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drm/i915/kvmgt: Support setting dma map for huge pages

Selaa lähdekoodia 
To support huge gtt, we need to support huge pages in kvmgt first.
This patch adds a 'size' param to the intel_gvt_mpt::dma_map_guest_page
API and implements it in kvmgt.

v2: rebase.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Changbin Du
2018-05-15 10:35:42 +08:00
committed by Zhenyu Wang
vanhempi eb3a353014
commit 79e542f5af
4 muutettua tiedostoa jossa 103 lisäystä ja 40 poistoa
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6
drivers/gpu/drm/i915/gvt/gtt.c
Näytä tiedosto

@@ -1106,7 +1106,7 @@ static int split_64KB_gtt_entry(struct intel_vgpu *vgpu,
for (i = 0; i < GTT_64K_PTE_STRIDE; i++) {
ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu,
start_gfn + i, &dma_addr);
start_gfn + i, PAGE_SIZE, &dma_addr);
if (ret)
return ret;
@@ -1152,7 +1152,7 @@ static int ppgtt_populate_shadow_entry(struct intel_vgpu *vgpu,
};
/* direct shadow */
ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu, gfn, &dma_addr);
ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu, gfn, PAGE_SIZE, &dma_addr);
if (ret)
return -ENXIO;
@@ -2080,7 +2080,7 @@ static int emulate_ggtt_mmio_write(struct intel_vgpu *vgpu, unsigned int off,
}
ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu, gfn,
&dma_addr);
PAGE_SIZE, &dma_addr);
if (ret) {
gvt_vgpu_err("fail to populate guest ggtt entry\n");
/* guest driver may read/write the entry when partial