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

virtio,pc,pci: fixes,cleanups,features

more CXL patches
VIOT
Igor's huge AML rework
fixes, cleanups all over the place

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

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# gpg: Signature made Fri 10 Jun 2022 05:27:51 PM PDT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [undefined]
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# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* tag 'for_upstream' of git://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (53 commits)
  hw/vhost-user-scsi|blk: set `supports_config` flag correctly
  hw/virtio/vhost-user: don't use uninitialized variable
  tests/acpi: virt: update golden masters for VIOT
  hw/acpi/viot: sort VIOT ACPI table entries by PCI host bridge min_bus
  tests/acpi: virt: allow VIOT acpi table changes
  hw/acpi/viot: build array of PCI host bridges before generating VIOT ACPI table
  hw/acpi/viot: move the individual PCI host bridge entry generation to a new function
  hw/acpi/viot: rename build_pci_range_node() to enumerate_pci_host_bridges()
  hw/cxl: Fix missing write mask for HDM decoder target list registers
  pci: fix overflow in snprintf string formatting
  hw/machine: Drop cxl_supported flag as no longer useful
  hw/cxl: Move the CXLState from MachineState to machine type specific state.
  tests/acpi: Update q35/CEDT.cxl for new memory addresses.
  pci/pci_expander_bridge: For CXL HB delay the HB register memory region setup.
  tests/acpi: Allow modification of q35 CXL CEDT table.
  hw/cxl: Push linking of CXL targets into i386/pc rather than in machine.c
  hw/acpi/cxl: Pass in the CXLState directly rather than MachineState
  hw/cxl: Make the CXL fixed memory window setup a machine parameter.
  x86: acpi-build: do not include hw/isa/isa.h directly
  tests: acpi: update expected DSDT.tis.tpm2/DSDT.tis.tpm12 blobs
  ...

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

4 files changed, 61 insertions, 151 deletions

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index c125939ed6..73d0bf5937 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -31,16 +31,14 @@
 #include "hw/cxl/cxl.h"
 #include "hw/core/cpu.h"
 #include "target/i386/cpu.h"
-#include "hw/misc/pvpanic.h"
 #include "hw/timer/hpet.h"
 #include "hw/acpi/acpi-defs.h"
 #include "hw/acpi/acpi.h"
 #include "hw/acpi/cpu.h"
 #include "hw/nvram/fw_cfg.h"
 #include "hw/acpi/bios-linker-loader.h"
-#include "hw/isa/isa.h"
+#include "hw/acpi/acpi_aml_interface.h"
 #include "hw/input/i8042.h"
-#include "hw/block/fdc.h"
 #include "hw/acpi/memory_hotplug.h"
 #include "sysemu/tpm.h"
 #include "hw/acpi/tpm.h"
@@ -74,7 +72,6 @@
 #include "hw/i386/intel_iommu.h"
 #include "hw/virtio/virtio-iommu.h"
 
-#include "hw/acpi/ipmi.h"
 #include "hw/acpi/hmat.h"
 #include "hw/acpi/viot.h"
 #include "hw/acpi/cxl.h"
@@ -121,8 +118,6 @@ typedef struct AcpiMiscInfo {
 #endif
     const unsigned char *dsdt_code;
     unsigned dsdt_size;
-    uint16_t pvpanic_port;
-    uint16_t applesmc_io_base;
 } AcpiMiscInfo;
 
 typedef struct AcpiBuildPciBusHotplugState {
@@ -307,8 +302,6 @@ static void acpi_get_misc_info(AcpiMiscInfo *info)
 #ifdef CONFIG_TPM
     info->tpm_version = tpm_get_version(tpm_find());
 #endif
-    info->pvpanic_port = pvpanic_port();
-    info->applesmc_io_base = applesmc_port();
 }
 
 /*
@@ -865,21 +858,6 @@ static Aml *build_vmbus_device_aml(VMBusBridge *vmbus_bridge)
     return dev;
 }
 
