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  1. 07 10月, 2015 1 次提交
  3. 28 9月, 2015 5 次提交
  5. 21 9月, 2015 1 次提交
    • A
      target-ppc: Fix SRR0 when taking unaligned exceptions · 6bb9a0a9
      由 Anton Blanchard 提交于 
      We are setting SRR0 to the instruction before the one causing the
unaligned exception. A quick testcase:

. = 0x100
.globl _start
_start:
	/* Cause a 0x600 */
	li	3,0x1
	stwcx.	3,0,3
1:	b	1b

. = 0x600
1:	b	1b

Built into something we can load as a BIOS image:

gcc -mbig -c test.S
ld -EB -Ttext 0x0 -o test test.o
objcopy -O binary test test.bin

Run with:

qemu-system-ppc64 -nographic -bios test.bin

Shows an incorrect SRR0 (points at the li):

SRR0 0000000000000100

With the patch we get the correct SRR0:

SRR0 0000000000000104
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NAlexander Graf <agraf@suse.de>
      6bb9a0a9
  7. 15 9月, 2015 3 次提交
  9. 11 9月, 2015 1 次提交
  11. 09 9月, 2015 1 次提交
  13. 07 9月, 2015 1 次提交
  15. 25 8月, 2015 1 次提交
  17. 15 7月, 2015 1 次提交
  19. 09 7月, 2015 2 次提交
  21. 07 7月, 2015 1 次提交
    • L
      linux-user, ppc: mftbl can be used by user application · 7d6b1dae
      由 Laurent Vivier 提交于 
      In qemu-linux-user, when calling gethostbyname2(),
it was hanging in .__res_nmkquery.

(gdb) bt
0 in .__res_nmkquery () from /lib64/libresolv.so.2
1 in .__libc_res_nquery () from /lib64/libresolv.so.2
2 in .__libc_res_nsearch () from /lib64/libresolv.so.2
3 in ._nss_dns_gethostbyname3_r () from /lib64/libnss_dns.so.2
4 in ._nss_dns_gethostbyname2_r () from /lib64/libnss_dns.so.2
5 in .gethostbyname2_r () from /lib64/libc.so.6
6 in .gethostbyname2 () from /lib64/libc.so.6

.__res_nmkquery() is:

...
do { RANDOM_BITS (randombits); } while ((randombits & 0xffff) == 0);
...

<.__res_nmkquery+112>:	mftbl   r11
<.__res_nmkquery+116>:	clrlwi  r10,r11,16
<.__res_nmkquery+120>:	cmpwi   cr7,r10,0
<.__res_nmkquery+124>:	beq     cr7,<.__res_nmkquery+112>

but as mftbl (Move From Time Base Lower) is not implemented,
r11 is always 0, so we have an infinite loop.

This patch fills the Time Base register with cpu_get_real_ticks().
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>
Signed-off-by: NAlexander Graf <agraf@suse.de>
      7d6b1dae
  23. 16 6月, 2015 1 次提交
  25. 12 6月, 2015 1 次提交
  27. 05 6月, 2015 1 次提交
  29. 28 4月, 2015 1 次提交
  31. 23 3月, 2015 1 次提交
  33. 22 3月, 2015 1 次提交
  35. 16 3月, 2015 1 次提交
    • M
      linux-user: Access correct register for get/set_tls syscalls on ARM TZ CPUs · b8d43285
      由 Mikhail Ilyin 提交于 
      When support was added for TrustZone to ARM CPU emulation, we failed
to correctly update the support for the linux-user implementation of
the get/set_tls syscalls. This meant that accesses to the TPIDRURO
register via the syscalls were always using the non-secure copy of
the register even if native MRC/MCR accesses were using the secure
register. This inconsistency caused most binaries to segfault on startup
if the CPU type was explicitly set to one of the TZ-enabled ones like
cortex-a15. (The default "any" CPU doesn't have TZ enabled and so is
not affected.)

Use access_secure_reg() to determine whether we should be using
the secure or the nonsecure copy of TPIDRURO when emulating these
syscalls.
Signed-off-by: NMikhail Ilyin <m.ilin@samsung.com>
Message-id: 1426505198-2411-1-git-send-email-m.ilin@samsung.com
[PMM: rewrote commit message to more clearly explain the issue
 and its consequences.]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      b8d43285
  37. 11 3月, 2015 1 次提交
    • E
      cpu: Make cpu_init() return QOM CPUState object · 2994fd96
      由 Eduardo Habkost 提交于 
      Instead of making cpu_init() return CPUArchState, return CPUState.

Changes were made using the Coccinelle semantic patch below.

  @@
  typedef CPUState;
  identifier e;
  expression args;
  type CPUArchState;
  @@
  -   e =
  +   cpu =
          cpu_init(args);
  -   if (!e) {
  +   if (!cpu) {
          ...
      }
  -   cpu = ENV_GET_CPU(env);
  +   e = cpu->env_ptr;

  @@
  identifier new_env, new_cpu, env, cpu;
  type CPUArchState;
  expression args;
  @@
  -{
  -   CPUState *cpu = ENV_GET_CPU(env);
  -   CPUArchState *new_env = cpu_init(args);
  -   CPUState *new_cpu = ENV_GET_CPU(new_env);
  +{
  +   CPUState *cpu = ENV_GET_CPU(env);
  +   CPUState *new_cpu = cpu_init(args);
  +   CPUArchState *new_env = new_cpu->env_ptr;
      ...
  }

  @@
  identifier c, cpu_init_func, cpu_model;
  type StateType, CPUType;
  @@
  -static inline StateType* cpu_init(const char *cpu_model)
  -{
  -   CPUType *c = cpu_init_func(cpu_model);
  (
  -   if (c == NULL) {
  -       return NULL;
  -   }
  -   return &c->env;
  |
  -   if (c) {
  -       return &c->env;
  -   }
  -   return NULL;
  )
  -}
  +#define cpu_init(cpu_model) CPU(cpu_init_func(cpu_model))

  @@
  identifier cpu_init_func;
  identifier model;
  @@
  -#define cpu_init(model) (&cpu_init_func(model)->env)
  +#define cpu_init(model) CPU(cpu_init_func(model))
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Anthony Green <green@moxielogic.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Max Filippov <jcmvbkbc@gmail.com>
[AF: Fixed up cpu_copy() manually]
Signed-off-by: NAndreas Färber <afaerber@suse.de>
      2994fd96
  39. 03 3月, 2015 1 次提交
  41. 26 2月, 2015 1 次提交
  43. 10 2月, 2015 1 次提交
  45. 28 1月, 2015 2 次提交
  47. 20 1月, 2015 2 次提交
  49. 16 12月, 2014 1 次提交
  51. 11 12月, 2014 1 次提交
  53. 03 11月, 2014 2 次提交
  55. 12 9月, 2014 1 次提交
  57. 22 8月, 2014 1 次提交
  59. 08 7月, 2014 1 次提交