From patchwork Tue Aug 1 23:08:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Helge Deller X-Patchwork-Id: 13337343 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D560AC0015E for ; Tue, 1 Aug 2023 23:10:24 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qQyU6-0007Li-NX; Tue, 01 Aug 2023 19:08:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qQyU5-0007Io-CG; Tue, 01 Aug 2023 19:08:57 -0400 Received: from mout.gmx.net ([212.227.17.22]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qQyU3-0004eM-0g; Tue, 01 Aug 2023 19:08:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1690931325; x=1691536125; i=deller@gmx.de; bh=CLBuhiY26Hae4yHJHgzL4EblVVc/pDWcYka5+oCl8+I=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=l+2tVrZHQpbvEy8khn2yV5ir7xsoDTz+yu3cS5ECfacHRwmEUAbUqAchQRZgf4mzgUeMpYQ pA70MLttXIZeWgbTdNff+35nlOk/kS+SS0VNIqLu5YIeocwTOiIJr4byN9izEYv00T82EErmH +KQEw59fZvCzlUUQ1bZKBSfX3jHYzUbkEijuM1hbGHzScklmoxik1iTelf3Cvn8PZre3gyYnj 0XTwusFXBA2kLMloXVJrPiad9EQFII6LtI1U3bj+hRDQdbdn4eTevfd5jvpZgqdwAt+yLDHTE vqj+IL1iR+IrRcNy3RwR8bJuuqFgid0RraUJz+xZIBZOwOkFgCdw== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from p100.fritz.box ([94.134.150.247]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MBDnC-1qZH063yow-00Cjrc; Wed, 02 Aug 2023 01:08:45 +0200 From: Helge Deller To: qemu-devel@nongnu.org Cc: Laurent Vivier , Peter Maydell , Richard Henderson , qemu-arm@nongnu.org, =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , Helge Deller Subject: [PATCH v2 2/3] linux-user: Emulate /proc/cpuinfo on aarch64 and arm Date: Wed, 2 Aug 2023 01:08:41 +0200 Message-ID: <20230801230842.414421-3-deller@gmx.de> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230801230842.414421-1-deller@gmx.de> References: <20230801230842.414421-1-deller@gmx.de> MIME-Version: 1.0 X-Provags-ID: V03:K1:+VuY8oQ1py8U6x73aQHS9aNf9Zqgr90V6g/DAQXJ3QXQaoVe7Md CGJY17hbhmyOy64Pm+t7m9D7RM76HxGDsJtLbBzlO2BfXDEjimvBA48PNp5n/WdnVJpZxA3 WjzBruilx6axyOarax9yVVAHz/QtmphhnUYyHRr1TovgnLh18y2TkgLHCqwG1Abgc1ZN259 3R2NvpTJhU6ZsGYXyyRIA== UI-OutboundReport: notjunk:1;M01:P0:+GfYl8Ls7MM=;TzjKVpjjueWIBBbAUa8S2wVfCvl LFW9LRPahg5Fs1IAJhsIz4yJn+dT+rmQfKqkE5OGoDhHhjRY5MCs95B9JpYc2UsJnrIHbB0eQ lLunXVy1yipzqmwARNJec0LKkGAr2CiPr7IS/K3ZZU8dpXGx+egiDqTRhoyMkKx5zsrpinw93 ZtBiBMNkPJgi2Ozi6cLYexweZBGX8YBkJRRC/lR2vJ/YG+cDn69VIbZTNUCSRcawP30P8Rany VGID5qzoGegGPKkRN11EkAnQ8M7kKHkVmWWdFm/LhQDql6HAs48+nYdlNjZY49Ksy684eVSjH 3EIPpD2M1fg2FfWI0T3dEwh3C6CtfcYwSW6pH4yXf7iHtHPicYbxftGXnaSZ3fTx5ePF2gy+o 4xpdivOdDBn8cFCa0h81IYTFWz0blSdoUFLwk1O6shRlixy3AsM2pk8DwVOpYO4PCHR6nLYvd h5Hj8zg49WNN4+yjQb4Qemgm9pVCxd3SCICTTVd5gyfSURnAVy2CwnWrA8FmLtQTIhRiAaT+y b8P485QezVVGtDAmRunJwm0CJ1CzG5s17ZKEOnEjBQd0fxoUYStVuoc4FApMQyIDcsE7li7Eo PzuMN+DXWtbLMx/k5sZ27e+aa1Jn08I/ZWBGvMWT4fKLEdB3fhjXp+0DbYNNn3ar6iHK8loiX KJFy6AGwLz1M3zf2gttNfJWHeh99lDazyKVPLAOhXBHJJsxbw7G3uLAiPl5xwZUbLoGrqSaQh tfAjiaFZgwzTU0Jn7L7eNUciIZMy7/j/I8iI7ElFfA4no1gjGgkf0RO8AjMRWdWOsOWmdjQtA