4.2 Xen, this note allows a
+ * kernel to specify support for features that older hypervisors don't
+ * know about. The set of features 4.2 and newer hypervisors will
+ * consider supported by the kernel is the combination of the sets
+ * specified through this and the string note.
+ *
+ * LEGACY: FEATURES
+ */
+#define XEN_ELFNOTE_SUPPORTED_FEATURES 17
+
#endif /* __XEN_PUBLIC_ELFNOTE_H__ */
/*
diff --git a/include/xen/interface/event_channel.h b/include/xen/interface/event_channel.h
index f4942921e20..7e6acef5415 100644
--- a/include/xen/interface/event_channel.h
+++ b/include/xen/interface/event_channel.h
@@ -190,6 +190,39 @@ struct evtchn_reset {
};
typedef struct evtchn_reset evtchn_reset_t;
+/*
+ * EVTCHNOP_init_control: initialize the control block for the FIFO ABI.
+ */
+#define EVTCHNOP_init_control 11
+struct evtchn_init_control {
+ /* IN parameters. */
+ uint64_t control_gfn;
+ uint32_t offset;
+ uint32_t vcpu;
+ /* OUT parameters. */
+ uint8_t link_bits;
+ uint8_t _pad[7];
+};
+
+/*
+ * EVTCHNOP_expand_array: add an additional page to the event array.
+ */
+#define EVTCHNOP_expand_array 12
+struct evtchn_expand_array {
+ /* IN parameters. */
+ uint64_t array_gfn;
+};
+
+/*
+ * EVTCHNOP_set_priority: set the priority for an event channel.
+ */
+#define EVTCHNOP_set_priority 13
+struct evtchn_set_priority {
+ /* IN parameters. */
+ uint32_t port;
+ uint32_t priority;
+};
+
struct evtchn_op {
uint32_t cmd; /* EVTCHNOP_* */
union {
@@ -207,4 +240,39 @@ struct evtchn_op {
};
DEFINE_GUEST_HANDLE_STRUCT(evtchn_op);
+/*
+ * 2-level ABI
+ */
+
+#define EVTCHN_2L_NR_CHANNELS (sizeof(xen_ulong_t) * sizeof(xen_ulong_t) * 64)
+
+/*
+ * FIFO ABI
+ */
+
+/* Events may have priorities from 0 (highest) to 15 (lowest). */
+#define EVTCHN_FIFO_PRIORITY_MAX 0
+#define EVTCHN_FIFO_PRIORITY_DEFAULT 7
+#define EVTCHN_FIFO_PRIORITY_MIN 15
+
+#define EVTCHN_FIFO_MAX_QUEUES (EVTCHN_FIFO_PRIORITY_MIN + 1)
+
+typedef uint32_t event_word_t;
+
+#define EVTCHN_FIFO_PENDING 31
+#define EVTCHN_FIFO_MASKED 30
+#define EVTCHN_FIFO_LINKED 29
+#define EVTCHN_FIFO_BUSY 28
+
+#define EVTCHN_FIFO_LINK_BITS 17
+#define EVTCHN_FIFO_LINK_MASK ((1 << EVTCHN_FIFO_LINK_BITS) - 1)
+
+#define EVTCHN_FIFO_NR_CHANNELS (1 << EVTCHN_FIFO_LINK_BITS)
+
+struct evtchn_fifo_control_block {
+ uint32_t ready;
+ uint32_t _rsvd;
+ event_word_t head[EVTCHN_FIFO_MAX_QUEUES];
+};
+
#endif /* __XEN_PUBLIC_EVENT_CHANNEL_H__ */
diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
index 53ec4167bd0..0cd5ca333fa 100644
--- a/include/xen/interface/xen.h
+++ b/include/xen/interface/xen.h
@@ -281,12 +281,6 @@ struct multicall_entry {
};
DEFINE_GUEST_HANDLE_STRUCT(multicall_entry);
-/*
- * Event channel endpoints per domain:
- * 1024 if a long is 32 bits; 4096 if a long is 64 bits.
- */
-#define NR_EVENT_CHANNELS (sizeof(xen_ulong_t) * sizeof(xen_ulong_t) * 64)
-
struct vcpu_time_info {
/*
* Updates to the following values are preceded and followed