- 15 9月, 2015 3 次提交
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由 P J P 提交于
Ne2000 NIC uses ring buffer of NE2000_MEM_SIZE(49152) bytes to process network packets. While receiving packets via ne2000_receive() routine, a local 'index' variable could exceed the ring buffer size, which could lead to a memory buffer overflow. Added other checks at initialisation. Reported-by: NQinghao Tang <luodalongde@gmail.com> Signed-off-by: NP J P <pjp@fedoraproject.org> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 P J P 提交于
While processing transmit descriptors, it could lead to an infinite loop if 'bytes' was to become zero; Add a check to avoid it. [The guest can force 'bytes' to 0 by setting the hdr_len and mss descriptor fields to 0. --Stefan] Signed-off-by: NP J P <pjp@fedoraproject.org> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com> Reviewed-by: NThomas Huth <thuth@redhat.com> Message-id: 1441383666-6590-1-git-send-email-stefanha@redhat.com
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由 Markus Armbruster 提交于
A feature new in Python 2.7 crept into commit 77e703b8: re.subn()'s fifth argument. Avoid that, use re.compile(). Reported-by: NLaurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: NMarkus Armbruster <armbru@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Tested-by: NLaurent Desnogues <laurent.desnogues@gmail.com> Message-id: 1441640755-23902-1-git-send-email-armbru@redhat.com Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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- 14 9月, 2015 33 次提交
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由 Peter Maydell 提交于
* Support for jemalloc * qemu_mutex_lock_iothread "No such process" fix * cutils: qemu_strto* wrappers * iohandler.c simplification * Many other fixes and misc patches. And some MTTCG work (with Emilio's fixes squashed): * Signal-free TCG kick * Removing spinlock in favor of QemuMutex * User-mode emulation multi-threading fixes/docs # gpg: Signature made Thu 10 Sep 2015 09:03:07 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" * remotes/bonzini/tags/for-upstream: (44 commits) cutils: work around platform differences in strto{l,ul,ll,ull} cpu-exec: fix lock hierarchy for user-mode emulation exec: make mmap_lock/mmap_unlock globally available tcg: comment on which functions have to be called with mmap_lock held tcg: add memory barriers in page_find_alloc accesses remove unused spinlock. replace spinlock by QemuMutex. cpus: remove tcg_halt_cond and tcg_cpu_thread globals cpus: protect work list with work_mutex scripts/dump-guest-memory.py: fix after RAMBlock change configure: Add support for jemalloc add macro file for coccinelle configure: factor out adding disas configure vhost-scsi: fix wrong vhost-scsi firmware path checkpatch: remove tests that are not relevant outside the kernel checkpatch: adapt some tests to QEMU CODING_STYLE: update mixed declaration rules qmp: Add example usage of strto*l() qemu wrapper cutils: Add qemu_strtoull() wrapper cutils: Add qemu_strtoll() wrapper ... Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
target-arm queue: * fix GIC region size in xlnx-zynqmp * xlnx-zynqmp: Remove unnecessary brackets * improve A64 generated TCG code * add GPIO devices to i.MX25 and i.MX31 * more missing pieces for EL2 support # gpg: Signature made Mon 14 Sep 2015 14:51:12 BST using RSA key ID 14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" # gpg: aka "Peter Maydell <pmaydell@gmail.com>" # gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" * remotes/pmaydell/tags/pull-target-arm-20150914: (24 commits) target-arm: Add VMPIDR_EL2 target-arm: Break out mpidr_read_val() target-arm: Add VPIDR_EL2 target-arm: Suppress EPD for S2, EL2 and EL3 translations target-arm: Suppress TBI for S2 translations target-arm: Add VTTBR_EL2 target-arm: Add VTCR_EL2 hw/cpu/{a15mpcore, a9mpcore}: Handle missing has_el3 CPU props gracefully i.MX: Add GPIO devices to i.MX25 SOC i.MX: Add GPIO devices to i.MX31 SOC i.MX: Add GPIO device target-arm: Use tcg_gen_extrh_i64_i32 target-arm: Recognize ROR target-arm: Eliminate unnecessary zero-extend in disas_bitfield target-arm: Recognize UXTB, UXTH, LSR, LSL target-arm: Recognize SXTB, SXTH, SXTW, ASR target-arm: Implement fcsel with movcond target-arm: Implement ccmp branchless target-arm: Use setcond and movcond for csel target-arm: Handle always condition codes within arm_test_cc ... Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Edgar E. Iglesias 提交于
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1442135278-25281-9-git-send-email-edgar.iglesias@gmail.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Edgar E. Iglesias 提交于
Break out mpidr_read_val() to allow future sharing of the code that conditionally sets the M and U bits of MPIDR. No functional changes. Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1442135278-25281-8-git-send-email-edgar.iglesias@gmail.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Edgar E. Iglesias 提交于
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1442135278-25281-7-git-send-email-edgar.iglesias@gmail.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Edgar E. Iglesias 提交于
