328a11a08a
This commit adds XTSup configuration to let user choose to whether enable this feature or not. When XTSup is enabled, additional bytes in IRTE with enabled guest virtual VAPIC are used to support 32-bit destination id. Additionally, this commit exports IVHD type 0x11 besides the old IVHD type 0x10 in ACPI table. IVHD type 0x10 does not report full set of IOMMU features only the legacy ones, so operating system (e.g. Linux) may only detects x2APIC support if IVHD type 0x11 is available. The IVHD type 0x10 is kept so that old operating system that only parses type 0x10 can detect the IOMMU device. Besides, an amd_iommu-stub.c file is created to provide the definition for amdvi_extended_feature_register when CONFIG_AMD_IOMMU=n. This function is used by acpi-build.c to get the extended feature register value for building the ACPI table. When CONFIG_AMD_IOMMU=y, this function is defined in amd_iommu.c. Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> Message-Id: <20240111154404.5333-7-minhquangbui99@gmail.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
27 lines
899 B
C
27 lines
899 B
C
/*
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* Stubs for AMD IOMMU emulation
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*
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* Copyright (C) 2023 Bui Quang Minh <minhquangbui99@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "amd_iommu.h"
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uint64_t amdvi_extended_feature_register(AMDVIState *s)
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{
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return AMDVI_DEFAULT_EXT_FEATURES;
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}
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