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-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/arm/configs/multi_v5_defconfig5
-rw-r--r--arch/arm/configs/mvebu_v7_defconfig2
-rw-r--r--arch/arm/configs/orion5x_defconfig3
-rw-r--r--arch/arm64/Kconfig2
-rw-r--r--arch/arm64/boot/dts/apm/apm-shadowcat.dtsi1
-rw-r--r--arch/arm64/boot/dts/apm/apm-storm.dtsi1
-rw-r--r--arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi74
-rw-r--r--arch/arm64/net/bpf_jit_comp.c90
-rw-r--r--arch/mips/Kconfig2
-rw-r--r--arch/powerpc/Kconfig2
-rw-r--r--arch/s390/Kconfig2
-rw-r--r--arch/s390/net/bpf_jit_comp.c77
-rw-r--r--arch/sparc/Kconfig2
-rw-r--r--arch/tile/configs/tilegx_defconfig3
-rw-r--r--arch/tile/configs/tilepro_defconfig3
-rw-r--r--arch/um/drivers/net_kern.c4
-rw-r--r--arch/x86/Kconfig2
-rw-r--r--arch/x86/net/bpf_jit_comp.c70
-rw-r--r--arch/xtensa/platforms/iss/network.c2
20 files changed, 208 insertions, 141 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 6684af91cb73..970f1cf94f7a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -41,7 +41,7 @@ config ARM
select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
select HAVE_ARCH_TRACEHOOK
select HAVE_ARM_SMCCC if CPU_V7
- select HAVE_BPF_JIT
+ select HAVE_CBPF_JIT
select HAVE_CC_STACKPROTECTOR
select HAVE_CONTEXT_TRACKING
select HAVE_C_RECORDMCOUNT
diff --git a/arch/arm/configs/multi_v5_defconfig b/arch/arm/configs/multi_v5_defconfig
index e11d99d529ee..690352d3ba4c 100644
--- a/arch/arm/configs/multi_v5_defconfig
+++ b/arch/arm/configs/multi_v5_defconfig
@@ -91,10 +91,7 @@ CONFIG_SATA_AHCI=y
CONFIG_SATA_MV=y
CONFIG_NETDEVICES=y
CONFIG_NET_DSA_MV88E6060=y
-CONFIG_NET_DSA_MV88E6131=y
-CONFIG_NET_DSA_MV88E6123=y
-CONFIG_NET_DSA_MV88E6171=y
-CONFIG_NET_DSA_MV88E6352=y
+CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_MV643XX_ETH=y
CONFIG_R8169=y
CONFIG_MARVELL_PHY=y
diff --git a/arch/arm/configs/mvebu_v7_defconfig b/arch/arm/configs/mvebu_v7_defconfig
index dc5797a2efab..6492407efd7e 100644
--- a/arch/arm/configs/mvebu_v7_defconfig
+++ b/arch/arm/configs/mvebu_v7_defconfig
@@ -66,7 +66,7 @@ CONFIG_SATA_AHCI=y
CONFIG_AHCI_MVEBU=y
CONFIG_SATA_MV=y
CONFIG_NETDEVICES=y
-CONFIG_NET_DSA_MV88E6171=y
+CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_MV643XX_ETH=y
CONFIG_MVNETA=y
CONFIG_MVPP2=y
diff --git a/arch/arm/configs/orion5x_defconfig b/arch/arm/configs/orion5x_defconfig
index 6a5bc27538f1..27a70a7a50f6 100644
--- a/arch/arm/configs/orion5x_defconfig
+++ b/arch/arm/configs/orion5x_defconfig
@@ -85,8 +85,7 @@ CONFIG_ATA=y
CONFIG_SATA_MV=y
CONFIG_NETDEVICES=y
CONFIG_MII=y
-CONFIG_NET_DSA_MV88E6131=y
-CONFIG_NET_DSA_MV88E6123=y
+CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_MV643XX_ETH=y
CONFIG_MARVELL_PHY=y
# CONFIG_INPUT_MOUSEDEV is not set
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 8845c0d100d7..76747d92bc72 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -61,7 +61,7 @@ config ARM64
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_ARM_SMCCC
- select HAVE_BPF_JIT
+ select HAVE_EBPF_JIT
select HAVE_C_RECORDMCOUNT
select HAVE_CC_STACKPROTECTOR
select HAVE_CMPXCHG_DOUBLE
diff --git a/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi b/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi
