From patchwork Tue Aug 14 17:12:17 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 957600 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=vivier.eu Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41qfm247R6z9sDQ for ; Wed, 15 Aug 2018 03:31:45 +1000 (AEST) Received: from localhost ([::1]:45238 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fpdAU-0001uQ-Ru for incoming@patchwork.ozlabs.org; Tue, 14 Aug 2018 13:31:42 -0400 Received: from [2001:4830:134:3::10] (port=35287 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fpd5J-0004Ph-E7 for qemu-devel@nongnu.org; Tue, 14 Aug 2018 13:26:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fpd50-0004gB-6F for qemu-devel@nongnu.org; Tue, 14 Aug 2018 13:26:17 -0400 Received: from mout.kundenserver.de ([212.227.126.130]:58271) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fpd4z-0004e2-SE for qemu-devel@nongnu.org; Tue, 14 Aug 2018 13:26:02 -0400 Received: from localhost.localdomain ([78.238.229.36]) by mrelayeu.kundenserver.de (mreue007 [212.227.15.167]) with ESMTPSA (Nemesis) id 0MITed-1fs5Zf0OVj-0048p1; Tue, 14 Aug 2018 19:12:24 +0200 From: Laurent Vivier To: qemu-devel@nongnu.org Date: Tue, 14 Aug 2018 19:12:17 +0200 Message-Id: <20180814171217.14680-1-laurent@vivier.eu> X-Mailer: git-send-email 2.17.1 X-Provags-ID: V03:K1:7etEwQZKAtuFzUcwL5a1zDo4VBDQd9e6KdjdiiTtDVuxF/YsV9W j7OBj/a+x4e7qufI+MtxhBKMUumBpiGVbNEzdkLm5wJcdDiisEDBfMVR3VEfdzEN6/iHF4S C16eobdwGMEkLtcxuVLyeRnK2znhuJQcsdvVzoiGeXZkeRz+yLd08BkpHkX1Dv34+4idpfZ Tk2Yrtgh5FUCutpSMRQ+w== X-UI-Out-Filterresults: notjunk:1; V01:K0:KycR/NBIds8=:YzjLLrzzO/xM1H4sW8OVJZ NSKQ2RxZKz9PCzHUM1KXIoTrLHIHEmfTQeuzZtDdVkhtPsy4Jbox+TqBJwIslzKvlk2DXEa6Q foCSzRDcHfPrR0NbqPWm5bqbpXANDGdgqI/iC13jcM9HM/u6s/ffnLWG9JMIBHTaOnqbKOEMB VtsimXWuC0dLY69rwMTnNP6JW1FDFiJnh5VbFSPqP+v9cbM8L54Icmm7nTF4RB0ybnp4Btael lAqBa0FAAmQ/Ym7NZY024bcq9Vs1VQBovIiy5o/iyn3pQLcd+6d9UG8y21+x0PjB3xu1f1bie iJV5Zq/nNZsJUSuBI7j54FAA0Oqbof1ub5O5wYDrgHXMsf7mWOjOxab7mvDJK72vYZnXBQzzZ OG/+2JXc8/U7BcwxcrgV1N4XIwlJTL5GGHxTqO3trnHtSK/eKIAxbrDkilWJKSGFYsK6Nwc7f iMq5MFhGnvmQ/RxfOQN015EC6Bgt8XNb86Y/YdehRduU4h1SCAOu9qFay42XESUyA3Re4rSaU LPDq4b2P5C4FpOMnjAJfLcfmbBuB04vf31eFeO4e939yiOv6Lqj9hHIr4oYvw46MKM7FJSFiV JPrujsUosBXLdS2hvQw7uPhG1Xf8d+Kq9m4UwEC/C7E42WaejLRsb4VnWSyb0U1M7lL9xMxXf uIFvDt99p8XKTHh1BgmFI+3iuryXlFNwSWcFyevLzQk88PvVkL5ErAJMQ1fZw5Do1JTk= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 212.227.126.130 Subject: [Qemu-devel] [PATCH v2] linux-user: fix 32bit g2h()/h2g() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Riku Voipio , Peter Crosthwaite , Laurent Vivier , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" sparc32plus has 64bit long type but only 32bit virtual address space. For instance, "apt-get upgrade" failed because of a mmap()/msync() sequence. mmap() returned 0xff252000 but msync() used g2h(0xffffffffff252000) to find the host address. The "(target_ulong)" in g2h() doesn't fix the address because it is 64bit long. This patch introduces an "abi_ptr" that is set to uint32_t if the virtual address space is addressed using 32bit in the linux-user case. It stays set to target_ulong with softmmu case. Signed-off-by: Laurent Vivier --- Notes: v2: s/target_ptr/abi_ptr/ remove strace msync patch from the series include/exec/cpu_ldst.h | 23 ++++++++++++++++++----- include/exec/cpu_ldst_useronly_template.h | 12 ++++++------ linux-user/syscall.c | 2 +- 3 files changed, 25 insertions(+), 12 deletions(-) diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h index 0f2cb717b1..119b36b72d 100644 --- a/include/exec/cpu_ldst.h +++ b/include/exec/cpu_ldst.h @@ -48,8 +48,19 @@ #define CPU_LDST_H #if defined(CONFIG_USER_ONLY) +/* sparc32plus has 64bit long but 32bit space address + * this can make bad result with g2h() and h2g() + */ +#if TARGET_VIRT_ADDR_SPACE_BITS <= 32 +typedef uint32_t