- 22 5月, 2010 3 次提交
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由 Richard Henderson 提交于
This will allow backends to make intelligent choices about how to implement GUEST_BASE. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Alpha passes oldset by value in a register, and returns the newset as the return value; as compared to the standard implementation in which both are passed by reference. This requires being able to distinguish negative return values that are not errors. Do this in the same way as the Alpha Linux kernel, by storing a zero in V0 in the implementation of the syscall. At the same time, fix a think-o in the regular sigprocmask path in which we passed the target, rather than the host, HOW value. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 19 5月, 2010 1 次提交
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由 takasi-y@ops.dti.ne.jp 提交于
rlim_t conversion between host and target added. Otherwise there are some incorrect case like - RLIM_INFINITY on 32bit target -> 64bit host. - RLIM_INFINITY on 64bit host -> mips and sparc target ? - Big value(for 32bit target) on 64bit host -> 32bit target. One is added into getrlimit, setrlimit, and ugetrlimit. It converts both RLIM_INFINITY and value bigger than target can hold(>31bit) to RLIM_INFINITY. Another one is added to guest_stack_size calculation introduced by 703e0e89. The rule is mostly same except the result on the case is keeping the value of guest_stack_size. Slightly tested for SH4, and x86_64 -linux-user on x86_64-pc-linux host. Signed-off-by: NTakashi YOSHII <takasi-y@ops.dti.ne.jp> Acked-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 27 4月, 2010 2 次提交
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由 Richard Henderson 提交于
Use an exception plus start_exclusive to implement the compare-and-swap. This follows the example set by the MIPS and PPC ports. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
This is a per-cpu flag; there's no need for a spinlock of any kind. We were also failing to manipulate the flag with $31 as a target reg and failing to clear the flag on execution of a return-from-interrupt instruction. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 26 4月, 2010 1 次提交
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由 Richard Henderson 提交于
Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 08 4月, 2010 1 次提交
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由 Aurelien Jarno 提交于
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 30 3月, 2010 1 次提交
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由 Blue Swirl 提交于
Arrange various declarations so that also non-CPU code can access them, adjust users. Move CPU specific code to cpus.c. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 27 3月, 2010 1 次提交
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由 Richard Henderson 提交于
The current default stack limit of 512kB is far too small; a fair number of gcc testsuite failures (for all guests) are directly attributable to this. Using the -s option in every invocation of the emulator is annoying to say the least. A reasonable compromise seems to be to honor the system rlimit. At least on two Linux distributions, this is set to 8MB and 10MB respectively. If the system does not limit the stack, then we're no worse off than before. At the same time, rename the variable from x86_stack_size and change the ultimate fallback size from 512kB to 8MB. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 13 3月, 2010 1 次提交
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由 Richard Henderson 提交于
Don't return addresses that aren't properly aligned for the guest, e.g. when the guest has a larger page size than the host. Don't return addresses that are outside the virtual address space for the target, by paying proper attention to the h2g/g2h macros. At the same time, place the default mapping base for 64-bit guests (on 64-bit hosts) outside the low 4G. Consistently interpret mmap_next_start in the guest address space. Signed-off-by: NRichard Henderson <rth@twiddle.net>
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- 01 3月, 2010 1 次提交
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由 Richard Henderson 提交于
Move userland PALcode handling into linux-user main loop so that we can send signals from there. This also makes alpha_palcode.c system-level only, so don't build it for userland. Add defines for GENTRAP PALcall mapping to signals. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 24 2月, 2010 1 次提交
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由 Richard Henderson 提交于
The existing set of IPRs is totally irrelevant to user-mode emulation. Indeed, they most are irrelevant to implementing kernel-mode emulation, and would only be relevant to PAL-mode emulation, which I suspect that no one will ever attempt. Reducing the set of processor registers reduces the size of the CPU state. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 23 2月, 2010 1 次提交
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由 john cooper 提交于