index a055a5d443b7..ba0487751524 100644
--- a/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi
@@ -653,6 +653,7 @@
<0 113 4>,
<0 114 4>,
<0 115 4>;
+ channel = <12>;
port-id = <1>;
dma-coherent;
clocks = <&xge1clk 0>;
diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index ae4a173df493..5147d7698924 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -993,6 +993,7 @@
<0x0 0x65 0x4>,
<0x0 0x66 0x4>,
<0x0 0x67 0x4>;
+ channel = <0>;
dma-coherent;
clocks = <&xge0clk 0>;
/* mac address will be overwritten by the bootloader */
diff --git a/arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi b/arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi
index 933cba359918..b6a130c2e5a4 100644
--- a/arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi
@@ -24,17 +24,19 @@ soc0: soc@000000000 {
};
dsaf0: dsa@c7000000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
compatible = "hisilicon,hns-dsaf-v1";
mode = "6port-16rss";
interrupt-parent = <&mbigen_dsa>;
- reg = <0x0 0xC0000000 0x0 0x420000
- 0x0 0xC2000000 0x0 0x300000
- 0x0 0xc5000000 0x0 0x890000
+ reg = <0x0 0xc5000000 0x0 0x890000
0x0 0xc7000000 0x0 0x60000
>;
- phy-handle = <0 0 0 0 &soc0_phy0 &soc0_phy1 0 0>;
+ reg-names = "ppe-base","dsaf-base";
+ subctrl-syscon = <&dsaf_subctrl>;
+ reset-field-offset = <0>;
interrupts = <
/* [14] ge fifo err 8 / xge 6**/
149 0x4 150 0x4 151 0x4 152 0x4
@@ -122,12 +124,31 @@ soc0: soc@000000000 {
buf-size = <4096>;
desc-num = <1024>;
dma-coherent;
+
+ port@0 {
+ reg = <0>;
+ serdes-syscon = <&serdes_ctrl0>;
+ };
+ port@1 {
+ reg = <1>;
+ serdes-syscon = <&serdes_ctrl0>;
+ };
+ port@4 {
+ reg = <4>;
+ phy-handle = <&soc0_phy0>;
+ serdes-syscon = <&serdes_ctrl1>;
+ };
+ port@5 {
+ reg = <5>;
+ phy-handle = <&soc0_phy1>;
+ serdes-syscon = <&serdes_ctrl1>;
+ };
};
eth0: ethernet@0{
compatible = "hisilicon,hns-nic-v1";
ae-handle = <&dsaf0>;
- port-id = <0>;
+ port-idx-in-ae = <0>;
local-mac-address = [00 00 00 01 00 58];
status = "disabled";
dma-coherent;
@@ -135,56 +156,25 @@ soc0: soc@000000000 {
eth1: ethernet@1{
compatible = "hisilicon,hns-nic-v1";
ae-handle = <&dsaf0>;
- port-id = <1>;
+ port-idx-in-ae = <1>;
+ local-mac-address = [00 00 00 01 00 59];
status = "disabled";
dma-coherent;
};
- eth2: ethernet@2{
+ eth2: ethernet@4{
compatible = "hisilicon,hns-nic-v1";
ae-handle = <&dsaf0>;
- port-id = <2>;
+ port-idx-in-ae = <4>;
local-mac-address = [00 00 00 01 00 5a];
status = "disabled";
dma-coherent;
};
- eth3: ethernet@3{
+ eth3: ethernet@5{
compatible = "hisilicon,hns-nic-v1";
ae-handle = <&dsaf0>;
- port-id = <3>;
+ port-idx-in-ae = <5>;
local-mac-address = [00 00 00 01 00 5b];
status = "disabled";
dma-coherent;
};
- eth4: ethernet@4{
- compatible = "hisilicon,hns-nic-v1";
- ae-handle = <&dsaf0>;
- port-id = <4>;
- local-mac-address = [00 00 00 01 00 5c];
- status = "disabled";
- dma-coherent;
- };
- eth5: ethernet@5{
- compatible = "hisilicon,hns-nic-v1";
- ae-handle = <&dsaf0>;
- port-id = <5>;
- local-mac-address = [00 00 00 01 00 5d];
- status = "disabled";
- dma-coherent;
- };
- eth6: ethernet@6{
- compatible = "hisilicon,hns-nic-v1";
- ae-handle = <&dsaf0>;
- port-id = <6>;
- local-mac-address = [00 00 00 01 00 5e];
- status = "disabled";
