pc: Save size of RAM below 4GB

The ram_below_4g value will be useful in other places, such as the ACPI
table code, and other code that currently requires passing
below_4g_mem_size around in function arguments.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 6f0be37..348b15f 100644 (file)
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1072,6 +1072,7 @@ PcGuestInfo *pc_guest_info_init(ram_addr_t below_4g_mem_size,
     PcGuestInfo *guest_info = &guest_info_state->info;
     int i, j;
 
+    guest_info->ram_size_below_4g = below_4g_mem_size;
     guest_info->ram_size = below_4g_mem_size + above_4g_mem_size;
     guest_info->apic_id_limit = pc_apic_id_limit(max_cpus);
     guest_info->apic_xrupt_override = kvm_allows_irq0_override();

diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 92eabeb..3e1e81b 100644 (file)
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -35,7 +35,7 @@ typedef struct PcPciInfo {
 struct PcGuestInfo {
     bool has_pci_info;
     bool isapc_ram_fw;
-    hwaddr ram_size;
+    hwaddr ram_size, ram_size_below_4g;
     unsigned apic_id_limit;
     bool apic_xrupt_override;
     uint64_t numa_nodes;