Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio,acpi,pci: fixes, cleanups.

Fixes, cleanups in ACPI, PCI, virtio.

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

# gpg: Signature made Thu 25 Jun 2020 07:48:47 BST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# 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

* remotes/mst/tags/for_upstream:
  Rename use_acpi_pci_hotplug to more appropriate use_acpi_hotplug_bridge
  Stop vhost-user sending uninitialized mmap_offsets
  docs/specs/tpm: ACPI boot now supported for TPM/ARM
  arm/acpi: Add the TPM2.0 device under the DSDT
  acpi: Some build_tpm2() code reshape
  tests/acpi: update expected data files
  acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.
  acpi: drop build_piix4_pm()
  acpi: drop serial/parallel enable bits from dsdt
  acpi: simplify build_isa_devices_aml()
  acpi: factor out fw_cfg_add_acpi_dsdt()
  acpi: move aml builder code for i8042 (kbd+mouse) device
  floppy: move cmos_get_fd_drive_type() from pc
  floppy: make isa_fdc_get_drive_max_chs static
  acpi: move aml builder code for floppy device
  acpi: bios-tables-test: show more context on asl diffs
  qtest: allow DSDT acpi table changes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

4 files changed, 35 insertions, 229 deletions

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 900f786d08..378515df66 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -938,121 +938,6 @@ static void build_hpet_aml(Aml *table)
     aml_append(table, scope);
 }
 
-static Aml *build_fdinfo_aml(int idx, FloppyDriveType type)
-{
-    Aml *dev, *fdi;
-    uint8_t maxc, maxh, maxs;
-
-    isa_fdc_get_drive_max_chs(type, &maxc, &maxh, &maxs);
-
-    dev = aml_device("FLP%c", 'A' + idx);
-
-    aml_append(dev, aml_name_decl("_ADR", aml_int(idx)));
-
-    fdi = aml_package(16);
-    aml_append(fdi, aml_int(idx));  /* Drive Number */
-    aml_append(fdi,
-        aml_int(cmos_get_fd_drive_type(type)));  /* Device Type */
-    /*
-     * the values below are the limits of the drive, and are thus independent
-     * of the inserted media
-     */
-    aml_append(fdi, aml_int(maxc));  /* Maximum Cylinder Number */
-    aml_append(fdi, aml_int(maxs));  /* Maximum Sector Number */
-    aml_append(fdi, aml_int(maxh));  /* Maximum Head Number */
-    /*
-     * SeaBIOS returns the below values for int 0x13 func 0x08 regardless of
-     * the drive type, so shall we
-     */
-    aml_append(fdi, aml_int(0xAF));  /* disk_specify_1 */
-    aml_append(fdi, aml_int(0x02));  /* disk_specify_2 */
-    aml_append(fdi, aml_int(0x25));  /* disk_motor_wait */
-    aml_append(fdi, aml_int(0x02));  /* disk_sector_siz */
-    aml_append(fdi, aml_int(0x12));  /* disk_eot */
-    aml_append(fdi, aml_int(0x1B));  /* disk_rw_gap */
-    aml_append(fdi, aml_int(0xFF));  /* disk_dtl */
-    aml_append(fdi, aml_int(0x6C));  /* disk_formt_gap */
-    aml_append(fdi, aml_int(0xF6));  /* disk_fill */
-    aml_append(fdi, aml_int(0x0F));  /* disk_head_sttl */
-    aml_append(fdi, aml_int(0x08));  /* disk_motor_strt */
-
-    aml_append(dev, aml_name_decl("_FDI", fdi));
-    return dev;
-}
-
-static Aml *build_fdc_device_aml(ISADevice *fdc)
-{
-    int i;
-    Aml *dev;
-    Aml *crs;
-
-#define ACPI_FDE_MAX_FD 4
-    uint32_t fde_buf[5] = {
-        0, 0, 0, 0,     /* presence of floppy drives #0 - #3 */
-        cpu_to_le32(2)  /* tape presence (2 == never present) */
-    };
-
-    dev = aml_device("FDC0");
-    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0700")));
-
-    crs = aml_resource_template();
-    aml_append(crs, aml_io(AML_DECODE16, 0x03F2, 0x03F2, 0x00, 0x04));
-    aml_append(crs, aml_io(AML_DECODE16, 0x03F7, 0x03F7, 0x00, 0x01));
-    aml_append(crs, aml_irq_no_flags(6));
-    aml_append(crs,
-        aml_dma(AML_COMPATIBILITY, AML_NOTBUSMASTER, AML_TRANSFER8, 2));
-    aml_append(dev, aml_name_decl("_CRS", crs));
-
-    for (i = 0; i < MIN(MAX_FD, ACPI_FDE_MAX_FD); i++) {
-        FloppyDriveType type = isa_fdc_get_drive_type(fdc, i);
-
-        if (type < FLOPPY_DRIVE_TYPE_NONE) {
-            fde_buf[i] = cpu_to_le32(1);  /* drive present */
-            aml_append(dev, build_fdinfo_aml(i, type));
-        }
-    }
-    aml_append(dev, aml_name_decl("_FDE",
-               aml_buffer(sizeof(fde_buf), (uint8_t *)fde_buf)));
-
-    return dev;
-}
-
-static Aml *build_kbd_device_aml(void)
-{
-    Aml *dev;
-    Aml *crs;
-
-    dev = aml_device("KBD");
-    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0303")));
-
-    aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
-
-    crs = aml_resource_template();
-    aml_append(crs, aml_io(AML_DECODE16, 0x0060, 0x0060, 0x01, 0x01));
-    aml_append(crs, aml_io(AML_DECODE16, 0x0064, 0x0064, 0x01, 0x01));
-    aml_append(crs, aml_irq_no_flags(1));
-    aml_append(dev, aml_name_decl("_CRS", crs));
-
-    return dev;
-}
-
-static Aml *build_mouse_device_aml(void)
-{
-    Aml *dev;
-    Aml *crs;
-
-    dev = aml_device("MOU");
-    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0F13")));
-
-    aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
-
-    crs = aml_resource_template();
-    aml_append(crs, aml_irq_no_flags(12));
-    aml_append(dev, aml_name_decl("_CRS", crs));
-
-    return dev;
-}
-
 static Aml *build_vmbus_device_aml(VMBusBridge *vmbus_bridge)
 {
     Aml *dev;
@@ -1092,27 +977,16 @@ static Aml *build_vmbus_device_aml(VMBusBridge *vmbus_bridge)
 
