spice-protocol/0002-Add-new-client_present-and-client-capabilities-field.patch

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2012-09-06 16:16:55 +00:00
From 361fd166b26b4450617b1f7175be9aaa7d8f6a7e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B8ren=20Sandmann=20Pedersen?= <ssp@redhat.com>
Date: Fri, 24 Aug 2012 17:53:13 -0400
Subject: [PATCH 2/2] Add new client_present and client capabilities fields to QXLRom
The client_present field is a byte that is set of non-zero when a
client is connected and to zero when no client is connected.
The client_capabilities[58] array contains 464 bits that indicate the
capabilities of the client. Each bit corresponds to a
SPICE_DISPLAY_CAP_* capability. In particular, if the client has
capability C, then bit (C % 8) in byte (C / 8) is set. The capability
bits only have a defined meaning when a client is connected, ie., when
client_present is non-zero. The number 58 was chosen to fill out a
cache line in QXLRom.
A new QXL_INTERRUPT_CLIENT interrupt is defined, which will be raised
whenever a client connects or disconnects.
---
spice/qxl_dev.h | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/spice/qxl_dev.h b/spice/qxl_dev.h
index 1292767..50784dc 100644
--- a/spice/qxl_dev.h
+++ b/spice/qxl_dev.h
@@ -148,7 +148,9 @@ typedef struct SPICE_ATTR_PACKED QXLRom {
uint8_t slot_gen_bits;
uint8_t slot_id_bits;
uint8_t slot_generation;
- uint8_t padding[3]; /* Padding to 32bit align */
+ /* appended for qxl-4 */
+ uint8_t client_present;
+ uint8_t client_capabilities[58];
} QXLRom;
/* qxl-1 compat: fixed */
@@ -231,6 +233,7 @@ SPICE_RING_DECLARE(QXLReleaseRing, uint64_t, QXL_RELEASE_RING_SIZE);
#define QXL_INTERRUPT_CURSOR (1 << 1)
#define QXL_INTERRUPT_IO_CMD (1 << 2)
#define QXL_INTERRUPT_ERROR (1 << 3)
+#define QXL_INTERRUPT_CLIENT (1 << 4)
/* qxl-1 compat: append only */
typedef struct SPICE_ATTR_PACKED QXLRam {
--
1.7.4