* [Qemu-devel] [PULL for-2.4 1/5] tcg/i386: Extend addresses for 32-bit guests
2015-07-24 3:43 [Qemu-devel] [PULL for-2.4 0/5] tcg fixes Richard Henderson
@ 2015-07-24 3:44 ` Richard Henderson
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 2/5] tcg/aarch64: add ext argument to tcg_out_insn_3310 Richard Henderson
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Richard Henderson @ 2015-07-24 3:44 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
Removing the ??? comment explaining why it (mostly) worked.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1437081950-7206-2-git-send-email-rth@twiddle.net>
---
tcg/i386/tcg-target.c | 114 +++++++++++++++++++++++++++++++-------------------
1 file changed, 72 insertions(+), 42 deletions(-)
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index ff4d9cf..887f22f 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -1434,8 +1434,8 @@ static inline void setup_guest_base_seg(void) { }
#endif /* SOFTMMU */
static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg datalo, TCGReg datahi,
- TCGReg base, intptr_t ofs, int seg,
- TCGMemOp memop)
+ TCGReg base, int index, intptr_t ofs,
+ int seg, TCGMemOp memop)
{
const TCGMemOp real_bswap = memop & MO_BSWAP;
TCGMemOp bswap = real_bswap;
@@ -1448,13 +1448,16 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg datalo, TCGReg datahi,
switch (memop & MO_SSIZE) {
case MO_UB:
- tcg_out_modrm_offset(s, OPC_MOVZBL + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, OPC_MOVZBL + seg, datalo,
+ base, index, 0, ofs);
break;
case MO_SB:
- tcg_out_modrm_offset(s, OPC_MOVSBL + P_REXW + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, OPC_MOVSBL + P_REXW + seg, datalo,
+ base, index, 0, ofs);
break;
case MO_UW:
- tcg_out_modrm_offset(s, OPC_MOVZWL + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, OPC_MOVZWL + seg, datalo,
+ base, index, 0, ofs);
if (real_bswap) {
tcg_out_rolw_8(s, datalo);
}
@@ -1462,20 +1465,21 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg datalo, TCGReg datahi,
case MO_SW:
if (real_bswap) {
if (have_movbe) {
- tcg_out_modrm_offset(s, OPC_MOVBE_GyMy + P_DATA16 + seg,
- datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, OPC_MOVBE_GyMy + P_DATA16 + seg,
+ datalo, base, index, 0, ofs);
} else {
- tcg_out_modrm_offset(s, OPC_MOVZWL + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, OPC_MOVZWL + seg, datalo,
+ base, index, 0, ofs);
tcg_out_rolw_8(s, datalo);
}
tcg_out_modrm(s, OPC_MOVSWL + P_REXW, datalo, datalo);
} else {
- tcg_out_modrm_offset(s, OPC_MOVSWL + P_REXW + seg,
- datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, OPC_MOVSWL + P_REXW + seg,
+ datalo, base, index, 0, ofs);
}
break;
case MO_UL:
- tcg_out_modrm_offset(s, movop + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, movop + seg, datalo, base, index, 0, ofs);
if (bswap) {
tcg_out_bswap32(s, datalo);
}
@@ -1483,19 +1487,22 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg datalo, TCGReg datahi,
#if TCG_TARGET_REG_BITS == 64
case MO_SL:
if (real_bswap) {
- tcg_out_modrm_offset(s, movop + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, movop + seg, datalo,
+ base, index, 0, ofs);
if (bswap) {
tcg_out_bswap32(s, datalo);
}
tcg_out_ext32s(s, datalo, datalo);
} else {
- tcg_out_modrm_offset(s, OPC_MOVSLQ + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, OPC_MOVSLQ + seg, datalo,
+ base, index, 0, ofs);
}
break;
#endif
case MO_Q:
if (TCG_TARGET_REG_BITS == 64) {
- tcg_out_modrm_offset(s, movop + P_REXW + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, movop + P_REXW + seg, datalo,
+ base, index, 0, ofs);
if (bswap) {
tcg_out_bswap64(s, datalo);
}
@@ -1506,11 +1513,15 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg datalo, TCGReg datahi,
datahi = t;
}
if (base != datalo) {
- tcg_out_modrm_offset(s, movop + seg, datalo, base, ofs);
- tcg_out_modrm_offset(s, movop + seg, datahi, base, ofs + 4);
+ tcg_out_modrm_sib_offset(s, movop + seg, datalo,
+ base, index, 0, ofs);
+ tcg_out_modrm_sib_offset(s, movop + seg, datahi,
