[Qemu-devel] [PATCH 14/16] acpi: Use PCMachineClass fields directly

[Eduardo Habkost <ehabkost@redhat.com>]

Remove the fields: legacy_acpi_table_size, has_acpi_build,
has_reserved_memory, and rsdp_in_ram from PcGuestInfo, and let
the ACPI code use the PCMachineClass fields directly.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 hw/i386/acpi-build.c | 11 ++++++-----
 hw/i386/pc.c         |  6 +++---
 hw/i386/pc_piix.c    |  9 +--------
 hw/i386/pc_q35.c     | 11 +----------
 include/hw/i386/pc.h |  4 ----
 5 files changed, 11 insertions(+), 30 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index efc4151..7771be7 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1686,6 +1686,7 @@ static
 void acpi_build(PCMachineState *pcms, AcpiBuildTables *tables)
 {
     PcGuestInfo *guest_info = &pcms->acpi_guest_info;
+    PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
     GArray *table_offsets;
     unsigned facs, ssdt, dsdt, rsdt;
     AcpiCpuInfo cpu;
@@ -1799,12 +1800,12 @@ void acpi_build(PCMachineState *pcms, AcpiBuildTables *tables)
      *
      * All this is for PIIX4, since QEMU 2.0 didn't support Q35 migration.
      */
-    if (guest_info->legacy_acpi_table_size) {
+    if (pcmc->legacy_acpi_table_size) {
         /* Subtracting aml_len gives the size of fixed tables.  Then add the
          * size of the PIIX4 DSDT/SSDT in QEMU 2.0.
          */
         int legacy_aml_len =
-            guest_info->legacy_acpi_table_size +
+            pcmc->legacy_acpi_table_size +
             ACPI_BUILD_LEGACY_CPU_AML_SIZE * max_cpus;
         int legacy_table_size =
             ROUND_UP(tables_blob->len - aml_len + legacy_aml_len,
@@ -1896,7 +1897,7 @@ static const VMStateDescription vmstate_acpi_build = {
 
 void acpi_setup(PCMachineState *pcms)
 {
-    PcGuestInfo *guest_info = &pcms->acpi_guest_info;
+    PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
     AcpiBuildTables tables;
     AcpiBuildState *build_state;
 
@@ -1905,7 +1906,7 @@ void acpi_setup(PCMachineState *pcms)
         return;
     }
 
-    if (!guest_info->has_acpi_build) {
+    if (!pcmc->has_acpi_build) {
         ACPI_BUILD_DPRINTF("ACPI build disabled. Bailing out.\n");
         return;
     }
@@ -1936,7 +1937,7 @@ void acpi_setup(PCMachineState *pcms)
     fw_cfg_add_file(pcms->fw_cfg, ACPI_BUILD_TPMLOG_FILE,
                     tables.tcpalog->data, acpi_data_len(tables.tcpalog));
 
-    if (!guest_info->rsdp_in_ram) {
+    if (!pcmc->rsdp_in_ram) {
         /*
          * Keep for compatibility with old machine types.
          * Though RSDP is small, its contents isn't immutable, so
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 82025e2..cdfdd52 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1313,7 +1313,7 @@ FWCfgState *pc_memory_init(PCMachineState *pcms,
         e820_add_entry(0x100000000ULL, pcms->above_4g_mem_size, E820_RAM);
     }
 
-    if (!guest_info->has_reserved_memory &&
+    if (!pcmc->has_reserved_memory &&
         (machine->ram_slots ||
          (machine->maxram_size > machine->ram_size))) {
         MachineClass *mc = MACHINE_GET_CLASS(machine);
@@ -1324,7 +1324,7 @@ FWCfgState *pc_memory_init(PCMachineState *pcms,
     }
 
     /* initialize hotplug memory address space */
-    if (guest_info->has_reserved_memory &&
+    if (pcmc->has_reserved_memory &&
         (machine->ram_size < machine->maxram_size)) {
         ram_addr_t hotplug_mem_size =
             machine->maxram_size - machine->ram_size;
@@ -1379,7 +1379,7 @@ FWCfgState *pc_memory_init(PCMachineState *pcms,
 
     rom_set_fw(fw_cfg);
 
-    if (guest_info->has_reserved_memory && pcms->hotplug_memory.base) {
+    if (pcmc->has_reserved_memory && pcms->hotplug_memory.base) {
         uint64_t *val = g_malloc(sizeof(*val));
         PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
         uint64_t res_mem_end = pcms->hotplug_memory.base;
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 1828cf8..f0c2dc8 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -83,7 +83,6 @@ static void pc_init1(MachineState *machine,
     MemoryRegion *ram_memory;
     MemoryRegion *pci_memory;
     MemoryRegion *rom_memory;
-    PcGuestInfo *guest_info;
     ram_addr_t lowmem;
 
     /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory).
@@ -140,13 +139,7 @@ static void pc_init1(MachineState *machine,
         rom_memory = system_memory;
     }
 
-    guest_info = pc_guest_info_init(pcms);
-
-    guest_info->has_acpi_build = pcmc->has_acpi_build;
-    guest_info->legacy_acpi_table_size = pcmc->legacy_acpi_table_size;
-
-    guest_info->has_reserved_memory = pcmc->has_reserved_memory;
-    guest_info->rsdp_in_ram = pcmc->rsdp_in_ram;
+    pc_guest_info_init(pcms);
 
     if (pcmc->smbios_defaults) {
         MachineClass *mc = MACHINE_GET_CLASS(machine);
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index ad7a51e..0907746 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -70,7 +70,6 @@ static void pc_q35_init(MachineState *machine)
     int i;
     ICH9LPCState *ich9_lpc;
     PCIDevice *ahci;
-    PcGuestInfo *guest_info;
     ram_addr_t lowmem;
     DriveInfo *hd[MAX_SATA_PORTS];
     MachineClass *mc = MACHINE_GET_CLASS(machine);
@@ -131,15 +130,7 @@ static void pc_q35_init(MachineState *machine)
         rom_memory = get_system_memory();
     }
 
-    guest_info = pc_guest_info_init(pcms);
-    guest_info->has_acpi_build = pcmc->has_acpi_build;
-    guest_info->has_reserved_memory = pcmc->has_reserved_memory;
-    guest_info->rsdp_in_ram = pcmc->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).
-     */
-    guest_info->legacy_acpi_table_size = 0;
+    pc_guest_info_init(pcms);
 
     if (pcmc->smbios_defaults) {
         /* These values are guest ABI, do not change */
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 64f2b4b..a175131 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -27,10 +27,6 @@ struct PcGuestInfo {
     uint64_t numa_nodes;
     uint64_t *node_mem;
     uint64_t *node_cpu;
-    int legacy_acpi_table_size;
-    bool has_acpi_build;
-    bool has_reserved_memory;
-    bool rsdp_in_ram;
 };
 
 /**
-- 
2.1.0