8:32 a.m.
From: David Hildenbrand <david(a)redhat.com>
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.
We will factor out tracing of the address separately in a follow-up
patch.
Reviewed-by: David Gibson <david(a)gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo(a)redhat.com>
Signed-off-by: David Hildenbrand <david(a)redhat.com>
Message-Id: <20181005092024.14344-14-david(a)redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost(a)redhat.com>
---
include/hw/mem/memory-device.h | 5 ++---
hw/mem/memory-device.c | 32 +++++++++++++++++++++++++++++---
hw/mem/pc-dimm.c | 15 +++------------
3 files changed, 34 insertions(+), 18 deletions(-)
diff --git a/include/hw/mem/memory-device.h b/include/hw/mem/memory-device.h
index ed7cf5bf4b..d92acd2425 100644
--- a/include/hw/mem/memory-device.h
+++ b/include/hw/mem/memory-device.h
@@ -99,9 +99,8 @@ 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);
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index 07749bab69..aa4ddd5918 100644
--- a/hw/mem/memory-device.c
+++ b/hw/mem/memory-device.c
@@ -93,9 +93,10 @@ 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;
@@ -247,6 +248,31 @@ 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 4a15091734..b2959bcf0e 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -32,10 +32,8 @@ static int pc_dimm_get_free_slot(const int *hint, int max_slots, Error
**errp);
void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
const uint64_t *legacy_align, Error **errp)
{
- MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(dimm);
Error *local_err = NULL;
- MemoryRegion *mr;
- uint64_t addr, align;
+ uint64_t addr;
int slot;
slot = object_property_get_int(OBJECT(dimm), PC_DIMM_SLOT_PROP,
@@ -49,22 +47,15 @@ void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
&error_abort);
trace_mhp_pc_dimm_assigned_slot(slot);
- mr = mdc->get_memory_region(MEMORY_DEVICE(dimm), &local_err);
+ memory_device_pre_plug(MEMORY_DEVICE(dimm), 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(dimm), 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(dimm), addr, PC_DIMM_ADDR_PROP,
- &error_abort);
out:
error_propagate(errp, local_err);
}
--
2.18.0.rc1.1.g3f1ff2140