 static void build_isa_devices_aml(Aml *table)
 {
-    ISADevice *fdc = pc_find_fdc0();
     VMBusBridge *vmbus_bridge = vmbus_bridge_find();
     bool ambiguous;
-
-    Aml *scope = aml_scope("_SB.PCI0.ISA");
     Object *obj = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous);
+    Aml *scope;
 
-    aml_append(scope, build_kbd_device_aml());
-    aml_append(scope, build_mouse_device_aml());
-    if (fdc) {
-        aml_append(scope, build_fdc_device_aml(fdc));
-    }
+    assert(obj && !ambiguous);
 
-    if (ambiguous) {
-        error_report("Multiple ISA busses, unable to define IPMI ACPI data");
-    } else if (!obj) {
-        error_report("No ISA bus, unable to define IPMI ACPI data");
-    } else {
-        build_acpi_ipmi_devices(scope, BUS(obj), "\\_SB.PCI0.ISA");
-        isa_build_aml(ISA_BUS(obj), scope);
-    }
+    scope = aml_scope("_SB.PCI0.ISA");
+    build_acpi_ipmi_devices(scope, BUS(obj), "\\_SB.PCI0.ISA");
+    isa_build_aml(ISA_BUS(obj), scope);
 
     if (vmbus_bridge) {
         aml_append(scope, build_vmbus_device_aml(vmbus_bridge));
@@ -1466,7 +1340,6 @@ static void build_q35_isa_bridge(Aml *table)
 {
     Aml *dev;
     Aml *scope;
-    Aml *field;
 
     scope =  aml_scope("_SB.PCI0");
     dev = aml_device("ISA");
@@ -1476,40 +1349,6 @@ static void build_q35_isa_bridge(Aml *table)
     aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG,
                                          aml_int(0x60), 0x0C));
 
