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

virtio, vhost, acpi: features, fixes, tests

ARM ACPI memory hotplug support +
tests for new arm/virt ACPI tables.

Virtio fs support (no migration).
A vhost-user reconnect bugfix.

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

# gpg: Signature made Tue 15 Oct 2019 22:02:19 BST
# gpg:                using RSA key 281F0DB8D28D5469
# 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:
  virtio: add vhost-user-fs-pci device
  virtio: add vhost-user-fs base device
  virtio: Add virtio_fs linux headers
  tests/acpi: add expected tables for arm/virt
  tests: document how to update acpi tables
  tests: Add bios tests to arm/virt
  tests: allow empty expected files
  tests/acpi: add empty files
  tests: Update ACPI tables list for upcoming arm/virt tests
  docs/specs: Add ACPI GED documentation
  hw/arm: Use GED for system_powerdown event
  hw/arm: Factor out powerdown notifier from GPIO
  hw/arm/virt-acpi-build: Add PC-DIMM in SRAT
  hw/arm/virt: Enable device memory cold/hot plug with ACPI boot
  hw/arm/virt: Add memory hotplug framework
  hw/acpi: Add ACPI Generic Event Device Support
  hw/acpi: Do not create memory hotplug method when handler is not defined
  hw/acpi: Make ACPI IO address space configurable
  vhost-user: save features if the char dev is closed

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

17 files changed, 80 insertions, 1 deletions

diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c
index 9b3d8b0d1b..0b33fb265f 100644
--- a/tests/bios-tables-test.c
+++ b/tests/bios-tables-test.c
@@ -10,6 +10,33 @@
  * See the COPYING file in the top-level directory.
  */
 
+/*
+ * How to add or update the tests:
+ * Contributor:
+ * 1. add empty files for new tables, if any, under tests/data/acpi
+ * 2. list any changed files in tests/bios-tables-test-allowed-diff.h
+ * 3. commit the above *before* making changes that affect the tables
+ * Maintainer:
+ * After 1-3 above tests will pass but ignore differences with the expected files.
+ * You will also notice that tests/bios-tables-test-allowed-diff.h lists
+ * a bunch of files. This is your hint that you need to do the below:
+ * 4. Run
+ *      make check V=1
+ * this will produce a bunch of warnings about differences
+ * beween actual and expected ACPI tables. If you have IASL installed,
+ * they will also be disassembled so you can look at the disassembled
+ * output. If not - disassemble them yourself in any way you like.
+ * Look at the differences - make sure they make sense and match what the
+ * changes you are merging are supposed to do.
+ *
+ * 5. From build directory, run:
+ *      $(SRC_PATH)/tests/data/acpi/rebuild-expected-aml.sh
+ * 6. Now commit any changes.
+ * 7. Before doing a pull request, make sure tests/bios-tables-test-allowed-diff.h
+ *    is empty - this will ensure following changes to ACPI tables will
+ *    be noticed.
+ */
+
 #include "qemu/osdep.h"
 #include <glib/gstdio.h>
 #include "qemu-common.h"
@@ -334,7 +361,10 @@ try_again:
         g_assert(ret);
         g_assert_no_error(error);
         g_assert(exp_sdt.aml);
-        g_assert(exp_sdt.aml_len);
+        if (!exp_sdt.aml_len) {
+            fprintf(stderr, "Warning! zero length expected file '%s'\n",
+                    aml_file);
+        }
 
         g_array_append_val(exp_tables, exp_sdt);
     }
@@ -870,6 +900,53 @@ static void test_acpi_piix4_tcg_dimm_pxm(void)
     test_acpi_tcg_dimm_pxm(MACHINE_PC);
 }
 
