From aefcaf9d1b3ebb30981627bd08f595211a648a62 Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Mon, 20 Jan 2020 11:07:25 -0600 Subject: i386:acpi: Remove _HID from the SMBus ACPI entry 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 Windows 10 detects it as 'Unknown Device' and there is no driver available. See https://bugs.launchpad.net/qemu/+bug/1856724 Signed-off-by: Corey Minyard Cc: Michael S. Tsirkin Cc: Igor Mammedov Reviewed-by: Igor Mammedov Message-Id: <20200120170725.24935-6-minyard@acm.org> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/i386/acpi-build.c | 1 - 1 file changed, 1 deletion(-) (limited to 'hw') diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index e25df838f0..9c4e46fa74 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1816,7 +1816,6 @@ 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); -- cgit v1.2.3