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HV: Defining the per-vm static vpci table for partition hypervisor

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V4:
- Renamed members for struct pcibar
- License header fix
- Added vpci_vdev_array to struct vm_description

V3:
 - Defined the static centralized vpci table to reduce code size,
   previously many of the settings are obtained/generated dynamically

Reviewed-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
This commit is contained in:
dongshen
2018-08-07 17:50:42 -07:00
committed by lijinxia
parent 2b22e88b51
commit f60fcb6b16
3 changed files with 235 additions and 0 deletions
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95
hypervisor/include/dm/vpci/vpci.h Normal file
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/*-
* Copyright (c) 2011 NetApp, Inc.
* Copyright (c) 2018 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef VPCI_H_
#define VPCI_H_
#define PCI_BAR_COUNT 0x6U
#define PCI_REGMAX 0xFFU
#define PCIM_BAR_MEM_32 0U
#define PCIM_BAR_MEM_64 4U
#define PCI_BDF(b, d, f) (((b & 0xFFU) << 8) \
| ((d & 0x1FU) << 3) | ((f & 0x7U)))
#define ALIGN_UP(x, y) (((x)+((y)-1))&(~((y)-1U)))
#define ALIGN_UP_4K(x) ALIGN_UP(x, 4096)
struct pci_vdev;
struct pci_vdev_ops {
int (*init)(struct pci_vdev *vdev);
int (*deinit)(struct pci_vdev *vdev);
int (*cfgwrite)(struct pci_vdev *vdev, uint32_t offset,
uint32_t bytes, uint32_t val);
int (*cfgread)(struct pci_vdev *vdev, uint32_t offset,
uint32_t bytes, uint32_t *val);
};
struct pcibar {
uint64_t base;
uint64_t size;
uint8_t type;
};
struct pci_pdev {
/* The bar info of the physical PCI device. */
struct pcibar bar[PCI_BAR_COUNT];
/* The bus/device/function triple of the physical PCI device. */
uint16_t bdf;
};
struct pci_vdev {
struct pci_vdev_ops *ops;
struct vpci *vpci;
/* The bus/device/function triple of the virtual PCI device. */
uint16_t vbdf;
struct pci_pdev pdev;
uint8_t cfgdata[PCI_REGMAX + 1U];
/* The bar info of the virtual PCI device. */
struct pcibar bar[PCI_BAR_COUNT];
};
struct pci_addr_info {
uint16_t cached_bdf;
uint32_t cached_reg, cached_enable;
};
struct vpci {
struct vm *vm;
struct pci_addr_info addr_info;
};
#endif /* VPCI_H_ */