tcg: Remove TCG_TARGET_HAS_GUEST_BASE define

GUEST_BASE support is now supported by all TCG backends, and is
now mandatory. Drop the now-pointless TCG_TARGET_HAS_GUEST_BASE
define (set by every backend) and the error if it is unset.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

tcg/arm/tcg-target.h

@@ -75,8 +75,6 @@ typedef enum {
 #define TCG_TARGET_HAS_deposit_i32      0
 #define TCG_TARGET_HAS_movcond_i32      0
 
-#define TCG_TARGET_HAS_GUEST_BASE
-
 enum {
     TCG_AREG0 = TCG_REG_R6,
 };

tcg/hppa/tcg-target.h

@@ -103,8 +103,6 @@ typedef enum {
 #define TCG_TARGET_HAS_ext8u_i32        0 /* and rd, rs, 0xff */
 #define TCG_TARGET_HAS_ext16u_i32       0 /* and rd, rs, 0xffff */
 
-#define TCG_TARGET_HAS_GUEST_BASE
-
 #define TCG_AREG0 TCG_REG_R17
 
 

tcg/i386/tcg-target.h

@@ -125,8 +125,6 @@ typedef enum {
      ((ofs) == 0 && (len) == 16))
 #define TCG_TARGET_deposit_i64_valid    TCG_TARGET_deposit_i32_valid
 
-#define TCG_TARGET_HAS_GUEST_BASE
-
 #if TCG_TARGET_REG_BITS == 64
 # define TCG_AREG0 TCG_REG_R14
 #else

tcg/ia64/tcg-target.h

@@ -144,9 +144,6 @@ typedef enum {
 
 #define TCG_AREG0 TCG_REG_R7
 
-/* Guest base is supported */
-#define TCG_TARGET_HAS_GUEST_BASE
-
 static inline void flush_icache_range(tcg_target_ulong start,
                                       tcg_target_ulong stop)
 {

tcg/mips/tcg-target.h

@@ -116,9 +116,6 @@ typedef enum {
 
 #define TCG_AREG0 TCG_REG_S0
 
-/* guest base is supported */
-#define TCG_TARGET_HAS_GUEST_BASE
-
 #ifdef __OpenBSD__
 #include <machine/sysarch.h>
 #else

tcg/ppc/tcg-target.h

@@ -96,8 +96,6 @@ typedef enum {
 
 #define TCG_AREG0 TCG_REG_R27
 
-#define TCG_TARGET_HAS_GUEST_BASE
-
 #define tcg_qemu_tb_exec(env, tb_ptr) \
     ((long __attribute__ ((longcall)) \
       (*)(void *, void *))code_gen_prologue)(env, tb_ptr)

tcg/ppc64/tcg-target.h

@@ -108,5 +108,4 @@ typedef enum {
 
 #define TCG_AREG0 TCG_REG_R27
 
-#define TCG_TARGET_HAS_GUEST_BASE
 #define TCG_TARGET_EXTEND_ARGS 1

tcg/s390/tcg-target.h

@@ -88,8 +88,6 @@ typedef enum TCGReg {
 #define TCG_TARGET_HAS_movcond_i64      0
 #endif
 
-#define TCG_TARGET_HAS_GUEST_BASE
-
 /* used for function call generation */
 #define TCG_REG_CALL_STACK		TCG_REG_R15
 #define TCG_TARGET_STACK_ALIGN		8

tcg/sparc/tcg-target.h

@@ -124,8 +124,6 @@ typedef enum {
 #define TCG_TARGET_HAS_movcond_i64      0
 #endif
 
-#define TCG_TARGET_HAS_GUEST_BASE
-
 #define TCG_AREG0 TCG_REG_I0
 
 static inline void flush_icache_range(tcg_target_ulong start,

tcg/tcg.c

@@ -62,10 +62,6 @@
 
 #include "elf.h"
 
-#if defined(CONFIG_USE_GUEST_BASE) && !defined(TCG_TARGET_HAS_GUEST_BASE)
-#error GUEST_BASE not supported on this host.
-#endif
-
 /* Forward declarations for functions declared in tcg-target.c and used here. */
 static void tcg_target_init(TCGContext *s);
 static void tcg_target_qemu_prologue(TCGContext *s);

tcg/tci/tcg-target.h

@@ -102,9 +102,6 @@
 #define TCG_TARGET_HAS_movcond_i64      0
 #endif /* TCG_TARGET_REG_BITS == 64 */
 
-/* Offset to user memory in user mode. */
-#define TCG_TARGET_HAS_GUEST_BASE
-
 /* Number of registers available.
    For 32 bit hosts, we need more than 8 registers (call arguments). */
 /* #define TCG_TARGET_NB_REGS 8 */