-static void build_isa_devices_aml(Aml *table)
-{
-    bool ambiguous;
-    Object *obj = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous);
-    Aml *scope;
-
-    assert(obj && !ambiguous);
-
-    scope = aml_scope("_SB.PCI0.ISA");
-    build_acpi_ipmi_devices(scope, BUS(obj), "\\_SB.PCI0.ISA");
-    isa_build_aml(ISA_BUS(obj), scope);
-
-    aml_append(table, scope);
-}
-
 static void build_dbg_aml(Aml *table)
 {
     Aml *field;
@@ -1265,15 +1243,22 @@ static void build_q35_isa_bridge(Aml *table)
 {
     Aml *dev;
     Aml *scope;
+    Object *obj;
+    bool ambiguous;
+
+    /*
+     * temporarily fish out isa bridge, build_q35_isa_bridge() will be dropped
+     * once PCI is converted to AcpiDevAmlIf and would be ble to generate
+     * AML for bridge itself
+     */
+    obj = object_resolve_path_type("", TYPE_ICH9_LPC_DEVICE, &ambiguous);
+    assert(obj && !ambiguous);
 
     scope =  aml_scope("_SB.PCI0");
     dev = aml_device("ISA");
     aml_append(dev, aml_name_decl("_ADR", aml_int(0x001F0000)));
 
-    /* ICH9 PCI to ISA irq remapping */
-    aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG,
-                                         aml_int(0x60), 0x0C));
-
+    call_dev_aml_func(DEVICE(obj), dev);
     aml_append(scope, dev);
     aml_append(table, scope);
 }
@@ -1282,15 +1267,22 @@ static void build_piix4_isa_bridge(Aml *table)
 {
     Aml *dev;
     Aml *scope;
+    Object *obj;
+    bool ambiguous;
+
+    /*
+     * temporarily fish out isa bridge, build_piix4_isa_bridge() will be dropped
+     * once PCI is converted to AcpiDevAmlIf and would be ble to generate
+     * AML for bridge itself
+     */
+    obj = object_resolve_path_type("", TYPE_PIIX3_PCI_DEVICE, &ambiguous);
+    assert(obj && !ambiguous);
 
     scope =  aml_scope("_SB.PCI0");
     dev = aml_device("ISA");
     aml_append(dev, aml_name_decl("_ADR", aml_int(0x00010000)));
 
-    /* PIIX PCI to ISA irq remapping */
-    aml_append(dev, aml_operation_region("P40C", AML_PCI_CONFIG,
-                                         aml_int(0x60), 0x04));
-
+    call_dev_aml_func(DEVICE(obj), dev);
     aml_append(scope, dev);
     aml_append(table, scope);
 }
@@ -1401,13 +1393,21 @@ static Aml *build_q35_osc_method(bool enable_native_pcie_hotplug)
     return method;
 }
 
-static void build_smb0(Aml *table, I2CBus *smbus, int devnr, int func)
+static void build_smb0(Aml *table, int devnr, int func)
 {
     Aml *scope = aml_scope("_SB.PCI0");
     Aml *dev = aml_device("SMB0");
+    bool ambiguous;
+    Object *obj;
+    /*
+     * temporarily fish out device hosting SMBUS, build_smb0 will be gone once
+     * PCI enumeration will be switched to call_dev_aml_func()
+     */
+    obj = object_resolve_path_type("", TYPE_ICH9_SMB_DEVICE, &ambiguous);
+    assert(obj && !ambiguous);
 
