Commit: b76f21a70748b735d6ac84fec4bb9bdaafa339b1 - qemu (git)

Commit MetaInfo

• Revision: b76f21a70748b735d6ac84fec4bb9bdaafa339b1 (tree)
• Time: 2015-08-25 03:14:30
• Author: Laurent Vivier <laurent@vivi...>
• Commiter: Richard Henderson

Log Message

linux-user: remove useless macros GUEST_BASE and RESERVED_VA

As we have removed CONFIG_USE_GUEST_BASE, we always use a guest base
and the macros GUEST_BASE and RESERVED_VA become useless: replace
them by their values.

Reviewed-by: Alexander Graf <[e-mail]>
Signed-off-by: Laurent Vivier <[e-mail]>
Message-Id: <[e-mail]>
Signed-off-by: Richard Henderson <[e-mail]>

Change Summary

• modified: include/exec/cpu-all.h
• modified: include/exec/cpu_ldst.h
• modified: linux-user/mmap.c
• modified: tcg/aarch64/tcg-target.c
• modified: tcg/arm/tcg-target.c
• modified: tcg/i386/tcg-target.c
• modified: tcg/ia64/tcg-target.c
• modified: tcg/mips/tcg-target.c
• modified: tcg/ppc/tcg-target.c
• modified: tcg/s390/tcg-target.c
• modified: tcg/sparc/tcg-target.c

Incremental Difference

--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -163,10 +163,8 @@ static inline void tswap64s(uint64_t *s)
 extern unsigned long guest_base;
 extern int have_guest_base;
 extern unsigned long reserved_va;
-#define GUEST_BASE guest_base
-#define RESERVED_VA reserved_va
 
-#define GUEST_ADDR_MAX (RESERVED_VA ? RESERVED_VA : \
+#define GUEST_ADDR_MAX (reserved_va ? reserved_va : \
                                     (1ul << TARGET_VIRT_ADDR_SPACE_BITS) - 1)
 #endif
 

--- a/include/exec/cpu_ldst.h
+++ b/include/exec/cpu_ldst.h
@@ -49,20 +49,20 @@
 
 #if defined(CONFIG_USER_ONLY)
 /* 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))
+#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; \
+    unsigned long __guest = (unsigned long)(x) - guest_base; \
     (__guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) && \
-    (!RESERVED_VA || (__guest < RESERVED_VA)); \
+    (!reserved_va || (__guest < reserved_va)); \
 })
 #endif
 
 #define h2g_nocheck(x) ({ \
-    unsigned long __ret = (unsigned long)(x) - GUEST_BASE; \
+    unsigned long __ret = (unsigned long)(x) - guest_base; \
     (abi_ulong)__ret; \
 })
 

--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -215,14 +215,14 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
     int prot;
     int looped = 0;
 
-    if (size > RESERVED_VA) {
+    if (size > reserved_va) {
         return (abi_ulong)-1;
     }
 
     size = HOST_PAGE_ALIGN(size);
     end_addr = start + size;
-    if (end_addr > RESERVED_VA) {
-        end_addr = RESERVED_VA;
+    if (end_addr > reserved_va) {
+        end_addr = reserved_va;
     }
     addr = end_addr - qemu_host_page_size;
 
@@ -231,7 +231,7 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
             if (looped) {
                 return (abi_ulong)-1;
             }
-            end_addr = RESERVED_VA;
+            end_addr = reserved_va;
             addr = end_addr - qemu_host_page_size;
             looped = 1;
             continue;
@@ -274,7 +274,7 @@ abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size)
 
     size = HOST_PAGE_ALIGN(size);
 
-    if (RESERVED_VA) {
+    if (reserved_va) {
         return mmap_find_vma_reserved(start, size);
     }
 
@@ -667,7 +667,7 @@ int target_munmap(abi_ulong start, abi_ulong len)
     ret = 0;
     /* unmap what we can */
     if (real_start < real_end) {
-        if (RESERVED_VA) {
+        if (reserved_va) {
             mmap_reserve(real_start, real_end - real_start);
         } else {
             ret = munmap(g2h(real_start), real_end - real_start);
@@ -697,7 +697,7 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
                                      flags,
                                      g2h(new_addr));
 