This is a reimplementation of prior versions which adds the ability to define cpu models for contemporary processors. The added models are likewise selected via -cpu <name>, and are intended to displace the existing convention of "-cpu qemu64" augmented with a series of feature flags. A primary motivation was determination of a least common denominator within a given processor class to simplify guest migration. It is still possible to modify an arbitrary model via additional feature flags however the goal here was to make doing so unnecessary in typical usage. The other consideration was providing models names reflective of current processors. Both AMD and Intel have reviewed the models in terms of balancing generality of migration vs. excessive feature downgrade relative to released silicon. This version of the patch replaces the prior hard wired definitions with a configuration file approach for new models. Existing models are thus far left as-is but may easily be transitioned to (or may be overridden by) the configuration file representation. Proposed new model definitions are provided here for current AMD and Intel processors. Each model consists of a name used to select it on the command line (-cpu <name>), and a model_id which corresponds to a least common denominator commercial instance of the processor class. A table of names/model_ids may be queried via "-cpu ?model": : x86 Opteron_G3 AMD Opteron 23xx (Gen 3 Class Opteron) x86 Opteron_G2 AMD Opteron 22xx (Gen 2 Class Opteron) x86 Opteron_G1 AMD Opteron 240 (Gen 1 Class Opteron) x86 Nehalem Intel Core i7 9xx (Nehalem Class Core i7) x86 Penryn Intel Core 2 Duo P9xxx (Penryn Class Core 2) x86 Conroe Intel Celeron_4x0 (Conroe/Merom Class Core 2) : Also added is "-cpu ?dump" which exhaustively outputs all config data for all defined models, and "-cpu ?cpuid" which enumerates all qemu recognized CPUID feature flags. The pseudo cpuid flag 'check' when added to the feature flag list will warn when feature flags (either implicit in a cpu model or explicit on the command line) would have otherwise been quietly unavailable to a guest: # qemu-system-x86_64 ... -cpu Nehalem,check warning: host cpuid 0000_0001 lacks requested flag 'sse4.2|sse4_2' [0x00100000] warning: host cpuid 0000_0001 lacks requested flag 'popcnt' [0x00800000] A similar 'enforce' pseudo flag exists which in addition to the above causes qemu to error exit if requested flags are unavailable. Configuration data for a cpu model resides in the target config file which by default will be installed as: /usr/local/etc/qemu/target-<arch>.conf The format of this file should be self explanatory given the definitions for the above six models and essentially mimics the structure of the static x86_def_t x86_defs. Encoding of cpuid flags names now allows aliases for both the configuration file and the command line which reconciles some Intel/AMD/Linux/Qemu naming differences. This patch was tested relative to qemu.git. Signed-off-by: Njohn cooper <john.cooper@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 24 12月, 2009 1 次提交
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由 Aurelien Jarno 提交于
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 21 12月, 2009 3 次提交
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由 Alexander Graf 提交于
For what I know DCR is always 32 bits wide, so we should also use uint32_t to pass it along the stacks. This fixes a warning when compiling qemu-system-ppc64 with KVM enabled, making it compile without --disable-werror Signed-off-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
Fix the alternate time base the same way as the default timebase. SPR_ATBL should return a 64-bit value on 64 bit implementations. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Alexander Graf 提交于
On PPC we have a 64-bit time base. Usually (PPC32) this is accessed using two separate 32 bit SPR accesses to SPR_TBU and SPR_TBL. On PPC64 the SPR_TBL register acts as 64 bit though, so we get the full 64 bits as return value. If we only take the lower ones, fine. But Linux wants to see all 64 bits or it breaks. This patch makes PPC64 Linux work even after TB crossed the 32-bit boundary, which usually happened a few seconds after bootup. Signed-off-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 20 12月, 2009 1 次提交
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由 Riku Voipio 提交于
mmap_lock() can be called while tb_lock() is being held. To avoid deadlock when one thread is holding mmap_lock and another tb_lock, _always_ lock first tb_lock(). Signed-off-by: NRiku Voipio <riku.voipio@nokia.com> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 11 12月, 2009 1 次提交
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由 Paul Brook 提交于
Signed-off-by: NPaul Brook <paul@codesourcery.com>
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- 24 11月, 2009 1 次提交
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由 Paul Brook 提交于
Signed-off-by: NPaul Brook <paul@codesourcery.com>
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- 23 11月, 2009 1 次提交
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由 Paul Brook 提交于
Implement ARMv6 atomic ops (ldrex/strex) using the same trick as PPC. Signed-off-by: NPaul Brook <paul@codesourcery.com>
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- 22 11月, 2009 1 次提交
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由 Aurelien Jarno 提交于
