From: matheus.ferst@eldorado.org.br
To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: richard.henderson@linaro.org, f4bug@amsat.org,
luis.pires@eldorado.org.br, lagarcia@br.ibm.com,
bruno.larsen@eldorado.org.br, matheus.ferst@eldorado.org.br,
david@gibson.dropbear.id.au
Subject: [PATCH v4 24/31] target/ppc: Move D/DS/X-form integer loads to decodetree
Date: Wed, 12 May 2021 15:54:34 -0300 [thread overview]
Message-ID: <20210512185441.3619828-25-matheus.ferst@eldorado.org.br> (raw)
In-Reply-To: <20210512185441.3619828-1-matheus.ferst@eldorado.org.br>
From: Richard Henderson <richard.henderson@linaro.org>
These are all connected by macros in the legacy decoding.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
v4:
- Common code of do_ldst_D and do_ldst_X moved to do_ldst;
- @D{,S} instead of @PLS_D{,S} for non-prefixed loads;
- do_ldst_PLS_D moved to the next patch.
---
target/ppc/insn32.decode | 37 ++++++
target/ppc/translate.c | 147 ++++-----------------
target/ppc/translate/fixedpoint-impl.c.inc | 89 +++++++++++++
3 files changed, 150 insertions(+), 123 deletions(-)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index d93ae905a4..860b96d866 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -20,6 +20,43 @@
&D rt ra si:int64_t
@D ...... rt:5 ra:5 si:s16 &D
+%ds_si 2:s14 !function=times_4
+@DS ...... rt:5 ra:5 .............. .. &D si=%ds_si
+
+&X rt ra rb
+@X ...... rt:5 ra:5 rb:5 .......... . &X
+
+### Fixed-Point Load Instructions
+
+LBZ 100010 ..... ..... ................ @D
+LBZU 100011 ..... ..... ................ @D
+LBZX 011111 ..... ..... ..... 0001010111 - @X
+LBZUX 011111 ..... ..... ..... 0001110111 - @X
+
+LHZ 101000 ..... ..... ................ @D
+LHZU 101001 ..... ..... ................ @D
+LHZX 011111 ..... ..... ..... 0100010111 - @X
+LHZUX 011111 ..... ..... ..... 0100110111 - @X
+
+LHA 101010 ..... ..... ................ @D
+LHAU 101011 ..... ..... ................ @D
+LHAX 011111 ..... ..... ..... 0101010111 - @X
+LHAXU 011111 ..... ..... ..... 0101110111 - @X
+
+LWZ 100000 ..... ..... ................ @D
+LWZU 100001 ..... ..... ................ @D
+LWZX 011111 ..... ..... ..... 0000010111 - @X
+LWZUX 011111 ..... ..... ..... 0000110111 - @X
+
+LWA 111010 ..... ..... ..............10 @DS
+LWAX 011111 ..... ..... ..... 0101010101 - @X
+LWAUX 011111 ..... ..... ..... 0101110101 - @X
+
+LD 111010 ..... ..... ..............00 @DS
+LDU 111010 ..... ..... ..............01 @DS
+LDX 011111 ..... ..... ..... 0000010101 - @X
+LDUX 011111 ..... ..... ..... 0000110101 - @X
+
### Fixed-Point Arithmetic Instructions
ADDI 001110 ..... ..... ................ @D
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 7f2ebcb442..32d217071b 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -3412,54 +3412,6 @@ GEN_QEMU_STORE_64(st64, DEF_MEMOP(MO_Q))
GEN_QEMU_STORE_64(st64r, BSWAP_MEMOP(MO_Q))
#endif
-#define GEN_LD(name, ldop, opc, type) \
-static void glue(gen_, name)(DisasContext *ctx) \
-{ \
- TCGv EA; \
- gen_set_access_type(ctx, ACCESS_INT); \
- EA = tcg_temp_new(); \
- gen_addr_imm_index(ctx, EA, 0); \
- gen_qemu_##ldop(ctx, cpu_gpr[rD(ctx->opcode)], EA); \
- tcg_temp_free(EA); \
-}
-
-#define GEN_LDU(name, ldop, opc, type) \
-static void glue(gen_, name##u)(DisasContext *ctx) \
-{ \
- TCGv EA; \
- if (unlikely(rA(ctx->opcode) == 0 || \
