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Merge tag 'gvt-fixes-2018-01-17' of https://github.com/intel/gvt-linux into drm-intel-fixes

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gvt-fixes-2018-01-17

- Fix one register cmd parser failure (Colin)
- Fix region cleanup for vGPU destroy (Henry)
- Fix mmap size check (Zhenyu)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190117074604.GI18272@zhen-hp.sh.intel.com
This commit is contained in:
Jani Nikula 2019-01-17 11:49:51 +02:00
commit 15c05196ff
4 changed files with 29 additions and 6 deletions
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1
drivers/gpu/drm/i915/gvt/handlers.c
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@ -2799,6 +2799,7 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt)
MMIO_DFH(_MMIO(0xe2a0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(_MMIO(0xe2b0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(_MMIO(0xe2c0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(_MMIO(0x21f0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
return 0;
}

2
drivers/gpu/drm/i915/gvt/hypercall.h
View File

@ -41,7 +41,7 @@ struct intel_gvt_mpt {
int (*host_init)(struct device *dev, void *gvt, const void *ops);
void (*host_exit)(struct device *dev, void *gvt);
int (*attach_vgpu)(void *vgpu, unsigned long *handle);
void (*detach_vgpu)(unsigned long handle);
void (*detach_vgpu)(void *vgpu);
int (*inject_msi)(unsigned long handle, u32 addr, u16 data);
unsigned long (*from_virt_to_mfn)(void *p);
int (*enable_page_track)(unsigned long handle, u64 gfn);

30
drivers/gpu/drm/i915/gvt/kvmgt.c
View File

@ -996,7 +996,7 @@ static int intel_vgpu_mmap(struct mdev_device *mdev, struct vm_area_struct *vma)
{
unsigned int index;
u64 virtaddr;
unsigned long req_size, pgoff = 0;
unsigned long req_size, pgoff, req_start;
pgprot_t pg_prot;
struct intel_vgpu *vgpu = mdev_get_drvdata(mdev);
@ -1014,7 +1014,17 @@ static int intel_vgpu_mmap(struct mdev_device *mdev, struct vm_area_struct *vma)
pg_prot = vma->vm_page_prot;
virtaddr = vma->vm_start;
req_size = vma->vm_end - vma->vm_start;
pgoff = vgpu_aperture_pa_base(vgpu) >> PAGE_SHIFT;
pgoff = vma->vm_pgoff &
((1U << (VFIO_PCI_OFFSET_SHIFT - PAGE_SHIFT)) - 1);
req_start = pgoff << PAGE_SHIFT;
if (!intel_vgpu_in_aperture(vgpu, req_start))
return -EINVAL;
if (req_start + req_size >
vgpu_aperture_offset(vgpu) + vgpu_aperture_sz(vgpu))
return -EINVAL;
pgoff = (gvt_aperture_pa_base(vgpu->gvt) >> PAGE_SHIFT) + pgoff;
return remap_pfn_range(vma, virtaddr, pgoff, req_size, pg_prot);
}
@ -1662,9 +1672,21 @@ static int kvmgt_attach_vgpu(void *vgpu, unsigned long *handle)
return 0;
}
static void kvmgt_detach_vgpu(unsigned long handle)
static void kvmgt_detach_vgpu(void *p_vgpu)
{
/* nothing to do here */
int i;
struct intel_vgpu *vgpu = (struct intel_vgpu *)p_vgpu;
if (!vgpu->vdev.region)
return;
for (i = 0; i < vgpu->vdev.num_regions; i++)
if (vgpu->vdev.region[i].ops->release)
vgpu->vdev.region[i].ops->release(vgpu,
&vgpu->vdev.region[i]);
vgpu->vdev.num_regions = 0;
kfree(vgpu->vdev.region);
vgpu->vdev.region = NULL;
}
static int kvmgt_inject_msi(unsigned long handle, u32 addr, u16 data)

2
drivers/gpu/drm/i915/gvt/mpt.h
View File

@ -101,7 +101,7 @@ static inline void intel_gvt_hypervisor_detach_vgpu(struct intel_vgpu *vgpu)
if (!intel_gvt_host.mpt->detach_vgpu)
return;
intel_gvt_host.mpt->detach_vgpu(vgpu->handle);
intel_gvt_host.mpt->detach_vgpu(vgpu);
}
#define MSI_CAP_CONTROL(offset) (offset + 2)