diff options
Diffstat (limited to 'include/exec/cpu-all.h')
| -rw-r--r-- | include/exec/cpu-all.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index 64cb62dc54..090922e4a8 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -152,6 +152,15 @@ static inline void tswap64s(uint64_t *s) */ extern uintptr_t guest_base; extern bool have_guest_base; + +/* + * If non-zero, the guest virtual address space is a contiguous subset + * of the host virtual address space, i.e. '-R reserved_va' is in effect + * either from the command-line or by default. The value is the last + * byte of the guest address space e.g. UINT32_MAX. + * + * If zero, the host and guest virtual address spaces are intermingled. + */ extern unsigned long reserved_va; /* @@ -171,7 +180,7 @@ extern unsigned long reserved_va; #define GUEST_ADDR_MAX_ \ ((MIN_CONST(TARGET_VIRT_ADDR_SPACE_BITS, TARGET_ABI_BITS) <= 32) ? \ UINT32_MAX : ~0ul) -#define GUEST_ADDR_MAX (reserved_va ? reserved_va - 1 : GUEST_ADDR_MAX_) +#define GUEST_ADDR_MAX (reserved_va ? : GUEST_ADDR_MAX_) #else |