-        if (RESERVED_VA && host_addr != MAP_FAILED) {
+        if (reserved_va && host_addr != MAP_FAILED) {
             /* If new and old addresses overlap then the above mremap will
                already have failed with EINVAL.  */
             mmap_reserve(old_addr, old_size);
@@ -715,13 +715,13 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
                                          old_size, new_size,
                                          flags | MREMAP_FIXED,
                                          g2h(mmap_start));
-            if ( RESERVED_VA ) {
+            if (reserved_va) {
                 mmap_reserve(old_addr, old_size);
             }
         }
     } else {
         int prot = 0;
-        if (RESERVED_VA && old_size < new_size) {
+        if (reserved_va && old_size < new_size) {
             abi_ulong addr;
             for (addr = old_addr + old_size;
                  addr < old_addr + new_size;
@@ -731,7 +731,7 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
         }
         if (prot == 0) {
             host_addr = mremap(g2h(old_addr), old_size, new_size, flags);
-            if (host_addr != MAP_FAILED && RESERVED_VA && old_size > new_size) {
+            if (host_addr != MAP_FAILED && reserved_va && old_size > new_size) {
                 mmap_reserve(old_addr + old_size, new_size - old_size);
             }
         } else {

--- a/tcg/aarch64/tcg-target.c
+++ b/tcg/aarch64/tcg-target.c
@@ -30,7 +30,7 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
 static const int tcg_target_reg_alloc_order[] = {
     TCG_REG_X20, TCG_REG_X21, TCG_REG_X22, TCG_REG_X23,
     TCG_REG_X24, TCG_REG_X25, TCG_REG_X26, TCG_REG_X27,
-    TCG_REG_X28, /* we will reserve this for GUEST_BASE if configured */
+    TCG_REG_X28, /* we will reserve this for guest_base if configured */
 
     TCG_REG_X8, TCG_REG_X9, TCG_REG_X10, TCG_REG_X11,
     TCG_REG_X12, TCG_REG_X13, TCG_REG_X14, TCG_REG_X15,
@@ -1225,7 +1225,7 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
                         s->code_ptr, label_ptr);
 #else /* !CONFIG_SOFTMMU */
     tcg_out_qemu_ld_direct(s, memop, ext, data_reg,
-                           GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
+                           guest_base ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
                            otype, addr_reg);
 #endif /* CONFIG_SOFTMMU */
 }
@@ -1246,7 +1246,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
                         data_reg, addr_reg, s->code_ptr, label_ptr);
 #else /* !CONFIG_SOFTMMU */
     tcg_out_qemu_st_direct(s, memop, data_reg,
-                           GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
+                           guest_base ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
                            otype, addr_reg);
 #endif /* CONFIG_SOFTMMU */
 }
@@ -1806,8 +1806,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
                   CPU_TEMP_BUF_NLONGS * sizeof(long));
 
 #if !defined(CONFIG_SOFTMMU)
-    if (GUEST_BASE) {
-        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_GUEST_BASE, GUEST_BASE);
+    if (guest_base) {
+        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_GUEST_BASE, guest_base);
         tcg_regset_set_reg(s->reserved_regs, TCG_REG_GUEST_BASE);
     }
 #endif

--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -1493,8 +1493,8 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
     add_qemu_ldst_label(s, true, oi, datalo, datahi, addrlo, addrhi,
                         s->code_ptr, label_ptr);
 #else /* !CONFIG_SOFTMMU */
-    if (GUEST_BASE) {
-        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, GUEST_BASE);
+    if (guest_base) {
+        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, guest_base);
         tcg_out_qemu_ld_index(s, opc, datalo, datahi, addrlo, TCG_REG_TMP);
     } else {
         tcg_out_qemu_ld_direct(s, opc, datalo, datahi, addrlo);
@@ -1623,8 +1623,8 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
     add_qemu_ldst_label(s, false, oi, datalo, datahi, addrlo, addrhi,
                         s->code_ptr, label_ptr);
 #else /* !CONFIG_SOFTMMU */
-    if (GUEST_BASE) {
-        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, GUEST_BASE);
+    if (guest_base) {
+        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, guest_base);
         tcg_out_qemu_st_index(s, COND_AL, opc, datalo,
                               datahi, addrlo, TCG_REG_TMP);
     } else {

