From 4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8 Mon Sep 17 00:00:00 2001 From: Zhi Wang Date: Wed, 20 Jul 2016 01:14:38 -0400 Subject: 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 Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/hypercall.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/gpu/drm/i915/gvt/hypercall.h') 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; -- cgit v1.2.3-59-g8ed1b