acpi: has_immutable_rsdp->!rsdp_in_ram

As comment in acpi-build.c notes, RSDP is not really immutable.  So it's
really a question of whether it's in RAM, name the variable accordingly.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>

hw/i386/acpi-build.c

@@ -1653,7 +1653,7 @@ void acpi_setup(PcGuestInfo *guest_info)
     fw_cfg_add_file(guest_info->fw_cfg, ACPI_BUILD_TPMLOG_FILE,
                     tables.tcpalog->data, acpi_data_len(tables.tcpalog));
 
-    if (guest_info->has_immutable_rsdp) {
+    if (!guest_info->rsdp_in_ram) {
         /*
          * Keep for compatibility with old machine types.
          * Though RSDP is small, its contents isn't immutable, so

hw/i386/pc_piix.c

@@ -60,7 +60,7 @@ static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
 
 static bool has_acpi_build = true;
-static bool has_immutable_rsdp;
+static bool rsdp_in_ram = true;
 static int legacy_acpi_table_size;
 static bool smbios_defaults = true;
 static bool smbios_legacy_mode;
@@ -169,7 +169,7 @@ static void pc_init1(MachineState *machine,
 
     guest_info->isapc_ram_fw = !pci_enabled;
     guest_info->has_reserved_memory = has_reserved_memory;
-    guest_info->has_immutable_rsdp = has_immutable_rsdp;
+    guest_info->rsdp_in_ram = rsdp_in_ram;
 
     if (smbios_defaults) {
         MachineClass *mc = MACHINE_GET_CLASS(machine);
@@ -312,7 +312,7 @@ static void pc_init_pci(MachineState *machine)
 
 static void pc_compat_2_2(MachineState *machine)
 {
-    has_immutable_rsdp = true;
+    rsdp_in_ram = false;
     x86_cpu_compat_set_features("kvm64", FEAT_1_EDX, 0, CPUID_VME);
     x86_cpu_compat_set_features("kvm32", FEAT_1_EDX, 0, CPUID_VME);
     x86_cpu_compat_set_features("Conroe", FEAT_1_EDX, 0, CPUID_VME);

hw/i386/pc_q35.c

@@ -50,7 +50,7 @@
 #define MAX_SATA_PORTS     6
 
 static bool has_acpi_build = true;
-static bool has_immutable_rsdp;
+static bool rsdp_in_ram = true;
 static bool smbios_defaults = true;
 static bool smbios_legacy_mode;
 static bool smbios_uuid_encoded = true;
@@ -155,7 +155,7 @@ static void pc_q35_init(MachineState *machine)
     guest_info->isapc_ram_fw = false;
     guest_info->has_acpi_build = has_acpi_build;
     guest_info->has_reserved_memory = has_reserved_memory;
-    guest_info->has_immutable_rsdp = has_immutable_rsdp;
+    guest_info->rsdp_in_ram = rsdp_in_ram;
 
     /* Migration was not supported in 2.0 for Q35, so do not bother
      * with this hack (see hw/i386/acpi-build.c).
@@ -291,7 +291,7 @@ static void pc_q35_init(MachineState *machine)
 
 static void pc_compat_2_2(MachineState *machine)
 {
-    has_immutable_rsdp = true;
+    rsdp_in_ram = false;
     x86_cpu_compat_set_features("kvm64", FEAT_1_EDX, 0, CPUID_VME);
     x86_cpu_compat_set_features("kvm32", FEAT_1_EDX, 0, CPUID_VME);
     x86_cpu_compat_set_features("Conroe", FEAT_1_EDX, 0, CPUID_VME);

include/hw/i386/pc.h

@@ -104,7 +104,7 @@ struct PcGuestInfo {
     int legacy_acpi_table_size;
     bool has_acpi_build;
     bool has_reserved_memory;
-    bool has_immutable_rsdp;
+    bool rsdp_in_ram;
 };
 
 /* parallel.c */