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[PULL 03/15] bsd-user:Add ARM AArch64 support and capabilities
From: |
Warner Losh |
Subject: |
[PULL 03/15] bsd-user:Add ARM AArch64 support and capabilities |
Date: |
Wed, 24 Jul 2024 16:04:36 -0600 |
Added function to access rval2 by accessing the x1 register.
Defined ARM AArch64 ELF parameters including mmap and dynamic load addresses.
Introduced extensive hardware capability definitions and macros for retrieving
hardware capability (hwcap) flags.
Implemented function to retrieve ARM AArch64 hardware capabilities using the
`GET_FEATURE_ID` macro.
Added function to retrieve extended ARM AArch64 hardware capability flags.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Co-authored-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240707191128.10509-4-itachis@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
---
bsd-user/aarch64/target_arch.h | 1 +
bsd-user/aarch64/target_arch_elf.h | 163 +++++++++++++++++++++++++
bsd-user/aarch64/target_arch_vmparam.h | 6 +
3 files changed, 170 insertions(+)
create mode 100644 bsd-user/aarch64/target_arch_elf.h
diff --git a/bsd-user/aarch64/target_arch.h b/bsd-user/aarch64/target_arch.h
index 27f47de8eb3..4815a56ae3c 100644
--- a/bsd-user/aarch64/target_arch.h
+++ b/bsd-user/aarch64/target_arch.h
@@ -21,6 +21,7 @@
#define TARGET_ARCH_H
#include "qemu.h"
+#include "target/arm/cpu-features.h"
void target_cpu_set_tls(CPUARMState *env, target_ulong newtls);
target_ulong target_cpu_get_tls(CPUARMState *env);
diff --git a/bsd-user/aarch64/target_arch_elf.h
b/bsd-user/aarch64/target_arch_elf.h
new file mode 100644
index 00000000000..cc87f475b3f
--- /dev/null
+++ b/bsd-user/aarch64/target_arch_elf.h
@@ -0,0 +1,163 @@
+/*
+ * ARM AArch64 ELF definitions for bsd-user
+ *
+ * Copyright (c) 2015 Stacey D. Son
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef TARGET_ARCH_ELF_H
+#define TARGET_ARCH_ELF_H
+
+#define ELF_START_MMAP 0x80000000
+#define ELF_ET_DYN_LOAD_ADDR 0x100000
+
+#define elf_check_arch(x) ((x) == EM_AARCH64)
+
+#define ELF_CLASS ELFCLASS64
+#define ELF_DATA ELFDATA2LSB
+#define ELF_ARCH EM_AARCH64
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE 4096
+
+enum {
+ ARM_HWCAP_A64_FP = 1 << 0,
+ ARM_HWCAP_A64_ASIMD = 1 << 1,
+ ARM_HWCAP_A64_EVTSTRM = 1 << 2,
+ ARM_HWCAP_A64_AES = 1 << 3,
+ ARM_HWCAP_A64_PMULL = 1 << 4,
+ ARM_HWCAP_A64_SHA1 = 1 << 5,
+ ARM_HWCAP_A64_SHA2 = 1 << 6,
+ ARM_HWCAP_A64_CRC32 = 1 << 7,
+ ARM_HWCAP_A64_ATOMICS = 1 << 8,
+ ARM_HWCAP_A64_FPHP = 1 << 9,
+ ARM_HWCAP_A64_ASIMDHP = 1 << 10,
+ ARM_HWCAP_A64_CPUID = 1 << 11,
+ ARM_HWCAP_A64_ASIMDRDM = 1 << 12,
+ ARM_HWCAP_A64_JSCVT = 1 << 13,
+ ARM_HWCAP_A64_FCMA = 1 << 14,
+ ARM_HWCAP_A64_LRCPC = 1 << 15,
+ ARM_HWCAP_A64_DCPOP = 1 << 16,
+ ARM_HWCAP_A64_SHA3 = 1 << 17,
+ ARM_HWCAP_A64_SM3 = 1 << 18,
+ ARM_HWCAP_A64_SM4 = 1 << 19,
+ ARM_HWCAP_A64_ASIMDDP = 1 << 20,
+ ARM_HWCAP_A64_SHA512 = 1 << 21,
