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xen-hvm: Fix xen_hvm_init() to adjust pc memory layout

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This is just below_4g_mem_size and above_4g_mem_size which is used later in QEMU.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Don Slutz <dslutz@verizon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Don Slutz 2014-06-19 21:40:24 -04:00 • committed by Michael S. Tsirkin
parent 20de98aff5
commit 3c2a96699e
5 changed files with 49 additions and 41 deletions
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24
xen-hvm.c
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@ -155,10 +155,11 @@ qemu_irq *xen_interrupt_controller_init(void)
/* Memory Ops */
static void xen_ram_init(ram_addr_t ram_size, MemoryRegion **ram_memory_p)
static void xen_ram_init(ram_addr_t *below_4g_mem_size,
ram_addr_t *above_4g_mem_size,
ram_addr_t ram_size, MemoryRegion **ram_memory_p)
{
MemoryRegion *sysmem = get_system_memory();
ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
ram_addr_t block_len;
block_len = ram_size;
@ -173,10 +174,11 @@ static void xen_ram_init(ram_addr_t ram_size, MemoryRegion **ram_memory_p)
vmstate_register_ram_global(&ram_memory);
if (ram_size >= HVM_BELOW_4G_RAM_END) {
above_4g_mem_size = ram_size - HVM_BELOW_4G_RAM_END;
below_4g_mem_size = HVM_BELOW_4G_RAM_END;
*above_4g_mem_size = ram_size - HVM_BELOW_4G_RAM_END;
*below_4g_mem_size = HVM_BELOW_4G_RAM_END;
} else {
below_4g_mem_size = ram_size;
*above_4g_mem_size = 0;
*below_4g_mem_size = ram_size;
}
memory_region_init_alias(&ram_640k, NULL, "xen.ram.640k",
@ -189,12 +191,13 @@ static void xen_ram_init(ram_addr_t ram_size, MemoryRegion **ram_memory_p)
* the Options ROM, so it is registered here as RAM.
*/
memory_region_init_alias(&ram_lo, NULL, "xen.ram.lo",
&ram_memory, 0xc0000, below_4g_mem_size - 0xc0000);
&ram_memory, 0xc0000,
*below_4g_mem_size - 0xc0000);
memory_region_add_subregion(sysmem, 0xc0000, &ram_lo);
if (above_4g_mem_size > 0) {
if (*above_4g_mem_size > 0) {
memory_region_init_alias(&ram_hi, NULL, "xen.ram.hi",
&ram_memory, 0x100000000ULL,
above_4g_mem_size);
*above_4g_mem_size);
memory_region_add_subregion(sysmem, 0x100000000ULL, &ram_hi);
}
}
@ -958,7 +961,8 @@ static void xen_wakeup_notifier(Notifier *notifier, void *data)
xc_set_hvm_param(xen_xc, xen_domid, HVM_PARAM_ACPI_S_STATE, 0);
}
int xen_hvm_init(MemoryRegion **ram_memory)
int xen_hvm_init(ram_addr_t *below_4g_mem_size, ram_addr_t *above_4g_mem_size,
MemoryRegion **ram_memory)
{
int i, rc;
unsigned long ioreq_pfn;
@ -1036,7 +1040,7 @@ int xen_hvm_init(MemoryRegion **ram_memory)
/* Init RAM management */
xen_map_cache_init(xen_phys_offset_to_gaddr, state);
xen_ram_init(ram_size, ram_memory);
xen_ram_init(below_4g_mem_size, above_4g_mem_size, ram_size, ram_memory);
qemu_add_vm_change_state_handler(xen_hvm_change_state_handler, state);