- rA(ctx->opcode) == rD(ctx->opcode))) { \
- gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); \
- return; \
- } \
- gen_set_access_type(ctx, ACCESS_INT); \
- EA = tcg_temp_new(); \
- if (type == PPC_64B) \
- gen_addr_imm_index(ctx, EA, 0x03); \
- else \
- gen_addr_imm_index(ctx, EA, 0); \
- gen_qemu_##ldop(ctx, cpu_gpr[rD(ctx->opcode)], EA); \
- tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); \
- tcg_temp_free(EA); \
-}
-
-#define GEN_LDUX(name, ldop, opc2, opc3, type) \
-static void glue(gen_, name##ux)(DisasContext *ctx) \
-{ \
- TCGv EA; \
- if (unlikely(rA(ctx->opcode) == 0 || \
- rA(ctx->opcode) == rD(ctx->opcode))) { \
- gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); \
- return; \
- } \
- gen_set_access_type(ctx, ACCESS_INT); \
- EA = tcg_temp_new(); \
- gen_addr_reg_index(ctx, EA); \
- gen_qemu_##ldop(ctx, cpu_gpr[rD(ctx->opcode)], EA); \
- tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); \
- tcg_temp_free(EA); \
-}
-
#define GEN_LDX_E(name, ldop, opc2, opc3, type, type2, chk) \
static void glue(gen_, name##x)(DisasContext *ctx) \
{ \
@@ -3478,21 +3430,6 @@ static void glue(gen_, name##x)(DisasContext *ctx) \
#define GEN_LDX_HVRM(name, ldop, opc2, opc3, type) \
GEN_LDX_E(name, ldop, opc2, opc3, type, PPC_NONE, CHK_HVRM)
-#define GEN_LDS(name, ldop, op, type) \
-GEN_LD(name, ldop, op | 0x20, type); \
-GEN_LDU(name, ldop, op | 0x21, type); \
-GEN_LDUX(name, ldop, 0x17, op | 0x01, type); \
-GEN_LDX(name, ldop, 0x17, op | 0x00, type)
-
-/* lbz lbzu lbzux lbzx */
-GEN_LDS(lbz, ld8u, 0x02, PPC_INTEGER);
-/* lha lhau lhaux lhax */
-GEN_LDS(lha, ld16s, 0x0A, PPC_INTEGER);
-/* lhz lhzu lhzux lhzx */
-GEN_LDS(lhz, ld16u, 0x08, PPC_INTEGER);
-/* lwz lwzu lwzux lwzx */
-GEN_LDS(lwz, ld32u, 0x00, PPC_INTEGER);
-
#define GEN_LDEPX(name, ldop, opc2, opc3) \
static void glue(gen_, name##epx)(DisasContext *ctx) \
{ \
@@ -3513,47 +3450,12 @@ GEN_LDEPX(ld, DEF_MEMOP(MO_Q), 0x1D, 0x00)
#endif
#if defined(TARGET_PPC64)
-/* lwaux */
-GEN_LDUX(lwa, ld32s, 0x15, 0x0B, PPC_64B);
-/* lwax */
-GEN_LDX(lwa, ld32s, 0x15, 0x0A, PPC_64B);
-/* ldux */
-GEN_LDUX(ld, ld64_i64, 0x15, 0x01, PPC_64B);
-/* ldx */
-GEN_LDX(ld, ld64_i64, 0x15, 0x00, PPC_64B);
-
/* CI load/store variants */
GEN_LDX_HVRM(ldcix, ld64_i64, 0x15, 0x1b, PPC_CILDST)
GEN_LDX_HVRM(lwzcix, ld32u, 0x15, 0x15, PPC_CILDST)
GEN_LDX_HVRM(lhzcix, ld16u, 0x15, 0x19, PPC_CILDST)
GEN_LDX_HVRM(lbzcix, ld8u, 0x15, 0x1a, PPC_CILDST)
-static void gen_ld(DisasContext *ctx)
-{
- TCGv EA;
- if (Rc(ctx->opcode)) {
- if (unlikely(rA(ctx->opcode) == 0 ||
- rA(ctx->opcode) == rD(ctx->opcode))) {
- gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
- return;
- }
- }
- gen_set_access_type(ctx, ACCESS_INT);
- EA = tcg_temp_new();
- gen_addr_imm_index(ctx, EA, 0x03);
- if (ctx->opcode & 0x02) {
- /* lwa (lwau is undefined) */
- gen_qemu_ld32s(ctx, cpu_gpr[rD(ctx->opcode)], EA);
- } else {
- /* ld - ldu */
- gen_qemu_ld64_i64(ctx, cpu_gpr[rD(ctx->opcode)], EA);
- }
- if (Rc(ctx->opcode)) {
- tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA);
- }
- tcg_temp_free(EA);
-}
-
/* lq */
static void gen_lq(DisasContext *ctx)
{
@@ -7726,6 +7628,14 @@ static inline void set_avr64(int regno, TCGv_i64 src, bool high)
tcg_gen_st_i64(src, cpu_env, avr64_offset(regno, high));
}
+/*
+ * Helpers for decodetree used by !function for decoding arguments.