+ base, index, 0, ofs + 4);
} else {
- tcg_out_modrm_offset(s, movop + seg, datahi, base, ofs + 4);
- tcg_out_modrm_offset(s, movop + seg, datalo, base, ofs);
+ tcg_out_modrm_sib_offset(s, movop + seg, datahi,
+ base, index, 0, ofs + 4);
+ tcg_out_modrm_sib_offset(s, movop + seg, datalo,
+ base, index, 0, ofs);
}
if (bswap) {
tcg_out_bswap32(s, datalo);
@@ -1553,7 +1564,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
label_ptr, offsetof(CPUTLBEntry, addr_read));
/* TLB Hit. */
- tcg_out_qemu_ld_direct(s, datalo, datahi, TCG_REG_L1, 0, 0, opc);
+ tcg_out_qemu_ld_direct(s, datalo, datahi, TCG_REG_L1, -1, 0, 0, opc);
/* Record the current context of a load into ldst label */
add_qemu_ldst_label(s, true, oi, datalo, datahi, addrlo, addrhi,
@@ -1562,24 +1573,33 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
{
int32_t offset = GUEST_BASE;
TCGReg base = addrlo;
+ int index = -1;
int seg = 0;
- /* ??? We assume all operations have left us with register contents
- that are zero extended. So far this appears to be true. If we
- want to enforce this, we can either do an explicit zero-extension
- here, or (if GUEST_BASE == 0, or a segment register is in use)
- use the ADDR32 prefix. For now, do nothing. */
- if (GUEST_BASE && guest_base_flags) {
+ /* For a 32-bit guest, the high 32 bits may contain garbage.
+ 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) {
seg = guest_base_flags;
offset = 0;
- } else if (TCG_TARGET_REG_BITS == 64 && offset != 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;
+ if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
+ seg |= P_ADDR32;
+ }
+ } else if (TCG_TARGET_REG_BITS == 64) {
+ if (TARGET_LONG_BITS == 32) {
+ 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);
+ index = TCG_REG_L1;
+ offset = 0;
+ }
}
- tcg_out_qemu_ld_direct(s, datalo, datahi, base, offset, seg, opc);
+ tcg_out_qemu_ld_direct(s, datalo, datahi,
+ base, index, offset, seg, opc);
}
#endif
}
@@ -1697,19 +1717,29 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
TCGReg base = addrlo;
int seg = 0;
- /* ??? We assume all operations have left us with register contents
- that are zero extended. So far this appears to be true. If we
- want to enforce this, we can either do an explicit zero-extension
- here, or (if GUEST_BASE == 0, or a segment register is in use)
- use the ADDR32 prefix. For now, do nothing. */
- if (GUEST_BASE && guest_base_flags) {
+ /* See comment in tcg_out_qemu_ld re zero-extension of addrlo. */
+ if (GUEST_BASE == 0 || guest_base_flags) {
seg = guest_base_flags;
offset = 0;
- } else if (TCG_TARGET_REG_BITS == 64 && offset != 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;
+ if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
+ seg |= P_ADDR32;
+ }
+ } 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 (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);
+ tgen_arithr(s, ARITH_ADD + P_REXW, TCG_REG_L1, base);
+ base = TCG_REG_L1;
+ offset = 0;
+ } else if (TARGET_LONG_BITS == 32) {
+ tcg_out_ext32u(s, TCG_REG_L1, base);
+ base = TCG_REG_L1;
+ }
}
tcg_out_qemu_st_direct(s, datalo, datahi, base, offset, seg, opc);
--
2.4.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [Qemu-devel] [PULL for-2.4 2/5] tcg/aarch64: add ext argument to tcg_out_insn_3310
2015-07-24 3:43 [Qemu-devel] [PULL for-2.4 0/5] tcg fixes Richard Henderson
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 1/5] tcg/i386: Extend addresses for 32-bit guests Richard Henderson
@ 2015-07-24 3:44 ` Richard Henderson
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 3/5] tcg/aarch64: use 32-bit offset for 32-bit user-mode emulation Richard Henderson
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Richard Henderson @ 2015-07-24 3:44 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell, Paolo Bonzini
From: Paolo Bonzini <pbonzini@redhat.com>
The new argument lets you pick uxtw or uxtx mode for the offset
register. For now, all callers pass TCG_TYPE_I64 so that uxtx
is generated. The bits for uxtx are removed from I3312_TO_I3310.