vXmKpvKzcCthv6dtK/4GzunzMn9aE4IsbR9LnL6lm2B+nAMskjtWVkFcl1e4fkzzm3XWJJaeg XT5SisXH8q39hHLJCqrwB6yEx8cdgB9khEJZFFHJHWWyj+9rJhefppsRD9ltf5sh2lS3vYkGg x4j3nqApS56byJULsT6oKbJx/r0= Received-SPF: pass client-ip=212.227.17.22; envelope-from=deller@gmx.de; helo=mout.gmx.net X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add emulation for /proc/cpuinfo for arm architecture. The output below mimics output as seen on debian porterboxes. aarch64 output example: processor : 0 model name : ARMv8 Processor rev 0 (v8l) BogoMIPS : 100.00 Features : fp asimd aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svef32mm svef64mm svebf16 i8mm bf16 rng bti mte sme sme_i16i64 sme_f64f64 sme_i8i32 sme_f16f32 sme_b16f32 sme_f32f32 sme_fa64 CPU implementer : 00 CPU architecture: 8 CPU variant : 0 CPU part : 0x51 CPU revision : 0 arm output example: processor : 0 model name : ARMv7 Processor rev 0 (armv7l) BogoMIPS : 50.00 Features : swp half thumb fast_mult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x1 CPU part : 0xd07 CPU revision : 0 Hardware : arm,cortex-a57 Revision : 0000 Serial : 0000000000000000 Signed-off-by: Helge Deller v3: - show variant, part, revision and implementor based on midr value (suggested by Richard Henderson) v2: - show features of CPU which is actually being emulated by qemu (suggested by Peter Maydell) --- linux-user/elfload.c | 130 +++++++++++++++++++++++++++++++++++++++++-- linux-user/loader.h | 6 +- linux-user/syscall.c | 67 +++++++++++++++++++++- 3 files changed, 196 insertions(+), 7 deletions(-) -- 2.41.0 diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 861ec07abc..99804e477d 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -466,7 +466,7 @@ static bool init_guest_commpage(void) #define ELF_HWCAP get_elf_hwcap() #define ELF_HWCAP2 get_elf_hwcap2() -static uint32_t get_elf_hwcap(void) +uint32_t get_elf_hwcap(void) { ARMCPU *cpu = ARM_CPU(thread_cpu); uint32_t hwcaps = 0; @@ -508,7 +508,7 @@ static uint32_t get_elf_hwcap(void) return hwcaps; } -static uint32_t get_elf_hwcap2(void) +uint32_t get_elf_hwcap2(void) { ARMCPU *cpu = ARM_CPU(thread_cpu); uint32_t hwcaps = 0; @@ -521,6 +521,49 @@ static uint32_t get_elf_hwcap2(void) return hwcaps; } +const char *elf_hwcap_str(uint32_t bit) +{ + static const char *hwcap_str[] = { + [__builtin_ctz(ARM_HWCAP_ARM_SWP )] = "swp", + [__builtin_ctz(ARM_HWCAP_ARM_HALF )] = "half", + [__builtin_ctz(ARM_HWCAP_ARM_THUMB )] = "thumb", + [__builtin_ctz(ARM_HWCAP_ARM_26BIT )] = "26bit", + [__builtin_ctz(ARM_HWCAP_ARM_FAST_MULT)] = "fast_mult", + [__builtin_ctz(ARM_HWCAP_ARM_FPA )] = "fpa", + [__builtin_ctz(ARM_HWCAP_ARM_VFP )] = "vfp", + [__builtin_ctz(ARM_HWCAP_ARM_EDSP )] = "edsp", + [__builtin_ctz(ARM_HWCAP_ARM_JAVA )] = "java", + [__builtin_ctz(ARM_HWCAP_ARM_IWMMXT )] = "iwmmxt", + [__builtin_ctz(ARM_HWCAP_ARM_CRUNCH )] = "crunch", + [__builtin_ctz(ARM_HWCAP_ARM_THUMBEE )] = "thumbee", + [__builtin_ctz(ARM_HWCAP_ARM_NEON )] = "neon", + [__builtin_ctz(ARM_HWCAP_ARM_VFPv3 )] = "vfpv3", + [__builtin_ctz(ARM_HWCAP_ARM_VFPv3D16 )] = "vfpv3d16", + [__builtin_ctz(ARM_HWCAP_ARM_TLS )] = "tls", + [__builtin_ctz(ARM_HWCAP_ARM_VFPv4 )] = "vfpv4", + [__builtin_ctz(ARM_HWCAP_ARM_IDIVA )] = "idiva", + [__builtin_ctz(ARM_HWCAP_ARM_IDIVT )] = "idivt", + [__builtin_ctz(ARM_HWCAP_ARM_VFPD32 )] = "vfpd32", + [__builtin_ctz(ARM_HWCAP_ARM_LPAE )] = "lpae", + [__builtin_ctz(ARM_HWCAP_ARM_EVTSTRM )] = "evtstrm", + }; + + return bit < ARRAY_SIZE(hwcap_str) ? hwcap_str[bit] : NULL; +} + +const char *elf_hwcap2_str(uint32_t bit) +{ + static const char *hwcap_str[] = { + [__builtin_ctz(ARM_HWCAP2_ARM_AES )] = "aes", + [__builtin_ctz(ARM_HWCAP2_ARM_PMULL)] = "pmull", + [__builtin_ctz(ARM_HWCAP2_ARM_SHA1 )] = "sha1", + [__builtin_ctz(ARM_HWCAP2_ARM_SHA2 )] = "sha2", + [__builtin_ctz(ARM_HWCAP2_ARM_CRC32)] = "crc32", + }; + + return bit < ARRAY_SIZE(hwcap_str) ? hwcap_str[bit] : NULL; +} + #undef GET_FEATURE #undef GET_FEATURE_ID @@ -668,7 +711,7 @@ enum { #define GET_FEATURE_ID(feat, hwcap) \ do { if (cpu_isar_feature(feat, cpu)) { hwcaps |= hwcap; } } while (0) -static uint32_t get_elf_hwcap(void) +uint32_t get_elf_hwcap(void) { ARMCPU *cpu = ARM_CPU(thread_cpu); uint32_t hwcaps = 0; @@ -706,7 +749,7 @@ static uint32_t get_elf_hwcap(void) return hwcaps; } -static uint32_t get_elf_hwcap2(void) +uint32_t get_elf_hwcap2(void) { ARMCPU *cpu = ARM_CPU(thread_cpu); uint32_t hwcaps = 0; @@ -741,6 +784,85 @@ static uint32_t get_elf_hwcap2(void) return hwcaps; } +const char *elf_hwcap_str(uint32_t bit) +{ + static const char *hwcap_str[] = { + [__builtin_ctz(ARM_HWCAP_A64_FP )] = "fp", + [__builtin_ctz(ARM_HWCAP_A64_ASIMD )] = "asimd", + [__builtin_ctz(ARM_HWCAP_A64_EVTSTRM )] = "evtstrm", + [__builtin_ctz(ARM_HWCAP_A64_AES )] = "aes", + [__builtin_ctz(ARM_HWCAP_A64_PMULL )] = "pmull", + [__builtin_ctz(ARM_HWCAP_A64_SHA1 )] = "sha1", + [__builtin_ctz(ARM_HWCAP_A64_SHA2 )] = "sha2", + [__builtin_ctz(ARM_HWCAP_A64_CRC32 )] = "crc32", + [__builtin_ctz(ARM_HWCAP_A64_ATOMICS )] = "atomics", + [__builtin_ctz(ARM_HWCAP_A64_FPHP )] = "fphp", + [__builtin_ctz(ARM_HWCAP_A64_ASIMDHP )] = "asimdhp", + [__builtin_ctz(ARM_HWCAP_A64_CPUID )] = "cpuid", + [__builtin_ctz(ARM_HWCAP_A64_ASIMDRDM)] = "asimdrdm", + [__builtin_ctz(ARM_HWCAP_A64_JSCVT )] = "jscvt", + [__builtin_ctz(ARM_HWCAP_A64_FCMA )] = "fcma", + [__builtin_ctz(ARM_HWCAP_A64_LRCPC )] = "lrcpc", + [__builtin_ctz(ARM_HWCAP_A64_DCPOP )] = "dcpop", + [__builtin_ctz(ARM_HWCAP_A64_SHA3 )] = "sha3", + [__builtin_ctz(ARM_HWCAP_A64_SM3 )] = "sm3", + [__builtin_ctz(ARM_HWCAP_A64_SM4 )] = "sm4", + [__builtin_ctz(ARM_HWCAP_A64_ASIMDDP )] = "asimddp", + [__builtin_ctz(ARM_HWCAP_A64_SHA512 )] = "sha512", + [__builtin_ctz(ARM_HWCAP_A64_SVE )] = "sve", + [__builtin_ctz(ARM_HWCAP_A64_ASIMDFHM)] = "asimdfhm", + [__builtin_ctz(ARM_HWCAP_A64_DIT )] = "dit", + [__builtin_ctz(ARM_HWCAP_A64_USCAT )] = "uscat", + [__builtin_ctz(ARM_HWCAP_A64_ILRCPC )] = "ilrcpc", + [__builtin_ctz(ARM_HWCAP_A64_FLAGM )] = "flagm", + [__builtin_ctz(ARM_HWCAP_A64_SSBS )] = "ssbs", + [__builtin_ctz(ARM_HWCAP_A64_SB )] = "sb", + [__builtin_ctz(ARM_HWCAP_A64_PACA )] = "paca", + [__builtin_ctz(ARM_HWCAP_A64_PACG )] = "pacg", + }; + + return bit < ARRAY_SIZE(hwcap_str) ? hwcap_str[bit] : NULL; +} + +const char *elf_hwcap2_str(uint32_t bit) +{ + static const char *hwcap_str[] = { + [__builtin_ctz(ARM_HWCAP2_A64_DCPODP )] = "dcpodp", + [__builtin_ctz(ARM_HWCAP2_A64_SVE2 )] = "sve2", + [__builtin_ctz(ARM_HWCAP2_A64_SVEAES )] = "sveaes", + [__builtin_ctz(ARM_HWCAP2_A64_SVEPMULL )] = "svepmull", + [__builtin_ctz(ARM_HWCAP2_A64_SVEBITPERM )] = "svebitperm", + [__builtin_ctz(ARM_HWCAP2_A64_SVESHA3 )] = "svesha3", + [__builtin_ctz(ARM_HWCAP2_A64_SVESM4 )] = "svesm4", + [__builtin_ctz(ARM_HWCAP2_A64_FLAGM2 )] = "flagm2", + [__builtin_ctz(ARM_HWCAP2_A64_FRINT )] = "frint", + [__builtin_ctz(ARM_HWCAP2_A64_SVEI8MM )] = "svei8mm", + [__builtin_ctz(ARM_HWCAP2_A64_SVEF32MM )] = "svef32mm", + [__builtin_ctz(ARM_HWCAP2_A64_SVEF64MM )] = "svef64mm", + [__builtin_ctz(ARM_HWCAP2_A64_SVEBF16 )] = "svebf16", + [__builtin_ctz(ARM_HWCAP2_A64_I8MM )] = "i8mm", + [__builtin_ctz(ARM_HWCAP2_A64_BF16 )] = "bf16", + [__builtin_ctz(ARM_HWCAP2_A64_DGH )] = "dgh", + [__builtin_ctz(ARM_HWCAP2_A64_RNG )] = "rng", + [__builtin_ctz(ARM_HWCAP2_A64_BTI )] = "bti", + [__builtin_ctz(ARM_HWCAP2_A64_MTE )] = "mte", + [__builtin_ctz(ARM_HWCAP2_A64_ECV )] = "ecv", + [__builtin_ctz(ARM_HWCAP2_A64_AFP )] = "afp", + [__builtin_ctz(ARM_HWCAP2_A64_RPRES )] = "rpres", + [__builtin_ctz(ARM_HWCAP2_A64_MTE3 )] = "mte3", + [__builtin_ctz(ARM_HWCAP2_A64_SME )] = "sme", + [__builtin_ctz(ARM_HWCAP2_A64_SME_I16I64 )] = "sme_i16i64", + [__builtin_ctz(ARM_HWCAP2_A64_SME_F64F64 )] = "sme_f64f64", + [__builtin_ctz(ARM_HWCAP2_A64_SME_I8I32 )] = "sme_i8i32", + [__builtin_ctz(ARM_HWCAP2_A64_SME_F16F32 )] = "sme_f16f32", + [__builtin_ctz(ARM_HWCAP2_A64_SME_B16F32 )] = "sme_b16f32", + [__builtin_ctz(ARM_HWCAP2_A64_SME_F32F32 )] = "sme_f32f32", + [__builtin_ctz(ARM_HWCAP2_A64_SME_FA64 )] = "sme_fa64", + }; + + return bit < ARRAY_SIZE(hwcap_str) ? hwcap_str[bit] : NULL; +} + #undef GET_FEATURE_ID #endif /* not TARGET_AARCH64 */ diff --git a/linux-user/loader.h b/linux-user/loader.h index 59cbeacf24..324e5c872a 100644 --- a/linux-user/loader.h +++ b/linux-user/loader.h @@ -56,9 +56,13 @@ abi_long memcpy_to_target(abi_ulong dest, const void *src, extern unsigned long guest_stack_size; -#ifdef TARGET_S390X +#if defined(TARGET_S390X) || defined(TARGET_AARCH64) || defined(TARGET_ARM) uint32_t get_elf_hwcap(void); const char *elf_hwcap_str(uint32_t bit); #endif +#if defined(TARGET_AARCH64) || defined(TARGET_ARM) +uint32_t get_elf_hwcap2(void); +const char *elf_hwcap2_str(uint32_t bit); +#endif #endif /* LINUX_USER_LOADER_H */ diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 1ec7d27e37..51ce81cefb 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -8323,7 +8323,8 @@ void target_exception_dump(CPUArchState *env, const char *fmt, int code) #if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN || \ defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA) || \ - defined(TARGET_RISCV) || defined(TARGET_S390X) + defined(TARGET_RISCV) || defined(TARGET_S390X) || defined(TARGET_ARM) || \ + defined(TARGET_AARCH64) static int is_proc(const char *filename, const char *entry) { return strcmp(filename, entry) == 0; @@ -8539,6 +8540,67 @@ static int open_hardware(CPUArchState *cpu_env, int fd) } #endif +#if defined(TARGET_AARCH64) || defined(TARGET_ARM) +static int open_cpuinfo(CPUArchState *cpu_env, int fd) +{ + const int is64 = TARGET_ABI_BITS == 64; + ARMCPU *cpu = ARM_CPU(thread_cpu); + uint64_t midr = cpu->midr; + const int rev = (midr & 0xf); + const int arch = is64 ? 8 : 7; + uint32_t elf_hwcap = get_elf_hwcap(); + uint32_t elf_hwcap2 = get_elf_hwcap2(); + const char *hwcap_str; + int i, j, num_cpus; + + num_cpus = sysconf(_SC_NPROCESSORS_ONLN); + for (i = 0; i < num_cpus; i++) { + dprintf(fd, "processor\t: %d\n", i); + dprintf(fd, "model name\t: ARMv%d Processor rev %d (%s%c)\n", + arch, rev, is64 ? "v8" : "armv7", +#if TARGET_BIG_ENDIAN + 'b' +#else + 'l' +#endif + ); + dprintf(fd, "BogoMIPS\t: %d.00\n", is64 ? 100 : 50); + dprintf(fd, "Features\t:"); + for (j = 0; j < sizeof(elf_hwcap) * 8; j++) { + if (!(elf_hwcap & (1 << j))) { + continue; + } + hwcap_str = elf_hwcap_str(j); + if (hwcap_str) { + dprintf(fd, " %s", hwcap_str); + } + } + for (j = 0; j < sizeof(elf_hwcap2) * 8; j++) { + if (!(elf_hwcap2 & (1 << j))) { + continue; + } + hwcap_str = elf_hwcap2_str(j); + if (hwcap_str) { + dprintf(fd, " %s", hwcap_str); + } + } + dprintf(fd, "\n"); + dprintf(fd, "CPU implementer\t: %#02x\n", (int)(midr >> 24) & 0xff); + dprintf(fd, "CPU architecture: %d\n", arch); + dprintf(fd, "CPU variant\t: %#x\n", (int)(midr >> 20) & 0xf ); + dprintf(fd, "CPU part\t: %#03x\n", (int)(midr >> 4) & 0xfff); + dprintf(fd, "CPU revision\t: %d\n\n", rev); + } + + dprintf(fd, "Hardware\t: %s\n", cpu->dtb_compatible ? : ""); + if (!is64) { + dprintf(fd, "Revision\t: 0000\n"); + dprintf(fd, "Serial\t\t: 0000000000000000\n"); + } + + return 0; +} +#endif int do_guest_openat(CPUArchState *cpu_env, int dirfd, const char *fname, int flags, mode_t mode, bool safe) @@ -8561,7 +8623,8 @@ int do_guest_openat(CPUArchState *cpu_env, int dirfd, const char *fname, { "/proc/net/route", open_net_route, is_proc }, #endif #if defined(TARGET_SPARC) || defined(TARGET_HPPA) || \ - defined(TARGET_RISCV) || defined(TARGET_S390X) + defined(TARGET_RISCV) || defined(TARGET_S390X) || \ + defined(TARGET_ARM) || defined(TARGET_AARCH64) { "/proc/cpuinfo", open_cpuinfo, is_proc }, #endif #if defined(TARGET_M68K)