+static void test_acpi_virt_tcg_memhp(void)
+{
+    test_data data = {
+        .machine = "virt",
+        .accel = "tcg",
+        .uefi_fl1 = "pc-bios/edk2-aarch64-code.fd",
+        .uefi_fl2 = "pc-bios/edk2-arm-vars.fd",
+        .cd = "tests/data/uefi-boot-images/bios-tables-test.aarch64.iso.qcow2",
+        .ram_start = 0x40000000ULL,
+        .scan_len = 256ULL * 1024 * 1024,
+    };
+
+    data.variant = ".memhp";
+    test_acpi_one(" -cpu cortex-a57"
+                  " -m 256M,slots=3,maxmem=1G"
+                  " -object memory-backend-ram,id=ram0,size=128M"
+                  " -object memory-backend-ram,id=ram1,size=128M"
+                  " -numa node,memdev=ram0 -numa node,memdev=ram1"
+                  " -numa dist,src=0,dst=1,val=21",
+                  &data);
+
+    free_test_data(&data);
+
+}
+
+static void test_acpi_virt_tcg_numamem(void)
+{
+    test_data data = {
+        .machine = "virt",
+        .accel = "tcg",
+        .uefi_fl1 = "pc-bios/edk2-aarch64-code.fd",
+        .uefi_fl2 = "pc-bios/edk2-arm-vars.fd",
+        .cd = "tests/data/uefi-boot-images/bios-tables-test.aarch64.iso.qcow2",
+        .ram_start = 0x40000000ULL,
+        .scan_len = 128ULL * 1024 * 1024,
+    };
+
+    data.variant = ".numamem";
+    test_acpi_one(" -cpu cortex-a57"
+                  " -object memory-backend-ram,id=ram0,size=128M"
+                  " -numa node,memdev=ram0",
+                  &data);
+
+    free_test_data(&data);
+
+}
+
 static void test_acpi_virt_tcg(void)
 {
     test_data data = {
@@ -916,6 +993,8 @@ int main(int argc, char *argv[])
         qtest_add_func("acpi/q35/dimmpxm", test_acpi_q35_tcg_dimm_pxm);
     } else if (strcmp(arch, "aarch64") == 0) {
         qtest_add_func("acpi/virt", test_acpi_virt_tcg);
+        qtest_add_func("acpi/virt/numamem", test_acpi_virt_tcg_numamem);
+        qtest_add_func("acpi/virt/memhp", test_acpi_virt_tcg_memhp);
     }
     ret = g_test_run();
     boot_sector_cleanup(disk);
diff --git a/tests/data/acpi/virt/APIC.memhp b/tests/data/acpi/virt/APIC.memhp
new file mode 100644
index 0000000000..797dfde284
--- /dev/null
+++ b/tests/data/acpi/virt/APIC.memhp
diff --git a/tests/data/acpi/virt/APIC.numamem b/tests/data/acpi/virt/APIC.numamem
new file mode 100644
index 0000000000..797dfde284
--- /dev/null
+++ b/tests/data/acpi/virt/APIC.numamem
diff --git a/tests/data/acpi/virt/DSDT b/tests/data/acpi/virt/DSDT
index 20e85c7f89..bce76e3d23 100644
--- a/tests/data/acpi/virt/DSDT
+++ b/tests/data/acpi/virt/DSDT
diff --git a/tests/data/acpi/virt/DSDT.memhp b/tests/data/acpi/virt/DSDT.memhp
new file mode 100644
index 0000000000..b4b153fcdc
--- /dev/null
+++ b/tests/data/acpi/virt/DSDT.memhp
diff --git a/tests/data/acpi/virt/DSDT.numamem b/tests/data/acpi/virt/DSDT.numamem
new file mode 100644
index 0000000000..bce76e3d23
--- /dev/null
+++ b/tests/data/acpi/virt/DSDT.numamem
diff --git a/tests/data/acpi/virt/FACP.memhp b/tests/data/acpi/virt/FACP.memhp
new file mode 100644
index 0000000000..27de99f51b
--- /dev/null
+++ b/tests/data/acpi/virt/FACP.memhp
diff --git a/tests/data/acpi/virt/FACP.numamem b/tests/data/acpi/virt/FACP.numamem
new file mode 100644
index 0000000000..27de99f51b
--- /dev/null
+++ b/tests/data/acpi/virt/FACP.numamem
diff --git a/tests/data/acpi/virt/GTDT.memhp b/tests/data/acpi/virt/GTDT.memhp
new file mode 100644
index 0000000000..10107a65e9
--- /dev/null
+++ b/tests/data/acpi/virt/GTDT.memhp
diff --git a/tests/data/acpi/virt/GTDT.numamem b/tests/data/acpi/virt/GTDT.numamem
new file mode 100644
index 0000000000..10107a65e9
--- /dev/null
+++ b/tests/data/acpi/virt/GTDT.numamem
diff --git a/tests/data/acpi/virt/MCFG.memhp b/tests/data/acpi/virt/MCFG.memhp
new file mode 100644
index 0000000000..e8987e1af0
--- /dev/null
+++ b/tests/data/acpi/virt/MCFG.memhp
diff --git a/tests/data/acpi/virt/MCFG.numamem b/tests/data/acpi/virt/MCFG.numamem
new file mode 100644
index 0000000000..e8987e1af0
--- /dev/null
+++ b/tests/data/acpi/virt/MCFG.numamem
diff --git a/tests/data/acpi/virt/SLIT.memhp b/tests/data/acpi/virt/SLIT.memhp
new file mode 100644
index 0000000000..74ec3b4b46
--- /dev/null
+++ b/tests/data/acpi/virt/SLIT.memhp
diff --git a/tests/data/acpi/virt/SPCR.memhp b/tests/data/acpi/virt/SPCR.memhp
new file mode 100644
index 0000000000..377271a0e7
--- /dev/null
+++ b/tests/data/acpi/virt/SPCR.memhp
diff --git a/tests/data/acpi/virt/SPCR.numamem b/tests/data/acpi/virt/SPCR.numamem
new file mode 100644
index 0000000000..377271a0e7
--- /dev/null
+++ b/tests/data/acpi/virt/SPCR.numamem
diff --git a/tests/data/acpi/virt/SRAT.memhp b/tests/data/acpi/virt/SRAT.memhp
new file mode 100644
index 0000000000..1b57db2072
--- /dev/null
+++ b/tests/data/acpi/virt/SRAT.memhp
diff --git a/tests/data/acpi/virt/SRAT.numamem b/tests/data/acpi/virt/SRAT.numamem
new file mode 100644
index 0000000000..9526e5a28e
--- /dev/null
+++ b/tests/data/acpi/virt/SRAT.numamem