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  1. 11 9月, 2012 4 次提交
  3. 10 9月, 2012 23 次提交
  5. 09 9月, 2012 2 次提交
    • J
      kvm: Clean up irqfd API · b131c74a
      由 Jan Kiszka 提交于 
      No need to expose the fd-based interface, everyone will already be fine
with the more handy EventNotifier variant. Rename the latter to clarify
that we are still talking about irqfds here.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Acked-by: NAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>
      b131c74a
    • C
      qemu: Use valgrind annotations to mark kvm guest memory as defined · 62fe8331
      由 Christian Borntraeger 提交于 
      valgrind with kvm produces a big amount of false positives regarding
"Conditional jump or move depends on uninitialised value(s)". This
happens because the guest memory is allocated with qemu_vmalloc which
boils down posix_memalign etc. This function is (correctly) considered
by valgrind as returning undefined memory.

Since valgrind is based on jitting code, it will not be able to see
changes made by the guest to guest memory if this is done by KVM_RUN,
thus keeping most of the guest memory undefined.

Now lots of places in qemu will then use guest memory to change behaviour.
To avoid the flood of these messages, lets declare the whole guest
memory as defined. This will reduce the noise and allows us to see real
problems.

In the future we might want to make this conditional, since there
is actually something that we can use those false positives for:
These messages will point to code that depends on guest memory, so
we can use these backtraces to actually make an audit that is focussed
only at those code places. For normal development we dont want to
see those messages, though.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>
      62fe8331
  7. 08 9月, 2012 6 次提交
    • J
      musicpal: Fix flash mapping · 0c267217
      由 Jan Kiszka 提交于 
      The old arithmetic assumed 32 physical address bits which is no longer
true for ARM since 3cc0cd61.
Signed-off-by: NJan Kiszka <jan.kiszka@web.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      0c267217
    • F
      Add MAINTAINERS entry for leon3 · ce6c760c
      由 Fabien Chouteau 提交于 
      Signed-off-by: NFabien Chouteau <chouteau@adacore.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      ce6c760c
    • A
      target-sparc: fix fcmp{s,d,q} instructions wrt exception · 5acfc832
      由 Aurelien Jarno 提交于 
      fcmp{s,d,q} instructions are supposed to ignore quiet NaN (contrary to
the fcmpe{s,d,q} instructions), but the current code is wrongly setting
the NV exception in that case. Moreover the current code is duplicated:
first the arguments are checked for NaN to generate an exception, and
later in case the comparison is unordered (which can only happens if one
of the argument is a NaN), the same check is done to generate an
exception.

Fix that by calling clear_float_exceptions() followed by
check_ieee_exceptions() as for the other floating point instructions.
Use the _compare_quiet functions for fcmp{s,d,q} and the _compare ones
for fcmpe{s,d,q}. Simplify the flag setting by not clearing a flag that
is set the line just below.

This fix allows the math glibc testsuite to pass.

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      5acfc832
    • M
      target-xtensa: fix missing errno codes for mingw32 · c29b1bee
      由 Max Filippov 提交于 
      Put the following errno value mappings under #ifdef:

xtensa-semi.c: In function 'errno_h2g':
xtensa-semi.c:113: error: 'ENOTBLK' undeclared (first use in this function)
xtensa-semi.c:113: error: (Each undeclared identifier is reported only once
xtensa-semi.c:113: error: for each function it appears in.)
xtensa-semi.c:113: error: array index in initializer not of integer type
xtensa-semi.c:113: error: (near initialization for 'guest_errno')
xtensa-semi.c:124: error: 'ETXTBSY' undeclared (first use in this function)
xtensa-semi.c:124: error: array index in initializer not of integer type
xtensa-semi.c:124: error: (near initialization for 'guest_errno')
xtensa-semi.c:134: error: 'ELOOP' undeclared (first use in this function)
xtensa-semi.c:134: error: array index in initializer not of integer type
xtensa-semi.c:134: error: (near initialization for 'guest_errno')
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      c29b1bee
    • S
      target-cris: Fix buffer overflow · c001ed15
      由 Stefan Weil 提交于 
      Report from smatch:

target-cris/translate.c:3464 cpu_dump_state(32) error:
 buffer overflow 'env->sregs' 4 <= 255

sregs is declared 'uint32_t sregs[4][16]', so the first index must be
less than 4 or ARRAY_SIZE(env->sregs).
Signed-off-by: NStefan Weil <sw@weilnetz.de>
      c001ed15
    • M
      MIPS/user: Fix reset CPU state initialization · 03e6e501
      由 Maciej W. Rozycki 提交于 
       This change updates the CPU reset sequence to use a common piece of code
that figures out CPU state flags, fixing the problem with MIPS_HFLAG_COP1X
not being set where applicable that causes floating-point MADD family
instructions (and other instructions from the MIPS IV FP subset) to trap.

 As compute_hflags is now shared between op_helper.c and translate.c, the
function is now moved to a common header.  There are no changes to this
function.

 The problem was seen with the 24Kf MIPS32r2 processor in user emulation.
The new approach prevents system and user emulation from diverging -- all
the hflags state is initialized in one place now.
Signed-off-by: NMaciej W. Rozycki <macro@codesourcery.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
      03e6e501
  9. 07 9月, 2012 5 次提交