diff options
| author | Jun Nakajima <jun.nakajima@intel.com> | 2010-08-31 16:41:25 +0100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2011-05-08 10:10:01 +0200 |
| commit | 432d268c0552fd30c8be564f7ea2504a2b546101 (patch) | |
| tree | d74d75e9b70fd2ced0daf705062260dab19b40c4 /trace-events | |
| parent | 9c11a8ac886ccbb5f8e1b08e8ae12f045d783031 (diff) | |
| download | qemu-432d268c0552fd30c8be564f7ea2504a2b546101.tar.gz qemu-432d268c0552fd30c8be564f7ea2504a2b546101.tar.bz2 qemu-432d268c0552fd30c8be564f7ea2504a2b546101.zip | |
xen: Introduce the Xen mapcache
On IA32 host or IA32 PAE host, at present, generally, we can't create
an HVM guest with more than 2G memory, because generally it's almost
impossible for Qemu to find a large enough and consecutive virtual
address space to map an HVM guest's whole physical address space.
The attached patch fixes this issue using dynamic mapping based on
little blocks of memory.
Each call to qemu_get_ram_ptr makes a call to qemu_map_cache with the
lock option, so mapcache will not unmap these ram_ptr.
Blocks that do not belong to the RAM, but usually to a device ROM or to
a framebuffer, are handled in a separate function. So the whole RAMBlock
can be map.
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'trace-events')
| -rw-r--r-- | trace-events | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/trace-events b/trace-events index 4f965e2ebd..d703347d40 100644 --- a/trace-events +++ b/trace-events @@ -361,3 +361,13 @@ disable milkymist_uart_pulse_irq_tx(void) "Pulse IRQ TX" # hw/milkymist-vgafb.c disable milkymist_vgafb_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x" disable milkymist_vgafb_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x" + +# xen-all.c +disable xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: %#lx, size %#lx" + +# xen-mapcache.c +disable qemu_map_cache(uint64_t phys_addr) "want %#"PRIx64"" +disable qemu_remap_bucket(uint64_t index) "index %#"PRIx64"" +disable qemu_map_cache_return(void* ptr) "%p" +disable xen_map_block(uint64_t phys_addr, uint64_t size) "%#"PRIx64", size %#"PRIx64"" +disable xen_unmap_block(void* addr, unsigned long size) "%p, size %#lx" |