-    aml_append(dev, aml_operation_region("LPCD", AML_PCI_CONFIG,
-                                         aml_int(0x80), 0x02));
-    field = aml_field("LPCD", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
-    aml_append(field, aml_named_field("COMA", 3));
-    aml_append(field, aml_reserved_field(1));
-    aml_append(field, aml_named_field("COMB", 3));
-    aml_append(field, aml_reserved_field(1));
-    aml_append(field, aml_named_field("LPTD", 2));
-    aml_append(dev, field);
-
-    aml_append(dev, aml_operation_region("LPCE", AML_PCI_CONFIG,
-                                         aml_int(0x82), 0x02));
-    /* enable bits */
-    field = aml_field("LPCE", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
-    aml_append(field, aml_named_field("CAEN", 1));
-    aml_append(field, aml_named_field("CBEN", 1));
-    aml_append(field, aml_named_field("LPEN", 1));
-    aml_append(dev, field);
-
-    aml_append(scope, dev);
-    aml_append(table, scope);
-}
-
-static void build_piix4_pm(Aml *table)
-{
-    Aml *dev;
-    Aml *scope;
-
-    scope =  aml_scope("_SB.PCI0");
-    dev = aml_device("PX13");
-    aml_append(dev, aml_name_decl("_ADR", aml_int(0x00010003)));
-
-    aml_append(dev, aml_operation_region("P13C", AML_PCI_CONFIG,
-                                         aml_int(0x00), 0xff));
     aml_append(scope, dev);
     aml_append(table, scope);
 }
@@ -1518,7 +1357,6 @@ static void build_piix4_isa_bridge(Aml *table)
 {
     Aml *dev;
     Aml *scope;
-    Aml *field;
 
     scope =  aml_scope("_SB.PCI0");
     dev = aml_device("ISA");
@@ -1527,19 +1365,6 @@ static void build_piix4_isa_bridge(Aml *table)
     /* PIIX PCI to ISA irq remapping */
     aml_append(dev, aml_operation_region("P40C", AML_PCI_CONFIG,
                                          aml_int(0x60), 0x04));
-    /* enable bits */
-    field = aml_field("^PX13.P13C", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
-    /* Offset(0x5f),, 7, */
-    aml_append(field, aml_reserved_field(0x2f8));
-    aml_append(field, aml_reserved_field(7));
-    aml_append(field, aml_named_field("LPEN", 1));
-    /* Offset(0x67),, 3, */
-    aml_append(field, aml_reserved_field(0x38));
-    aml_append(field, aml_reserved_field(3));
-    aml_append(field, aml_named_field("CAEN", 1));
-    aml_append(field, aml_reserved_field(3));
-    aml_append(field, aml_named_field("CBEN", 1));
-    aml_append(dev, field);
 
     aml_append(scope, dev);
     aml_append(table, scope);
@@ -1679,7 +1504,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
         aml_append(dsdt, sb_scope);
 
         build_hpet_aml(dsdt);
-        build_piix4_pm(dsdt);
         build_piix4_isa_bridge(dsdt);
         build_isa_devices_aml(dsdt);
         build_piix4_pci_hotplug(dsdt);
@@ -1924,30 +1748,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
 
     /* create fw_cfg node, unconditionally */
     {
-        /* when using port i/o, the 8-bit data register *always* overlaps
-         * with half of the 16-bit control register. Hence, the total size
-         * of the i/o region used is FW_CFG_CTL_SIZE; when using DMA, the
-         * DMA control register is located at FW_CFG_DMA_IO_BASE + 4 */
-        uint8_t io_size = object_property_get_bool(OBJECT(x86ms->fw_cfg),
-                                                   "dma_enabled", NULL) ?
-                          ROUND_UP(FW_CFG_CTL_SIZE, 4) + sizeof(dma_addr_t) :
-                          FW_CFG_CTL_SIZE;
-
         scope = aml_scope("\\_SB.PCI0");
-        dev = aml_device("FWCF");
-
-        aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0002")));
-
-        /* 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, FW_CFG_IO_BASE, FW_CFG_IO_BASE, 0x01, io_size)
-        );
-        aml_append(dev, aml_name_decl("_CRS", crs));
-
-        aml_append(scope, dev);
+        fw_cfg_add_acpi_dsdt(scope, x86ms->fw_cfg);
         aml_append(dsdt, scope);
     }
 
