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[Qemu-devel] [PATCH v2 09/20] memory-device: complete factoring out pre_
From: |
David Hildenbrand |
Subject: |
[Qemu-devel] [PATCH v2 09/20] memory-device: complete factoring out pre_plug handling |
Date: |
Wed, 29 Aug 2018 17:36:13 +0200 |
With all required memory device class functions in place, we can factor
out pre_plug handling of memory devices. Take proper care of errors. We
still have to carry along legacy_align required for pc compatibility
handling.
Signed-off-by: David Hildenbrand <address@hidden>
---
hw/mem/memory-device.c | 32 +++++++++++++++++++++++++++++---
hw/mem/pc-dimm.c | 16 +++-------------
include/hw/mem/memory-device.h | 5 ++---
3 files changed, 34 insertions(+), 19 deletions(-)
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index 3bd30d98bb..ec9d175a2c 100644
--- a/hw/mem/memory-device.c
+++ b/hw/mem/memory-device.c
@@ -96,9 +96,10 @@ static void memory_device_check_addable(MachineState *ms,
uint64_t size,
}
-uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint,
- uint64_t align, uint64_t size,
- Error **errp)
+static uint64_t memory_device_get_free_addr(MachineState *ms,
+ const uint64_t *hint,
+ uint64_t align, uint64_t size,
+ Error **errp)
{
uint64_t address_space_start, address_space_end;
GSList *list = NULL, *item;
@@ -252,6 +253,31 @@ uint64_t get_plugged_memory_size(void)
return size;
}
+void memory_device_pre_plug(MemoryDeviceState *md, MachineState *ms,
+ const uint64_t *legacy_align, Error **errp)
+{
+ const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md);
+ Error *local_err = NULL;
+ uint64_t addr, align;
+ MemoryRegion *mr;
+
+ mr = mdc->get_memory_region(md, &local_err);
+ if (local_err) {
+ goto out;
+ }
+
+ align = legacy_align ? *legacy_align : memory_region_get_alignment(mr);
+ addr = mdc->get_addr(md);
+ addr = memory_device_get_free_addr(ms, !addr ? NULL : &addr, align,
+ memory_region_size(mr), &local_err);
+ if (local_err) {
+ goto out;
+ }
+ mdc->set_addr(md, addr, &local_err);
+out:
+ error_propagate(errp, local_err);
+}
+
void memory_device_plug_region(MachineState *ms, MemoryRegion *mr,
uint64_t addr)
{
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index d4e8a415bf..0d0072a7e8 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -32,11 +32,8 @@ static int pc_dimm_get_free_slot(const int *hint, int
max_slots, Error **errp);
void pc_dimm_pre_plug(DeviceState *dev, MachineState *machine,
const uint64_t *legacy_align, Error **errp)
{
- PCDIMMDevice *dimm = PC_DIMM(dev);
- PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
Error *local_err = NULL;
- MemoryRegion *mr;
- uint64_t addr, align;
+ uint64_t addr;
int slot;
slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP,
@@ -49,22 +46,15 @@ void pc_dimm_pre_plug(DeviceState *dev, MachineState
*machine,
object_property_set_int(OBJECT(dev), slot, PC_DIMM_SLOT_PROP,
&error_abort);
trace_mhp_pc_dimm_assigned_slot(slot);
- mr = ddc->get_memory_region(dimm, &local_err);
+ memory_device_pre_plug(MEMORY_DEVICE(dev), machine, legacy_align,
+ &local_err);
if (local_err) {
goto out;
}
- align = legacy_align ? *legacy_align : memory_region_get_alignment(mr);
addr = object_property_get_uint(OBJECT(dev), PC_DIMM_ADDR_PROP,
&error_abort);
- addr = memory_device_get_free_addr(machine, !addr ? NULL : &addr, align,
- memory_region_size(mr), &local_err);
- if (local_err) {
- goto out;
- }
trace_mhp_pc_dimm_assigned_address(addr);
- object_property_set_uint(OBJECT(dev), addr, PC_DIMM_ADDR_PROP,
- &error_abort);
out:
error_propagate(errp, local_err);
}
diff --git a/include/hw/mem/memory-device.h b/include/hw/mem/memory-device.h
index 148f32743f..dd582f9125 100644
--- a/include/hw/mem/memory-device.h
+++ b/include/hw/mem/memory-device.h
@@ -56,9 +56,8 @@ typedef struct MemoryDeviceClass {
MemoryDeviceInfoList *qmp_memory_device_list(void);
uint64_t get_plugged_memory_size(void);
-uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint,
- uint64_t align, uint64_t size,
- Error **errp);
+void memory_device_pre_plug(MemoryDeviceState *md, MachineState *ms,
+ const uint64_t *legacy_align, Error **errp);
void memory_device_plug_region(MachineState *ms, MemoryRegion *mr,
uint64_t addr);
void memory_device_unplug_region(MachineState *ms, MemoryRegion *mr);
--
2.17.1
- [Qemu-devel] [PATCH v2 02/20] memory-device: use memory device terminology in error messages, (continued)
- [Qemu-devel] [PATCH v2 02/20] memory-device: use memory device terminology in error messages, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 01/20] memory-device: fix error message when hinted address is too small, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 03/20] memory-device: introduce separate config option, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 04/20] memory-device: get_region_size()/get_plugged_size() might fail, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 05/20] memory-device: convert get_region_size() to get_memory_region(), David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 06/20] memory-device: document MemoryDeviceClass, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 07/20] memory-device: add device class function set_addr(), David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 08/20] pc-dimm: implement memory device class function set_addr(), David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 09/20] memory-device: complete factoring out pre_plug handling,
David Hildenbrand <=
- [Qemu-devel] [PATCH v2 10/20] memory-device: complete factoring out plug handling, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 11/20] memory-device: complete factoring out unplug handling, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 12/20] memory-device: trace when pre_assigning/assigning/unassigning addresses, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 13/20] hw/acpi-build: only indicate nvdimm and pc-dimm, David Hildenbrand, 2018/08/29
- [Qemu-devel] [PATCH v2 14/20] memory-device: ids of virtio based devices are special, David Hildenbrand, 2018/08/29