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xen: Fold CONFIG_XEN_MAPCACHE into CONFIG_XEN

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Xen won't be enabled if there is no backend support available for the
host. And that also means the map cache will work. So drop the separate
config switch and move the required stubs over to xen-stub.c.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Jan Kiszka 2011-06-21 22:59:09 +02:00 • committed by Alexander Graf
parent e41d7c691a
commit 868bb33faa
4 changed files with 9 additions and 58 deletions
Download patch file Download diff file Expand all files Collapse all files

16
exec.c
View file

@ -2953,7 +2953,7 @@ ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name,
abort();
}
#else
if (xen_mapcache_enabled()) {
if (xen_enabled()) {
xen_ram_alloc(new_block->offset, size);
} else {
new_block->host = qemu_vmalloc(size);
@ -3019,7 +3019,7 @@ void qemu_ram_free(ram_addr_t addr)
#if defined(TARGET_S390X) && defined(CONFIG_KVM)
munmap(block->host, block->length);
#else
if (xen_mapcache_enabled()) {
if (xen_enabled()) {
xen_invalidate_map_cache_entry(block->host);
} else {
qemu_vfree(block->host);
@ -3112,7 +3112,7 @@ void *qemu_get_ram_ptr(ram_addr_t addr)
QLIST_REMOVE(block, next);
QLIST_INSERT_HEAD(&ram_list.blocks, block, next);
}
if (xen_mapcache_enabled()) {
if (xen_enabled()) {
/* We need to check if the requested address is in the RAM
* because we don't want to map the entire memory in QEMU.
* In that case just map until the end of the page.
@ -3143,7 +3143,7 @@ void *qemu_safe_ram_ptr(ram_addr_t addr)
QLIST_FOREACH(block, &ram_list.blocks, next) {
if (addr - block->offset < block->length) {
if (xen_mapcache_enabled()) {
if (xen_enabled()) {
/* We need to check if the requested address is in the RAM
* because we don't want to map the entire memory in QEMU.
* In that case just map until the end of the page.
@ -3169,9 +3169,9 @@ void *qemu_safe_ram_ptr(ram_addr_t addr)
* but takes a size argument */
void *qemu_ram_ptr_length(target_phys_addr_t addr, target_phys_addr_t *size)
{
if (xen_mapcache_enabled())
if (xen_enabled()) {
return xen_map_cache(addr, *size, 1);
else {
} else {
RAMBlock *block;
QLIST_FOREACH(block, &ram_list.blocks, next) {
@ -3200,7 +3200,7 @@ int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr)
RAMBlock *block;
uint8_t *host = ptr;
if (xen_mapcache_enabled()) {
if (xen_enabled()) {
*ram_addr = xen_ram_addr_from_mapcache(ptr);
return 0;
}
@ -4115,7 +4115,7 @@ void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
access_len -= l;
}
}
if (xen_mapcache_enabled()) {
if (xen_enabled()) {
xen_invalidate_map_cache_entry(buffer);
}
return;