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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [qemu-xen stable-4.16] tests/acpi/pcihp: add unit tests for hotplug on multifunction bridges for q35
commit 8319de607faa33113ec9b47778da77e7ad4d9c8b
Author: Ani Sinha <ani@xxxxxxxxxxx>
AuthorDate: Thu Oct 7 19:27:49 2021 +0530
Commit: Michael Roth <michael.roth@xxxxxxx>
CommitDate: Tue Dec 14 14:05:20 2021 -0600
tests/acpi/pcihp: add unit tests for hotplug on multifunction bridges for
q35
commit d7346e614f4ec ("acpi: x86: pcihp: add support hotplug on
multifunction bridges")
added ACPI hotplug descriptions for cold plugged bridges for functions other
than 0. For all other devices, the ACPI hotplug descriptions are limited to
function 0 only. This change adds unit tests for this feature.
This test adds the following devices to qemu and then checks the changes
introduced in the DSDT table due to the addition of the following devices:
(a) a multifunction bridge device
(b) a bridge device with function 1
(c) a non-bridge device with function 2
In the DSDT table, we should see AML hotplug descriptions for (a) and (b).
For (a) we should find a hotplug AML description for function 0.
The following diff compares the DSDT table AML with the new unit test before
and after the change d7346e614f4ec is introduced. In other words,
this diff reflects the changes that occurs in the DSDT table due to the
change
d7346e614f4ec .
@@ -1,60 +1,38 @@
/*
* Intel ACPI Component Architecture
* AML/ASL+ Disassembler version 20190509 (64-bit version)
* Copyright (c) 2000 - 2019 Intel Corporation
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of tests/data/acpi/q35/DSDT.multi-bridge, Thu Oct 7
18:56:05 2021
+ * Disassembly of /tmp/aml-AN0DA1, Thu Oct 7 18:56:05 2021
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x000020FE (8446)
+ * Length 0x00002187 (8583)
* Revision 0x01 **** 32-bit table (V1), no 64-bit math support
- * Checksum 0xDE
+ * Checksum 0x8D
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
* Compiler ID "BXPC"
* Compiler Version 0x00000001 (1)
*/
DefinitionBlock ("", "DSDT", 1, "BOCHS ", "BXPC ", 0x00000001)
{
- /*
- * iASL Warning: There was 1 external control method found during
- * disassembly, but only 0 were resolved (1 unresolved). Additional
- * ACPI tables may be required to properly disassemble the code. This
- * resulting disassembler output file may not compile because the
- * disassembler did not know how many arguments to assign to the
- * unresolved methods. Note: SSDTs can be dynamically loaded at
- * runtime and may or may not be available via the host OS.
- *
- * In addition, the -fe option can be used to specify a file containing
- * control method external declarations with the associated method
- * argument counts. Each line of the file must be of the form:
- * External (<method pathname>, MethodObj, <argument count>)
- * Invocation:
- * iasl -fe refs.txt -d dsdt.aml
- *
- * The following methods were unresolved and many not compile properly
- * because the disassembler had to guess at the number of arguments
- * required for each:
- */
- External (_SB_.PCI0.S19_.PCNT, MethodObj) // Warning: Unknown
method, guessing 1 arguments
-
Scope (\)
{
OperationRegion (DBG, SystemIO, 0x0402, One)
Field (DBG, ByteAcc, NoLock, Preserve)
{
DBGB, 8
}
Method (DBUG, 1, NotSerialized)
{
ToHexString (Arg0, Local0)
ToBuffer (Local0, Local0)
Local1 = (SizeOf (Local0) - One)
Local2 = Zero
While ((Local2 < Local1))
{
@@ -3322,24 +3300,60 @@
Method (DVNT, 2, NotSerialized)
{
If ((Arg0 & One))
{
Notify (S00, Arg1)
}
}
Method (PCNT, 0, NotSerialized)
{
BNUM = One
DVNT (PCIU, One)
DVNT (PCID, 0x03)
}
}
+ Device (S19)
+ {
+ Name (_ADR, 0x00030001) // _ADR: Address
+ Name (BSEL, Zero)
+ Device (S00)
+ {
+ Name (_SUN, Zero) // _SUN: Slot User Number
+ Name (_ADR, Zero) // _ADR: Address
+ Method (_EJ0, 1, NotSerialized) // _EJx: Eject
Device, x=0-9
+ {
+ PCEJ (BSEL, _SUN)
+ }
+
+ Method (_DSM, 4, Serialized) // _DSM: Device-Specific
Method
+ {
+ Return (PDSM (Arg0, Arg1, Arg2, Arg3, BSEL, _SUN))
+ }
+ }
+
+ Method (DVNT, 2, NotSerialized)
+ {
+ If ((Arg0 & One))
+ {
+ Notify (S00, Arg1)
+ }
+ }
+
+ Method (PCNT, 0, NotSerialized)
+ {
+ BNUM = Zero
+ DVNT (PCIU, One)
+ DVNT (PCID, 0x03)
+ }
+ }
+
Method (PCNT, 0, NotSerialized)
{
- ^S19.PCNT (^S10.PCNT ())
+ ^S19.PCNT ()
+ ^S10.PCNT ()
}
}
}
}
Signed-off-by: Ani Sinha <ani@xxxxxxxxxxx>
Message-Id: <20211007135750.1277213-3-ani@xxxxxxxxxxx>
Reviewed-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Reviewed-by: Igor Mammedov <imammedo@xxxxxxxxxx>
(cherry picked from commit 04dd78b9e85720226a148eef54b45cb02b463034)
Signed-off-by: Michael Roth <michael.roth@xxxxxxx>
---
tests/qtest/bios-tables-test.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index 51d3a4e239..921f676e4c 100644
--- a/tests/qtest/bios-tables-test.c
+++ b/tests/qtest/bios-tables-test.c
@@ -859,6 +859,23 @@ static void test_acpi_q35_tcg_bridge(void)
free_test_data(&data);
}
+static void test_acpi_q35_multif_bridge(void)
+{
+ test_data data = {
+ .machine = MACHINE_Q35,
+ .variant = ".multi-bridge",
+ };
+ test_acpi_one("-device pcie-root-port,id=pcie-root-port-0,"
+ "multifunction=on,"
+ "port=0x0,chassis=1,addr=0x2,bus=pcie.0 "
+ "-device pcie-root-port,id=pcie-root-port-1,"
+ "port=0x1,chassis=2,addr=0x3.0x1,bus=pcie.0 "
+ "-device virtio-balloon,id=balloon0,"
+ "bus=pcie.0,addr=0x4.0x2",
+ &data);
+ free_test_data(&data);
+}
+
static void test_acpi_q35_tcg_mmio64(void)
{
test_data data = {
@@ -1528,6 +1545,7 @@ int main(int argc, char *argv[])
test_acpi_piix4_no_acpi_pci_hotplug);
qtest_add_func("acpi/q35", test_acpi_q35_tcg);
qtest_add_func("acpi/q35/bridge", test_acpi_q35_tcg_bridge);
+ qtest_add_func("acpi/q35/multif-bridge", test_acpi_q35_multif_bridge);
qtest_add_func("acpi/q35/mmio64", test_acpi_q35_tcg_mmio64);
qtest_add_func("acpi/piix4/ipmi", test_acpi_piix4_tcg_ipmi);
qtest_add_func("acpi/q35/ipmi", test_acpi_q35_tcg_ipmi);
--
generated by git-patchbot for /home/xen/git/qemu-xen.git#stable-4.16
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