From d12dbd44e42fa0e851d62e0804f78bab5bd148d5 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 17 Oct 2022 12:21:45 +0200 Subject: [PATCH] acpi: pc/35: sanitize _GPE declaration order Move _GPE block declaration before it gets referenced by other hotplug handlers. While at it move PCI hotplug (_E01) handler after PCI tree description to avoid forward reference to to not yet declared methods/devices. PS: Forward 'usage' usualy is fine as long as it's hidden within method, however 'iasl' may print warnings. So be nice to iasl/guest OS and do things in proper order. PS2: Also follow up patches will move some of hotplug code from PCI tree to _E01 and that also requires PCI Device nodes build first, before Scope can reuse that from global context. Signed-off-by: Igor Mammedov Message-Id: <20221017102146.2254096-11-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/i386/acpi-build.c | 47 +++++++++++++++++++++++++---------------------- 1 file changed, 25 insertions(+), 22 deletions(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 916343d8d6..960305462c 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1434,6 +1434,18 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, aml_append(dsdt, sb_scope); } + scope = aml_scope("_GPE"); + { + aml_append(scope, aml_name_decl("_HID", aml_string("ACPI0006"))); + if (machine->nvdimms_state->is_enabled) { + method = aml_method("_E04", 0, AML_NOTSERIALIZED); + aml_append(method, aml_notify(aml_name("\\_SB.NVDR"), + aml_int(0x80))); + aml_append(scope, method); + } + } + aml_append(dsdt, scope); + if (pcmc->legacy_cpu_hotplug) { build_legacy_cpu_hotplug_aml(dsdt, machine, pm->cpu_hp_io_base); } else { @@ -1452,28 +1464,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, pcms->memhp_io_base); } - scope = aml_scope("_GPE"); - { - aml_append(scope, aml_name_decl("_HID", aml_string("ACPI0006"))); - - if (pm->pcihp_bridge_en || pm->pcihp_root_en) { - method = aml_method("_E01", 0, AML_NOTSERIALIZED); - aml_append(method, - aml_acquire(aml_name("\\_SB.PCI0.BLCK"), 0xFFFF)); - aml_append(method, aml_call0("\\_SB.PCI0.PCNT")); - aml_append(method, aml_release(aml_name("\\_SB.PCI0.BLCK"))); - aml_append(scope, method); - } - - if (machine->nvdimms_state->is_enabled) { - method = aml_method("_E04", 0, AML_NOTSERIALIZED); - aml_append(method, aml_notify(aml_name("\\_SB.NVDR"), - aml_int(0x80))); - aml_append(scope, method); - } - } - aml_append(dsdt, scope); - crs_range_set_init(&crs_range_set); bus = PC_MACHINE(machine)->bus; if (bus) { @@ -1752,6 +1742,19 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, } aml_append(dsdt, sb_scope); + if (pm->pcihp_bridge_en || pm->pcihp_root_en) { + scope = aml_scope("_GPE"); + { + method = aml_method("_E01", 0, AML_NOTSERIALIZED); + aml_append(method, + aml_acquire(aml_name("\\_SB.PCI0.BLCK"), 0xFFFF)); + aml_append(method, aml_call0("\\_SB.PCI0.PCNT")); + aml_append(method, aml_release(aml_name("\\_SB.PCI0.BLCK"))); + aml_append(scope, method); + } + aml_append(dsdt, scope); + } + /* copy AML table into ACPI tables blob and patch header there */ g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len); acpi_table_end(linker, &table); -- 2.11.4.GIT