diff --git a/hw/i386/fw_cfg.c b/hw/i386/fw_cfg.c
index da60ada594..c55abfb01a 100644
--- a/hw/i386/fw_cfg.c
+++ b/hw/i386/fw_cfg.c
@@ -15,6 +15,7 @@
 #include "qemu/osdep.h"
 #include "sysemu/numa.h"
 #include "hw/acpi/acpi.h"
+#include "hw/acpi/aml-build.h"
 #include "hw/firmware/smbios.h"
 #include "hw/i386/fw_cfg.h"
 #include "hw/timer/hpet.h"
@@ -179,3 +180,30 @@ void fw_cfg_build_feature_control(MachineState *ms, FWCfgState *fw_cfg)
     *val = cpu_to_le64(feature_control_bits | FEATURE_CONTROL_LOCKED);
     fw_cfg_add_file(fw_cfg, "etc/msr_feature_control", val, sizeof(*val));
 }
+
+void fw_cfg_add_acpi_dsdt(Aml *scope, FWCfgState *fw_cfg)
+{
+    /*
+     * when using port i/o, the 8-bit data register *always* overlaps
+     * with half of the 16-bit control register. Hence, the total size
+     * of the i/o region used is FW_CFG_CTL_SIZE; when using DMA, the
+     * DMA control register is located at FW_CFG_DMA_IO_BASE + 4
+     */
+    Object *obj = OBJECT(fw_cfg);
+    uint8_t io_size = object_property_get_bool(obj, "dma_enabled", NULL) ?
+        ROUND_UP(FW_CFG_CTL_SIZE, 4) + sizeof(dma_addr_t) :
+        FW_CFG_CTL_SIZE;
+    Aml *dev = aml_device("FWCF");
+    Aml *crs = aml_resource_template();
+
+    aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0002")));
+
+    /* device present, functioning, decoding, not shown in UI */
+    aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
+
+    aml_append(crs,
+        aml_io(AML_DECODE16, FW_CFG_IO_BASE, FW_CFG_IO_BASE, 0x01, io_size));
+
+    aml_append(dev, aml_name_decl("_CRS", crs));
+    aml_append(scope, dev);
+}
diff --git a/hw/i386/fw_cfg.h b/hw/i386/fw_cfg.h
index 9e74278779..275f15c1c5 100644
--- a/hw/i386/fw_cfg.h
+++ b/hw/i386/fw_cfg.h
@@ -25,5 +25,6 @@ FWCfgState *fw_cfg_arch_create(MachineState *ms,
                                uint16_t apic_id_limit);
 void fw_cfg_build_smbios(MachineState *ms, FWCfgState *fw_cfg);
 void fw_cfg_build_feature_control(MachineState *ms, FWCfgState *fw_cfg);
+void fw_cfg_add_acpi_dsdt(Aml *scope, FWCfgState *fw_cfg);
 
 #endif
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index f670bcd6e6..803bd52ca4 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -386,31 +386,6 @@ static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
 
 #define REG_EQUIPMENT_BYTE          0x14
 
-int cmos_get_fd_drive_type(FloppyDriveType fd0)
-{
-    int val;
-
-    switch (fd0) {
-    case FLOPPY_DRIVE_TYPE_144:
-        /* 1.44 Mb 3"5 drive */
-        val = 4;
-        break;
-    case FLOPPY_DRIVE_TYPE_288:
-        /* 2.88 Mb 3"5 drive */
-        val = 5;
-        break;
-    case FLOPPY_DRIVE_TYPE_120:
-        /* 1.2 Mb 5"5 drive */
-        val = 2;
-        break;
-    case FLOPPY_DRIVE_TYPE_NONE:
-    default:
-        val = 0;
-        break;
-    }
-    return val;
-}
-
 static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
                          int16_t cylinders, int8_t heads, int8_t sectors)
 {