- dma-coherent;
- };
- eth7: ethernet@7{
- compatible = "hisilicon,hns-nic-v1";
- ae-handle = <&dsaf0>;
- port-id = <7>;
- local-mac-address = [00 00 00 01 00 5f];
- status = "disabled";
- dma-coherent;
- };
};
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index b405bbb54431..49ba37e4bfc0 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -31,8 +31,8 @@
int bpf_jit_enable __read_mostly;
-#define TMP_REG_1 (MAX_BPF_REG + 0)
-#define TMP_REG_2 (MAX_BPF_REG + 1)
+#define TMP_REG_1 (MAX_BPF_JIT_REG + 0)
+#define TMP_REG_2 (MAX_BPF_JIT_REG + 1)
/* Map BPF registers to A64 registers */
static const int bpf2a64[] = {
@@ -51,15 +51,16 @@ static const int bpf2a64[] = {
[BPF_REG_9] = A64_R(22),
/* read-only frame pointer to access stack */
[BPF_REG_FP] = A64_R(25),
- /* temporary register for internal BPF JIT */
- [TMP_REG_1] = A64_R(23),
- [TMP_REG_2] = A64_R(24),
+ /* temporary registers for internal BPF JIT */
+ [TMP_REG_1] = A64_R(10),
+ [TMP_REG_2] = A64_R(11),
+ /* temporary register for blinding constants */
+ [BPF_REG_AX] = A64_R(9),
};
struct jit_ctx {
const struct bpf_prog *prog;
int idx;
- int tmp_used;
int epilogue_offset;
int *offset;
u32 *image;
@@ -152,8 +153,6 @@ static void build_prologue(struct jit_ctx *ctx)
const u8 r8 = bpf2a64[BPF_REG_8];
const u8 r9 = bpf2a64[BPF_REG_9];
const u8 fp = bpf2a64[BPF_REG_FP];
- const u8 tmp1 = bpf2a64[TMP_REG_1];
- const u8 tmp2 = bpf2a64[TMP_REG_2];
/*
* BPF prog stack layout
@@ -165,7 +164,7 @@ static void build_prologue(struct jit_ctx *ctx)
* | ... | callee saved registers
* +-----+
* | | x25/x26
- * BPF fp register => -80:+-----+ <= (BPF_FP)
+ * BPF fp register => -64:+-----+ <= (BPF_FP)
* | |
* | ... | BPF prog stack
* | |
@@ -187,8 +186,6 @@ static void build_prologue(struct jit_ctx *ctx)
/* Save callee-saved register */
emit(A64_PUSH(r6, r7, A64_SP), ctx);
emit(A64_PUSH(r8, r9, A64_SP), ctx);
- if (ctx->tmp_used)
- emit(A64_PUSH(tmp1, tmp2, A64_SP), ctx);
/* Save fp (x25) and x26. SP requires 16 bytes alignment */
emit(A64_PUSH(fp, A64_R(26), A64_SP), ctx);
@@ -208,8 +205,6 @@ static void build_epilogue(struct jit_ctx *ctx)
const u8 r8 = bpf2a64[BPF_REG_8];
const u8 r9 = bpf2a64[BPF_REG_9];
const u8 fp = bpf2a64[BPF_REG_FP];
- const u8 tmp1 = bpf2a64[TMP_REG_1];
- const u8 tmp2 = bpf2a64[TMP_REG_2];
/* We're done with BPF stack */
emit(A64_ADD_I(1, A64_SP, A64_SP, STACK_SIZE), ctx);
@@ -218,8 +213,6 @@ static void build_epilogue(struct jit_ctx *ctx)
emit(A64_POP(fp, A64_R(26), A64_SP), ctx);
/* Restore callee-saved register */
- if (ctx->tmp_used)
- emit(A64_POP(tmp1, tmp2, A64_SP), ctx);
emit(A64_POP(r8, r9, A64_SP), ctx);
emit(A64_POP(r6, r7, A64_SP), ctx);
@@ -315,7 +308,6 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
emit(A64_UDIV(is64, dst, dst, src), ctx);
break;
case BPF_MOD:
- ctx->tmp_used = 1;
emit(A64_UDIV(is64, tmp, dst, src), ctx);
emit(A64_MUL(is64, tmp, tmp, src), ctx);
emit(A64_SUB(is64, dst, dst, tmp), ctx);
@@ -388,49 +380,41 @@ emit_bswap_uxt:
/* dst = dst OP imm */
case BPF_ALU | BPF_ADD | BPF_K:
case BPF_ALU64 | BPF_ADD | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(is64, tmp, imm, ctx);
emit(A64_ADD(is64, dst, dst, tmp), ctx);
break;
case BPF_ALU | BPF_SUB | BPF_K:
case BPF_ALU64 | BPF_SUB | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(is64, tmp, imm, ctx);
emit(A64_SUB(is64, dst, dst, tmp), ctx);
break;
case BPF_ALU | BPF_AND | BPF_K:
case BPF_ALU64 | BPF_AND | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(is64, tmp, imm, ctx);
emit(A64_AND(is64, dst, dst, tmp), ctx);
break;
case BPF_ALU | BPF_OR | BPF_K:
case BPF_ALU64 | BPF_OR | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(is64, tmp, imm, ctx);
emit(A64_ORR(is64, dst, dst, tmp), ctx);
break;
case BPF_ALU | BPF_XOR | BPF_K:
case BPF_ALU64 | BPF_XOR | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(is64, tmp, imm, ctx);
emit(A64_EOR(is64, dst, dst, tmp), ctx);
break;
case BPF_ALU | BPF_MUL | BPF_K:
case BPF_ALU64 | BPF_MUL | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(is64, tmp, imm, ctx);
emit(A64_MUL(is64, dst, dst, tmp), ctx);
break;
case BPF_ALU | BPF_DIV | BPF_K:
case BPF_ALU64 | BPF_DIV | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(is64, tmp, imm, ctx);
emit(A64_UDIV(is64, dst, dst, tmp), ctx);
break;
case BPF_ALU | BPF_MOD | BPF_K:
case BPF_ALU64 | BPF_MOD | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(is64, tmp2, imm, ctx);
emit(A64_UDIV(is64, tmp, dst, tmp2), ctx);
emit(A64_MUL(is64, tmp, tmp, tmp2), ctx);
@@ -501,12 +485,10 @@ emit_cond_jmp:
case BPF_JMP | BPF_JNE | BPF_K:
case BPF_JMP | BPF_JSGT | BPF_K:
case BPF_JMP | BPF_JSGE | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(1, tmp, imm, ctx);
emit(A64_CMP(1, dst, tmp), ctx);
goto emit_cond_jmp;
case BPF_JMP | BPF_JSET | BPF_K:
- ctx->tmp_used = 1;
emit_a64_mov_i(1, tmp, imm, ctx);
emit(A64_TST(1, dst, tmp), ctx);
goto emit_cond_jmp;
@@ -516,7 +498,6 @@ emit_cond_jmp:
const u8 r0 = bpf2a64[BPF_REG_0];
const u64 func = (u64)__bpf_call_base + imm;
- ctx->tmp_used = 1;
emit_a64_mov_i64(tmp, func, ctx);
emit(A64_PUSH(A64_FP, A64_LR, A64_SP), ctx);
emit(A64_MOV(1, A64_FP, A64_SP), ctx);
@@ -562,7 +543,6 @@ emit_cond_jmp:
case BPF_LDX | BPF_MEM | BPF_H:
case BPF_LDX | BPF_MEM | BPF_B:
case BPF_LDX | BPF_MEM | BPF_DW:
- ctx->tmp_used = 1;
emit_a64_mov_i(1, tmp, off, ctx);
switch (BPF_SIZE(code)) {
case BPF_W:
@@ -586,7 +566,6 @@ emit_cond_jmp:
case BPF_ST | BPF_MEM | BPF_B:
case BPF_ST | BPF_MEM | BPF_DW:
/* Load imm to a register then store it */
- ctx->tmp_used = 1;
emit_a64_mov_i(1, tmp2, off, ctx);
emit_a64_mov_i(1, tmp, imm, ctx);
switch (BPF_SIZE(code)) {
@@ -610,7 +589,6 @@ emit_cond_jmp:
case BPF_STX | BPF_MEM | BPF_H:
case BPF_STX | BPF_MEM | BPF_B:
case BPF_STX | BPF_MEM | BPF_DW:
- ctx->tmp_used = 1;
emit_a64_mov_i(1, tmp, off, ctx);
switch (BPF_SIZE(code)) {
case BPF_W:
@@ -762,31 +740,45 @@ void bpf_jit_compile(struct bpf_prog *prog)
/* Nothing to do here. We support Internal BPF. */
}
-void bpf_int_jit_compile(struct bpf_prog *prog)
+struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
{
+ struct bpf_prog *tmp, *orig_prog = prog;
struct bpf_binary_header *header;
+ bool tmp_blinded = false;
struct jit_ctx ctx;
int image_size;
u8 *image_ptr;
if (!bpf_jit_enable)
- return;
+ return orig_prog;
- if (!prog || !prog->len)
- return;
+ tmp = bpf_jit_blind_constants(prog);
+ /* If blinding was requested and we failed during blinding,
+ * we must fall back to the interpreter.