Stage-2 translations, EL2 and EL3 regimes don't have the EPD control. Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1442135278-25281-6-git-send-email-edgar.iglesias@gmail.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Edgar E. Iglesias 提交于
Stage-2 MMU translations do not have configurable TBI as the top byte is always 0 (48-bit IPAs). Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1442135278-25281-5-git-send-email-edgar.iglesias@gmail.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Edgar E. Iglesias 提交于
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1442135278-25281-4-git-send-email-edgar.iglesias@gmail.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Edgar E. Iglesias 提交于
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1442135278-25281-3-git-send-email-edgar.iglesias@gmail.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> [PMM: fixed typo in comment] Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Edgar E. Iglesias 提交于
Handle missing CPU support for EL3 gracefully. Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1442135278-25281-2-git-send-email-edgar.iglesias@gmail.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Jean-Christophe Dubois 提交于
Signed-off-by: NJean-Christophe Dubois <jcd@tribudubois.net> Reviewed-by: NPeter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 2eb129ba8713aedfe877eaa3d8de80061d880fbb.1441828793.git.jcd@tribudubois.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Jean-Christophe Dubois 提交于
Signed-off-by: NJean-Christophe Dubois <jcd@tribudubois.net> Reviewed-by: NPeter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 60b67c9a8b948159f4b4163ead86fbf701c011c6.1441828793.git.jcd@tribudubois.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Jean-Christophe Dubois 提交于
Signed-off-by: NJean-Christophe Dubois <jcd@tribudubois.net> Reviewed-by: NPeter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 5ea3b0021e47cf7f7d883a7edbabee44980f3df7.1441828793.git.jcd@tribudubois.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
Usually, eliminate an operation from the translator by combining a shift with an extract. In the case of gen_set_NZ64, we don't need a boolean value for cpu_ZF, merely a non-zero value. Given that we can extract both halves of a 64-bit input in one call, this simplifies the code. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-12-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-11-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
For !SF, this initial ext32u can't be optimized away by the current TCG code generator. (It would require backward bit liveness propagation.) But since the range of bits for !SF are already constrained by unallocated_encoding, we'll never reference the high bits anyway. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-10-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
These are all special case aliases of UBFM. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-9-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
These are all special case aliases of SBFM. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-8-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-7-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
This can allow much of a ccmp to be elided when particular flags are subsequently dead. Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-6-git-send-email-rth@twiddle.net Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-5-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
Handling this with TCG_COND_ALWAYS will allow these unlikely cases to be handled without special cases in the rest of the translator. The TCG optimizer ought to be able to reduce these ALWAYS conditions completely. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-4-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
Split arm_gen_test_cc into 3 functions, so that it can be reused for non-branch TCG comparisons. Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-3-git-send-email-rth@twiddle.net Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Richard Henderson 提交于
This is a bug fix for aarch64. At present, we have branches using the 32-bit (translate.c) versions of cpu_[NZCV]F, but we set the flags using the 64-bit (translate-a64.c) versions of cpu_[NZCV]F. From the view of the TCG code generator, these are unrelated variables. The bug is hard to see because we currently only read these variables from branches, and upon reaching a branch TCG will first spill live variables and then reload the arguments of the branch. Since the 32-bit versions were never live until reaching the branch, we'd re-read the data that had just been spilled from the 64-bit versions. There is currently no such problem with the cpu_exclusive_* variables, but there's no point in tempting fate. Cc: qemu-stable@nongnu.org Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-2-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Alistair Francis 提交于