+ */
+static int times_4(DisasContext *ctx, int x)
+{
+ return x * 4;
+}
+
/*
* Helpers for trans_* functions to check for specific insns flags.
* Use token pasting to ensure that we use the proper flag with the
@@ -7752,6 +7662,21 @@ static inline void set_avr64(int regno, TCGv_i64 src, bool high)
# define REQUIRE_64BIT(CTX) REQUIRE_INSNS_FLAGS(CTX, 64B)
#endif
+/*
+ * Helpers for implementing sets of trans_* functions.
+ * Defer the implementation of NAME to FUNC, with optional extra arguments.
+ */
+#define TRANS(NAME, FUNC, ...) \
+ static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
+ { return FUNC(ctx, a, __VA_ARGS__); }
+
+#define TRANS64(NAME, FUNC, ...) \
+ static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
+ { REQUIRE_64BIT(ctx); return FUNC(ctx, a, __VA_ARGS__); }
+
+/* TODO: More TRANS* helpers for extra insn_flags checks. */
+
+
#include "decode-insn32.c.inc"
#include "decode-insn64.c.inc"
#include "translate/fixedpoint-impl.c.inc"
@@ -7936,7 +7861,6 @@ GEN_HANDLER2_E(extswsli1, "extswsli", 0x1F, 0x1B, 0x1B, 0x00000000,
PPC_NONE, PPC2_ISA300),
#endif
#if defined(TARGET_PPC64)
-GEN_HANDLER(ld, 0x3A, 0xFF, 0xFF, 0x00000000, PPC_64B),
GEN_HANDLER(lq, 0x38, 0xFF, 0xFF, 0x00000000, PPC_64BX),
GEN_HANDLER(std, 0x3E, 0xFF, 0xFF, 0x00000000, PPC_64B),
#endif
@@ -8302,34 +8226,11 @@ GEN_PPC64_R2(rldcr, 0x1E, 0x09),
GEN_PPC64_R4(rldimi, 0x1E, 0x06),
#endif
-#undef GEN_LD
-#undef GEN_LDU
-#undef GEN_LDUX
#undef GEN_LDX_E
-#undef GEN_LDS
-#define GEN_LD(name, ldop, opc, type) \
-GEN_HANDLER(name, opc, 0xFF, 0xFF, 0x00000000, type),
-#define GEN_LDU(name, ldop, opc, type) \
-GEN_HANDLER(name##u, opc, 0xFF, 0xFF, 0x00000000, type),
-#define GEN_LDUX(name, ldop, opc2, opc3, type) \
-GEN_HANDLER(name##ux, 0x1F, opc2, opc3, 0x00000001, type),
#define GEN_LDX_E(name, ldop, opc2, opc3, type, type2, chk) \
GEN_HANDLER_E(name##x, 0x1F, opc2, opc3, 0x00000001, type, type2),
-#define GEN_LDS(name, ldop, op, type) \
-GEN_LD(name, ldop, op | 0x20, type) \
-GEN_LDU(name, ldop, op | 0x21, type) \
-GEN_LDUX(name, ldop, 0x17, op | 0x01, type) \
-GEN_LDX(name, ldop, 0x17, op | 0x00, type)
-
-GEN_LDS(lbz, ld8u, 0x02, PPC_INTEGER)
-GEN_LDS(lha, ld16s, 0x0A, PPC_INTEGER)
-GEN_LDS(lhz, ld16u, 0x08, PPC_INTEGER)
-GEN_LDS(lwz, ld32u, 0x00, PPC_INTEGER)
+
#if defined(TARGET_PPC64)
-GEN_LDUX(lwa, ld32s, 0x15, 0x0B, PPC_64B)
-GEN_LDX(lwa, ld32s, 0x15, 0x0A, PPC_64B)
-GEN_LDUX(ld, ld64_i64, 0x15, 0x01, PPC_64B)
-GEN_LDX(ld, ld64_i64, 0x15, 0x00, PPC_64B)
GEN_LDX_E(ldbr, ld64ur_i64, 0x14, 0x10, PPC_NONE, PPC2_DBRX, CHK_NONE)
/* HV/P7 and later only */
diff --git a/target/ppc/translate/fixedpoint-impl.c.inc b/target/ppc/translate/fixedpoint-impl.c.inc
index 9a8da29c64..4c3eff6979 100644
--- a/target/ppc/translate/fixedpoint-impl.c.inc
+++ b/target/ppc/translate/fixedpoint-impl.c.inc
@@ -36,6 +36,95 @@ static bool resolve_PLS_D(DisasContext *ctx, arg_D *d, arg_PLS_D *a)
return true;
}
+/*
+ * Fixed-Point Load/Store Instructions
+ */
+
+static bool do_ldst(DisasContext *ctx, int rt, int ra, TCGv displ, bool update,
+ bool store, MemOp mop)
+{
+ TCGv ea;
+
+ if (update && (ra == 0 || (!store && ra == rt))) {
+ gen_invalid(ctx);
+ return true;
+ }
