diff options
| author | Richard Henderson <rth@twiddle.net> | 2010-03-10 14:33:23 -0800 |
|---|---|---|
| committer | Paul Brook <paul@codesourcery.com> | 2010-03-12 16:28:24 +0000 |
| commit | 5270589032f450ae7c3448730855aa18ff68ccff (patch) | |
| tree | b918b07e410db7876c774d5f8c063dae4178497c /target-i386/cpu.h | |
| parent | 0aef4261ac0ec9089ade0e3a92f986cb4ba7317e (diff) | |
Move TARGET_PHYS_ADDR_SPACE_BITS to target-*/cpu.h.
Removes a set of ifdefs from exec.c.
Introduce TARGET_VIRT_ADDR_SPACE_BITS for all targets other
than Alpha. This will be used for page_find_alloc, which is
supposed to be using virtual addresses in the first place.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-i386/cpu.h')
| -rw-r--r-- | target-i386/cpu.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h index ef7d951fcc..198ea7d2fd 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -874,6 +874,17 @@ uint64_t cpu_get_tsc(CPUX86State *env); #define TARGET_PAGE_BITS 12 +#ifdef TARGET_X86_64 +#define TARGET_PHYS_ADDR_SPACE_BITS 52 +/* ??? This is really 48 bits, sign-extended, but the only thing + accessible to userland with bit 48 set is the VSYSCALL, and that + is handled via other mechanisms. */ +#define TARGET_VIRT_ADDR_SPACE_BITS 47 +#else +#define TARGET_PHYS_ADDR_SPACE_BITS 36 +#define TARGET_VIRT_ADDR_SPACE_BITS 32 +#endif + #define cpu_init cpu_x86_init #define cpu_exec cpu_x86_exec #define cpu_gen_code cpu_x86_gen_code |