Reported-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1436974021-28978-2-git-send-email-pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
tcg/aarch64/tcg-target.c | 41 ++++++++++++++++++++++-------------------
1 file changed, 22 insertions(+), 19 deletions(-)
diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c
index fe44ad7..d1c5508 100644
--- a/tcg/aarch64/tcg-target.c
+++ b/tcg/aarch64/tcg-target.c
@@ -280,7 +280,7 @@ typedef enum {
I3312_LDRSHX = 0x38000000 | LDST_LD_S_X << 22 | MO_16 << 30,
I3312_LDRSWX = 0x38000000 | LDST_LD_S_X << 22 | MO_32 << 30,
- I3312_TO_I3310 = 0x00206800,
+ I3312_TO_I3310 = 0x00200800,
I3312_TO_I3313 = 0x01000000,
/* Load/store register pair instructions. */
@@ -496,13 +496,14 @@ static void tcg_out_insn_3509(TCGContext *s, AArch64Insn insn, TCGType ext,
}
static void tcg_out_insn_3310(TCGContext *s, AArch64Insn insn,
- TCGReg rd, TCGReg base, TCGReg regoff)
+ TCGReg rd, TCGReg base, TCGType ext,
+ TCGReg regoff)
{
/* Note the AArch64Insn constants above are for C3.3.12. Adjust. */
- tcg_out32(s, insn | I3312_TO_I3310 | regoff << 16 | base << 5 | rd);
+ tcg_out32(s, insn | I3312_TO_I3310 | regoff << 16 |
+ 0x4000 | ext << 13 | base << 5 | rd);
}
-
static void tcg_out_insn_3312(TCGContext *s, AArch64Insn insn,
TCGReg rd, TCGReg rn, intptr_t offset)
{
@@ -677,7 +678,7 @@ static void tcg_out_ldst(TCGContext *s, AArch64Insn insn,
/* Worst-case scenario, move offset to temp register, use reg offset. */
tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_TMP, offset);
- tcg_out_ldst_r(s, insn, rd, rn, TCG_REG_TMP);
+ tcg_out_ldst_r(s, insn, rd, rn, TCG_TYPE_I64, TCG_REG_TMP);
}
static inline void tcg_out_mov(TCGContext *s,
@@ -1111,48 +1112,49 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, TCGMemOp memop, TCGType ext,
TCGReg data_r, TCGReg addr_r, TCGReg off_r)
{
const TCGMemOp bswap = memop & MO_BSWAP;
+ const TCGType otype = TCG_TYPE_I64;
switch (memop & MO_SSIZE) {
case MO_UB:
- tcg_out_ldst_r(s, I3312_LDRB, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_LDRB, data_r, addr_r, otype, off_r);
break;
case MO_SB:
tcg_out_ldst_r(s, ext ? I3312_LDRSBX : I3312_LDRSBW,
- data_r, addr_r, off_r);
+ data_r, addr_r, otype, off_r);
break;
case MO_UW:
- tcg_out_ldst_r(s, I3312_LDRH, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_LDRH, data_r, addr_r, otype, off_r);
if (bswap) {
tcg_out_rev16(s, data_r, data_r);
}
break;
case MO_SW:
if (bswap) {
- tcg_out_ldst_r(s, I3312_LDRH, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_LDRH, data_r, addr_r, otype, off_r);
tcg_out_rev16(s, data_r, data_r);
tcg_out_sxt(s, ext, MO_16, data_r, data_r);
} else {
- tcg_out_ldst_r(s, ext ? I3312_LDRSHX : I3312_LDRSHW,
- data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, (ext ? I3312_LDRSHX : I3312_LDRSHW),
+ data_r, addr_r, otype, off_r);
}
break;
case MO_UL:
- tcg_out_ldst_r(s, I3312_LDRW, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_LDRW, data_r, addr_r, otype, off_r);
if (bswap) {
tcg_out_rev32(s, data_r, data_r);
}
break;
case MO_SL:
if (bswap) {
- tcg_out_ldst_r(s, I3312_LDRW, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_LDRW, data_r, addr_r, otype, off_r);
tcg_out_rev32(s, data_r, data_r);
tcg_out_sxt(s, TCG_TYPE_I64, MO_32, data_r, data_r);
} else {
- tcg_out_ldst_r(s, I3312_LDRSWX, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_LDRSWX, data_r, addr_r, otype, off_r);
}
break;
case MO_Q:
- tcg_out_ldst_r(s, I3312_LDRX, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_LDRX, data_r, addr_r, otype, off_r);
if (bswap) {
tcg_out_rev64(s, data_r, data_r);