The variable CP0_LLAddr represent the full lladdr, not the actual register value, which is only part of this value and depends on the CPU. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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- 07 11月, 2009 1 次提交
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由 Blue Swirl 提交于
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 02 10月, 2009 2 次提交
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由 Anthony Liguori 提交于
In the very least, a change like this requires discussion on the list. The naming convention is goofy and it causes a massive merge problem. Something like this _must_ be presented on the list first so people can provide input and cope with it. This reverts commit 99a0949b. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 malc 提交于
Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: Nmalc <av1474@comtv.ru>
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- 14 9月, 2009 1 次提交
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由 Blue Swirl 提交于
This reverts commit 91b40c5b. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 13 9月, 2009 1 次提交
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由 Blue Swirl 提交于
While i386, x86_64 and Sparc64/OpenBSD still worked after df70204d, Sparc32 and Sparc64 Linux hosts broke. Partially revert the commit: make the restored code conditional to !CONFIG_USER_PIE. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 12 9月, 2009 1 次提交
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由 Kirill A. Shutemov 提交于
There is a link hack in linux-user which produces an executable that looks like PIE, but always has text relocations since all object files isn't position-independent (compiled without -fpic/-fpie). Dynamic loader has to do more work to load a binary with text relocations. The best way to keep this functionality is to build a true PIE without text relocations. Signed-off-by: NKirill A. Shutemov <kirill@shutemov.name> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 16 8月, 2009 1 次提交
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由 Blue Swirl 提交于
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 05 8月, 2009 1 次提交
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由 Igor Kovalenko 提交于
tl and tsptr of members sparc64 cpu state must be changed simultaneously to keep trap state window in sync with current trap level. Currently translation of store to tl does not change tsptr, which leads to corrupt trap state on corresponding trap level. This patch removes tsptr from sparc64 cpu state and replaces all uses with call to helper routine. Changes v0->v1: - reimplemented helper routine with tcg generator - on cpu reset trap type and pstate are populated with power-on reset values, including tl=maxtl Signed-off-by: igor.v.kovalenko@gmail.com Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 04 8月, 2009 1 次提交
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由 Nathan Froyd 提交于
We handle conditional stores as an exception so we can ensure that no other thread is changing memory out from underneath us. Signed-off-by: NNathan Froyd <froydnj@codesourcery.com> Signed-off-by: Nmalc <av1474@comtv.ru>
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- 28 7月, 2009 1 次提交
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 17 7月, 2009 2 次提交
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由 Paul Brook 提交于
Re-implement GUEST_BASE support. Offset guest ddress space by default if the guest binary contains regions below the host mmap_min_addr. Implement support for i386, x86-64 and arm hosts. Signed-off-by: NRiku Voipio <riku.voipio@iki.fi> Signed-off-by: NPaul Brook <paul@codesourcery.com>
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由 Blue Swirl 提交于
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 16 7月, 2009 1 次提交
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由 malc 提交于
Signed-off-by: Nmalc <av1474@comtv.ru>
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- 10 7月, 2009 2 次提交
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由 Isaku Yamahata 提交于
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Paul Brook 提交于
Implement MIPS ll/sc instructions using atomic compare+exchange. Signed-off-by: NPaul Brook <paul@codesourcery.com>
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- 09 7月, 2009 1 次提交
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由 Paul Brook 提交于
The clone syscall takes 6 args. Signed-off-by: NPaul Brook <paul@codesourcery.com>
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- 08 7月, 2009 1 次提交
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由 Arnaud Patard 提交于
There's a error When doing something like that : find / -type f -print0 | xargs -0 echo [ done in a arm chroot with qemu-arm and linux binfmt stuff or with find / -type f -print0 | qemu-arm -L <path> <path>/usr/bin/xargs -0 echo ] Doing this outsite qemu is fine. The problem was the huge number of parameters. Increasing MAX_ARG_PAGES is fixing that. While I was at it, I've modified linux-user/main.c to report error code of loader_exec. It helps to debug/know what's wrong. Signed-off-by: NArnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
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