From fecc7bd255206876152baab622c61902133066bd Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 24 Mar 2012 22:11:25 +0100 Subject: [PATCH] tcg-sparc: Support GUEST_BASE. Signed-off-by: Richard Henderson Signed-off-by: Michael Roth --- configure | 2 ++ tcg/sparc/tcg-target.c | 26 +++++++++++++++++++++++--- tcg/sparc/tcg-target.h | 2 ++ 3 files changed, 27 insertions(+), 3 deletions(-) diff --git a/configure b/configure index 0590f16..9139b5c 100755 --- a/configure +++ b/configure @@ -872,6 +872,7 @@ case "$cpu" in if test "$solaris" = "no" ; then QEMU_CFLAGS="-ffixed-g1 -ffixed-g6 $QEMU_CFLAGS" fi + host_guest_base="yes" ;; sparc64) LDFLAGS="-m64 $LDFLAGS" @@ -880,6 +881,7 @@ case "$cpu" in if test "$solaris" != "no" ; then QEMU_CFLAGS="-ffixed-g1 $QEMU_CFLAGS" fi + host_guest_base="yes" ;; s390) QEMU_CFLAGS="-m31 -march=z990 $QEMU_CFLAGS" diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c index d89c19b..5acfeba 100644 --- a/tcg/sparc/tcg-target.c +++ b/tcg/sparc/tcg-target.c @@ -59,6 +59,12 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { }; #endif +#ifdef CONFIG_USE_GUEST_BASE +# define TCG_GUEST_BASE_REG TCG_REG_I3 +#else +# define TCG_GUEST_BASE_REG TCG_REG_G0 +#endif + static const int tcg_target_reg_alloc_order[] = { TCG_REG_L0, TCG_REG_L1, @@ -680,6 +686,14 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) | INSN_IMM13(-(TCG_TARGET_STACK_MINFRAME + CPU_TEMP_BUF_NLONGS * (int)sizeof(long)))); + +#ifdef CONFIG_USE_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 + tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I1) | INSN_RS2(TCG_REG_G0)); tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, TCG_REG_I0); @@ -925,14 +939,18 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int sizeop) if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) { int reg64 = (datalo < 16 ? datalo : TCG_REG_O0); - tcg_out_ldst_rr(s, reg64, addr_reg, TCG_REG_G0, qemu_ld_opc[sizeop]); + tcg_out_ldst_rr(s, reg64, addr_reg, + (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), + qemu_ld_opc[sizeop]); tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX); if (reg64 != datalo) { tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64); } } else { - tcg_out_ldst_rr(s, datalo, addr_reg, TCG_REG_G0, qemu_ld_opc[sizeop]); + tcg_out_ldst_rr(s, datalo, addr_reg, + (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), + qemu_ld_opc[sizeop]); } #endif /* CONFIG_SOFTMMU */ } @@ -1026,7 +1044,9 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int sizeop) tcg_out_arith(s, TCG_REG_G1, TCG_REG_G1, TCG_REG_O2, ARITH_OR); datalo = TCG_REG_G1; } - tcg_out_ldst_rr(s, datalo, addr_reg, TCG_REG_G0, qemu_st_opc[sizeop]); + tcg_out_ldst_rr(s, datalo, addr_reg, + (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), + qemu_st_opc[sizeop]); #endif /* CONFIG_SOFTMMU */ } diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h index adca1d2..99e9f57 100644 --- a/tcg/sparc/tcg-target.h +++ b/tcg/sparc/tcg-target.h @@ -128,6 +128,8 @@ typedef enum { #define TCG_TARGET_HAS_movcond_i64 0 #endif +#define TCG_TARGET_HAS_GUEST_BASE + #ifdef CONFIG_SOLARIS #define TCG_AREG0 TCG_REG_G2 #elif HOST_LONG_BITS == 64 -- 1.8.0.2