}
@@ -1166,31 +1168,32 @@ static void tcg_out_qemu_st_direct(TCGContext *s, TCGMemOp memop,
TCGReg data_r, TCGReg addr_r, TCGReg off_r)
{
const TCGMemOp bswap = memop & MO_BSWAP;
+ const TCGType otype = TCG_TYPE_I64;
switch (memop & MO_SIZE) {
case MO_8:
- tcg_out_ldst_r(s, I3312_STRB, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_STRB, data_r, addr_r, otype, off_r);
break;
case MO_16:
if (bswap && data_r != TCG_REG_XZR) {
tcg_out_rev16(s, TCG_REG_TMP, data_r);
data_r = TCG_REG_TMP;
}
- tcg_out_ldst_r(s, I3312_STRH, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_STRH, data_r, addr_r, otype, off_r);
break;
case MO_32:
if (bswap && data_r != TCG_REG_XZR) {
tcg_out_rev32(s, TCG_REG_TMP, data_r);
data_r = TCG_REG_TMP;
}
- tcg_out_ldst_r(s, I3312_STRW, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_STRW, data_r, addr_r, otype, off_r);
break;
case MO_64:
if (bswap && data_r != TCG_REG_XZR) {
tcg_out_rev64(s, TCG_REG_TMP, data_r);
data_r = TCG_REG_TMP;
}
- tcg_out_ldst_r(s, I3312_STRX, data_r, addr_r, off_r);
+ tcg_out_ldst_r(s, I3312_STRX, data_r, addr_r, otype, off_r);
break;
default:
tcg_abort();
--
2.4.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [Qemu-devel] [PULL for-2.4 3/5] tcg/aarch64: use 32-bit offset for 32-bit user-mode emulation
2015-07-24 3:43 [Qemu-devel] [PULL for-2.4 0/5] tcg fixes Richard Henderson
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 1/5] tcg/i386: Extend addresses for 32-bit guests Richard Henderson
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 2/5] tcg/aarch64: add ext argument to tcg_out_insn_3310 Richard Henderson
@ 2015-07-24 3:44 ` Richard Henderson
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 4/5] tcg/aarch64: use 32-bit offset for 32-bit softmmu emulation Richard Henderson
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Richard Henderson @ 2015-07-24 3:44 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell, Paolo Bonzini
From: Paolo Bonzini <pbonzini@redhat.com>
Thanks to the previous patch, it is now easy for tcg_out_qemu_ld and
tcg_out_qemu_st to use a 32-bit zero extended offset. However, the
guest base register x28 must be the base and addr_reg must be the
index.
Reported-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1436974021-28978-3-git-send-email-pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
tcg/aarch64/tcg-target.c | 26 ++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)
diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c
index d1c5508..4aca883 100644
--- a/tcg/aarch64/tcg-target.c
+++ b/tcg/aarch64/tcg-target.c
@@ -1109,10 +1109,10 @@ static void tcg_out_tlb_read(TCGContext *s, TCGReg addr_reg, TCGMemOp s_bits,
#endif /* CONFIG_SOFTMMU */
static void tcg_out_qemu_ld_direct(TCGContext *s, TCGMemOp memop, TCGType ext,
- TCGReg data_r, TCGReg addr_r, TCGReg off_r)
+ TCGReg data_r, TCGReg addr_r,
+ TCGType otype, TCGReg off_r)
{
const TCGMemOp bswap = memop & MO_BSWAP;
- const TCGType otype = TCG_TYPE_I64;
switch (memop & MO_SSIZE) {
case MO_UB:
@@ -1165,10 +1165,10 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, TCGMemOp memop, TCGType ext,
}
static void tcg_out_qemu_st_direct(TCGContext *s, TCGMemOp memop,
- TCGReg data_r, TCGReg addr_r, TCGReg off_r)
+ TCGReg data_r, TCGReg addr_r,
+ TCGType otype, TCGReg off_r)
{
const TCGMemOp bswap = memop & MO_BSWAP;
- const TCGType otype = TCG_TYPE_I64;
switch (memop & MO_SIZE) {
case MO_8:
@@ -1210,12 +1210,15 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
tcg_insn_unit *label_ptr;
tcg_out_tlb_read(s, addr_reg, s_bits, &label_ptr, mem_index, 1);
