Merge tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pc,pci: fixes,cleanups,features

most of CXL support
fixes, cleanups all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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* tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (86 commits)
  vhost-user-scsi: avoid unlink(NULL) with fd passing
  virtio-net: don't handle mq request in userspace handler for vhost-vdpa
  vhost-vdpa: change name and polarity for vhost_vdpa_one_time_request()
  vhost-vdpa: backend feature should set only once
  vhost-net: fix improper cleanup in vhost_net_start
  vhost-vdpa: fix improper cleanup in net_init_vhost_vdpa
  virtio-net: align ctrl_vq index for non-mq guest for vhost_vdpa
  virtio-net: setup vhost_dev and notifiers for cvq only when feature is negotiated
  hw/i386/amd_iommu: Fix IOMMU event log encoding errors
  hw/i386: Make pic a property of common x86 base machine type
  hw/i386: Make pit a property of common x86 base machine type
  include/hw/pci/pcie_host: Correct PCIE_MMCFG_SIZE_MAX
  include/hw/pci/pcie_host: Correct PCIE_MMCFG_BUS_MASK
  docs/vhost-user: Clarifications for VHOST_USER_ADD/REM_MEM_REG
  vhost-user: more master/slave things
  virtio: add vhost support for virtio devices
  virtio: drop name parameter for virtio_init()
  virtio/vhost-user: dynamically assign VhostUserHostNotifiers
  hw/virtio/vhost-user: don't suppress F_CONFIG when supported
  include/hw: start documenting the vhost API
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 17 insertions, 3 deletions

diff --git a/hw/pci-host/gpex-acpi.c b/hw/pci-host/gpex-acpi.c
index e7e162a..7c7316b 100644
--- a/hw/pci-host/gpex-acpi.c
+++ b/hw/pci-host/gpex-acpi.c
@@ -5,6 +5,7 @@
 #include "hw/pci/pci_bus.h"
 #include "hw/pci/pci_bridge.h"
 #include "hw/pci/pcie_host.h"
+#include "hw/acpi/cxl.h"
 
 static void acpi_dsdt_add_pci_route_table(Aml *dev, uint32_t irq)
 {
@@ -139,6 +140,7 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *cfg)
         QLIST_FOREACH(bus, &bus->child, sibling) {
             uint8_t bus_num = pci_bus_num(bus);
             uint8_t numa_node = pci_bus_numa_node(bus);
+            bool is_cxl = pci_bus_is_cxl(bus);
 
             if (!pci_bus_is_root(bus)) {
                 continue;
@@ -154,8 +156,16 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *cfg)
             }
 
             dev = aml_device("PC%.02X", bus_num);
-            aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A08")));
-            aml_append(dev, aml_name_decl("_CID", aml_string("PNP0A03")));
+            if (is_cxl) {
+                struct Aml *pkg = aml_package(2);
+                aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0016")));
+                aml_append(pkg, aml_eisaid("PNP0A08"));
+                aml_append(pkg, aml_eisaid("PNP0A03"));
+                aml_append(dev, aml_name_decl("_CID", pkg));
+            } else {
+                aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A08")));
+                aml_append(dev, aml_name_decl("_CID", aml_string("PNP0A03")));
+            }
             aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num)));
             aml_append(dev, aml_name_decl("_UID", aml_int(bus_num)));
             aml_append(dev, aml_name_decl("_STR", aml_unicode("pxb Device")));
@@ -175,7 +185,11 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *cfg)
                             cfg->pio.base, 0, 0, 0);
             aml_append(dev, aml_name_decl("_CRS", crs));
 
-            acpi_dsdt_add_pci_osc(dev);
+            if (is_cxl) {
+                build_cxl_osc_method(dev);
+            } else {
+                acpi_dsdt_add_pci_osc(dev);
+            }
 
             aml_append(scope, dev);
         }