     aml_append(dev, aml_name_decl("_ADR", aml_int(devnr << 16 | func)));
-    build_acpi_ipmi_devices(dev, BUS(smbus), "\\_SB.PCI0.SMB0");
+    call_dev_aml_func(DEVICE(obj), dev);
     aml_append(scope, dev);
     aml_append(table, scope);
 }
@@ -1470,7 +1470,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
             build_hpet_aml(dsdt);
         }
         build_piix4_isa_bridge(dsdt);
-        build_isa_devices_aml(dsdt);
         if (pm->pcihp_bridge_en || pm->pcihp_root_en) {
             build_x86_acpi_pci_hotplug(dsdt, pm->pcihp_io_base);
         }
@@ -1519,13 +1518,12 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
             build_hpet_aml(dsdt);
         }
         build_q35_isa_bridge(dsdt);
-        build_isa_devices_aml(dsdt);
         if (pm->pcihp_bridge_en) {
             build_x86_acpi_pci_hotplug(dsdt, pm->pcihp_io_base);
         }
         build_q35_pci0_int(dsdt);
-        if (pcms->smbus && !pcmc->do_not_add_smb_acpi) {
-            build_smb0(dsdt, pcms->smbus, ICH9_SMB_DEV, ICH9_SMB_FUNC);
+        if (pcms->smbus) {
+            build_smb0(dsdt, ICH9_SMB_DEV, ICH9_SMB_FUNC);
         }
     }
 
@@ -1633,7 +1631,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
 
             /* Handle the ranges for the PXB expanders */
             if (pci_bus_is_cxl(bus)) {
-                MemoryRegion *mr = &machine->cxl_devices_state->host_mr;
+                MemoryRegion *mr = &pcms->cxl_devices_state.host_mr;
                 uint64_t base = mr->addr;
 
                 cxl_present = true;
@@ -1796,110 +1794,15 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
         aml_append(dsdt, scope);
     }
 
-    if (misc->applesmc_io_base) {
-        scope = aml_scope("\\_SB.PCI0.ISA");
-        dev = aml_device("SMC");
-
-        aml_append(dev, aml_name_decl("_HID", aml_eisaid("APP0001")));
-        /* device present, functioning, decoding, not shown in UI */
-        aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
-
-        crs = aml_resource_template();
-        aml_append(crs,
-            aml_io(AML_DECODE16, misc->applesmc_io_base, misc->applesmc_io_base,
-                   0x01, APPLESMC_MAX_DATA_LENGTH)
-        );
-        aml_append(crs, aml_irq_no_flags(6));
-        aml_append(dev, aml_name_decl("_CRS", crs));
-
-        aml_append(scope, dev);
-        aml_append(dsdt, scope);
-    }
-
-    if (misc->pvpanic_port) {
-        scope = aml_scope("\\_SB.PCI0.ISA");
-
-        dev = aml_device("PEVT");
-        aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0001")));
-
-        crs = aml_resource_template();
-        aml_append(crs,
-            aml_io(AML_DECODE16, misc->pvpanic_port, misc->pvpanic_port, 1, 1)
-        );
-        aml_append(dev, aml_name_decl("_CRS", crs));
-
-        aml_append(dev, aml_operation_region("PEOR", AML_SYSTEM_IO,
-                                              aml_int(misc->pvpanic_port), 1));
-        field = aml_field("PEOR", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
-        aml_append(field, aml_named_field("PEPT", 8));
-        aml_append(dev, field);
-
-        /* device present, functioning, decoding, shown in UI */
-        aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
-
-        method = aml_method("RDPT", 0, AML_NOTSERIALIZED);
-        aml_append(method, aml_store(aml_name("PEPT"), aml_local(0)));
-        aml_append(method, aml_return(aml_local(0)));
-        aml_append(dev, method);
-
-        method = aml_method("WRPT", 1, AML_NOTSERIALIZED);
-        aml_append(method, aml_store(aml_arg(0), aml_name("PEPT")));
-        aml_append(dev, method);
-
-        aml_append(scope, dev);
-        aml_append(dsdt, scope);
-    }
-
     sb_scope = aml_scope("\\_SB");
     {
-        Object *pci_host;
-        PCIBus *bus = NULL;
-
-        pci_host = acpi_get_i386_pci_host();
+        Object *pci_host = acpi_get_i386_pci_host();
 
