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arm64: Direct access to Mckernel memory from Linux.

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Change-Id: I1a096aa5232c56382ae19d8c4e4f41d4e3e9f660
This commit is contained in:
Shiratori, Takehiro
2019-02-26 17:17:46 +09:00
committed by Dominique Martinet
parent 20d5900c35
commit aa3c5e91db
9 changed files with 32 additions and 28 deletions
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7
executer/user/arch/arm64/arch-eclair.c
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@@ -55,13 +55,14 @@ uintptr_t virt_to_phys(uintptr_t va)
{
extern uintptr_t kernel_base;
if (va >= MAP_ST) {
return (va - MAP_ST);
}
if (va >= MAP_KERNEL) {
return (va - MAP_KERNEL + kernel_base);
}
if (va >= MAP_ST) {
return (va - MAP_ST);
}
return NOPHYS;
} /* virt_to_phys() */
#endif /* POSTK_DEBUG_ARCH_DEP_34 */

16
executer/user/arch/arm64/include/arch-eclair.h
View File

@@ -6,15 +6,15 @@
#
# if (CONFIG_ARM64_VA_BITS == 42)
# /* VA_BITS=42, 64K_PAGE address */
# define MAP_KERNEL 0xffffffffe0000000
# define MAP_KERNEL 0xfffffc0007800000
# define MAP_ST 0xfffffe0000000000
# define MAP_KERNEL_TEXT "0xffffffffe0000000"
# define MAP_KERNEL_TEXT "0xfffffc0007800000"
#
# elif (CONFIG_ARM64_VA_BITS == 48)
# /* VA_BITS=48, 64K_PAGE address */
# define MAP_KERNEL 0xffffffffe0000000
# define MAP_KERNEL 0xffff000007800000
# define MAP_ST 0xffff800000000000
# define MAP_KERNEL_TEXT "0xffffffffe0000000"
# define MAP_KERNEL_TEXT "0xffff000007800000"
#
# else
#
@@ -26,15 +26,15 @@
#
# if (CONFIG_ARM64_VA_BITS == 39)
# /* VA_BITS=39, 4K_PAGE address */
# define MAP_KERNEL 0xffffffffff800000
# define MAP_KERNEL 0xffffff8007800000
# define MAP_ST 0xffffffc000000000
# define MAP_KERNEL_TEXT "0xffffffffff800000"
# define MAP_KERNEL_TEXT "0xffffff8007800000"
#
# elif (CONFIG_ARM64_VA_BITS == 48)
# /* VA_BITS=48, 4K_PAGE address */
# define MAP_KERNEL 0xffffffffff800000
# define MAP_KERNEL 0xffff000007800000
# define MAP_ST 0xffff800000000000
# define MAP_KERNEL_TEXT "0xffffffffff800000"
# define MAP_KERNEL_TEXT "0xffff000007800000"
#
# else
#