--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -1432,7 +1432,7 @@ int arch_prctl(int code, unsigned long addr);
 static int guest_base_flags;
 static inline void setup_guest_base_seg(void)
 {
-    if (arch_prctl(ARCH_SET_GS, GUEST_BASE) == 0) {
+    if (arch_prctl(ARCH_SET_GS, guest_base) == 0) {
         guest_base_flags = P_GS;
     }
 }
@@ -1577,7 +1577,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
                         s->code_ptr, label_ptr);
 #else
     {
-        int32_t offset = GUEST_BASE;
+        int32_t offset = guest_base;
         TCGReg base = addrlo;
         int index = -1;
         int seg = 0;
@@ -1586,7 +1586,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
            We can do this with the ADDR32 prefix if we're not using
            a guest base, or when using segmentation.  Otherwise we
            need to zero-extend manually.  */
-        if (GUEST_BASE == 0 || guest_base_flags) {
+        if (guest_base == 0 || guest_base_flags) {
             seg = guest_base_flags;
             offset = 0;
             if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
@@ -1597,8 +1597,8 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
                 tcg_out_ext32u(s, TCG_REG_L0, base);
                 base = TCG_REG_L0;
             }
-            if (offset != GUEST_BASE) {
-                tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, GUEST_BASE);
+            if (offset != guest_base) {
+                tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, guest_base);
                 index = TCG_REG_L1;
                 offset = 0;
             }
@@ -1717,12 +1717,12 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
                         s->code_ptr, label_ptr);
 #else
     {
-        int32_t offset = GUEST_BASE;
+        int32_t offset = guest_base;
         TCGReg base = addrlo;
         int seg = 0;
 
         /* See comment in tcg_out_qemu_ld re zero-extension of addrlo.  */
-        if (GUEST_BASE == 0 || guest_base_flags) {
+        if (guest_base == 0 || guest_base_flags) {
             seg = guest_base_flags;
             offset = 0;
             if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
@@ -1731,12 +1731,12 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
         } else if (TCG_TARGET_REG_BITS == 64) {
             /* ??? Note that we can't use the same SIB addressing scheme
                as for loads, since we require L0 free for bswap.  */
-            if (offset != GUEST_BASE) {
+            if (offset != guest_base) {
                 if (TARGET_LONG_BITS == 32) {
                     tcg_out_ext32u(s, TCG_REG_L0, base);
                     base = TCG_REG_L0;
                 }
-                tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, GUEST_BASE);
+                tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, guest_base);
                 tgen_arithr(s, ARITH_ADD + P_REXW, TCG_REG_L1, base);
                 base = TCG_REG_L1;
                 offset = 0;
@@ -2315,8 +2315,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
     tcg_out_opc(s, OPC_RET, 0, 0, 0);
 
 #if !defined(CONFIG_SOFTMMU)
-    /* Try to set up a segment register to point to GUEST_BASE.  */
-    if (GUEST_BASE) {
+    /* Try to set up a segment register to point to guest_base.  */
+    if (guest_base) {
         setup_guest_base_seg();
     }
 #endif

--- a/tcg/ia64/tcg-target.c
+++ b/tcg/ia64/tcg-target.c
@@ -43,9 +43,6 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
 #ifndef CONFIG_SOFTMMU
 #define TCG_GUEST_BASE_REG TCG_REG_R55
 #endif
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
 
 /* Branch registers */
 enum {
@@ -1763,7 +1760,7 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args)
     bswap = opc & MO_BSWAP;
 
