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https://github.com/projectacrn/acrn-hypervisor.git
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73cff9ef08
For pre-launched VMs, currently we set all vbars to 0s initially in bar emulation code, guest OS will reprogram the bars when it sees the bars are uninited (0s). We consider this is not the right solution, change to populate the vbars (to non zero valid pci hole address) based on the vbar base addresses predefined in vm_config. Store a pointer to acrn_vm_pci_ptdev_config in struct pci_vdev Tracked-On: #3022 Signed-off-by: dongshen <dongsheng.x.zhang@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* Copyright (c) 2018 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef VPCI_H_
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#define VPCI_H_
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#include <pci.h>
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struct msix_table_entry {
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uint64_t addr;
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uint32_t data;
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uint32_t vector_control;
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};
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/* MSI capability structure */
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struct pci_msi {
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uint32_t capoff;
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uint32_t caplen;
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};
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/* MSI-X capability structure */
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struct pci_msix {
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struct msix_table_entry tables[CONFIG_MAX_MSIX_TABLE_NUM];
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uint64_t mmio_gpa;
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uint64_t mmio_hpa;
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uint64_t mmio_size;
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uint32_t capoff;
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uint32_t caplen;
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uint32_t table_bar;
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uint32_t table_offset;
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uint32_t table_count;
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};
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union pci_cfgdata {
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uint8_t data_8[PCI_REGMAX + 1U];
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uint16_t data_16[(PCI_REGMAX + 1U) >> 2U];
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uint32_t data_32[(PCI_REGMAX + 1U) >> 4U];
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};
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struct pci_vdev {
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const struct acrn_vpci *vpci;
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/* The bus/device/function triple of the virtual PCI device. */
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union pci_bdf vbdf;
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struct pci_pdev *pdev;
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union pci_cfgdata cfgdata;
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/* The bar info of the virtual PCI device. */
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struct pci_bar bar[PCI_BAR_COUNT];
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struct pci_msi msi;
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struct pci_msix msix;
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/* Pointer to corresponding PCI PT device's vm_config */
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struct acrn_vm_pci_ptdev_config *ptdev_config;
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};
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struct pci_addr_info {
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union pci_bdf cached_bdf;
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uint32_t cached_reg;
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bool cached_enable;
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};
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struct acrn_vpci {
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struct acrn_vm *vm;
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struct pci_addr_info addr_info;
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uint32_t pci_vdev_cnt;
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struct pci_vdev pci_vdevs[CONFIG_MAX_PCI_DEV_NUM];
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};
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void vpci_init(struct acrn_vm *vm);
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void vpci_cleanup(const struct acrn_vm *vm);
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void vpci_set_ptdev_intr_info(const struct acrn_vm *target_vm, uint16_t vbdf, uint16_t pbdf);
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void vpci_reset_ptdev_intr_info(const struct acrn_vm *target_vm, uint16_t vbdf, uint16_t pbdf);
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#endif /* VPCI_H_ */
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