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[Qemu-devel] [PATCH v17 4/6] pvpanic: pass configurable ioport to seabio
From: |
Hu Tao |
Subject: |
[Qemu-devel] [PATCH v17 4/6] pvpanic: pass configurable ioport to seabios |
Date: |
Fri, 5 Apr 2013 14:36:20 +0800 |
This lets seabios patch the corresponding SSDT entry.
Signed-off-by: Hu Tao <address@hidden>
---
hw/fw_cfg.c | 8 +++++++-
hw/fw_cfg.h | 2 ++
hw/pvpanic.c | 14 ++++++++++++++
3 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/hw/fw_cfg.c b/hw/fw_cfg.c
index 63a1998..0bde436 100644
--- a/hw/fw_cfg.c
+++ b/hw/fw_cfg.c
@@ -489,11 +489,17 @@ FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t
data_port,
dev = qdev_create(NULL, "fw_cfg");
qdev_prop_set_uint32(dev, "ctl_iobase", ctl_port);
qdev_prop_set_uint32(dev, "data_iobase", data_port);
- qdev_init_nofail(dev);
d = SYS_BUS_DEVICE(dev);
s = DO_UPCAST(FWCfgState, busdev.qdev, dev);
+ if (!object_resolve_path("/machine/fw_cfg", NULL)) {
+ object_property_add_child(qdev_get_machine(), "fw_cfg", OBJECT(s),
+ NULL);
+ }
+
+ qdev_init_nofail(dev);
+
if (ctl_addr) {
sysbus_mmio_map(d, 0, ctl_addr);
}
diff --git a/hw/fw_cfg.h b/hw/fw_cfg.h
index 05c8df1..07cc941 100644
--- a/hw/fw_cfg.h
+++ b/hw/fw_cfg.h
@@ -1,6 +1,8 @@
#ifndef FW_CFG_H
#define FW_CFG_H
+#include "exec/hwaddr.h"
+
#define FW_CFG_SIGNATURE 0x00
#define FW_CFG_ID 0x01
#define FW_CFG_UUID 0x02
diff --git a/hw/pvpanic.c b/hw/pvpanic.c
index ff0a116..b3d10e2 100644
--- a/hw/pvpanic.c
+++ b/hw/pvpanic.c
@@ -18,6 +18,8 @@
#include <sysemu/sysemu.h>
#include <sysemu/kvm.h>
+#include "hw/fw_cfg.h"
+
/* The bit of supported pv event */
#define PVPANIC_F_PANICKED 0
@@ -79,10 +81,22 @@ static const MemoryRegionOps pvpanic_ops = {
static int pvpanic_isa_initfn(ISADevice *dev)
{
PVPanicState *s = ISA_PVPANIC_DEVICE(dev);
+ static bool port_configured;
+ void *fw_cfg;
memory_region_init_io(&s->io, &pvpanic_ops, s, "pvpanic", 1);
isa_register_ioport(dev, &s->io, s->ioport);
+ if (!port_configured) {
+ fw_cfg = object_resolve_path("/machine/fw_cfg", NULL);
+ if (fw_cfg) {
+ fw_cfg_add_file(fw_cfg, "etc/pvpanic-port",
+ g_memdup(&s->ioport, sizeof(s->ioport)),
+ sizeof(s->ioport));
+ port_configured = true;
+ }
+ }
+
return 0;
}
--
1.8.1.4
- [Qemu-devel] [PATCH v17 0/6] Add pvpanic device to deal with guest panic event, Hu Tao, 2013/04/05
- [Qemu-devel] [PATCH v17 2/6] add a new qevent: QEVENT_GUEST_PANICKED, Hu Tao, 2013/04/05
- [Qemu-devel] [PATCH v17 1/6] add a new runstate: RUN_STATE_GUEST_PANICKED, Hu Tao, 2013/04/05
- [Qemu-devel] [PATCH v17 4/6] pvpanic: pass configurable ioport to seabios,
Hu Tao <=
- [Qemu-devel] [PATCH v17 3/6] introduce a new qom device to deal with panicked event, Hu Tao, 2013/04/05
- [Qemu-devel] [PATCH v17 6/6] pvpanic: add document of pvpanic, Hu Tao, 2013/04/05
- [Qemu-devel] [PATCH v17 5/6] pvpanic: create pvpanic device by default, Hu Tao, 2013/04/05
- [Qemu-devel] [PATCH v17] Add pvpanic device driver, Hu Tao, 2013/04/05