From: minyard@acm.org
To: qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>,
Corey Minyard <cminyard@mvista.com>,
"Michael S . Tsirkin" <mst@redhat.com>,
Shannon Zhao <shannon.zhaosl@gmail.com>,
wanghaibin.wang@huawei.com, Igor Mammedov <imammedo@redhat.com>
Subject: [PATCH] i386:acpi: Remove _HID from the SMBus ACPI entry
Date: Mon, 6 Jan 2020 09:27:05 -0600 [thread overview]
Message-ID: <20200106152705.8258-1-minyard@acm.org> (raw)
From: Corey Minyard <cminyard@mvista.com>
Per the ACPI spec (version 6.1, section 6.1.5 _HID) it is not required
on enumerated buses (like PCI in this case), _ADR is required (and is
already there). And the _HID value is wrong. Linux appears to ignore
the _HID entry, but it confuses Windows.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
---
hw/i386/acpi-build.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 7b8da62d41..ab73a8f4c8 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1815,7 +1815,6 @@ static void build_smb0(Aml *table, I2CBus *smbus, int devnr, int func)
Aml *scope = aml_scope("_SB.PCI0");
Aml *dev = aml_device("SMB0");
- aml_append(dev, aml_name_decl("_HID", aml_eisaid("APP0005")));
aml_append(dev, aml_name_decl("_ADR", aml_int(devnr << 16 | func)));
build_acpi_ipmi_devices(dev, BUS(smbus), "\\_SB.PCI0.SMB0");
aml_append(scope, dev);
--
2.17.1
next reply other threads:[~2020-01-06 15:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-06 15:27 minyard [this message]
2020-01-07 15:52 ` [PATCH] i386:acpi: Remove _HID from the SMBus ACPI entry Igor Mammedov
2020-01-07 16:58 ` Igor Mammedov
2020-01-07 20:11 ` Corey Minyard
2020-01-13 14:05 ` Michael S. Tsirkin
2020-01-13 14:42 ` minyard
2020-01-13 16:08 ` no-reply
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