diff options
| -rw-r--r-- | docs/memory.txt | 15 | ||||
| -rw-r--r-- | hw/display/vga.c | 2 | ||||
| -rw-r--r-- | hw/i386/kvmvapic.c | 2 | ||||
| -rw-r--r-- | hw/mips/gt64xxx_pci.c | 2 | ||||
| -rw-r--r-- | hw/misc/omap_gpmc.c | 2 | ||||
| -rw-r--r-- | hw/misc/vfio.c | 4 | ||||
| -rw-r--r-- | hw/ppc/ppc4xx_devs.c | 2 | ||||
| -rw-r--r-- | ioport.c | 2 | ||||
| -rw-r--r-- | memory.c | 1 |
9 files changed, 18 insertions, 14 deletions
diff --git a/docs/memory.txt b/docs/memory.txt index 5bdbdb3691..b12f1f049a 100644 --- a/docs/memory.txt +++ b/docs/memory.txt @@ -74,11 +74,16 @@ Region lifecycle ---------------- A region is created by one of the constructor functions (memory_region_init*()) -and destroyed by the destructor (memory_region_destroy()). In between, -a region can be added to an address space by using memory_region_add_subregion() -and removed using memory_region_del_subregion(). Region attributes may be -changed at any point; they take effect once the region becomes exposed to the -guest. +and attached to an object. It is then destroyed by object_unparent() or simply +when the parent object dies. + +In between, a region can be added to an address space +by using memory_region_add_subregion() and removed using +memory_region_del_subregion(). Destroying the region implicitly +removes the region from the address space. + +Region attributes may be changed at any point; they take effect once +the region becomes exposed to the guest. Overlapping regions and priority -------------------------------- diff --git a/hw/display/vga.c b/hw/display/vga.c index 68cfee222a..65dab8dbed 100644 --- a/hw/display/vga.c +++ b/hw/display/vga.c @@ -176,7 +176,7 @@ static void vga_update_memory_access(VGACommonState *s) if (s->has_chain4_alias) { memory_region_del_subregion(s->legacy_address_space, &s->chain4_alias); - memory_region_destroy(&s->chain4_alias); + object_unparent(OBJECT(&s->chain4_alias)); s->has_chain4_alias = false; s->plane_updated = 0xf; } diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c index cb855c7b79..ee959632a6 100644 --- a/hw/i386/kvmvapic.c +++ b/hw/i386/kvmvapic.c @@ -584,7 +584,7 @@ static int vapic_map_rom_writable(VAPICROMState *s) if (s->rom_mapped_writable) { memory_region_del_subregion(as, &s->rom); - memory_region_destroy(&s->rom); + object_unparent(OBJECT(&s->rom)); } /* grab RAM memory region (region @rom_paddr may still be pc.rom) */ diff --git a/hw/mips/gt64xxx_pci.c b/hw/mips/gt64xxx_pci.c index 22f63ce0c8..1f2fe5fab9 100644 --- a/hw/mips/gt64xxx_pci.c +++ b/hw/mips/gt64xxx_pci.c @@ -297,7 +297,7 @@ static void gt64120_pci_mapping(GT64120State *s) if (s->PCI0IO_length) { memory_region_del_subregion(get_system_memory(), &s->PCI0IO_mem); - memory_region_destroy(&s->PCI0IO_mem); + object_unparent(OBJECT(&s->PCI0IO_mem)); } /* Map new IO address */ s->PCI0IO_start = s->regs[GT_PCI0IOLD] << 21; diff --git a/hw/misc/omap_gpmc.c b/hw/misc/omap_gpmc.c index cddea241d4..fbbe2ff993 100644 --- a/hw/misc/omap_gpmc.c +++ b/hw/misc/omap_gpmc.c @@ -436,7 +436,7 @@ static void omap_gpmc_cs_unmap(struct omap_gpmc_s *s, int cs) } memory_region_del_subregion(get_system_memory(), &f->container); memory_region_del_subregion(&f->container, omap_gpmc_cs_memregion(s, cs)); - memory_region_destroy(&f->container); + object_unparent(OBJECT(&f->container)); } void omap_gpmc_reset(struct omap_gpmc_s *s) diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c index 0b9eba0c84..af9ae1fedf 100644 --- a/hw/misc/vfio.c +++ b/hw/misc/vfio.c @@ -2266,7 +2266,7 @@ static void vfio_vga_quirk_teardown(VFIODevice *vdev) while (!QLIST_EMPTY(&vdev->vga.region[i].quirks)) { VFIOQuirk *quirk = QLIST_FIRST(&vdev->vga.region[i].quirks); memory_region_del_subregion(&vdev->vga.region[i].mem, &quirk->mem); - memory_region_destroy(&quirk->mem); + object_unparent(OBJECT(&quirk->mem)); QLIST_REMOVE(quirk, next); g_free(quirk); } @@ -2290,7 +2290,7 @@ static void vfio_bar_quirk_teardown(VFIODevice *vdev, int nr) while (!QLIST_EMPTY(&bar->quirks)) { VFIOQuirk *quirk = QLIST_FIRST(&bar->quirks); memory_region_del_subregion(&bar->mem, &quirk->mem); - memory_region_destroy(&quirk->mem); + object_unparent(OBJECT(&quirk->mem)); QLIST_REMOVE(quirk, next); g_free(quirk); } diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c index 07f9d00ea7..405bbe718b 100644 --- a/hw/ppc/ppc4xx_devs.c +++ b/hw/ppc/ppc4xx_devs.c @@ -422,7 +422,7 @@ static void sdram_set_bcr(ppc4xx_sdram_t *sdram, &sdram->containers[n]); memory_region_del_subregion(&sdram->containers[n], &sdram->ram_memories[n]); - memory_region_destroy(&sdram->containers[n]); + object_unparent(OBJECT(&sdram->containers[n])); } *bcrp = bcr & 0xFFDEE001; if (enabled && (bcr & 0x00000001)) { @@ -154,7 +154,7 @@ void portio_list_destroy(PortioList *piolist) for (i = 0; i < piolist->nr; ++i) { mrpio = container_of(piolist->regions[i], MemoryRegionPortioList, mr); - memory_region_destroy(&mrpio->mr); + object_unparent(OBJECT(&mrpio->mr)); g_free(mrpio); } g_free(piolist->regions); @@ -1266,7 +1266,6 @@ static void memory_region_finalize(Object *obj) void memory_region_destroy(MemoryRegion *mr) { - object_unparent(OBJECT(mr)); } |