diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/exec/cpu-all.h | 6 | ||||
| -rw-r--r-- | include/exec/cpu_ldst.h | 16 |
2 files changed, 12 insertions, 10 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index 0b141683f0..f4fa94e966 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -159,8 +159,12 @@ extern unsigned long guest_base; extern int have_guest_base; extern unsigned long reserved_va; -#define GUEST_ADDR_MAX (reserved_va ? reserved_va : \ +#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS +#define GUEST_ADDR_MAX (~0ul) +#else +#define GUEST_ADDR_MAX (reserved_va ? reserved_va - 1 : \ (1ul << TARGET_VIRT_ADDR_SPACE_BITS) - 1) +#endif #else #include "exec/hwaddr.h" diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h index 191f2e962a..5de8c8a5af 100644 --- a/include/exec/cpu_ldst.h +++ b/include/exec/cpu_ldst.h @@ -51,15 +51,13 @@ /* All direct uses of g2h and h2g need to go away for usermode softmmu. */ #define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + guest_base)) -#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS -#define h2g_valid(x) 1 -#else -#define h2g_valid(x) ({ \ - unsigned long __guest = (unsigned long)(x) - guest_base; \ - (__guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) && \ - (!reserved_va || (__guest < reserved_va)); \ -}) -#endif +#define guest_addr_valid(x) ((x) <= GUEST_ADDR_MAX) +#define h2g_valid(x) guest_addr_valid((unsigned long)(x) - guest_base) + +static inline int guest_range_valid(unsigned long start, unsigned long len) +{ + return len - 1 <= GUEST_ADDR_MAX && start <= GUEST_ADDR_MAX - len + 1; +} #define h2g_nocheck(x) ({ \ unsigned long __ret = (unsigned long)(x) - guest_base; \ |