+ */
+ if (IS_ERR(tmp))
+ return orig_prog;
+ if (tmp != prog) {
+ tmp_blinded = true;
+ prog = tmp;
+ }
memset(&ctx, 0, sizeof(ctx));
ctx.prog = prog;
ctx.offset = kcalloc(prog->len, sizeof(int), GFP_KERNEL);
- if (ctx.offset == NULL)
- return;
+ if (ctx.offset == NULL) {
+ prog = orig_prog;
+ goto out;
+ }
/* 1. Initial fake pass to compute ctx->idx. */
- /* Fake pass to fill in ctx->offset and ctx->tmp_used. */
- if (build_body(&ctx))
- goto out;
+ /* Fake pass to fill in ctx->offset. */
+ if (build_body(&ctx)) {
+ prog = orig_prog;
+ goto out_off;
+ }
build_prologue(&ctx);
@@ -797,8 +789,10 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
image_size = sizeof(u32) * ctx.idx;
header = bpf_jit_binary_alloc(image_size, &image_ptr,
sizeof(u32), jit_fill_hole);
- if (header == NULL)
- goto out;
+ if (header == NULL) {
+ prog = orig_prog;
+ goto out_off;
+ }
/* 2. Now, the actual pass. */
@@ -809,7 +803,8 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
if (build_body(&ctx)) {
bpf_jit_binary_free(header);
- goto out;
+ prog = orig_prog;
+ goto out_off;
}
build_epilogue(&ctx);
@@ -817,7 +812,8 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
/* 3. Extra pass to validate JITed code. */
if (validate_code(&ctx)) {
bpf_jit_binary_free(header);
- goto out;
+ prog = orig_prog;
+ goto out_off;
}
/* And we're done. */
@@ -829,8 +825,14 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
set_memory_ro((unsigned long)header, header->pages);
prog->bpf_func = (void *)ctx.image;
prog->jited = 1;
-out:
+
+out_off:
kfree(ctx.offset);
+out:
+ if (tmp_blinded)
+ bpf_jit_prog_release_other(prog, prog == orig_prog ?
+ tmp : orig_prog);
+ return prog;
}
void bpf_jit_free(struct bpf_prog *prog)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2018c2b0e078..3ee1ea61b2dc 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -15,7 +15,7 @@ config MIPS
select HAVE_ARCH_KGDB
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
- select HAVE_BPF_JIT if !CPU_MICROMIPS
+ select HAVE_CBPF_JIT if !CPU_MICROMIPS
select HAVE_FUNCTION_TRACER
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 7cd32c038286..2fdb73d9198a 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -126,7 +126,7 @@ config PPC
select IRQ_FORCED_THREADING
select HAVE_RCU_TABLE_FREE if SMP
select HAVE_SYSCALL_TRACEPOINTS
- select HAVE_BPF_JIT
+ select HAVE_CBPF_JIT
select HAVE_ARCH_JUMP_LABEL
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_HAS_GCOV_PROFILE_ALL
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index bf24ab188921..a883981c0174 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -126,7 +126,7 @@ config S390
select HAVE_ARCH_SOFT_DIRTY
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
- select HAVE_BPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
+ select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
select HAVE_CMPXCHG_DOUBLE
select HAVE_CMPXCHG_LOCAL
select HAVE_DEBUG_KMEMLEAK
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 3c0bfc1f2694..9133b0ec000b 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -54,16 +54,17 @@ struct bpf_jit {
#define SEEN_FUNC 16 /* calls C functions */
#define SEEN_TAIL_CALL 32 /* code uses tail calls */
#define SEEN_SKB_CHANGE 64 /* code changes skb data */
+#define SEEN_REG_AX 128 /* code uses constant blinding */
#define SEEN_STACK (SEEN_FUNC | SEEN_MEM | SEEN_SKB)
/*
* s390 registers
*/
-#define REG_W0 (__MAX_BPF_REG+0) /* Work register 1 (even) */
-#define REG_W1 (__MAX_BPF_REG+1) /* Work register 2 (odd) */
-#define REG_SKB_DATA (__MAX_BPF_REG+2) /* SKB data register */
-#define REG_L (__MAX_BPF_REG+3) /* Literal pool register */
-#define REG_15 (__MAX_BPF_REG+4) /* Register 15 */
+#define REG_W0 (MAX_BPF_JIT_REG + 0) /* Work register 1 (even) */
+#define REG_W1 (MAX_BPF_JIT_REG + 1) /* Work register 2 (odd) */
+#define REG_SKB_DATA (MAX_BPF_JIT_REG + 2) /* SKB data register */
+#define REG_L (MAX_BPF_JIT_REG + 3) /* Literal pool register */
+#define REG_15 (MAX_BPF_JIT_REG + 4) /* Register 15 */
#define REG_0 REG_W0 /* Register 0 */
#define REG_1 REG_W1 /* Register 1 */
#define REG_2 BPF_REG_1 /* Register 2 */
@@ -88,6 +89,8 @@ static const int reg2hex[] = {
[BPF_REG_9] = 10,
/* BPF stack pointer */
[BPF_REG_FP] = 13,
+ /* Register for blinding (shared with REG_SKB_DATA) */
+ [BPF_REG_AX] = 12,
/* SKB data pointer */
[REG_SKB_DATA] = 12,
/* Work registers for s390x backend */
@@ -385,7 +388,7 @@ static void save_restore_regs(struct bpf_jit *jit, int op)
/*
* For SKB access %b1 contains the SKB pointer. For "bpf_jit.S"
* we store the SKB header length on the stack and the SKB data
- * pointer in REG_SKB_DATA.