+ ARM_HWCAP_A64_SVE = 1 << 22,
+ ARM_HWCAP_A64_ASIMDFHM = 1 << 23,
+ ARM_HWCAP_A64_DIT = 1 << 24,
+ ARM_HWCAP_A64_USCAT = 1 << 25,
+ ARM_HWCAP_A64_ILRCPC = 1 << 26,
+ ARM_HWCAP_A64_FLAGM = 1 << 27,
+ ARM_HWCAP_A64_SSBS = 1 << 28,
+ ARM_HWCAP_A64_SB = 1 << 29,
+ ARM_HWCAP_A64_PACA = 1 << 30,
+ ARM_HWCAP_A64_PACG = 1UL << 31,
+
+ ARM_HWCAP2_A64_DCPODP = 1 << 0,
+ ARM_HWCAP2_A64_SVE2 = 1 << 1,
+ ARM_HWCAP2_A64_SVEAES = 1 << 2,
+ ARM_HWCAP2_A64_SVEPMULL = 1 << 3,
+ ARM_HWCAP2_A64_SVEBITPERM = 1 << 4,
+ ARM_HWCAP2_A64_SVESHA3 = 1 << 5,
+ ARM_HWCAP2_A64_SVESM4 = 1 << 6,
+ ARM_HWCAP2_A64_FLAGM2 = 1 << 7,
+ ARM_HWCAP2_A64_FRINT = 1 << 8,
+ ARM_HWCAP2_A64_SVEI8MM = 1 << 9,
+ ARM_HWCAP2_A64_SVEF32MM = 1 << 10,
+ ARM_HWCAP2_A64_SVEF64MM = 1 << 11,
+ ARM_HWCAP2_A64_SVEBF16 = 1 << 12,
+ ARM_HWCAP2_A64_I8MM = 1 << 13,
+ ARM_HWCAP2_A64_BF16 = 1 << 14,
+ ARM_HWCAP2_A64_DGH = 1 << 15,
+ ARM_HWCAP2_A64_RNG = 1 << 16,
+ ARM_HWCAP2_A64_BTI = 1 << 17,
+ ARM_HWCAP2_A64_MTE = 1 << 18,
+};
+
+#define ELF_HWCAP get_elf_hwcap()
+#define ELF_HWCAP2 get_elf_hwcap2()
+
+#define GET_FEATURE_ID(feat, hwcap) \
+ do { if (cpu_isar_feature(feat, cpu)) { hwcaps |= hwcap; } } while (0)
+
+static uint32_t get_elf_hwcap(void)
+{
+ ARMCPU *cpu = ARM_CPU(thread_cpu);
+ uint32_t hwcaps = 0;
+
+ hwcaps |= ARM_HWCAP_A64_FP;
+ hwcaps |= ARM_HWCAP_A64_ASIMD;
+ hwcaps |= ARM_HWCAP_A64_CPUID;
+
+ /* probe for the extra features */
+
+ GET_FEATURE_ID(aa64_aes, ARM_HWCAP_A64_AES);
+ GET_FEATURE_ID(aa64_pmull, ARM_HWCAP_A64_PMULL);
+ GET_FEATURE_ID(aa64_sha1, ARM_HWCAP_A64_SHA1);
+ GET_FEATURE_ID(aa64_sha256, ARM_HWCAP_A64_SHA2);
+ GET_FEATURE_ID(aa64_sha512, ARM_HWCAP_A64_SHA512);
+ GET_FEATURE_ID(aa64_crc32, ARM_HWCAP_A64_CRC32);
+ GET_FEATURE_ID(aa64_sha3, ARM_HWCAP_A64_SHA3);
+ GET_FEATURE_ID(aa64_sm3, ARM_HWCAP_A64_SM3);
+ GET_FEATURE_ID(aa64_sm4, ARM_HWCAP_A64_SM4);
+ GET_FEATURE_ID(aa64_fp16, ARM_HWCAP_A64_FPHP | ARM_HWCAP_A64_ASIMDHP);
+ GET_FEATURE_ID(aa64_atomics, ARM_HWCAP_A64_ATOMICS);
+ GET_FEATURE_ID(aa64_rdm, ARM_HWCAP_A64_ASIMDRDM);
+ GET_FEATURE_ID(aa64_dp, ARM_HWCAP_A64_ASIMDDP);
+ GET_FEATURE_ID(aa64_fcma, ARM_HWCAP_A64_FCMA);
+ GET_FEATURE_ID(aa64_sve, ARM_HWCAP_A64_SVE);
+ GET_FEATURE_ID(aa64_pauth, ARM_HWCAP_A64_PACA | ARM_HWCAP_A64_PACG);
+ GET_FEATURE_ID(aa64_fhm, ARM_HWCAP_A64_ASIMDFHM);
+ GET_FEATURE_ID(aa64_jscvt, ARM_HWCAP_A64_JSCVT);
+ GET_FEATURE_ID(aa64_sb, ARM_HWCAP_A64_SB);
+ GET_FEATURE_ID(aa64_condm_4, ARM_HWCAP_A64_FLAGM);
+ GET_FEATURE_ID(aa64_dcpop, ARM_HWCAP_A64_DCPOP);
+ GET_FEATURE_ID(aa64_rcpc_8_3, ARM_HWCAP_A64_LRCPC);
+ GET_FEATURE_ID(aa64_rcpc_8_4, ARM_HWCAP_A64_ILRCPC);
+
+ return hwcaps;
+}
+
+static uint32_t get_elf_hwcap2(void)
+{
+ ARMCPU *cpu = ARM_CPU(thread_cpu);
+ uint32_t hwcaps = 0;
+
+ GET_FEATURE_ID(aa64_dcpodp, ARM_HWCAP2_A64_DCPODP);
+ GET_FEATURE_ID(aa64_sve2, ARM_HWCAP2_A64_SVE2);
+ GET_FEATURE_ID(aa64_sve2_aes, ARM_HWCAP2_A64_SVEAES);
