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hv: vpci: add each vdev_ops for each emulated PCI device 

Add a field (vdev_ops) in struct acrn_vm_pci_dev_config to configure a PCI CFG
operation for an emulated PCI device. Use pci_pt_dev_ops for PCI_DEV_TYPE_PTDEV
by default if there's no such configure.

Tracked-On: #3475
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Li, Fei1 2019-08-07 23:29:18 +08:00 committed by ACRN System Integration
parent ff54fa2325
commit 4c8e60f1d0
6 changed files with 14 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hypervisor/arch/x86/configs/pci_dev.c
View File

@ -7,6 +7,7 @@
#include <vm_config.h>
#include <pci.h>
#include <pci_dev.h>
#include <vpci.h>
/*
* In theory, emulated PCI device doesn't need to bind to physical PCI device.
@ -19,6 +20,7 @@ struct acrn_vm_pci_dev_config sos_pci_devs[CONFIG_MAX_PCI_DEV_NUM] = {
.emu_type = PCI_DEV_TYPE_HVEMUL,
.vbdf.bits = {.b = 0x00U, .d = 0x00U, .f = 0x00U},
.pbdf.bits = {.b = 0x00U, .d = 0x00U, .f = 0x00U},
.vdev_ops = &vhostbridge_ops,
},
};

7
hypervisor/dm/vpci/vhostbridge.c
View File

@ -122,14 +122,9 @@ static int32_t vhostbridge_write_cfg(struct pci_vdev *vdev, uint32_t offset,
return 0;
}
static const struct pci_vdev_ops vhostbridge_ops = {
const struct pci_vdev_ops vhostbridge_ops = {
.init_vdev = init_vhostbridge,
.deinit_vdev = deinit_vhostbridge,
.write_vdev_cfg = vhostbridge_write_cfg,
.read_vdev_cfg = vhostbridge_read_cfg,
};
const struct pci_vdev_ops *get_vhostbridge_ops(void)
{
return &vhostbridge_ops;
}

12
hypervisor/dm/vpci/vpci.c
View File

@ -427,13 +427,13 @@ static void vpci_init_vdev(struct acrn_vpci *vpci, struct acrn_vm_pci_dev_config
vdev->pdev = dev_config->pdev;
vdev->pci_dev_config = dev_config;
if (dev_config->emu_type == PCI_DEV_TYPE_PTDEV) {
vdev->vdev_ops = &pci_pt_dev_ops;
ASSERT(dev_config->pdev != NULL,
"PCI PTDev %x:%x.%x is not present in the platform!",
dev_config->pbdf.b, dev_config->pbdf.d, dev_config->pbdf.f);
if (dev_config->vdev_ops != NULL) {
vdev->vdev_ops = dev_config->vdev_ops;
} else {
vdev->vdev_ops = get_vhostbridge_ops();
vdev->vdev_ops = &pci_pt_dev_ops;
ASSERT(dev_config->emu_type == PCI_DEV_TYPE_PTDEV,
"Only PCI_DEV_TYPE_PTDEV could not configure vdev_ops");
ASSERT(dev_config->pdev != NULL, "PCI PTDev is not present on platform!");
}
vdev->vdev_ops->init_vdev(vdev);

1
hypervisor/include/arch/x86/vm_config.h
View File

@ -88,6 +88,7 @@ struct acrn_vm_pci_dev_config {
union pci_bdf pbdf; /* physical BDF of PCI device */
uint64_t vbar_base[PCI_BAR_COUNT]; /* vbar base address of PCI device */
struct pci_pdev *pdev; /* the physical PCI device if it's a PT device */
const struct pci_vdev_ops *vdev_ops; /* operations for PCI CFG read/write */
} __aligned(8);
struct acrn_vm_config {

3
hypervisor/include/dm/vpci.h
View File

@ -111,11 +111,10 @@ struct acrn_vpci {
struct pci_vdev pci_vdevs[CONFIG_MAX_PCI_DEV_NUM];
};
extern const struct pci_vdev_ops vhostbridge_ops;
void vpci_init(struct acrn_vm *vm);
void vpci_cleanup(const struct acrn_vm *vm);
void vpci_set_ptdev_intr_info(const struct acrn_vm *target_vm, uint16_t vbdf, uint16_t pbdf);
void vpci_reset_ptdev_intr_info(const struct acrn_vm *target_vm, uint16_t vbdf, uint16_t pbdf);
const struct pci_vdev_ops *get_vhostbridge_ops(void);
#endif /* VPCI_H_ */

3
hypervisor/scenarios/logical_partition/pci_dev.c
View File

@ -6,6 +6,7 @@
#include <vm_config.h>
#include <pci_devices.h>
#include <vpci.h>
/* The vbar_base info of pt devices is included in device MACROs which defined in
* arch/x86/configs/$(CONFIG_BOARD)/pci_devices.h.
@ -16,6 +17,7 @@ struct acrn_vm_pci_dev_config vm0_pci_devs[VM0_CONFIG_PCI_DEV_NUM] = {
{
.emu_type = PCI_DEV_TYPE_HVEMUL,
.vbdf.bits = {.b = 0x00U, .d = 0x00U, .f = 0x00U},
.vdev_ops = &vhostbridge_ops,
},
{
.emu_type = PCI_DEV_TYPE_PTDEV,
@ -33,6 +35,7 @@ struct acrn_vm_pci_dev_config vm1_pci_devs[VM1_CONFIG_PCI_DEV_NUM] = {
{
.emu_type = PCI_DEV_TYPE_HVEMUL,
.vbdf.bits = {.b = 0x00U, .d = 0x00U, .f = 0x00U},
.vdev_ops = &vhostbridge_ops,
},
{
.emu_type = PCI_DEV_TYPE_PTDEV,