+ gen_set_access_type(ctx, ACCESS_INT);
+
+ ea = tcg_temp_new();
+ if (ra) {
+ tcg_gen_add_tl(ea, cpu_gpr[ra], displ);
+ } else {
+ tcg_gen_mov_tl(ea, displ);
+ }
+ if (NARROW_MODE(ctx)) {
+ tcg_gen_ext32u_tl(ea, ea);
+ }
+ mop ^= ctx->default_tcg_memop_mask;
+ if (store) {
+ tcg_gen_qemu_st_tl(cpu_gpr[rt], ea, ctx->mem_idx, mop);
+ } else {
+ tcg_gen_qemu_ld_tl(cpu_gpr[rt], ea, ctx->mem_idx, mop);
+ }
+ if (update) {
+ tcg_gen_mov_tl(cpu_gpr[ra], ea);
+ }
+ tcg_temp_free(ea);
+
+ return true;
+}
+
+static bool do_ldst_D(DisasContext *ctx, arg_D *a, bool update, bool store,
+ MemOp mop)
+{
+ return do_ldst(ctx, a->rt, a->ra, tcg_constant_tl(a->si), update, store, mop);
+}
+
+static bool do_ldst_X(DisasContext *ctx, arg_X *a, bool update,
+ bool store, MemOp mop)
+{
+ return do_ldst(ctx, a->rt, a->ra, cpu_gpr[a->rb], update, store, mop);
+}
+
+/* Load Byte and Zero */
+TRANS(LBZ, do_ldst_D, false, false, MO_UB)
+TRANS(LBZX, do_ldst_X, false, false, MO_UB)
+TRANS(LBZU, do_ldst_D, true, false, MO_UB)
+TRANS(LBZUX, do_ldst_X, true, false, MO_UB)
+
+/* Load Halfword and Zero */
+TRANS(LHZ, do_ldst_D, false, false, MO_UW)
+TRANS(LHZX, do_ldst_X, false, false, MO_UW)
+TRANS(LHZU, do_ldst_D, true, false, MO_UW)
+TRANS(LHZUX, do_ldst_X, true, false, MO_UW)
+
+/* Load Halfword Algebraic */
+TRANS(LHA, do_ldst_D, false, false, MO_SW)
+TRANS(LHAX, do_ldst_X, false, false, MO_SW)
+TRANS(LHAU, do_ldst_D, true, false, MO_SW)
+TRANS(LHAXU, do_ldst_X, true, false, MO_SW)
+
+/* Load Word and Zero */
+TRANS(LWZ, do_ldst_D, false, false, MO_UL)
+TRANS(LWZX, do_ldst_X, false, false, MO_UL)
+TRANS(LWZU, do_ldst_D, true, false, MO_UL)
+TRANS(LWZUX, do_ldst_X, true, false, MO_UL)
+
+/* Load Word Algebraic */
+TRANS64(LWA, do_ldst_D, false, false, MO_SL)
+TRANS64(LWAX, do_ldst_X, false, false, MO_SL)
+TRANS64(LWAUX, do_ldst_X, true, false, MO_SL)
+
+/* Load Doubleword */
+TRANS64(LD, do_ldst_D, false, false, MO_Q)
+TRANS64(LDX, do_ldst_X, false, false, MO_Q)
+TRANS64(LDU, do_ldst_D, true, false, MO_Q)
+TRANS64(LDUX, do_ldst_X, true, false, MO_Q)
+
+/*
+ * Fixed-Point Arithmetic Instructions
+ */
+
static bool trans_ADDI(DisasContext *ctx, arg_D *a)
{
if (a->ra) {
--
2.25.1
next prev parent reply other threads:[~2021-05-12 19:33 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 18:54 [PATCH v4 00/31] Base for adding PowerPC 64-bit instructions matheus.ferst
2021-05-12 18:54 ` [PATCH v4 01/31] target/ppc: Add cia field to DisasContext matheus.ferst
2021-05-13 4:03 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 02/31] target/ppc: Split out decode_legacy matheus.ferst
2021-05-13 4:03 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 03/31] target/ppc: Move DISAS_NORETURN setting into gen_exception* matheus.ferst
2021-05-13 4:06 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 04/31] target/ppc: Remove special case for POWERPC_SYSCALL matheus.ferst
2021-05-13 4:06 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 05/31] target/ppc: Remove special case for POWERPC_EXCP_TRAP matheus.ferst
2021-05-13 4:07 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 06/31] target/ppc: Simplify gen_debug_exception matheus.ferst