         if (pci_host) {
-            bus = PCI_HOST_BRIDGE(pci_host)->bus;
-        }
-
-        if (bus) {
+            PCIBus *bus = PCI_HOST_BRIDGE(pci_host)->bus;
             Aml *scope = aml_scope("PCI0");
             /* Scan all PCI buses. Generate tables to support hotplug. */
             build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);
-
-#ifdef CONFIG_TPM
-            if (TPM_IS_TIS_ISA(tpm)) {
-                if (misc->tpm_version == TPM_VERSION_2_0) {
-                    dev = aml_device("TPM");
-                    aml_append(dev, aml_name_decl("_HID",
-                                                  aml_string("MSFT0101")));
-                    aml_append(dev,
-                               aml_name_decl("_STR",
-                                             aml_string("TPM 2.0 Device")));
-                } else {
-                    dev = aml_device("ISA.TPM");
-                    aml_append(dev, aml_name_decl("_HID",
-                                                  aml_eisaid("PNP0C31")));
-                }
-                aml_append(dev, aml_name_decl("_UID", aml_int(1)));
-
-                aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
-                crs = aml_resource_template();
-                aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,
-                           TPM_TIS_ADDR_SIZE, AML_READ_WRITE));
-                /*
-                    FIXME: TPM_TIS_IRQ=5 conflicts with PNP0C0F irqs,
-                    Rewrite to take IRQ from TPM device model and
-                    fix default IRQ value there to use some unused IRQ
-                 */
-                /* aml_append(crs, aml_irq_no_flags(TPM_TIS_IRQ)); */
-                aml_append(dev, aml_name_decl("_CRS", crs));
-
-                tpm_build_ppi_acpi(tpm, dev);
-
-                aml_append(scope, dev);
-            }
-#endif
-
             aml_append(sb_scope, scope);
         }
     }
@@ -2711,9 +2614,9 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
                           machine->nvdimms_state, machine->ram_slots,
                           x86ms->oem_id, x86ms->oem_table_id);
     }
-    if (machine->cxl_devices_state->is_enabled) {
-        cxl_build_cedt(machine, table_offsets, tables_blob, tables->linker,
-                       x86ms->oem_id, x86ms->oem_table_id);
+    if (pcms->cxl_devices_state.is_enabled) {
+        cxl_build_cedt(table_offsets, tables_blob, tables->linker,
+                       x86ms->oem_id, x86ms->oem_table_id, &pcms->cxl_devices_state);
     }
 
     acpi_add_table(table_offsets, tables_blob);
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 7c39c91335..1b6067ff22 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -37,6 +37,7 @@
 #include "hw/ide.h"
 #include "hw/pci/pci.h"
 #include "hw/pci/pci_bus.h"
+#include "hw/pci-bridge/pci_expander_bridge.h"
 #include "hw/nvram/fw_cfg.h"
 #include "hw/timer/hpet.h"
 #include "hw/firmware/smbios.h"
@@ -76,6 +77,7 @@
 #include "hw/mem/pc-dimm.h"
 #include "hw/mem/nvdimm.h"
 #include "hw/cxl/cxl.h"
+#include "hw/cxl/cxl_host.h"
 #include "qapi/error.h"
 #include "qapi/qapi-visit-common.h"
 #include "qapi/qapi-visit-machine.h"
@@ -732,6 +734,13 @@ void pc_machine_done(Notifier *notifier, void *data)
                                         PCMachineState, machine_done);
     X86MachineState *x86ms = X86_MACHINE(pcms);
 
+    cxl_hook_up_pxb_registers(pcms->bus, &pcms->cxl_devices_state,
+                              &error_fatal);
+
+    if (pcms->cxl_devices_state.is_enabled) {
+        cxl_fmws_link_targets(&pcms->cxl_devices_state, &error_fatal);
+    }
+
     /* set the number of CPUs */
     x86_rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus);
 
@@ -899,8 +908,8 @@ void pc_memory_init(PCMachineState *pcms,
                                     &machine->device_memory->mr);
     }
 
