Mailing List Archive

Undo the private implementation of qemu_ram_alloc(); use the global one
(which calls right back into xen_ram_alloc()).

Signed-off-by: Avi Kivity <avi@redhat.com>
---
xen-all.c | 41 ++++++++++++++++++++++-------------------
1 files changed, 22 insertions(+), 19 deletions(-)

diff --git a/xen-all.c b/xen-all.c
index b441fc1..bd89889 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -16,6 +16,7 @@
#include "range.h"
#include "xen-mapcache.h"
#include "trace.h"
+#include "exec-memory.h"

#include <xen/hvm/ioreq.h>
#include <xen/hvm/params.h>
@@ -31,6 +32,8 @@
do { } while (0)
#endif

+static MemoryRegion ram_memory, ram_640k, ram_lo, ram_hi;
+
/* Compatibility with older version */
#if __XEN_LATEST_INTERFACE_VERSION__ < 0x0003020a
static inline uint32_t xen_vcpu_eport(shared_iopage_t *shared_page, int i)
@@ -137,27 +140,18 @@ static void xen_set_irq(void *opaque, int irq, int level)

static void xen_ram_init(ram_addr_t ram_size)
{
- RAMBlock *new_block;
+ MemoryRegion *sysmem = get_system_memory();
ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
+ ram_addr_t block_len;

- new_block = g_malloc0(sizeof (*new_block));
- pstrcpy(new_block->idstr, sizeof (new_block->idstr), "xen.ram");
- new_block->host = NULL;
- new_block->offset = 0;
- new_block->length = ram_size;
+ block_len = ram_size;
if (ram_size >= HVM_BELOW_4G_RAM_END) {
/* Xen does not allocate the memory continuously, and keep a hole at
* HVM_BELOW_4G_MMIO_START of HVM_BELOW_4G_MMIO_LENGTH
*/
- new_block->length += HVM_BELOW_4G_MMIO_LENGTH;
+ block_len += HVM_BELOW_4G_MMIO_LENGTH;
}
-
- QLIST_INSERT_HEAD(&ram_list.blocks, new_block, next);
-
- ram_list.phys_dirty = g_realloc(ram_list.phys_dirty,
- new_block->length >> TARGET_PAGE_BITS);
- memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS),
- 0xff, new_block->length >> TARGET_PAGE_BITS);
+ memory_region_init_ram(&ram_memory, NULL, "xen.ram", block_len);

if (ram_size >= HVM_BELOW_4G_RAM_END) {
above_4g_mem_size = ram_size - HVM_BELOW_4G_RAM_END;
@@ -166,18 +160,23 @@ static void xen_ram_init(ram_addr_t ram_size)
below_4g_mem_size = ram_size;
}

- cpu_register_physical_memory(0, 0xa0000, 0);
+ memory_region_init_alias(&ram_640k, "xen.ram.640k",
+ &ram_memory, 0, 0xa0000);
+ memory_region_add_subregion(sysmem, 0, &ram_640k);
/* Skip of the VGA IO memory space, it will be registered later by the VGA
* emulated device.
*
* The area between 0xc0000 and 0x100000 will be used by SeaBIOS to load
* the Options ROM, so it is registered here as RAM.
*/
- cpu_register_physical_memory(0xc0000, below_4g_mem_size - 0xc0000,
- 0xc0000);
+ memory_region_init_alias(&ram_lo, "xen.ram.lo",
+ &ram_memory, 0xc0000, below_4g_mem_size - 0xc0000);
+ memory_region_add_subregion(sysmem, 0xc0000, &ram_lo);
if (above_4g_mem_size > 0) {
- cpu_register_physical_memory(0x100000000ULL, above_4g_mem_size,
- 0x100000000ULL);
+ memory_region_init_alias(&ram_hi, "xen.ram.hi",
+ &ram_memory, 0x100000000ULL,
+ above_4g_mem_size);
+ memory_region_add_subregion(sysmem, 0x100000000ULL, &ram_hi);
}
}

@@ -187,6 +186,10 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
xen_pfn_t *pfn_list;
int i;

+ if (mr == &ram_memory) {
+ return;
+ }
+
trace_xen_ram_alloc(ram_addr, size);

nr_pfn = size >> TARGET_PAGE_BITS;
--
1.7.7.1


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