From 71e4f3812982dba2efb471283d310224e8db363e Mon Sep 17 00:00:00 2001 From: "Kartik K. Agaram" Date: Wed, 3 Mar 2021 22:09:50 -0800 Subject: 7842 - new directory organization Baremetal is now the default build target and therefore has its sources at the top-level. Baremetal programs build using the phase-2 Mu toolchain that requires a Linux kernel. This phase-2 codebase which used to be at the top-level is now under the linux/ directory. Finally, the phase-2 toolchain, while self-hosting, has a way to bootstrap from a C implementation, which is now stored in linux/bootstrap. The bootstrap C implementation uses some literate programming tools that are now in linux/bootstrap/tools. So the whole thing has gotten inverted. Each directory should build one artifact and include the main sources (along with standard library). Tools used for building it are relegated to sub-directories, even though those tools are often useful in their own right, and have had lots of interesting programs written using them. A couple of things have gotten dropped in this process: - I had old ways to run on just a Linux kernel, or with a Soso kernel. No more. - I had some old tooling for running a single test at the cursor. I haven't used that lately. Maybe I'll bring it back one day. The reorg isn't done yet. Still to do: - redo documentation everywhere. All the README files, all other markdown, particularly vocabulary.md. - clean up how-to-run comments at the start of programs everywhere - rethink what to do with the html/ directory. Do we even want to keep supporting it? In spite of these shortcomings, all the scripts at the top-level, linux/ and linux/bootstrap are working. The names of the scripts also feel reasonable. This is a good milestone to take stock at. --- tools/iso/kernel.soso/vmm.h | 48 --------------------------------------------- 1 file changed, 48 deletions(-) delete mode 100644 tools/iso/kernel.soso/vmm.h (limited to 'tools/iso/kernel.soso/vmm.h') diff --git a/tools/iso/kernel.soso/vmm.h b/tools/iso/kernel.soso/vmm.h deleted file mode 100644 index f7955afb..00000000 --- a/tools/iso/kernel.soso/vmm.h +++ /dev/null @@ -1,48 +0,0 @@ -#ifndef VMM_H -#define VMM_H - -#include "common.h" - -typedef struct Process Process; -typedef struct List List; - -extern uint32 *gKernelPageDirectory; - -extern uint8 gKernelPageHeapBitmap[]; - - -#define SET_PAGEFRAME_USED(bitmap, pageIndex) bitmap[((uint32) pageIndex)/8] |= (1 << (((uint32) pageIndex)%8)) -#define SET_PAGEFRAME_UNUSED(bitmap, p_addr) bitmap[((uint32) p_addr/PAGESIZE_4M)/8] &= ~(1 << (((uint32) p_addr/PAGESIZE_4M)%8)) -#define IS_PAGEFRAME_USED(bitmap, pageIndex) (bitmap[((uint32) pageIndex)/8] & (1 << (((uint32) pageIndex)%8))) - -#define SET_PAGEHEAP_USED(pageIndex) gKernelPageHeapBitmap[((uint32) pageIndex)/8] |= (1 << (((uint32) pageIndex)%8)) -#define SET_PAGEHEAP_UNUSED(p_addr) gKernelPageHeapBitmap[((uint32) p_addr/PAGESIZE_4K)/8] &= ~(1 << (((uint32) p_addr/PAGESIZE_4K)%8)) -#define IS_PAGEHEAP_USED(pageIndex) (gKernelPageHeapBitmap[((uint32) pageIndex)/8] & (1 << (((uint32) pageIndex)%8))) - -char* getPageFrame4M(); -void releasePageFrame4M(uint32 p_addr); - -uint32 *getPdFromReservedArea4K(); -void releasePdFromReservedArea4K(uint32 *); - -void initializeMemory(uint32 high_mem); - -uint32 *createPd(); -void destroyPd(uint32 *); -uint32 *copyPd(uint32* pd); - -BOOL addPageToPd(uint32* pd, char *v_addr, char *p_addr, int flags); -BOOL removePageFromPd(uint32* pd, char *v_addr, BOOL releasePageFrame); - -void enablePaging(); -void disablePaging(); - -uint32 getTotalPageCount(); -uint32 getUsedPageCount(); -uint32 getFreePageCount(); - -void initializeProcessMmap(Process* process); -void* mapMemory(Process* process, uint32 nBytes, uint32 pAddress, List* pAddressList); -BOOL unmapMemory(Process* process, uint32 nBytes, uint32 vAddress); - -#endif // VMM_H -- cgit 1.4.1-2-gfad0