Commit Graph

15 Commits

Author SHA1 Message Date
Richard Henderson 7f0b7141b4 target-i386: Perform set/reset_inhibit_irq inline
With helpers that can be reused for other things.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-13 07:59:59 +11:00
Peter Maydell b6a0aa0537 x86: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1453832250-766-11-git-send-email-peter.maydell@linaro.org
2016-01-29 15:07:22 +00:00
Pavel Dovgalyuk 4054cdec04 target-i386: exception handling for other helper functions
This patch fixes exception handling for other helper functions.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 12:31:59 -07:00
Richard Henderson 2ef6175aa7 tcg: Invert the inclusion of helper.h
Rather than include helper.h with N values of GEN_HELPER, include a
secondary file that sets up the macros to include helper.h.  This
minimizes the files that must be rebuilt when changing the macros
for file N.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:54 -07:00
Richard Henderson d2fe51bda8 target-i386: Fix CC_OP_CLR vs PF
Parity should be set for a zero result.

Cc: qemu-stable@nongnu.org
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-28 08:43:15 -08:00
liguang 80cf2c81a1 target-i386/helper: remove DF macro
Signed-off-by: liguang <lig.fnst@cn.fujitsu.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Richard Henderson  <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-06-15 17:50:21 +00:00
Richard Henderson 436ff2d227 target-i386: Add CC_OP_CLR
Special case xor with self.  We need not even store the known
zero into cc_src.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-02-19 23:05:18 -08:00
Richard Henderson cd7f97cafd target-i386: Implement ADX extension
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-02-19 23:05:18 -08:00
Richard Henderson bc4b43dc2f target-i386: Implement BLSR, BLSMSK, BLSI
Do all of group 17 at one time for ease.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-02-18 15:52:05 -08:00
Richard Henderson 988c3eb0d6 target-i386: Use CC_SRC2 for ADC and SBB
Add another slot in ENV and store two of the three inputs.  This lets us
do less work when carry-out is not needed, and avoids the unpredictable
CC_OP after translating these insns.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-02-18 15:39:09 -08:00
Richard Henderson db9f259772 target-i386: Make helper_cc_compute_{all,c} const
Pass the data in explicitly, rather than indirectly via env.
This avoids all sorts of unnecessary register spillage.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-02-18 15:25:55 -08:00
Richard Henderson 8601c0b6c5 target-i386: Don't reference ENV through most of cc helpers
In preparation for making this a const helper.

By using the proper types in the parameters to the helper functions,
we get to avoid quite a lot of subsequent casting.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-02-18 15:21:31 -08:00
H. Peter Anvin a9321a4d49 x86: Implement SMEP and SMAP
This patch implements Supervisor Mode Execution Prevention (SMEP) and
Supervisor Mode Access Prevention (SMAP) for x86.  The purpose of the
patch, obviously, is to help kernel developers debug the support for
those features.

A fair bit of the code relates to the handling of CPUID features.  The
CPUID code probably would get greatly simplified if all the feature
bit words were unified into a single vector object, but in the
interest of producing a minimal patch for SMEP/SMAP, and because I had
very limited time for this project, I followed the existing style.

[ v2: don't change the definition of the qemu64 CPU shorthand, since
  that breaks loading old snapshots.  Per Anthony Liguori this can be
  fixed once the CPU feature set is snapshot.

  Change the coding style slightly to conform to checkpatch.pl. ]

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-01 08:04:22 -05:00
Blue Swirl f0967a1add x86: avoid AREG0 for condition code helpers
Add an explicit CPUX86State parameter instead of relying on AREG0.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-08-14 19:01:25 +00:00
Blue Swirl 5918fffb1d x86: split off condition code helpers
Move condition code helpers to cc_helper.c.

Move the shared inline functions lshift(), cpu_load_eflags() and
cpu_cc_compute_all() to cpu.h.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28 20:28:08 +00:00