hw/hyperv/syndbg: common compilation unit

Signed-off-by: Pierrick Bouvier <[email protected]>

hw/hyperv/meson.build

@@ -1,6 +1,6 @@
 specific_ss.add(when: 'CONFIG_HYPERV', if_true: files('hyperv.c'))
 specific_ss.add(when: 'CONFIG_HYPERV_TESTDEV', if_true: files('hyperv_testdev.c'))
 system_ss.add(when: 'CONFIG_VMBUS', if_true: files('vmbus.c'))
-specific_ss.add(when: 'CONFIG_SYNDBG', if_true: files('syndbg.c'))
+system_ss.add(when: 'CONFIG_SYNDBG', if_true: files('syndbg.c'))
 specific_ss.add(when: 'CONFIG_HV_BALLOON', if_true: files('hv-balloon.c', 'hv-balloon-page_range_tree.c', 'hv-balloon-our_range_memslots.c'))
 system_ss.add(when: 'CONFIG_HV_BALLOON', if_false: files('hv-balloon-stub.c'))

hw/hyperv/syndbg.c

@@ -14,7 +14,7 @@
 #include "migration/vmstate.h"
 #include "hw/qdev-properties.h"
 #include "hw/loader.h"
-#include "cpu.h"
+#include "exec/target_page.h"
 #include "hw/hyperv/hyperv.h"
 #include "hw/hyperv/vmbus-bridge.h"
 #include "hw/hyperv/hyperv-proto.h"
@@ -188,7 +188,8 @@ static uint16_t handle_recv_msg(HvSynDbg *syndbg, uint64_t outgpa,
                                 uint64_t timeout, uint32_t *retrieved_count)
 {
     uint16_t ret;
-    uint8_t data_buf[TARGET_PAGE_SIZE - UDP_PKT_HEADER_SIZE];
+    const size_t buf_size = qemu_target_page_size() - UDP_PKT_HEADER_SIZE;
+    uint8_t *data_buf = g_alloca(buf_size);
     hwaddr out_len;
     void *out_data;
     ssize_t recv_byte_count;
@@ -201,7 +202,7 @@ static uint16_t handle_recv_msg(HvSynDbg *syndbg, uint64_t outgpa,
         recv_byte_count = 0;
     } else {
         recv_byte_count = recv(syndbg->socket, data_buf,
-                               MIN(sizeof(data_buf), count), MSG_WAITALL);
+                               MIN(buf_size, count), MSG_WAITALL);
         if (recv_byte_count == -1) {
             return HV_STATUS_INVALID_PARAMETER;
         }