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authorIgor Mammedov <imammedo@redhat.com>2016-12-06 00:32:28 +0100
committerMichael S. Tsirkin <mst@redhat.com>2017-01-10 07:03:24 +0200
commit80db0e7822962554c91bef05d784c898e8ab1c3c (patch)
treec62e40df1b60281f063d59a741af40c5e8f2836c /hw/i386/acpi-build.c
parentc9c085458060db9a63fa05c51e33c75e8390b2dc (diff)
memhp: don't generate memory hotplug AML if it's not enabled/supported
That reduces DSDT by 910 bytes when memory hotplug isn't enabled. While doing so drop intermediate variables/arguments passing around ACPI_MEMORY_HOTPLUG_IO_LEN and making it local to memory_hotplug.c, hardcoding it there as it can't change. Also don't pass around ACPI_MEMORY_HOTPLUG_BASE through intermediate variables/arguments where it's not needed. Instead initialize in module static variable when MMIO region is mapped and use that within memory_hotplug.c whenever it's required. That way MMIO base specified only at one place and AML with MMIO would always use the same value. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Diffstat (limited to 'hw/i386/acpi-build.c')
-rw-r--r--hw/i386/acpi-build.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 9f3cfbaee1..0c8912fd86 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -101,8 +101,6 @@ typedef struct AcpiPmInfo {
uint32_t gpe0_blk_len;
uint32_t io_base;
uint16_t cpu_hp_io_base;
- uint16_t mem_hp_io_base;
- uint16_t mem_hp_io_len;
uint16_t pcihp_io_base;
uint16_t pcihp_io_len;
} AcpiPmInfo;
@@ -148,9 +146,6 @@ static void acpi_get_pm_info(AcpiPmInfo *pm)
}
assert(obj);
- pm->mem_hp_io_base = ACPI_MEMORY_HOTPLUG_BASE;
- pm->mem_hp_io_len = ACPI_MEMORY_HOTPLUG_IO_LEN;
-
/* Fill in optional s3/s4 related properties */
o = object_property_get_qobject(obj, ACPI_PM_PROP_S3_DISABLED, NULL);
if (o) {
@@ -1925,9 +1920,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
build_cpus_aml(dsdt, machine, opts, pm->cpu_hp_io_base,
"\\_SB.PCI0", "\\_GPE._E02");
}
- build_memory_hotplug_aml(dsdt, nr_mem, pm->mem_hp_io_base,
- pm->mem_hp_io_len,
- "\\_SB.PCI0", "\\_GPE._E03");
+ build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0", "\\_GPE._E03");
scope = aml_scope("_GPE");
{