+ * pointer in REG_SKB_DATA if BPF_REG_AX is not used.
*/
static void emit_load_skb_data_hlen(struct bpf_jit *jit)
{
@@ -397,9 +400,10 @@ static void emit_load_skb_data_hlen(struct bpf_jit *jit)
offsetof(struct sk_buff, data_len));
/* stg %w1,ST_OFF_HLEN(%r0,%r15) */
EMIT6_DISP_LH(0xe3000000, 0x0024, REG_W1, REG_0, REG_15, STK_OFF_HLEN);
- /* lg %skb_data,data_off(%b1) */
- EMIT6_DISP_LH(0xe3000000, 0x0004, REG_SKB_DATA, REG_0,
- BPF_REG_1, offsetof(struct sk_buff, data));
+ if (!(jit->seen & SEEN_REG_AX))
+ /* lg %skb_data,data_off(%b1) */
+ EMIT6_DISP_LH(0xe3000000, 0x0004, REG_SKB_DATA, REG_0,
+ BPF_REG_1, offsetof(struct sk_buff, data));
}
/*
@@ -487,6 +491,8 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
s32 imm = insn->imm;
s16 off = insn->off;
+ if (dst_reg == BPF_REG_AX || src_reg == BPF_REG_AX)
+ jit->seen |= SEEN_REG_AX;
switch (insn->code) {
/*
* BPF_MOV
@@ -1188,7 +1194,7 @@ call_fn:
/*
* Implicit input:
* BPF_REG_6 (R7) : skb pointer
- * REG_SKB_DATA (R12): skb data pointer
+ * REG_SKB_DATA (R12): skb data pointer (if no BPF_REG_AX)
*
* Calculated input:
* BPF_REG_2 (R3) : offset of byte(s) to fetch in skb
@@ -1209,6 +1215,11 @@ call_fn:
/* agfr %b2,%src (%src is s32 here) */
EMIT4(0xb9180000, BPF_REG_2, src_reg);
+ /* Reload REG_SKB_DATA if BPF_REG_AX is used */
+ if (jit->seen & SEEN_REG_AX)
+ /* lg %skb_data,data_off(%b6) */
+ EMIT6_DISP_LH(0xe3000000, 0x0004, REG_SKB_DATA, REG_0,
+ BPF_REG_6, offsetof(struct sk_buff, data));
/* basr %b5,%w1 (%b5 is call saved) */
EMIT2(0x0d00, BPF_REG_5, REG_W1);
@@ -1262,37 +1273,62 @@ void bpf_jit_compile(struct bpf_prog *fp)
/*
* Compile eBPF program "fp"
*/
-void bpf_int_jit_compile(struct bpf_prog *fp)
+struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
{
+ struct bpf_prog *tmp, *orig_fp = fp;
struct bpf_binary_header *header;
+ bool tmp_blinded = false;
struct bpf_jit jit;
int pass;
if (!bpf_jit_enable)
- return;
+ return orig_fp;
+
+ tmp = bpf_jit_blind_constants(fp);
+ /*
+ * If blinding was requested and we failed during blinding,
+ * we must fall back to the interpreter.
+ */
+ if (IS_ERR(tmp))
+ return orig_fp;
+ if (tmp != fp) {
+ tmp_blinded = true;
+ fp = tmp;
+ }
+
memset(&jit, 0, sizeof(jit));
jit.addrs = kcalloc(fp->len + 1, sizeof(*jit.addrs), GFP_KERNEL);
- if (jit.addrs == NULL)
- return;
+ if (jit.addrs == NULL) {
+ fp = orig_fp;
+ goto out;
+ }
/*
* Three initial passes:
* - 1/2: Determine clobbered registers
* - 3: Calculate program size and addrs arrray
*/
for (pass = 1; pass <= 3; pass++) {
- if (bpf_jit_prog(&jit, fp))
+ if (bpf_jit_prog(&jit, fp)) {
+ fp = orig_fp;
goto free_addrs;
+ }
}
/*
* Final pass: Allocate and generate program
*/
- if (jit.size >= BPF_SIZE_MAX)
+ if (jit.size >= BPF_SIZE_MAX) {
+ fp = orig_fp;
goto free_addrs;
+ }
header = bpf_jit_binary_alloc(jit.size, &jit.prg_buf, 2, jit_fill_hole);
- if (!header)
+ if (!header) {
+ fp = orig_fp;
goto free_addrs;
- if (bpf_jit_prog(&jit, fp))
+ }
+ if (bpf_jit_prog(&jit, fp)) {
+ fp = orig_fp;
goto free_addrs;
+ }
if (bpf_jit_enable > 1) {
bpf_jit_dump(fp->len, jit.size, pass, jit.prg_buf);
if (jit.prg_buf)
@@ -1305,6 +1341,11 @@ void bpf_int_jit_compile(struct bpf_prog *fp)
}
free_addrs:
kfree(jit.addrs);
+out:
+ if (tmp_blinded)
+ bpf_jit_prog_release_other(fp, fp == orig_fp ?
