so far we have used the agent to notify the guest of a request to change
the monitors configurations (heads) on the qxl device. This patch introduces
a new interrupt and new fields in the qxl rom to notify the guest about
a new request, similarly to how physical hardware notifies the driver.
To avoid overwriting the rom while the guest is reading it there is a
QXL_IO_CLIENT_MONITORS_CONFIG_DONE that is expected after each
interrupt notification.
A guest capability is added, the server will use the old (pass to agent)
behavior unless it is present.
---
spice/qxl_dev.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/spice/qxl_dev.h b/spice/qxl_dev.h
index 5de0eb8..d36465c 100644
--- a/spice/qxl_dev.h
+++ b/spice/qxl_dev.h
@@ -97,6 +97,7 @@ enum {
/* appended for qxl-4 */
QXL_IO_MONITORS_CONFIG_ASYNC,
QXL_IO_CAPABILITIES_SET,
+ QXL_IO_CLIENT_MONITORS_CONFIG_DONE,
QXL_IO_RANGE_SIZE
};
@@ -126,6 +127,13 @@ typedef struct SPICE_ATTR_PACKED QXLRect {
int32_t right;
} QXLRect;
+typedef struct SPICE_ATTR_PACKED QXLURect {
+ uint32_t top;
+ uint32_t left;
+ uint32_t bottom;
+ uint32_t right;
+} QXLURect;
+
/* qxl-1 compat: append only */
typedef struct SPICE_ATTR_PACKED QXLRom {
uint32_t magic;
@@ -152,6 +160,11 @@ typedef struct SPICE_ATTR_PACKED QXLRom {
/* appended for qxl-4 */
uint8_t client_present;
uint8_t client_capabilities[58];
+ struct {
+ uint16_t count;
+ uint8_t pad[2];
+ QXLURect heads[63];
+ } client_monitors_config;
} QXLRom;
/* qxl-1 compat: fixed */
@@ -235,6 +248,9 @@ SPICE_RING_DECLARE(QXLReleaseRing, uint64_t, QXL_RELEASE_RING_SIZE);
#define QXL_INTERRUPT_IO_CMD (1 << 2)
#define QXL_INTERRUPT_ERROR (1 << 3)
#define QXL_INTERRUPT_CLIENT (1 << 4)
+#define QXL_INTERRUPT_CLIENT_MONITORS_CONFIG (1 << 5)
+
+#define QXL_GUEST_CAP_CLIENT_MONITORS_CONFIG_ISR 0
/* qxl-1 compat: append only */
typedef struct SPICE_ATTR_PACKED QXLRam {
--
1.7.12
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