- tcg_out_qemu_ld_direct(s, memop, ext, data_reg, addr_reg, TCG_REG_X1);
+ tcg_out_qemu_ld_direct(s, memop, ext, data_reg, addr_reg,
+ TCG_TYPE_I64, TCG_REG_X1);
add_qemu_ldst_label(s, true, oi, ext, data_reg, addr_reg,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
- tcg_out_qemu_ld_direct(s, memop, ext, data_reg, addr_reg,
- GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR);
+ const TCGType otype = TARGET_LONG_BITS == 64 ? TCG_TYPE_I64 : TCG_TYPE_I32;
+ tcg_out_qemu_ld_direct(s, memop, ext, data_reg,
+ GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
+ otype, addr_reg);
#endif /* CONFIG_SOFTMMU */
}
@@ -1229,12 +1232,15 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
tcg_insn_unit *label_ptr;
tcg_out_tlb_read(s, addr_reg, s_bits, &label_ptr, mem_index, 0);
- tcg_out_qemu_st_direct(s, memop, data_reg, addr_reg, TCG_REG_X1);
+ tcg_out_qemu_st_direct(s, memop, data_reg, addr_reg,
+ TCG_TYPE_I64, TCG_REG_X1);
add_qemu_ldst_label(s, false, oi, s_bits == MO_64, data_reg, addr_reg,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
- tcg_out_qemu_st_direct(s, memop, data_reg, addr_reg,
- GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR);
+ const TCGType otype = TARGET_LONG_BITS == 64 ? TCG_TYPE_I64 : TCG_TYPE_I32;
+ tcg_out_qemu_st_direct(s, memop, data_reg,
+ GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
+ otype, addr_reg);
#endif /* CONFIG_SOFTMMU */
}
--
2.4.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [Qemu-devel] [PULL for-2.4 4/5] tcg/aarch64: use 32-bit offset for 32-bit softmmu emulation
2015-07-24 3:43 [Qemu-devel] [PULL for-2.4 0/5] tcg fixes Richard Henderson
` (2 preceding siblings ...)
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 3/5] tcg/aarch64: use 32-bit offset for 32-bit user-mode emulation Richard Henderson
@ 2015-07-24 3:44 ` Richard Henderson
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 5/5] tcg/optimize: fix tcg_opt_gen_movi Richard Henderson
2015-07-24 11:09 ` [Qemu-devel] [PULL for-2.4 0/5] tcg fixes Peter Maydell
5 siblings, 0 replies; 7+ messages in thread
From: Richard Henderson @ 2015-07-24 3:44 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
Similar to the same fix for user-mode, except this instance
occurs on the softmmu path. Again, the tlb addend must be
the base register, while the guest address is the index.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
tcg/aarch64/tcg-target.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c
index 4aca883..b7ec4f5 100644
--- a/tcg/aarch64/tcg-target.c
+++ b/tcg/aarch64/tcg-target.c
@@ -1204,18 +1204,18 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
TCGMemOpIdx oi, TCGType ext)
{
TCGMemOp memop = get_memop(oi);
+ const TCGType otype = TARGET_LONG_BITS == 64 ? TCG_TYPE_I64 : TCG_TYPE_I32;
#ifdef CONFIG_SOFTMMU
unsigned mem_index = get_mmuidx(oi);
TCGMemOp s_bits = memop & MO_SIZE;
tcg_insn_unit *label_ptr;
tcg_out_tlb_read(s, addr_reg, s_bits, &label_ptr, mem_index, 1);
- tcg_out_qemu_ld_direct(s, memop, ext, data_reg, addr_reg,
- TCG_TYPE_I64, TCG_REG_X1);
+ tcg_out_qemu_ld_direct(s, memop, ext, data_reg,
+ TCG_REG_X1, otype, addr_reg);
add_qemu_ldst_label(s, true, oi, ext, data_reg, addr_reg,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
- const TCGType otype = TARGET_LONG_BITS == 64 ? TCG_TYPE_I64 : TCG_TYPE_I32;
tcg_out_qemu_ld_direct(s, memop, ext, data_reg,
GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
otype, addr_reg);
@@ -1226,18 +1226,18 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
TCGMemOpIdx oi)
{
TCGMemOp memop = get_memop(oi);
