[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v5 12/50] multi-process: remote process initialization
From: |
Jagannathan Raman |
Subject: |
[PATCH v5 12/50] multi-process: remote process initialization |
Date: |
Mon, 24 Feb 2020 15:55:03 -0500 |
Adds the handler to process message from QEMU,
Initialize remote process main loop, handles SYNC_SYSMEM
message by updating its "system_memory" container using
shared file descriptors received from QEMU.
Signed-off-by: John G Johnson <address@hidden>
Signed-off-by: Elena Ufimtseva <address@hidden>
Signed-off-by: Jagannathan Raman <address@hidden>
---
v4 -> v5:
- We checked if we could use functions already defined in
util/main-loop.c instead of using g_main_loop_run. However,
we couldn't find a suitable function that's generic enough
to do this. All of them have emulator code embedded in them
which is not used by the remote process. We are therefore
not making any change to this patch
remote/remote-main.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 85 insertions(+)
diff --git a/remote/remote-main.c b/remote/remote-main.c
index ecf30e0..56315cd 100644
--- a/remote/remote-main.c
+++ b/remote/remote-main.c
@@ -12,6 +12,7 @@
#include "qemu-common.h"
#include <stdio.h>
+#include <unistd.h>
#include "qemu/module.h"
#include "remote/pcihost.h"
@@ -19,12 +20,96 @@
#include "hw/boards.h"
#include "hw/qdev-core.h"
#include "qemu/main-loop.h"
+#include "remote/memory.h"
+#include "io/mpqemu-link.h"
+#include "qapi/error.h"
+#include "qemu/main-loop.h"
+#include "sysemu/cpus.h"
+#include "qemu-common.h"
+#include "hw/pci/pci.h"
+#include "qemu/thread.h"
+#include "qemu/main-loop.h"
+#include "qemu/config-file.h"
+#include "sysemu/sysemu.h"
+#include "block/block.h"
+#include "exec/ramlist.h"
+
+static MPQemuLinkState *mpqemu_link;
+PCIDevice *remote_pci_dev;
+
+static void process_msg(GIOCondition cond, MPQemuChannel *chan)
+{
+ MPQemuMsg *msg = NULL;
+ Error *err = NULL;
+
+ if ((cond & G_IO_HUP) || (cond & G_IO_ERR)) {
+ goto finalize_loop;
+ }
+
+ msg = g_malloc0(sizeof(MPQemuMsg));
+
+ if (mpqemu_msg_recv(msg, chan) < 0) {
+ error_setg(&err, "Failed to receive message");
+ goto finalize_loop;
+ }
+
+ switch (msg->cmd) {
+ case INIT:
+ break;
+ case PCI_CONFIG_WRITE:
+ break;
+ case PCI_CONFIG_READ:
+ break;
+ default:
+ error_setg(&err, "Unknown command");
+ goto finalize_loop;
+ }
+
+ g_free(msg->data2);
+ g_free(msg);
+
+ return;
+
+finalize_loop:
+ if (err) {
+ error_report_err(err);
+ }
+ g_free(msg);
+ mpqemu_link_finalize(mpqemu_link);
+ mpqemu_link = NULL;
+}
int main(int argc, char *argv[])
{
+ Error *err = NULL;
+
module_call_init(MODULE_INIT_QOM);
+ bdrv_init_with_whitelist();
+
+ if (qemu_init_main_loop(&err)) {
+ error_report_err(err);
+ return -EBUSY;
+ }
+
+ qemu_init_cpu_loop();
+
+ page_size_init();
+
+ qemu_mutex_init(&ram_list.mutex);
+
current_machine = MACHINE(REMOTE_MACHINE(object_new(TYPE_REMOTE_MACHINE)));
+ mpqemu_link = mpqemu_link_create();
+ if (!mpqemu_link) {
+ printf("Could not create MPQemu link\n");
+ return -1;
+ }
+
+ mpqemu_init_channel(mpqemu_link, &mpqemu_link->com, STDIN_FILENO);
+ mpqemu_link_set_callback(mpqemu_link, process_msg);
+
+ mpqemu_start_coms(mpqemu_link);
+
return 0;
}
--
1.8.3.1
- [PATCH v5 02/50] multi-process: Refactor machine_init and exit notifiers, (continued)
- [PATCH v5 02/50] multi-process: Refactor machine_init and exit notifiers, Jagannathan Raman, 2020/02/24
- [PATCH v5 03/50] multi-process: add a command line option for debug file, Jagannathan Raman, 2020/02/24
- [PATCH v5 01/50] multi-process: memory: alloc RAM from file at offset, Jagannathan Raman, 2020/02/24
- [PATCH v5 05/50] multi-process: Add config option for multi-process QEMU, Jagannathan Raman, 2020/02/24
- [PATCH v5 07/50] multi-process: define mpqemu-link object, Jagannathan Raman, 2020/02/24
- [PATCH v5 09/50] multi-process: setup PCI host bridge for remote device, Jagannathan Raman, 2020/02/24
- [PATCH v5 06/50] multi-process: build system for remote device process, Jagannathan Raman, 2020/02/24
- [PATCH v5 08/50] multi-process: add functions to synchronize proxy and remote endpoints, Jagannathan Raman, 2020/02/24
- [PATCH v5 11/50] multi-process: setup memory manager for remote device, Jagannathan Raman, 2020/02/24
- [PATCH v5 10/50] multi-process: setup a machine object for remote device process, Jagannathan Raman, 2020/02/24
- [PATCH v5 12/50] multi-process: remote process initialization,
Jagannathan Raman <=
- [PATCH v5 14/50] mutli-process: build remote command line args, Jagannathan Raman, 2020/02/24
- [PATCH v5 13/50] multi-process: introduce proxy object, Jagannathan Raman, 2020/02/24
- [PATCH v5 15/50] multi-process: PCI BAR read/write handling for proxy & remote endpoints, Jagannathan Raman, 2020/02/24
- [PATCH v5 16/50] multi-process: Synchronize remote memory, Jagannathan Raman, 2020/02/24
- [PATCH v5 18/50] multi-process: configure remote side devices, Jagannathan Raman, 2020/02/24
- [PATCH v5 17/50] multi-process: create IOHUB object to handle irq, Jagannathan Raman, 2020/02/24
- [PATCH v5 20/50] multi-process: add qdev_proxy_add to create proxy devices, Jagannathan Raman, 2020/02/24
- [PATCH v5 19/50] multi-process: Retrieve PCI info from remote process, Jagannathan Raman, 2020/02/24
- [PATCH v5 21/50] multi-process: remote: add setup_devices msg processing, Jagannathan Raman, 2020/02/24
- [PATCH v5 23/50] multi-process: remote: add create_done condition, Jagannathan Raman, 2020/02/24