506b4248b0
Until now, the "owner" of the memory was the guest, and by calling nvmm_gpa_map(), the virtualizer was creating a view towards the guest memory. Qemu expects the contrary: it wants the owner to be the virtualizer, and nvmm_gpa_map should just create a view from the guest towards the virtualizer's address space. Under this scheme, it is legal to have two GPAs that point to the same HVA. Introduce nvmm_hva_map() and nvmm_hva_unmap(), that map/unamp the HVA into a dedicated UOBJ. Change nvmm_gpa_map() and nvmm_gpa_unmap() to just perform an enter into the desired UOBJ. With this change in place, all the mapping-related problems in Qemu+NVMM are fixed. |
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| .. | ||
| x86 | ||
| files.nvmm | ||
| Makefile | ||
| nvmm_internal.h | ||
| nvmm_ioctl.h | ||
| nvmm.c | ||
| nvmm.h | ||