28 Apr
2025
28 Apr
'25
7 p.m.
On Mon, Apr 28, 2025 at 09:31:31PM +0700, Bagas Sanjaya wrote:
On Fri, Apr 25, 2025 at 10:58:10PM -0700, Nicolin Chen wrote:
+- IOMMUFD_OBJ_VCMDQ, representing a hardware queue as a subset of a vIOMMU's
- virtualization feature for a VM to directly execute guest-issued commands to
- invalidate HW cache entries holding the mappings or translations of a guest-
- owned stage-1 page table. Along with this queue object, iommufd provides the
- user space an mmap interface for VMM to mmap a physical MMIO region from the
- host physical address space to a guest physical address space, to exclusively
- control the allocated vCMDQ HW. Thus, when allocating a vCMDQ, the VMM must
- request a pair of VMA info (vm_pgoff/size) for a later mmap call. The length
- argument of an mmap call could be smaller than the given size for a paritial
- mmap, but the given vm_pgoff (as the addr argument of the mmap call) should
"... partial mmap, ..."
Fixed. Thanks!
Nicolin