File linux-user-Fake-proc-cpuinfo.patch of Package qemu

Overview Repositories Revisions Requests Users Attributes Meta

File linux-user-Fake-proc-cpuinfo.patch of Package qemu (Revision 0a647e7b9a221a6777c16d02374dcf3e)

Currently displaying revision 0a647e7b9a221a6777c16d02374dcf3e , Show latest

From: Alexander Graf <agraf@suse.de>
Date: Mon, 23 Jul 2012 10:24:14 +0200
Subject: linux-user: Fake /proc/cpuinfo
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fedora 17 for ARM reads /proc/cpuinfo and fails if it doesn't contain
ARM related contents. This patch implements a quick hack to expose real
/proc/cpuinfo data taken from a real world machine.

The real fix would be to generate at least the flags automatically based
on the selected CPU. Please do not submit this patch upstream until this
has happened.

Signed-off-by: Alexander Graf <agraf@suse.de>
[AF: Rebased for v1.6 and v1.7]
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 linux-user/syscall.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index cf5de07a09235e6d92735332dc7f..3bb2c8921fc203264bbc0a37fe1d 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6958,6 +6958,27 @@ static int open_self_stat(void *cpu_env, int fd)
     return 0;
 }
 
+#if defined(TARGET_ARM)
+static int open_cpuinfo(void *cpu_env, int fd)
+{
+    dprintf(fd,
+"Processor       : ARMv7 Processor rev 5 (v7l)\n"
+"BogoMIPS        : 799.53\n"
+"Features        : swp half thumb fastmult vfp edsp thumbee neon vfpv3\n"
+"CPU implementer : 0x41\n"
+"CPU architecture: 7\n"
+"CPU variant     : 0x2\n"
+"CPU part        : 0xc08\n"
+"CPU revision    : 5\n"
+"\n"
+"Hardware        : Genesi Efika MX (Smarttop)\n"
+"Revision        : 51030\n"
+"Serial          : 0000000000000000\n");
+
+    return 0;
+}
+#endif
+
 static int open_self_auxv(void *cpu_env, int fd)
 {
     CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
@@ -7100,6 +7121,9 @@ static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags,
 #if defined(TARGET_SPARC)
         { "/proc/cpuinfo", open_cpuinfo, is_proc },
 #endif
+#if defined(TARGET_ARM)
+        { "cpuinfo", open_cpuinfo, is_proc_myself },
+#endif
 #if defined(TARGET_M68K)
         { "/proc/hardware", open_hardware, is_proc },
 #endif

Places

File linux-user-Fake-proc-cpuinfo.patch of Package qemu (Revision 0a647e7b9a221a6777c16d02374dcf3e)

Places