-    if (machine->cxl_devices_state->is_enabled) {
-        MemoryRegion *mr = &machine->cxl_devices_state->host_mr;
+    if (pcms->cxl_devices_state.is_enabled) {
+        MemoryRegion *mr = &pcms->cxl_devices_state.host_mr;
         hwaddr cxl_size = MiB;
 
         if (pcmc->has_reserved_memory && machine->device_memory->base) {
@@ -918,12 +927,12 @@ void pc_memory_init(PCMachineState *pcms,
         memory_region_init(mr, OBJECT(machine), "cxl_host_reg", cxl_size);
         memory_region_add_subregion(system_memory, cxl_base, mr);
         cxl_resv_end = cxl_base + cxl_size;
-        if (machine->cxl_devices_state->fixed_windows) {
+        if (pcms->cxl_devices_state.fixed_windows) {
             hwaddr cxl_fmw_base;
             GList *it;
 
             cxl_fmw_base = ROUND_UP(cxl_base + cxl_size, 256 * MiB);
-            for (it = machine->cxl_devices_state->fixed_windows; it; it = it->next) {
+            for (it = pcms->cxl_devices_state.fixed_windows; it; it = it->next) {
                 CXLFixedWindow *fw = it->data;
 
                 fw->base = cxl_fmw_base;
@@ -965,7 +974,7 @@ void pc_memory_init(PCMachineState *pcms,
             res_mem_end += memory_region_size(&machine->device_memory->mr);
         }
 
-        if (machine->cxl_devices_state->is_enabled) {
+        if (pcms->cxl_devices_state.is_enabled) {
             res_mem_end = cxl_resv_end;
         }
         *val = cpu_to_le64(ROUND_UP(res_mem_end, 1 * GiB));
@@ -1001,12 +1010,12 @@ uint64_t pc_pci_hole64_start(void)
     X86MachineState *x86ms = X86_MACHINE(pcms);
     uint64_t hole64_start = 0;
 
-    if (ms->cxl_devices_state->host_mr.addr) {
-        hole64_start = ms->cxl_devices_state->host_mr.addr +
-            memory_region_size(&ms->cxl_devices_state->host_mr);
-        if (ms->cxl_devices_state->fixed_windows) {
+    if (pcms->cxl_devices_state.host_mr.addr) {
+        hole64_start = pcms->cxl_devices_state.host_mr.addr +
+            memory_region_size(&pcms->cxl_devices_state.host_mr);
+        if (pcms->cxl_devices_state.fixed_windows) {
             GList *it;
-            for (it = ms->cxl_devices_state->fixed_windows; it; it = it->next) {
+            for (it = pcms->cxl_devices_state.fixed_windows; it; it = it->next) {
                 CXLFixedWindow *fw = it->data;
                 hole64_start = fw->mr.addr + memory_region_size(&fw->mr);
             }
@@ -1706,6 +1715,7 @@ static void pc_machine_initfn(Object *obj)
     pcms->pcspk = isa_new(TYPE_PC_SPEAKER);
     object_property_add_alias(OBJECT(pcms), "pcspk-audiodev",
                               OBJECT(pcms->pcspk), "audiodev");
+    cxl_machine_init(obj, &pcms->cxl_devices_state);
 }
 
 static void pc_machine_reset(MachineState *machine)
@@ -1794,7 +1804,6 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
     mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
     mc->nvdimm_supported = true;
     mc->smp_props.dies_supported = true;
-    mc->cxl_supported = true;
     mc->default_ram_id = "pc.ram";
 
     object_class_property_add(oc, PC_MACHINE_MAX_RAM_BELOW_4G, "size",
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 0e45521e74..bd63511c1c 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -563,7 +563,6 @@ static void pc_i440fx_3_1_machine_options(MachineClass *m)
 
     pc_i440fx_4_0_machine_options(m);
     m->is_default = false;
-    pcmc->do_not_add_smb_acpi = true;
     m->smbus_no_migration_support = true;
     m->alias = NULL;
     pcmc->pvh_enabled = false;
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 42eb8b9707..f96cbd04e2 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -514,7 +514,6 @@ static void pc_q35_3_1_machine_options(MachineClass *m)
 
     pc_q35_4_0_machine_options(m);
     m->default_kernel_irqchip_split = false;
-    pcmc->do_not_add_smb_acpi = true;
     m->smbus_no_migration_support = true;
     m->alias = NULL;
     pcmc->pvh_enabled = false;