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dm: mmio_dev: add hypercall to support mmio device pass through 

Add two hypercalls to support MMIO device pass through.

Tracked-On: #5053
Signed-off-by: Li Fei1 <fei1.li@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Li Fei1 2020-07-16 13:56:21 +08:00 committed by wenlingz
parent baf77a79ad
commit 158f3d17a2
3 changed files with 34 additions and 0 deletions
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12
devicemodel/core/vmmapi.c
View File

@ -572,6 +572,18 @@ vm_deassign_pcidev(struct vmctx *ctx, struct acrn_assign_pcidev *pcidev)
return ioctl(ctx->fd, IC_DEASSIGN_PCIDEV, pcidev);
}
int
vm_assign_mmiodev(struct vmctx *ctx, struct acrn_mmiodev *mmiodev)
{
return ioctl(ctx->fd, IC_ASSIGN_MMIODEV, mmiodev);
}
int
vm_deassign_mmiodev(struct vmctx *ctx, struct acrn_mmiodev *mmiodev)
{
return ioctl(ctx->fd, IC_DEASSIGN_MMIODEV, mmiodev);
}
int
vm_map_ptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
vm_paddr_t gpa, size_t len, vm_paddr_t hpa)

20
devicemodel/include/public/vhm_ioctl_defs.h
View File

@ -107,6 +107,8 @@
#define IC_RESET_PTDEV_INTR_INFO _IC_ID(IC_ID, IC_ID_PCI_BASE + 0x04)
#define IC_ASSIGN_PCIDEV _IC_ID(IC_ID, IC_ID_PCI_BASE + 0x05)
#define IC_DEASSIGN_PCIDEV _IC_ID(IC_ID, IC_ID_PCI_BASE + 0x06)
#define IC_ASSIGN_MMIODEV _IC_ID(IC_ID, IC_ID_PCI_BASE + 0x07)
#define IC_DEASSIGN_MMIODEV _IC_ID(IC_ID, IC_ID_PCI_BASE + 0x08)
/* Power management */
#define IC_ID_PM_BASE 0x60UL
@ -182,6 +184,24 @@ struct acrn_assign_pcidev {
} __attribute__((aligned(8)));
/**
* @brief Info to assign or deassign a MMIO device for a VM
*/
struct acrn_mmiodev {
/** the gpa of the MMIO region for the MMIO device */
uint64_t base_gpa;
/** the hpa of the MMIO region for the MMIO device */
uint64_t base_hpa;
/** the size of the MMIO region for the MMIO device */
uint64_t size;
/** reserved for extension */
uint64_t reserved[13];
} __attribute__((aligned(8)));
/**
* @brief pass thru device irq data structure
*/

2
devicemodel/include/vmmapi.h
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@ -126,6 +126,8 @@ int vm_lapic_msi(struct vmctx *ctx, uint64_t addr, uint64_t msg);
int vm_set_gsi_irq(struct vmctx *ctx, int gsi, uint32_t operation);
int vm_assign_pcidev(struct vmctx *ctx, struct acrn_assign_pcidev *pcidev);
int vm_deassign_pcidev(struct vmctx *ctx, struct acrn_assign_pcidev *pcidev);
int vm_assign_mmiodev(struct vmctx *ctx, struct acrn_mmiodev *mmiodev);
int vm_deassign_mmiodev(struct vmctx *ctx, struct acrn_mmiodev *mmiodev);
int vm_map_ptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
int vm_unmap_ptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,