+ const TCGType otype = TARGET_LONG_BITS == 64 ? TCG_TYPE_I64 : TCG_TYPE_I32;
#ifdef CONFIG_SOFTMMU
unsigned mem_index = get_mmuidx(oi);
TCGMemOp s_bits = memop & MO_SIZE;
tcg_insn_unit *label_ptr;
tcg_out_tlb_read(s, addr_reg, s_bits, &label_ptr, mem_index, 0);
- tcg_out_qemu_st_direct(s, memop, data_reg, addr_reg,
- TCG_TYPE_I64, TCG_REG_X1);
+ tcg_out_qemu_st_direct(s, memop, data_reg,
+ TCG_REG_X1, otype, addr_reg);
add_qemu_ldst_label(s, false, oi, s_bits == MO_64, data_reg, addr_reg,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
- const TCGType otype = TARGET_LONG_BITS == 64 ? TCG_TYPE_I64 : TCG_TYPE_I32;
tcg_out_qemu_st_direct(s, memop, data_reg,
GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
otype, addr_reg);
--
2.4.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [Qemu-devel] [PULL for-2.4 5/5] tcg/optimize: fix tcg_opt_gen_movi
2015-07-24 3:43 [Qemu-devel] [PULL for-2.4 0/5] tcg fixes Richard Henderson
` (3 preceding siblings ...)
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 4/5] tcg/aarch64: use 32-bit offset for 32-bit softmmu emulation Richard Henderson
@ 2015-07-24 3:44 ` Richard Henderson
2015-07-24 11:09 ` [Qemu-devel] [PULL for-2.4 0/5] tcg fixes Peter Maydell
5 siblings, 0 replies; 7+ messages in thread
From: Richard Henderson @ 2015-07-24 3:44 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell, Aurelien Jarno
From: Aurelien Jarno <aurelien@aurel32.net>
Due to a copy&paste, the new op value is tested against mov_i32 instead
of movi_i32. The test is therefore always false. Fix that.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <1436544211-2769-1-git-send-email-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
tcg/optimize.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 0f6f700..18283cf 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -205,7 +205,7 @@ static void tcg_opt_gen_movi(TCGContext *s, TCGOp *op, TCGArg *args,
temps[dst].state = TCG_TEMP_CONST;
temps[dst].val = val;
mask = val;
- if (TCG_TARGET_REG_BITS > 32 && new_op == INDEX_op_mov_i32) {
+ if (TCG_TARGET_REG_BITS > 32 && new_op == INDEX_op_movi_i32) {
/* High bits of the destination are now garbage. */
mask |= ~0xffffffffull;
}
--
2.4.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [Qemu-devel] [PULL for-2.4 0/5] tcg fixes
2015-07-24 3:43 [Qemu-devel] [PULL for-2.4 0/5] tcg fixes Richard Henderson
` (4 preceding siblings ...)
2015-07-24 3:44 ` [Qemu-devel] [PULL for-2.4 5/5] tcg/optimize: fix tcg_opt_gen_movi Richard Henderson
@ 2015-07-24 11:09 ` Peter Maydell
5 siblings, 0 replies; 7+ messages in thread
From: Peter Maydell @ 2015-07-24 11:09 UTC (permalink / raw)
To: Richard Henderson; +Cc: QEMU Developers
On 24 July 2015 at 04:43, Richard Henderson <rth@twiddle.net> wrote:
> Whee. Back from holidays just in time for -rc3.
>
> Three of these four patches attack the truncation problem that Leon
> pointed out for us affecting mips. The last is a patch that Aurelien
> asked to be included on IRC.
>
>
> r~
>
>
> The following changes since commit 12e21eb088a51161c78ee39ed54ac56ebcff4243:
>
> Merge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging (2015-07-23 12:54:53 +0100)
>
> are available in the git repository at:
>
> git://github.com/rth7680/qemu.git tags/pull-tcg-20150723
>
> for you to fetch changes up to 961521261a3d600b0695b2e6d2b0f490076f7e90:
>
> tcg/optimize: fix tcg_opt_gen_movi (2015-07-23 20:37:12 -0700)
>
> ----------------------------------------------------------------
> Last minute fixes for 2.4.
Applied, thanks.
-- PMM
^ permalink raw reply [flat|nested] 7+ messages in thread