118 lines
4.5 KiB
Diff
118 lines
4.5 KiB
Diff
From c0bedad9bd133c14096eeeae49877fbb9eb179c3 Mon Sep 17 00:00:00 2001
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From: Igor Mammedov <imammedo@redhat.com>
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Date: Thu, 4 Oct 2018 10:31:31 +0100
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Subject: Revert "hw/acpi-build: build SRAT memory affinity structures for DIMM
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devices"
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RH-Author: Igor Mammedov <imammedo@redhat.com>
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Message-id: <1538649091-70517-1-git-send-email-imammedo@redhat.com>
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Patchwork-id: 82373
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O-Subject: [RHEL8/virt-8.0.0 qemu-kvm PATCH] Revert "hw/acpi-build: build SRAT memory affinity structures for DIMM devices"
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Bugzilla: 1609235
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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Since upstream commits
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(0efd7e108 "pc: acpi: fix memory hotplug regression by reducing stub SRAT entry size")
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(dbb6da8ba7 "pc: acpi: revert back to 1 SRAT entry for hotpluggable area")
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hasn't been backported to RHEL8, it's sufficient to revert commit
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(848a1cc1e8 "hw/acpi-build: build SRAT memory affinity structures for DIMM devices")
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for the result to match the current upstream state and fix the bug.
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Signed-off-by: Igor Mammedov <imammedo@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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Rebase notes (3.0.0):
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- Replace hotplug_memory with device_memory in PCMachineState
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---
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hw/i386/acpi-build.c | 65 ++++------------------------------------------------
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1 file changed, 4 insertions(+), 61 deletions(-)
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diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
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index be9bdb5..f95516c 100644
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--- a/hw/i386/acpi-build.c
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+++ b/hw/i386/acpi-build.c
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@@ -2254,64 +2254,6 @@ build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog)
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#define HOLE_640K_START (640 * KiB)
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#define HOLE_640K_END (1 * MiB)
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-static void build_srat_hotpluggable_memory(GArray *table_data, uint64_t base,
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- uint64_t len, int default_node)
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-{
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- MemoryDeviceInfoList *info_list = qmp_memory_device_list();
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- MemoryDeviceInfoList *info;
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- MemoryDeviceInfo *mi;
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- PCDIMMDeviceInfo *di;
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- uint64_t end = base + len, cur, size;
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- bool is_nvdimm;
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- AcpiSratMemoryAffinity *numamem;
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- MemoryAffinityFlags flags;
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-
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- for (cur = base, info = info_list;
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- cur < end;
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- cur += size, info = info->next) {
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- numamem = acpi_data_push(table_data, sizeof *numamem);
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-
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- if (!info) {
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- /*
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- * Entry is required for Windows to enable memory hotplug in OS
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- * and for Linux to enable SWIOTLB when booted with less than
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- * 4G of RAM. Windows works better if the entry sets proximity
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- * to the highest NUMA node in the machine at the end of the
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- * reserved space.
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- * Memory devices may override proximity set by this entry,
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- * providing _PXM method if necessary.
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- */
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- build_srat_memory(numamem, end - 1, 1, default_node,
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- MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
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- break;
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- }
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-
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- mi = info->value;
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- is_nvdimm = (mi->type == MEMORY_DEVICE_INFO_KIND_NVDIMM);
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- di = !is_nvdimm ? mi->u.dimm.data : mi->u.nvdimm.data;
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-
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- if (cur < di->addr) {
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- build_srat_memory(numamem, cur, di->addr - cur, default_node,
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- MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
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- numamem = acpi_data_push(table_data, sizeof *numamem);
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- }
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-
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- size = di->size;
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-
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- flags = MEM_AFFINITY_ENABLED;
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- if (di->hotpluggable) {
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- flags |= MEM_AFFINITY_HOTPLUGGABLE;
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- }
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- if (is_nvdimm) {
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- flags |= MEM_AFFINITY_NON_VOLATILE;
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- }
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-
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- build_srat_memory(numamem, di->addr, size, di->node, flags);
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- }
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-
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- qapi_free_MemoryDeviceInfoList(info_list);
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-}
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-
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static void
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build_srat(GArray *table_data, BIOSLinker *linker, MachineState *machine)
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{
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@@ -2418,9 +2360,10 @@ build_srat(GArray *table_data, BIOSLinker *linker, MachineState *machine)
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}
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if (hotplugabble_address_space_size) {
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- build_srat_hotpluggable_memory(table_data, machine->device_memory->base,
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- hotplugabble_address_space_size,
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- pcms->numa_nodes - 1);
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+ numamem = acpi_data_push(table_data, sizeof *numamem);
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+ build_srat_memory(numamem, machine->device_memory->base,
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+ hotplugabble_address_space_size, pcms->numa_nodes - 1,
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+ MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
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}
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build_header(linker, table_data,
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--
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1.8.3.1
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