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From c07dfca3b340161294755691f416ab20f37fa7c3 Mon Sep 17 00:00:00 2001
From: Igor Mammedov <imammedo@redhat.com>
Date: Thu, 4 Oct 2018 10:31:31 +0100
Subject: [PATCH 01/17] Revert "hw/acpi-build: build SRAT memory affinity
 structures for DIMM devices"

RH-Author: Igor Mammedov <imammedo@redhat.com>
Message-id: <1538649091-70517-1-git-send-email-imammedo@redhat.com>
Patchwork-id: 82373
O-Subject: [RHEL8/virt-8.0.0 qemu-kvm PATCH] Revert "hw/acpi-build: build SRAT memory affinity structures for DIMM devices"
Bugzilla: 1609235
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1609235
Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=18630981
Upstream: RHEL only

Since upstream commits
 (0efd7e108 "pc: acpi: fix memory hotplug regression by reducing stub SRAT entry size")
 (dbb6da8ba7 "pc: acpi: revert back to 1 SRAT entry for hotpluggable area")
hasn't been backported to RHEL8, it's sufficient to revert commit
 (848a1cc1e8 "hw/acpi-build: build SRAT memory affinity structures for DIMM devices")
for the result to  match the current upstream state and fix the bug.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
 hw/i386/acpi-build.c | 56 ++++------------------------------------------------
 1 file changed, 4 insertions(+), 52 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index b309a97..a175a8a 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2253,55 +2253,6 @@ build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog)
 #define HOLE_640K_START  (640 * 1024)
 #define HOLE_640K_END   (1024 * 1024)
 
-static void build_srat_hotpluggable_memory(GArray *table_data, uint64_t base,
-                                           uint64_t len, int default_node)
-{
-    MemoryDeviceInfoList *info_list = qmp_pc_dimm_device_list();
-    MemoryDeviceInfoList *info;
-    MemoryDeviceInfo *mi;
-    PCDIMMDeviceInfo *di;
-    uint64_t end = base + len, cur, size;
-    bool is_nvdimm;
-    AcpiSratMemoryAffinity *numamem;
-    MemoryAffinityFlags flags;
-
-    for (cur = base, info = info_list;
-         cur < end;
-         cur += size, info = info->next) {
-        numamem = acpi_data_push(table_data, sizeof *numamem);
-
-        if (!info) {
-            build_srat_memory(numamem, cur, end - cur, default_node,
-                              MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
-            break;
-        }
-
-        mi = info->value;
-        is_nvdimm = (mi->type == MEMORY_DEVICE_INFO_KIND_NVDIMM);
-        di = !is_nvdimm ? mi->u.dimm.data : mi->u.nvdimm.data;
-
-        if (cur < di->addr) {
-            build_srat_memory(numamem, cur, di->addr - cur, default_node,
-                              MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
-            numamem = acpi_data_push(table_data, sizeof *numamem);
-        }
-
-        size = di->size;
-
-        flags = MEM_AFFINITY_ENABLED;
-        if (di->hotpluggable) {
-            flags |= MEM_AFFINITY_HOTPLUGGABLE;
-        }
-        if (is_nvdimm) {
-            flags |= MEM_AFFINITY_NON_VOLATILE;
-        }
-
-        build_srat_memory(numamem, di->addr, size, di->node, flags);
-    }
-
-    qapi_free_MemoryDeviceInfoList(info_list);
-}
-
 static void
 build_srat(GArray *table_data, BIOSLinker *linker, MachineState *machine)
 {
@@ -2413,9 +2364,10 @@ build_srat(GArray *table_data, BIOSLinker *linker, MachineState *machine)
      * providing _PXM method if necessary.
      */
     if (hotplugabble_address_space_size) {
-        build_srat_hotpluggable_memory(table_data, pcms->hotplug_memory.base,
-                                       hotplugabble_address_space_size,
-                                       pcms->numa_nodes - 1);
+        numamem = acpi_data_push(table_data, sizeof *numamem);
+        build_srat_memory(numamem, pcms->hotplug_memory.base,
+                          hotplugabble_address_space_size, pcms->numa_nodes - 1,
+                          MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
     }
 
     build_header(linker, table_data,
-- 
1.8.3.1