From 6dad8260e82b69bd278685ee25209f5824360455 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 22 Jun 2018 13:28:42 +0100 Subject: [PATCH] xen: Don't use memory_region_init_ram_nomigrate() in pci_assign_dev_load_option_rom() 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 Signed-off-by: Peter Maydell --- hw/xen/xen_pt.h | 2 +- hw/xen/xen_pt_graphics.c | 2 +- hw/xen/xen_pt_load_rom.c | 6 +++--- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/xen/xen_pt.h b/hw/xen/xen_pt.h index aa39a9aa5f..dbee3308fd 100644 --- a/hw/xen/xen_pt.h +++ b/hw/xen/xen_pt.h @@ -319,7 +319,7 @@ static inline bool xen_pt_has_msix_mapping(XenPCIPassthroughState *s, int bar) } extern void *pci_assign_dev_load_option_rom(PCIDevice *dev, - struct Object *owner, int *size, + int *size, unsigned int domain, unsigned int bus, unsigned int slot, unsigned int function); diff --git a/hw/xen/xen_pt_graphics.c b/hw/xen/xen_pt_graphics.c index 0f4c8d77e2..135c8df1e7 100644 --- a/hw/xen/xen_pt_graphics.c +++ b/hw/xen/xen_pt_graphics.c @@ -132,7 +132,7 @@ int xen_pt_unregister_vga_regions(XenHostPCIDevice *dev) static void *get_vgabios(XenPCIPassthroughState *s, int *size, XenHostPCIDevice *dev) { - return pci_assign_dev_load_option_rom(&s->dev, OBJECT(&s->dev), size, + return pci_assign_dev_load_option_rom(&s->dev, size, dev->domain, dev->bus, dev->dev, dev->func); } diff --git a/hw/xen/xen_pt_load_rom.c b/hw/xen/xen_pt_load_rom.c index 71063c4d79..e6a86ca818 100644 --- a/hw/xen/xen_pt_load_rom.c +++ b/hw/xen/xen_pt_load_rom.c @@ -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);