+ GET_FEATURE_ID(aa64_sve2_pmull128, ARM_HWCAP2_A64_SVEPMULL);
+ GET_FEATURE_ID(aa64_sve2_bitperm, ARM_HWCAP2_A64_SVEBITPERM);
+ GET_FEATURE_ID(aa64_sve2_sha3, ARM_HWCAP2_A64_SVESHA3);
+ GET_FEATURE_ID(aa64_sve2_sm4, ARM_HWCAP2_A64_SVESM4);
+ GET_FEATURE_ID(aa64_condm_5, ARM_HWCAP2_A64_FLAGM2);
+ GET_FEATURE_ID(aa64_frint, ARM_HWCAP2_A64_FRINT);
+ GET_FEATURE_ID(aa64_sve_i8mm, ARM_HWCAP2_A64_SVEI8MM);
+ GET_FEATURE_ID(aa64_sve_f32mm, ARM_HWCAP2_A64_SVEF32MM);
+ GET_FEATURE_ID(aa64_sve_f64mm, ARM_HWCAP2_A64_SVEF64MM);
+ GET_FEATURE_ID(aa64_sve_bf16, ARM_HWCAP2_A64_SVEBF16);
+ GET_FEATURE_ID(aa64_i8mm, ARM_HWCAP2_A64_I8MM);
+ GET_FEATURE_ID(aa64_bf16, ARM_HWCAP2_A64_BF16);
+ GET_FEATURE_ID(aa64_rndr, ARM_HWCAP2_A64_RNG);
+ GET_FEATURE_ID(aa64_bti, ARM_HWCAP2_A64_BTI);
+ GET_FEATURE_ID(aa64_mte, ARM_HWCAP2_A64_MTE);
+
+ return hwcaps;
+}
+
+#undef GET_FEATURE_ID
+
+#endif /* TARGET_ARCH_ELF_H */
diff --git a/bsd-user/aarch64/target_arch_vmparam.h
b/bsd-user/aarch64/target_arch_vmparam.h
index dc66e1289b5..0c354919708 100644
--- a/bsd-user/aarch64/target_arch_vmparam.h
+++ b/bsd-user/aarch64/target_arch_vmparam.h
@@ -65,4 +65,10 @@ static inline void set_second_rval(CPUARMState *state,
abi_ulong retval2)
{
state->xregs[1] = retval2; /* XXX not really used on 64-bit arch */
}
+
+static inline abi_ulong get_second_rval(CPUARMState *state)
+{
+ return state->xregs[1];
+}
+
#endif /* TARGET_ARCH_VMPARAM_H */
--
2.45.1
- [PULL 00/15] Bsd user for 9.1 patches, Warner Losh, 2024/07/24
- [PULL 02/15] bsd-user:Add AArch64 register handling and related functions, Warner Losh, 2024/07/24
- [PULL 01/15] bsd-user:Add CPU initialization and management functions, Warner Losh, 2024/07/24
- [PULL 04/15] bsd-user:Add ARM AArch64 signal handling support, Warner Losh, 2024/07/24
- [PULL 08/15] bsd-user:Add AArch64 improvements and signal handling functions, Warner Losh, 2024/07/24
- [PULL 09/15] bsd-user: Simplify the implementation of execve, Warner Losh, 2024/07/24
- [PULL 05/15] bsd-user:Add get_mcontext function for ARM AArch64, Warner Losh, 2024/07/24
- [PULL 03/15] bsd-user:Add ARM AArch64 support and capabilities,
Warner Losh <=
- [PULL 06/15] bsd-user:Add setup_sigframe_arch function for ARM AArch64, Warner Losh, 2024/07/24
- [PULL 07/15] bsd-user:Add set_mcontext function for ARM AArch64, Warner Losh, 2024/07/24
- [PULL 10/15] bsd-user: Hard wire aarch64 to be 4k pages only, Warner Losh, 2024/07/24
- [PULL 11/15] bsd-user: Sync fork_start/fork_end with linux-user, Warner Losh, 2024/07/24
- [PULL 12/15] bsd-user: Define TARGET_SIGSTACK_ALIGN and use it to round stack, Warner Losh, 2024/07/24
- [PULL 14/15] bsd-user: Add aarch64 build to tree, Warner Losh, 2024/07/24
- [PULL 13/15] bsd-user: Make compile for non-linux user-mode stuff, Warner Losh, 2024/07/24
- [PULL 15/15] bsd-user: Add target.h for aarch64., Warner Losh, 2024/07/24
- Re: [PULL 00/15] Bsd user for 9.1 patches, Richard Henderson, 2024/07/24