+ tmp : orig_fp);
+ return fp;
}
/*
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 57ffaf285c2f..d5003812c748 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -32,7 +32,7 @@ config SPARC
select ARCH_WANT_IPC_PARSE_VERSION
select GENERIC_PCI_IOMAP
select HAVE_NMI_WATCHDOG if SPARC64
- select HAVE_BPF_JIT
+ select HAVE_CBPF_JIT
select HAVE_DEBUG_BUGVERBOSE
select GENERIC_SMP_IDLE_THREAD
select GENERIC_CLOCKEVENTS
diff --git a/arch/tile/configs/tilegx_defconfig b/arch/tile/configs/tilegx_defconfig
index 3f3dfb8b150a..718905557f7e 100644
--- a/arch/tile/configs/tilegx_defconfig
+++ b/arch/tile/configs/tilegx_defconfig
@@ -221,8 +221,7 @@ CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_TUN=y
CONFIG_VETH=m
CONFIG_NET_DSA_MV88E6060=y
-CONFIG_NET_DSA_MV88E6131=y
-CONFIG_NET_DSA_MV88E6123=y
+CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_SKY2=y
CONFIG_PTP_1588_CLOCK_TILEGX=y
# CONFIG_WLAN is not set
diff --git a/arch/tile/configs/tilepro_defconfig b/arch/tile/configs/tilepro_defconfig
index ef9e27eb2f50..dc85468afd5e 100644
--- a/arch/tile/configs/tilepro_defconfig
+++ b/arch/tile/configs/tilepro_defconfig
@@ -340,8 +340,7 @@ CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_TUN=y
CONFIG_VETH=m
CONFIG_NET_DSA_MV88E6060=y
-CONFIG_NET_DSA_MV88E6131=y
-CONFIG_NET_DSA_MV88E6123=y
+CONFIG_NET_DSA_MV88E6XXX=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_E1000E=y
# CONFIG_WLAN is not set
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 9ef669d24bb2..2cd5b6874c7b 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -223,7 +223,7 @@ static int uml_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (len == skb->len) {
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
- dev->trans_start = jiffies;
+ netif_trans_update(dev);
netif_start_queue(dev);
/* this is normally done in the interrupt when tx finishes */
@@ -252,7 +252,7 @@ static void uml_net_set_multicast_list(struct net_device *dev)
static void uml_net_tx_timeout(struct net_device *dev)
{
- dev->trans_start = jiffies;
+ netif_trans_update(dev);
netif_wake_queue(dev);
}
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 7bb15747fea2..ace79d2da2c3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -91,7 +91,7 @@ config X86
select HAVE_ARCH_SOFT_DIRTY if X86_64
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
- select HAVE_BPF_JIT if X86_64
+ select HAVE_EBPF_JIT if X86_64
select HAVE_CC_STACKPROTECTOR
select HAVE_CMPXCHG_DOUBLE
select HAVE_CMPXCHG_LOCAL
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 4286f3618bd0..fe04a04dab8e 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -110,11 +110,16 @@ static void bpf_flush_icache(void *start, void *end)
((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset)
/* pick a register outside of BPF range for JIT internal work */
-#define AUX_REG (MAX_BPF_REG + 1)
+#define AUX_REG (MAX_BPF_JIT_REG + 1)
-/* the following table maps BPF registers to x64 registers.
- * x64 register r12 is unused, since if used as base address register
- * in load/store instructions, it always needs an extra byte of encoding
+/* The following table maps BPF registers to x64 registers.
+ *
+ * x64 register r12 is unused, since if used as base address
+ * register in load/store instructions, it always needs an
+ * extra byte of encoding and is callee saved.