 #if TARGET_LONG_BITS == 32
-    if (GUEST_BASE != 0) {
+    if (guest_base != 0) {
         tcg_out_bundle(s, mII,
                        INSN_NOP_M,
                        tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29,
@@ -1827,7 +1824,7 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args)
         }
     }
 #else
-    if (GUEST_BASE != 0) {
+    if (guest_base != 0) {
         tcg_out_bundle(s, MmI,
                        tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2,
                                    TCG_GUEST_BASE_REG, addr_reg),
@@ -1887,7 +1884,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
     bswap = opc & MO_BSWAP;
 
 #if TARGET_LONG_BITS == 32
-    if (GUEST_BASE != 0) {
+    if (guest_base != 0) {
         tcg_out_bundle(s, mII,
                        INSN_NOP_M,
                        tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29,
@@ -1933,7 +1930,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
                    INSN_NOP_M,
                    INSN_NOP_I);
 #else
-    if (GUEST_BASE != 0) {
+    if (guest_base != 0) {
         add_guest_base = tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2,
                                      TCG_GUEST_BASE_REG, addr_reg);
         addr_reg = TCG_REG_R2;
@@ -1942,7 +1939,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
     }
 
     if (!bswap) {
-        tcg_out_bundle(s, (GUEST_BASE ? MmI : mmI),
+        tcg_out_bundle(s, (guest_base ? MmI : mmI),
                        add_guest_base,
                        tcg_opc_m4 (TCG_REG_P0, opc_st_m4[s_bits],
                                    data_reg, addr_reg),
@@ -2351,14 +2348,14 @@ static void tcg_target_qemu_prologue(TCGContext *s)
                    tcg_opc_i21(TCG_REG_P0, OPC_MOV_I21,
                                TCG_REG_B6, TCG_REG_R33, 0));
 
-    /* ??? If GUEST_BASE < 0x200000, we could load the register via
+    /* ??? If guest_base < 0x200000, we could load the register via
        an ADDL in the M slot of the next bundle.  */
-    if (GUEST_BASE != 0) {
+    if (guest_base != 0) {
         tcg_out_bundle(s, mlx,
                        INSN_NOP_M,
-                       tcg_opc_l2 (GUEST_BASE),
+                       tcg_opc_l2(guest_base),
                        tcg_opc_x2 (TCG_REG_P0, OPC_MOVL_X2,
-                                   TCG_GUEST_BASE_REG, GUEST_BASE));
+                                   TCG_GUEST_BASE_REG, guest_base));
         tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
     }
 

--- a/tcg/mips/tcg-target.c
+++ b/tcg/mips/tcg-target.c
@@ -1180,12 +1180,12 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
     add_qemu_ldst_label(s, 1, oi, data_regl, data_regh, addr_regl, addr_regh,
                         s->code_ptr, label_ptr);
 #else
-    if (GUEST_BASE == 0 && data_regl != addr_regl) {
+    if (guest_base == 0 && data_regl != addr_regl) {
         base = addr_regl;
-    } else if (GUEST_BASE == (int16_t)GUEST_BASE) {
-        tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, GUEST_BASE);
+    } else if (guest_base == (int16_t)guest_base) {
+        tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, guest_base);
     } else {
-        tcg_out_movi(s, TCG_TYPE_PTR, base, GUEST_BASE);
+        tcg_out_movi(s, TCG_TYPE_PTR, base, guest_base);
         tcg_out_opc_reg(s, OPC_ADDU, base, base, addr_regl);
     }
     tcg_out_qemu_ld_direct(s, data_regl, data_regh, base, opc);
@@ -1314,14 +1314,14 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
     add_qemu_ldst_label(s, 0, oi, data_regl, data_regh, addr_regl, addr_regh,
                         s->code_ptr, label_ptr);
 #else
-    if (GUEST_BASE == 0) {
+    if (guest_base == 0) {
         base = addr_regl;
     } else {
         base = TCG_REG_A0;
-        if (GUEST_BASE == (int16_t)GUEST_BASE) {
-            tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, GUEST_BASE);
+        if (guest_base == (int16_t)guest_base) {
+            tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, guest_base);
         } else {
-            tcg_out_movi(s, TCG_TYPE_PTR, base, GUEST_BASE);
+            tcg_out_movi(s, TCG_TYPE_PTR, base, guest_base);
             tcg_out_opc_reg(s, OPC_ADDU, base, base, addr_regl);
         }
     }

