motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-06 17:23:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

xen: Don't use memory_region_init_ram_nomigrate() in pci_assign_dev_load_option_rom()

Browse source 
The xen pci_assign_dev_load_option_rom() currently creates a RAM
memory region with memory_region_init_ram_nomigrate(), and then
manually registers it with vmstate_register_ram(). In fact for
its only callsite, the 'owner' pointer we use for the init call
and the '&dev->qdev' pointer we use for the vmstate_register_ram()
call refer to the same object. Simplify the function to only
take a pointer to the device once instead of twice, and use
memory_region_init_ram() which automatically does the vmstate
register for us.

Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-06-22 13:28:42 +01:00
parent b8d880ba6d
commit 6dad8260e8
3 changed files with 5 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

6
hw/xen/xen_pt_load_rom.c
View file

@ -19,7 +19,7 @@
* load the corresponding ROM data to RAM. If an error occurs while loading an
* option ROM, we just ignore that option ROM and continue with the next one.
*/
void *pci_assign_dev_load_option_rom(PCIDevice *dev, struct Object *owner,
void *pci_assign_dev_load_option_rom(PCIDevice *dev,
int *size, unsigned int domain,
unsigned int bus, unsigned int slot,
unsigned int function)
@ -29,6 +29,7 @@ void *pci_assign_dev_load_option_rom(PCIDevice *dev, struct Object *owner,
uint8_t val;
struct stat st;
void *ptr = NULL;
Object *owner = OBJECT(dev);
/* If loading ROM from file, pci handles it */
if (dev->romfile || !dev->rom_bar) {
@ -59,8 +60,7 @@ void *pci_assign_dev_load_option_rom(PCIDevice *dev, struct Object *owner,
fseek(fp, 0, SEEK_SET);
snprintf(name, sizeof(name), "%s.rom", object_get_typename(owner));
memory_region_init_ram_nomigrate(&dev->rom, owner, name, st.st_size, &error_abort);
vmstate_register_ram(&dev->rom, &dev->qdev);
memory_region_init_ram(&dev->rom, owner, name, st.st_size, &error_abort);
ptr = memory_region_get_ram_ptr(&dev->rom);
memset(ptr, 0xff, st.st_size);