2021-05-13 4:08 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 07/31] target/ppc: Introduce DISAS_{EXIT,CHAIN}{,_UPDATE} matheus.ferst
2021-05-13 4:10 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 08/31] target/ppc: Replace POWERPC_EXCP_SYNC with DISAS_EXIT matheus.ferst
2021-05-12 19:31 ` Bruno Piazera Larsen
2021-05-13 4:11 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 09/31] target/ppc: Remove unnecessary gen_io_end calls matheus.ferst
2021-05-13 4:12 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 10/31] target/ppc: Introduce gen_icount_io_start matheus.ferst
2021-05-12 19:21 ` Matheus K. Ferst
2021-05-13 4:14 ` David Gibson
2021-05-12 18:54 ` [PATCH v4 11/31] target/ppc: Replace POWERPC_EXCP_STOP with DISAS_EXIT_UPDATE matheus.ferst
2021-05-12 18:54 ` [PATCH v4 12/31] target/ppc: Replace POWERPC_EXCP_BRANCH with DISAS_NORETURN matheus.ferst
2021-05-12 18:54 ` [PATCH v4 13/31] target/ppc: Remove DisasContext.exception matheus.ferst
2021-05-12 18:54 ` [PATCH v4 14/31] target/ppc: Move single-step check to ppc_tr_tb_stop matheus.ferst
2021-05-12 18:54 ` [PATCH v4 15/31] target/ppc: Tidy exception vs exit_tb matheus.ferst
2021-05-12 18:54 ` [PATCH v4 16/31] target/ppc: Mark helper_raise_exception* as noreturn matheus.ferst
2021-05-12 18:54 ` [PATCH v4 17/31] target/ppc: Use translator_loop_temp_check matheus.ferst
2021-05-12 19:45 ` Bruno Piazera Larsen
2021-05-12 18:54 ` [PATCH v4 18/31] target/ppc: Introduce macros to check isa extensions matheus.ferst
2021-05-12 18:54 ` [PATCH v4 19/31] target/ppc: Move page crossing check to ppc_tr_translate_insn matheus.ferst
2021-05-12 18:54 ` [PATCH v4 20/31] target/ppc: Add infrastructure for prefixed insns matheus.ferst
2021-05-12 18:54 ` [PATCH v4 21/31] target/ppc: Move ADDI, ADDIS to decodetree, implement PADDI matheus.ferst
2021-05-12 18:54 ` [PATCH v4 22/31] target/ppc: Implement PNOP matheus.ferst
2021-05-13 10:37 ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 23/31] TCG: add tcg_constant_tl matheus.ferst
2021-05-13 10:42 ` Richard Henderson
2021-05-12 18:54 ` matheus.ferst [this message]
2021-05-12 18:54 ` [PATCH v4 25/31] target/ppc: Implement prefixed integer load instructions matheus.ferst
2021-05-13 10:50 ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 26/31] target/ppc: Move D/DS/X-form integer stores to decodetree matheus.ferst
2021-05-12 18:54 ` [PATCH v4 27/31] target/ppc: Implement prefixed integer store instructions matheus.ferst
2021-05-12 18:54 ` [PATCH v4 28/31] target/ppc: Implement setbc/setbcr/stnbc/setnbcr instructions matheus.ferst
2021-05-13 11:01 ` Richard Henderson
2021-05-13 11:43 ` Matheus K. Ferst
2021-05-12 18:54 ` [PATCH v4 29/31] target/ppc: Implement cfuged instruction matheus.ferst
2021-05-13 11:31 ` Richard Henderson
2021-05-13 12:24 ` Matheus K. Ferst
2021-05-14 0:01 ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 30/31] target/ppc: Implement vcfuged instruction matheus.ferst
2021-05-13 11:36 ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 31/31] target/ppc: Move addpcis to decodetree matheus.ferst
2021-05-13 11:40 ` Richard Henderson
2021-05-13 4:22 ` [PATCH v4 00/31] Base for adding PowerPC 64-bit instructions David Gibson
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