--- a/tcg/ppc/tcg-target.c
+++ b/tcg/ppc/tcg-target.c
@@ -80,10 +80,6 @@
 
 static tcg_insn_unit *tb_ret_addr;
 
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
-
 #include "elf.h"
 static bool have_isa_2_06;
 #define HAVE_ISA_2_06  have_isa_2_06
@@ -1619,7 +1615,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
 
     rbase = TCG_REG_R3;
 #else  /* !CONFIG_SOFTMMU */
-    rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
+    rbase = guest_base ? TCG_GUEST_BASE_REG : 0;
     if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
         tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
         addrlo = TCG_REG_TMP1;
@@ -1694,7 +1690,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
 
     rbase = TCG_REG_R3;
 #else  /* !CONFIG_SOFTMMU */
-    rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
+    rbase = guest_base ? TCG_GUEST_BASE_REG : 0;
     if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
         tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
         addrlo = TCG_REG_TMP1;
@@ -1799,8 +1795,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
     tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
 
 #ifndef CONFIG_SOFTMMU
-    if (GUEST_BASE) {
-        tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+    if (guest_base) {
+        tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
         tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
     }
 #endif

--- a/tcg/s390/tcg-target.c
+++ b/tcg/s390/tcg-target.c
@@ -57,11 +57,6 @@
 #define TCG_GUEST_BASE_REG TCG_REG_R0
 #endif
 
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
-
-
 /* All of the following instructions are prefixed with their instruction
    format, and are defined as 8- or 16-bit quantities, even when the two
    halves of the 16-bit quantity may appear 32 bits apart in the insn.
@@ -1638,9 +1633,9 @@ static void tcg_prepare_user_ldst(TCGContext *s, TCGReg *addr_reg,
         tgen_ext32u(s, TCG_TMP0, *addr_reg);
         *addr_reg = TCG_TMP0;
     }
-    if (GUEST_BASE < 0x80000) {
+    if (guest_base < 0x80000) {
         *index_reg = TCG_REG_NONE;
-        *disp = GUEST_BASE;
+        *disp = guest_base;
     } else {
         *index_reg = TCG_GUEST_BASE_REG;
         *disp = 0;
@@ -2349,8 +2344,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
                   TCG_STATIC_CALL_ARGS_SIZE + TCG_TARGET_CALL_STACK_OFFSET,
                   CPU_TEMP_BUF_NLONGS * sizeof(long));
 
-    if (GUEST_BASE >= 0x80000) {
-        tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+    if (guest_base >= 0x80000) {
+        tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
         tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
     }
 

--- a/tcg/sparc/tcg-target.c
+++ b/tcg/sparc/tcg-target.c
@@ -954,8 +954,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
               INSN_IMM13(-frame_size));
 
 #ifndef CONFIG_SOFTMMU
-    if (GUEST_BASE != 0) {
-        tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+    if (guest_base != 0) {
+        tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
         tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
     }
 #endif
@@ -1144,7 +1144,7 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data, TCGReg addr,
         addr = TCG_REG_T1;
     }
     tcg_out_ldst_rr(s, data, addr,
-                    (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
+                    (guest_base ? TCG_GUEST_BASE_REG : TCG_REG_G0),
                     qemu_ld_opc[memop & (MO_BSWAP | MO_SSIZE)]);
 #endif /* CONFIG_SOFTMMU */
 }
@@ -1199,7 +1199,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data, TCGReg addr,
         addr = TCG_REG_T1;
     }
     tcg_out_ldst_rr(s, data, addr,
-                    (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
+                    (guest_base ? TCG_GUEST_BASE_REG : TCG_REG_G0),
                     qemu_st_opc[memop & (MO_BSWAP | MO_SIZE)]);
 #endif /* CONFIG_SOFTMMU */
 }