+ *
+ * r9 caches skb->len - skb->data_len
+ * r10 caches skb->data, and used for blinding (if enabled)
*/
static const int reg2hex[] = {
[BPF_REG_0] = 0, /* rax */
@@ -128,6 +133,7 @@ static const int reg2hex[] = {
[BPF_REG_8] = 6, /* r14 callee saved */
[BPF_REG_9] = 7, /* r15 callee saved */
[BPF_REG_FP] = 5, /* rbp readonly */
+ [BPF_REG_AX] = 2, /* r10 temp register */
[AUX_REG] = 3, /* r11 temp register */
};
@@ -141,7 +147,8 @@ static bool is_ereg(u32 reg)
BIT(AUX_REG) |
BIT(BPF_REG_7) |
BIT(BPF_REG_8) |
- BIT(BPF_REG_9));
+ BIT(BPF_REG_9) |
+ BIT(BPF_REG_AX));
}
/* add modifiers if 'reg' maps to x64 registers r8..r15 */
@@ -182,6 +189,7 @@ static void jit_fill_hole(void *area, unsigned int size)
struct jit_context {
int cleanup_addr; /* epilogue code offset */
bool seen_ld_abs;
+ bool seen_ax_reg;
};
/* maximum number of bytes emitted while JITing one eBPF insn */
@@ -345,6 +353,7 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
struct bpf_insn *insn = bpf_prog->insnsi;
int insn_cnt = bpf_prog->len;
bool seen_ld_abs = ctx->seen_ld_abs | (oldproglen == 0);
+ bool seen_ax_reg = ctx->seen_ax_reg | (oldproglen == 0);
bool seen_exit = false;
u8 temp[BPF_MAX_INSN_SIZE + BPF_INSN_SAFETY];
int i, cnt = 0;
@@ -367,6 +376,9 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
int ilen;
u8 *func;
+ if (dst_reg == BPF_REG_AX || src_reg == BPF_REG_AX)
+ ctx->seen_ax_reg = seen_ax_reg = true;
+
switch (insn->code) {
/* ALU */
case BPF_ALU | BPF_ADD | BPF_X:
@@ -1002,6 +1014,10 @@ common_load:
* sk_load_* helpers also use %r10 and %r9d.
* See bpf_jit.S
*/
+ if (seen_ax_reg)
+ /* r10 = skb->data, mov %r10, off32(%rbx) */
+ EMIT3_off32(0x4c, 0x8b, 0x93,
+ offsetof(struct sk_buff, data));
EMIT1_off32(0xE8, jmp_offset); /* call */
break;
@@ -1073,25 +1089,37 @@ void bpf_jit_compile(struct bpf_prog *prog)
{
}
-void bpf_int_jit_compile(struct bpf_prog *prog)
+struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
{
struct bpf_binary_header *header = NULL;
+ struct bpf_prog *tmp, *orig_prog = prog;
int proglen, oldproglen = 0;
struct jit_context ctx = {};
+ bool tmp_blinded = false;
u8 *image = NULL;
int *addrs;
int pass;
int i;
if (!bpf_jit_enable)
- return;
+ return orig_prog;
- if (!prog || !prog->len)
- return;
+ tmp = bpf_jit_blind_constants(prog);
+ /* If blinding was requested and we failed during blinding,
+ * we must fall back to the interpreter.
+ */
+ if (IS_ERR(tmp))
+ return orig_prog;
+ if (tmp != prog) {
+ tmp_blinded = true;
+ prog = tmp;
+ }
addrs = kmalloc(prog->len * sizeof(*addrs), GFP_KERNEL);
- if (!addrs)
- return;
+ if (!addrs) {
+ prog = orig_prog;
+ goto out;
+ }
/* Before first pass, make a rough estimation of addrs[]
* each bpf instruction is translated to less than 64 bytes
@@ -1113,21 +1141,25 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
image = NULL;
if (header)
bpf_jit_binary_free(header);
- goto out;
+ prog = orig_prog;
+ goto out_addrs;
}
if (image) {
if (proglen != oldproglen) {
pr_err("bpf_jit: proglen=%d != oldproglen=%d\n",
proglen, oldproglen);
- goto out;
+ prog = orig_prog;
+ goto out_addrs;
}
break;
}
if (proglen == oldproglen) {
header = bpf_jit_binary_alloc(proglen, &image,
1, jit_fill_hole);
- if (!header)
- goto out;
+ if (!header) {
+ prog = orig_prog;
+ goto out_addrs;
+ }
}
oldproglen = proglen;
}
@@ -1141,8 +1173,14 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
prog->bpf_func = (void *)image;
prog->jited = 1;
}
-out:
+
+out_addrs:
kfree(addrs);
+out:
+ if (tmp_blinded)
+ bpf_jit_prog_release_other(prog, prog == orig_prog ?
+ tmp : orig_prog);
+ return prog;
}
void bpf_jit_free(struct bpf_prog *fp)
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index 976a38594537..66a5d15a9e0e 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -428,7 +428,7 @@ static int iss_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (len == skb->len) {
lp->stats.tx_packets++;
lp->stats.tx_bytes += skb->len;
- dev->trans_start = jiffies;
+ netif_trans_update(dev);
netif_start_queue(dev);
/* this is normally done in the interrupt when tx finishes */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 14:00:13 +0000