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authorElena Ufimtseva <elena.ufimtseva@oracle.com>2021-01-29 11:46:16 -0500
committerStefan Hajnoczi <stefanha@redhat.com>2021-02-10 09:23:28 +0000
commit11ab872588335918ddc83c73957077bb85a38a6d (patch)
treecded7359c1b1b5493739e1485ef91d9c49de0ebe /hw/remote/mpqemu-link.c
parente7b2c9eaa258f9ba647fa81aaab344ddd82d0ecc (diff)
downloadfocaccia-qemu-11ab872588335918ddc83c73957077bb85a38a6d.tar.gz
focaccia-qemu-11ab872588335918ddc83c73957077bb85a38a6d.zip
multi-process: Forward PCI config space acceses to the remote process
The Proxy Object sends the PCI config space accesses as messages
to the remote process over the communication channel

Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: d3c94f4618813234655356c60e6f0d0362ff42d6.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw/remote/mpqemu-link.c')
-rw-r--r--hw/remote/mpqemu-link.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/remote/mpqemu-link.c b/hw/remote/mpqemu-link.c
index f5e9e01923..b45f325686 100644
--- a/hw/remote/mpqemu-link.c
+++ b/hw/remote/mpqemu-link.c
@@ -207,7 +207,7 @@ uint64_t mpqemu_msg_send_and_await_reply(MPQemuMsg *msg, PCIProxyDev *pdev,
         return ret;
     }
 
-    if (!mpqemu_msg_valid(&msg_reply)) {
+    if (!mpqemu_msg_valid(&msg_reply) || msg_reply.cmd != MPQEMU_CMD_RET) {
         error_setg(errp, "ERROR: Invalid reply received for command %d",
                          msg->cmd);
         return ret;
@@ -242,6 +242,12 @@ bool mpqemu_msg_valid(MPQemuMsg *msg)
             return false;
         }
         break;
+    case MPQEMU_CMD_PCI_CFGWRITE:
+    case MPQEMU_CMD_PCI_CFGREAD:
+        if (msg->size != sizeof(PciConfDataMsg)) {
+            return false;
+        }
+        break;
     default:
         break;
     }