i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Account for the physical map area in the kernel VM space. Fixes #9547.

Browse Source 
The physical memory map area was not included in the kernel virtual
address space range (it was below KERNEL_BASE). This caused problems
if an I/O operation took place on physical memory mapped there (the
bad address error seen in #9547 was occurring in lock_memory_etc()).
Changed KERNEL_BASE and KERNEL_SIZE to cover the area and add a null
area that covers all of it. Also changed X86VMTranslationMap64Bit to
handle large pages in Query(), as the physical map area uses large
pages.
This commit is contained in:
Alex Smith
2013-03-22 18:30:01 +00:00
parent 8627383bf7
commit 5e0c3db286
4 changed files with 89 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files
headers/private/kernel/arch/x86/arch_kernel.h
+2 -2
View File
@@ -30,8 +30,8 @@
// address where the kernel is loaded to: the kernel is loaded in the top 2GB
// of the virtual address space as required by GCC's kernel code model. The
// whole kernel address space is the top 512GB of the address space.
#define KERNEL_BASE 0xffffff8000000000
#define KERNEL_SIZE 0x8000000000
#define KERNEL_BASE 0xffffff0000000000
#define KERNEL_SIZE 0x10000000000
#define KERNEL_TOP (KERNEL_BASE + (KERNEL_SIZE - 1))
#define KERNEL_LOAD_BASE 0xffffffff80000000