The errp and err variable have unnecessary brackets around them, so remove the brackets. Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com> Reviewed-by: NPeter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 9900393572b63f2ec3d68785ca98193d81e0ac71.1441758563.git.alistair.francis@xilinx.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Nathan Rossi 提交于
The GIC in ZynqMP cover a 64K address space, however the actual registers are decoded within a 4K address space and mirrored at the 4K boundaries. This change fixes the defined size for these regions as it was set to 0x4000/16K incorrectly. Signed-off-by: NNathan Rossi <nathan@nathanrossi.com> Reviewed-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1441719672-25296-1-git-send-email-nathan@nathanrossi.com Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
sh4-next: - TCG optimizations - fix initramfs endianness issue # gpg: Signature made Sun 13 Sep 2015 22:16:12 BST using RSA key ID 1DDD8C9B # gpg: Good signature from "Aurelien Jarno <aurelien@aurel32.net>" # gpg: aka "Aurelien Jarno <aurelien@jarno.fr>" # gpg: aka "Aurelien Jarno <aurel32@debian.org>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 7746 2642 A9EF 94FD 0F77 196D BA9C 7806 1DDD 8C9B * remotes/aurel/tags/pull-sh4-next-20150913: sh4: Fix initramfs initialization for endiannes-mismatched targets target-sh4: improve shad instruction target-sh4: improve shld instruction target-sh4: improve cmp/str instruction target-sh4: use deposit in swap.b instruction target-sh4: add flags markups for FP helpers Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Guenter Roeck 提交于
If host and target endianness does not match, loding an initramfs does not work. Fix by writing boot parameters with appropriate endianness conversion. Signed-off-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
The SH4 shad instruction can shift in both direction, depending on the sign of the shift. This is currently implemented using branches, which is not really efficient and prevents the optimizer to do its job. In practice it is often used with a constant loaded in a register just before. Simplify the implementation by computing both the value shifted to the left and to the right, and then selecting the correct one with a movcond. As with a negative value the shift amount can go up to 32 which is undefined, we shift the value in two steps. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
The SH4 shld instruction can shift in both direction, depending on the sign of the shift. This is currently implemented using branches, which is not really efficient and prevents the optimizer to do its job. In practice it is often used with a constant loaded in a register just before. Simplify the implementation by computing both the value shifted to the left and to the right, and then selecting the correct one with a movcond. As with a negative value the shift amount can go up to 32 which is undefined, we shift the value in two steps. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
Instead of testing bytes one by one, we can use the following trick from https://graphics.stanford.edu/~seander/bithacks.html: haszero(v) = (v - 0x01010101) & ~v & 0x80808080 The subexpression v - 0x01010101, evaluates to a high bit set in any byte whenever the corresponding byte in v is zero or greater than 0x80. The sub-expression ~v & 0x80808080 evaluates to high bits set in bytes where the byte of v doesn't have its high bit set (so the byte was less than 0x80). Finally, by ANDing these two sub-expressions the result is the high bits set where the bytes in v were zero, since the high bits set due to a value greater than 0x80 in the first sub-expression are masked off by the second. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
Most floating point helpers can trigger an exception, but don't change the globals. Mark these helpers as TCG_CALL_NO_WG. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 12 9月, 2015 4 次提交
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由 Peter Maydell 提交于
queued tcg related patches # gpg: Signature made Fri 11 Sep 2015 16:17:00 BST using RSA key ID 4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" * remotes/rth/tags/pull-tcg-20150911: cpu-exec: introduce loop exit with restore function softmmu: remove now unused functions softmmu: add helper function to pass through retaddr tlb: Add "ifetch" argument to cpu_mmu_index() Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
Add a brief comment describing how to use the debug support from GDB. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 1439574392-4403-5-git-send-email-peter.maydell@linaro.org
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由 Peter Maydell 提交于
SIGUSR1 is QEMU's IPI signal, and it gets sent a lot, so is best silently passed through to the guest without stopping. Make qemu-gdb.py do this bit of configuration for the user. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 1439574392-4403-4-git-send-email-peter.maydell@linaro.org
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由 Peter Maydell 提交于
Split the implementation of CoroutineCommand into its own file. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 1439574392-4403-3-git-send-email-peter.maydell@linaro.org
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