[Qemu-devel] [PATCH 3/9] pc: acpi: cleanup qdev_get_machine() calls

[Igor Mammedov <imammedo@redhat.com>]

call qdev_get_machine() once at acpi_build() and
pass its result to child functions that need it.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
Later it will also allow to reduce number of arguments
passed around by build_foo() functions called from
acpi_build() once guest_info fields are moved into
PCMachineState.
---
 hw/i386/acpi-build.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 2028ed7..faf541c 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1937,13 +1937,13 @@ static Aml *build_q35_osc_method(void)
 static void
 build_dsdt(GArray *table_data, GArray *linker,
            AcpiCpuInfo *cpu, AcpiPmInfo *pm, AcpiMiscInfo *misc,
-           PcPciInfo *pci, PcGuestInfo *guest_info)
+           PcPciInfo *pci, PcGuestInfo *guest_info,
+           MachineState *machine)
 {
     CrsRangeEntry *entry;
     Aml *dsdt, *sb_scope, *scope, *dev, *method, *field, *pkg, *crs;
     GPtrArray *mem_ranges = g_ptr_array_new_with_free_func(crs_range_free);
     GPtrArray *io_ranges = g_ptr_array_new_with_free_func(crs_range_free);
-    MachineState *machine = MACHINE(qdev_get_machine());
     uint32_t nr_mem = machine->ram_slots;
     int root_bus_limit = 0xFF;
     PCIBus *bus = NULL;
@@ -2365,7 +2365,8 @@ acpi_build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
 }
 
 static void
-build_srat(GArray *table_data, GArray *linker, PcGuestInfo *guest_info)
+build_srat(GArray *table_data, GArray *linker, PcGuestInfo *guest_info,
+           MachineState *machine)
 {
     AcpiSystemResourceAffinityTable *srat;
     AcpiSratProcessorAffinity *core;
@@ -2375,7 +2376,7 @@ build_srat(GArray *table_data, GArray *linker, PcGuestInfo *guest_info)
     uint64_t curnode;
     int srat_start, numa_start, slots;
     uint64_t mem_len, mem_base, next_base;
-    PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
+    PCMachineState *pcms = PC_MACHINE(machine);
     ram_addr_t hotplugabble_address_space_size =
         object_property_get_int(OBJECT(pcms), PC_MACHINE_MEMHP_REGION_SIZE,
                                 NULL);
@@ -2579,9 +2580,9 @@ static bool acpi_has_iommu(void)
     return intel_iommu && !ambiguous;
 }
 
-static bool acpi_has_nvdimm(void)
+static bool acpi_has_nvdimm(MachineState *machine)
 {
-    PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
+    PCMachineState *pcms = PC_MACHINE(machine);
 
     return pcms->nvdimm;
 }
@@ -2599,6 +2600,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
     uint8_t *u;
     size_t aml_len = 0;
     GArray *tables_blob = tables->table_data;
+    MachineState *machine = MACHINE(qdev_get_machine());
 
     acpi_get_cpu_info(&cpu);
     acpi_get_pm_info(&pm);
@@ -2624,7 +2626,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
     /* DSDT is pointed to by FADT */
     dsdt = tables_blob->len;
     build_dsdt(tables_blob, tables->linker, &cpu, &pm, &misc, &pci,
-               guest_info);
+               guest_info, machine);
 
     /* Count the size of the DSDT and SSDT, we will need it for legacy
      * sizing of ACPI tables.
@@ -2655,7 +2657,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
     }
     if (guest_info->numa_nodes) {
         acpi_add_table(table_offsets, tables_blob);
-        build_srat(tables_blob, tables->linker, guest_info);
+        build_srat(tables_blob, tables->linker, guest_info, machine);
     }
     if (acpi_get_mcfg(&mcfg)) {
         acpi_add_table(table_offsets, tables_blob);
@@ -2666,7 +2668,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
         build_dmar_q35(tables_blob, tables->linker);
     }
 
-    if (acpi_has_nvdimm()) {
+    if (acpi_has_nvdimm(machine)) {
         nvdimm_build_acpi(table_offsets, tables_blob, tables->linker);
     }
 
-- 
1.8.3.1