search for: get_system_memory

...const char *cpu_model = args->cpu_model; + const char *kernel_filename = args->kernel_filename; + const char *kernel_cmdline = args->kernel_cmdline; + const char *initrd_filename = args->initrd_filename; StrongARMState *s; DriveInfo *dinfo; MemoryRegion *sysmem = get_system_memory(); diff --git a/hw/dummy_m68k.c b/hw/dummy_m68k.c index 7cc7a99..f436a0c 100644 --- a/hw/dummy_m68k.c +++ b/hw/dummy_m68k.c @@ -16,11 +16,11 @@ /* Board init. */ -static void dummy_m68k_init(ram_addr_t ram_size, - const char *boot_device, - const char *...

...set, &pfn, 4) == 4) > { > ram_addr_t pa; > ram_addr_t addr; > int p = virtio_ldl_p(vdev, &pfn); > > pa = (ram_addr_t) p << VIRTIO_BALLOON_PFN_SHIFT; > offset += 4; > > /* FIXME: remove get_system_memory(), but how? */ > section = memory_region_find(get_system_memory(), pa, 1); > if (!int128_nz(section.size) || !memory_region_is_ram(section.mr)) > continue; > > > trace_virtio_balloon_handle_output(memory_region_name(section.mr), >...

...set, &pfn, 4) == 4) > { > ram_addr_t pa; > ram_addr_t addr; > int p = virtio_ldl_p(vdev, &pfn); > > pa = (ram_addr_t) p << VIRTIO_BALLOON_PFN_SHIFT; > offset += 4; > > /* FIXME: remove get_system_memory(), but how? */ > section = memory_region_find(get_system_memory(), pa, 1); > if (!int128_nz(section.size) || !memory_region_is_ram(section.mr)) > continue; > > > trace_virtio_balloon_handle_output(memory_region_name(section.mr), >...

...unsigned int p = virtio_ldl_p(vdev, &pfn); > hwaddr pa; > + size_t handle_size = BALLOON_PAGE_SIZE; > > pa = (hwaddr) p << VIRTIO_BALLOON_PFN_SHIFT; > offset += 4; > > - section = memory_region_find(get_system_memory(), pa, > - BALLOON_PAGE_SIZE); > - if (!section.mr) { > - trace_virtio_balloon_bad_addr(pa); > - continue; > - } > - if (!memory_region_is_ram(section.mr) || > -...

...to_buf(elem->out_sg, elem->out_num, offset, &pfn, 4) == 4) { ram_addr_t pa; ram_addr_t addr; int p = virtio_ldl_p(vdev, &pfn); pa = (ram_addr_t) p << VIRTIO_BALLOON_PFN_SHIFT; offset += 4; /* FIXME: remove get_system_memory(), but how? */ section = memory_region_find(get_system_memory(), pa, 1); if (!int128_nz(section.size) || !memory_region_is_ram(section.mr)) continue; trace_virtio_balloon_handle_output(memory_region_name(section.mr),...

> Subject: Re: [Qemu-devel] [RFC qemu 0/4] A PV solution for live migration > optimization > > On Fri, Mar 04, 2016 at 09:08:44AM +0000, Li, Liang Z wrote: > > > On Fri, Mar 04, 2016 at 01:52:53AM +0000, Li, Liang Z wrote: > > > > > I wonder if it would be possible to avoid the kernel changes > > > > > by parsing /proc/self/pagemap - if that

> Subject: Re: [Qemu-devel] [RFC qemu 0/4] A PV solution for live migration > optimization > > On Fri, Mar 04, 2016 at 09:08:44AM +0000, Li, Liang Z wrote: > > > On Fri, Mar 04, 2016 at 01:52:53AM +0000, Li, Liang Z wrote: > > > > > I wonder if it would be possible to avoid the kernel changes > > > > > by parsing /proc/self/pagemap - if that

...ram_addr_t pa; > > ram_addr_t addr; > > int p = virtio_ldl_p(vdev, &pfn); > > > > pa = (ram_addr_t) p << VIRTIO_BALLOON_PFN_SHIFT; > > offset += 4; > > > > /* FIXME: remove get_system_memory(), but how? */ > > section = memory_region_find(get_system_memory(), pa, 1); > > if (!int128_nz(section.size) || !memory_region_is_ram(section.mr)) > > continue; > > > > > > trace_virtio_balloon_handle_output(memory_regio...

...on_pbp_free(pbp); > + } > + > + mr_offset += BALLOON_PAGE_SIZE; > } > } > > @@ -345,7 +354,7 @@ static void virtio_balloon_handle_output(VirtIODevice *vdev, VirtQueue *vq) > offset += 4; > > section = memory_region_find(get_system_memory(), pa, > - BALLOON_PAGE_SIZE); > + BALLOON_PAGE_SIZE << s->current_pages_order); > if (!section.mr) { > trace_virtio_balloon_bad_addr(pa); > continue; > @...

When running on PowerPC, we don''t have native PIO support. There are a few hacks around to enable PIO access on PowerPC nevertheless. The most typical one is the isa-mmio device. It takes MMIO requests and converts them to PIO requests on the (QEMU internal) PIO bus. This however is not how real hardware works and it limits us in the ability to spawn eventfd''s on PIO ports