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diff --git a/share/man/man9/pmap.9 b/share/man/man9/pmap.9 deleted file mode 100644 index e50a8ab..0000000 --- a/share/man/man9/pmap.9 +++ /dev/null @@ -1,75 +0,0 @@ -.\" Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions are met: -.\" -.\" 1. Redistributions of source code must retain the above copyright notice, -.\" this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. Neither the name of Hyra nor the names of its -.\" contributors may be used to endorse or promote products derived from -.\" this software without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -.\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -.\" POSSIBILITY OF SUCH DAMAGE. -.Dd Mar 13 2024 -.Dt PMAP 9 -.Os Hyra -.Sh NAME -.Nm pmap - hyra machine dependent virtual memory layer -.Sh SYNOPSIS -.In vm/pmap.h - -.Bd -literal -int pmap_map(struct vm_ctx *, vaddr_t, paddr_t, vm_prot_t); -int pmap_unmap(struct vm_ctx *, vaddr_t); -.Ed - -.Sh DESCRIPTION -The machine dependent virtual memory layer contains a standard set of -functions that shall be implemented per architecture and left alone -outside of vm(9). vm(9) uses pmap routines internally which allows for -abstracting away machine dependent details. - -The -.Ft pmap_map() -function is used to map a physical address (paddr_t) to -a virtual address (vaddr_t). The argument of type -vm_prot_t is used to give a mapping certain access -rules. These rules are described below: - -The -.Ft PROT_WRITABLE -bit tells pmap_map() to allow writes to the page. -Writes to pages without this bit will result in an exception, -on AMD64 a #PF will occur. - -The -.Ft PROT_EXEC -bit tells pmap_map() to allow this page to be -executable. On platforms like AMD64, execution of pages -without this bit will result in an exception from the -instruction fetch, for AMD64, a #PF will occur. - -The -.Ft pmap_unmap() -function is used to unmap a virtual address which -leaves the address invalid. - -.Sh AUTHORS -.An Ian Moffett Aq Mt ian@osmora.org - -.Sh SEE ALSO -.Xr vm 9 |