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pc: exit QEMU if number of slots more than supported 256 

... which is imposed by current naming scheme of ACPI memory devices.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2014-06-02 15:25:09 +02:00 committed by Michael S. Tsirkin
parent 619d11e463
commit a0cc8856e8
2 changed files with 12 additions and 0 deletions
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6
hw/i386/pc.c
View File

@ -1230,6 +1230,12 @@ FWCfgState *pc_memory_init(MemoryRegion *system_memory,
ram_addr_t hotplug_mem_size =
machine->maxram_size - ram_size;
if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
error_report("unsupported amount of memory slots: %"PRIu64,
machine->ram_slots);
exit(EXIT_FAILURE);
}
pcms->hotplug_memory_base =
ROUND_UP(0x100000000ULL + above_4g_mem_size, 1ULL << 30);

6
include/hw/acpi/acpi.h
View File

@ -26,6 +26,12 @@
#include "exec/memory.h"
#include "hw/irq.h"
/*
* current device naming scheme supports
* only upto 256 memory devices
*/
#define ACPI_MAX_RAM_SLOTS 256
/* from linux include/acpi/actype.h */
/* Default ACPI register widths */