abi_ptr; +#define TARGET_ABI_FMT_ptr "%x" +#else +typedef uint64_t abi_ptr; +#define TARGET_ABI_FMT_ptr PRIx64 +#endif + /* All direct uses of g2h and h2g need to go away for usermode softmmu. */ -#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + guest_base)) +#define g2h(x) ((void *)((unsigned long)(abi_ptr)(x) + guest_base)) #define guest_addr_valid(x) ((x) <= GUEST_ADDR_MAX) #define h2g_valid(x) guest_addr_valid((unsigned long)(x) - guest_base) @@ -61,7 +72,7 @@ static inline int guest_range_valid(unsigned long start, unsigned long len) #define h2g_nocheck(x) ({ \ unsigned long __ret = (unsigned long)(x) - guest_base; \ - (abi_ulong)__ret; \ + (abi_ptr)__ret; \ }) #define h2g(x) ({ \ @@ -69,7 +80,9 @@ static inline int guest_range_valid(unsigned long start, unsigned long len) assert(h2g_valid(x)); \ h2g_nocheck(x); \ }) - +#else +typedef target_ulong abi_ptr; +#define TARGET_ABI_FMT_ptr TARGET_ABI_FMT_lx #endif #if defined(CONFIG_USER_ONLY) @@ -397,7 +410,7 @@ extern __thread uintptr_t helper_retaddr; * This is the equivalent of the initial fast-path code used by * TCG backends for guest load and store accesses. */ -static inline void *tlb_vaddr_to_host(CPUArchState *env, target_ulong addr, +static inline void *tlb_vaddr_to_host(CPUArchState *env, abi_ptr addr, int access_type, int mmu_idx) { #if defined(CONFIG_USER_ONLY) @@ -405,7 +418,7 @@ static inline void *tlb_vaddr_to_host(CPUArchState *env, target_ulong addr, #else int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); CPUTLBEntry *tlbentry = &env->tlb_table[mmu_idx][index]; - target_ulong tlb_addr; + abi_ptr tlb_addr; uintptr_t haddr; switch (access_type) { diff --git a/include/exec/cpu_ldst_useronly_template.h b/include/exec/cpu_ldst_useronly_template.h index e30e58ed4a..0fd6019af0 100644 --- a/include/exec/cpu_ldst_useronly_template.h +++ b/include/exec/cpu_ldst_useronly_template.h @@ -62,7 +62,7 @@ #endif static inline RES_TYPE -glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr) +glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr) { #if !defined(CODE_ACCESS) trace_guest_mem_before_exec( @@ -74,7 +74,7 @@ glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr) static inline RES_TYPE glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env, - target_ulong ptr, + abi_ptr ptr, uintptr_t retaddr) { RES_TYPE ret; @@ -86,7 +86,7 @@ glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env, #if DATA_SIZE <= 2 static inline int -glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr) +glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr) { #if !defined(CODE_ACCESS) trace_guest_mem_before_exec( @@ -98,7 +98,7 @@ glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr) static inline int glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env, - target_ulong ptr, + abi_ptr ptr, uintptr_t retaddr) { int ret; @@ -111,7 +111,7 @@ glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env, #ifndef CODE_ACCESS static inline void -glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr, +glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr, RES_TYPE v) { #if !defined(CODE_ACCESS) @@ -124,7 +124,7 @@ glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr, static inline void glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env, - target_ulong ptr, + abi_ptr ptr, RES_TYPE v, uintptr_t retaddr) { diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 6db0e8b9fb..e5b410c839 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -7664,7 +7664,7 @@ static int open_self_maps(void *cpu_env, int fd) if (h2g(min) == ts->info->stack_limit) { pstrcpy(path, sizeof(path), " [stack]"); } - dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx + dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n", h2g(min), h2g(max - 1) + 1, flag_r, flag_w, flag_x, flag_p, offset, dev_maj, dev_min, inode,