diff options
| author | Zhi Wang <zhi.a.wang@intel.com> | 2016-07-20 01:14:38 -0400 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2016-10-14 18:12:46 +0800 |
| commit | 4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8 (patch) | |
| tree | b9825065a7318e731e1b8cf2a3302472bf300906 /drivers/gpu/drm/i915/gvt/hypercall.h | |
| parent | 2707e44466881d6b0a8ed05a429dcf0940c22f60 (diff) | |
| download | lwn-4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8.tar.gz lwn-4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8.zip | |
drm/i915/gvt: vGPU PCI configuration space virtualization
This patch introduces vGPU PCI configuration space virtualization.
- Adjust the trapped GPFN(Guest Page Frame Number) window of virtual GEN
PCI BAR 0 when guest initializes PCI BAR 0 address.
- Emulate OpRegion when guest touches OpRegion.
- Pass-through a part of aperture to guest when guest initializes
aperture BAR.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/hypercall.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/hypercall.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/hypercall.h b/drivers/gpu/drm/i915/gvt/hypercall.h index 67d8b1a26e73..b5ffd78afd02 100644 --- a/drivers/gpu/drm/i915/gvt/hypercall.h +++ b/drivers/gpu/drm/i915/gvt/hypercall.h @@ -33,6 +33,15 @@ #ifndef _GVT_HYPERCALL_H_ #define _GVT_HYPERCALL_H_ +struct intel_gvt_io_emulation_ops { + int (*emulate_cfg_read)(void *, unsigned int, + void *, unsigned int); + int (*emulate_cfg_write)(void *, unsigned int, + void *, unsigned int); +}; + +extern struct intel_gvt_io_emulation_ops *gvt_io_emulation_ops; + /* * Specific GVT-g MPT modules function collections. Currently GVT-g supports * both Xen and KVM by providing dedicated hypervisor-related MPT modules. @@ -50,6 +59,11 @@ struct intel_gvt_mpt { int (*write_gpa)(unsigned long handle, unsigned long gpa, void *buf, unsigned long len); unsigned long (*gfn_to_mfn)(unsigned long handle, unsigned long gfn); + int (*map_gfn_to_mfn)(unsigned long handle, unsigned long gfn, + unsigned long mfn, unsigned int nr, bool map, + int type); + int (*set_trap_area)(unsigned long handle, u64 start, u64 end, + bool map); }; extern struct intel_gvt_mpt xengt_mpt; |