From patchwork Fri Aug 10 18:53:21 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 10563085 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A581C1057 for ; Fri, 10 Aug 2018 18:54:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8AC3B2B18F for ; Fri, 10 Aug 2018 18:54:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7C3A22B3B4; Fri, 10 Aug 2018 18:54:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id CCD2F2B18F for ; Fri, 10 Aug 2018 18:54:52 +0000 (UTC) Received: from localhost ([::1]:57589 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1foCYl-0003dl-Cw for patchwork-qemu-devel@patchwork.kernel.org; Fri, 10 Aug 2018 14:54:51 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52603) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1foCY1-000303-JP for qemu-devel@nongnu.org; Fri, 10 Aug 2018 14:54:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1foCXy-0004Jv-DM for qemu-devel@nongnu.org; Fri, 10 Aug 2018 14:54:05 -0400 Received: from mout.kundenserver.de ([212.227.17.13]:34417) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1foCXy-0004Ig-2o for qemu-devel@nongnu.org; Fri, 10 Aug 2018 14:54:02 -0400 Received: from localhost.localdomain ([78.238.229.36]) by mrelayeu.kundenserver.de (mreue103 [212.227.15.183]) with ESMTPSA (Nemesis) id 0LfGuG-1gGfeu3mbQ-00ooUH; Fri, 10 Aug 2018 20:53:41 +0200 From: Laurent Vivier To: qemu-devel@nongnu.org Date: Fri, 10 Aug 2018 20:53:21 +0200 Message-Id: <20180810185321.20017-2-laurent@vivier.eu> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180810185321.20017-1-laurent@vivier.eu> References: <20180810185321.20017-1-laurent@vivier.eu> X-Provags-ID: V03:K1:6yDPtRN1Ltasg26uqFv213QP0HEqF/AJwb9Qt6blBmurpLiQUbt BnjJLU5AXWyGnHwKDPwsMMc33U6kB27sCfkld8m5uADFjZBK8DsY12vawXESN/4DlRuDohC EdkDTqv18LWrmZLwAvVT5ewX9PAxVcZEObp3t40VmWE9o1S29F5gTROBBDacUADHnrYwmG7 aiGoJnlPTTjA5h7JRIk+g== X-UI-Out-Filterresults: notjunk:1;V01:K0:7py56SZr+tU=:lRAREm9j1OhL4VcmpSxZpp ZcG3n76PjRCdZRuVZrzpI5flLuKJVhbhPZr8lN8JCB2c7i90uIIHyYN4Mx1RGQTAhOeEDuaKZ KiBt36bllPUph87oX2cypEfP+N3+I4CTvnB4vhMbMf8aT0Jyf3jOsXxiOaPZBBTyAuekSSGpi 4WR87OAETbWb4JBgY9cTgL8lwymkE4xD5/RDRnLjYnOkF4LkJ/B3mh3ihSe8ZtfqrNcDiYPW8 Y1k9sBDiXUubXVe86T9mTRD8Pxizp/dZ0jbVMN0iERFnh6zz/bseC8knXLLBNWT53+1QeSYLB 4XhbqaTQLIXp1WxVMTpKBIqb+hbb/w070WyCjsNER6cLBA/uPElrjvTQD4zeAz8T6QAfEfhIu MmnrMMjHcCcQ5x3aQ1Rj9LiSJXshhjkeyCdD/xIEwOZHYIVBmxOzih8n37TESXFRY2jr0pwh4 zHxT+tDhFfK6We+dM6S+5NpazeqEKGIDKud16UA3pxvlV4Sbo6VMgq2eErNbSakcoQvaKOcqi +1edhdlcKb36SV9iT37rZHejEOvpt3oj2NbLbAaHuQn8Dc9BjBp+MK8L6ut8c7lEgD77b0+l/ cRTL9xdqzpYCsPrtNiuBC/YpIM6q5bwJhiCx8JTZjCsZaF3cADd/TXefZNdnRnMh/qJ93dEAW X1uaZ7xYfwPSatChi29DfO7lQkBE958MTNct6W+jBYQ6qu0laWMvXR9sTAQwo2flLvQc= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 212.227.17.13 Subject: [Qemu-devel] [PATCH 2/2] 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 , Peter Crosthwaite , Riku Voipio , Laurent Vivier , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP 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 a "target_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 --- 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..84c058e0f2 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 target_ptr; +#define TARGET_ABI_FMT_ptr "%x" +#else +typedef uint64_t target_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)(target_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; \ + (target_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 target_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, target_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; + target_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..5bb09d66c8 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, target_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, + target_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, target_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, + target_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, target_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, + target_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,