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2010-07-30linux-user: fix build on hosts not using guest baseAurelien Jarno
Commit 68a1c816868b3e35a1da698af412b29e61b1948a broke qemu on hosts not using guest base. It uses reserved_va unconditionally in mmap.c. To avoid to many #ifdef #endif blocks, define RESERVED_VA as either reserved_va or 0ul, and use it instead of reserved_va, similarly to what has been done with guest_base/GUEST_BASE.
2010-07-06qemu_ram_free: Implement itAlex Williamson
Now that we can support a ram_addr_t space with holes, we can implement qemu_ram_free(). Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-06ramblocks: Make use of DeviceState pointer and BusInfo.get_dev_pathAlex Williamson
With these two pieces in place, we can start naming ramblocks. When the device is present and it lives on a bus that provides a device path, we concatenate the path and the provided name. Otherwise we just use name. The resulting id string must be unique. For now we assume an allocation for the same name and size is a device that has been removed and reinserted and return the same block. This will go away once qemu_ram_free() is implemented. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-06Remove uses of ram.last_offset (aka last_ram_offset)Alex Williamson
We currently need this either to allocate the next ram_addr_t for a new block, or for total memory to be migrated. Both of which we can calculate without need of this to keep us in a contiguous address space. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-06-14ram_blocks: Convert to a QLISTAlex Williamson
This makes the RAM block list easier to manipulate. Also incorporate relevant variables into the RAMList struct. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Chris Wright <chrisw@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-05-29Pre-allocate guest address spacePaul Brook
Allow pre-allocation of the guest virtual address space in usermode emulation. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-05-11add cpu_is_stopped helperMarcelo Tosatti
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-05-11port qemu-kvm's on_vcpu codeMarcelo Tosatti
run_on_cpu allows to execute work on a given CPUState context. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-05-05Remove PAGE_RESERVEDPaul Brook
The usermode PAGE_RESERVED code is not required by the current mmap implementation, and is already broken when guest_base != 0. Unfortunately the bsd emulation still uses the old mmap implementation, so we can't rip it out altogether. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-04-17Fix --enable-profiler compilation.Richard Henderson
There's a header file inclusion ordering problem between cpu-all.h and qemu-timer.h, such that cpu_get_real_ticks is not defined when we attempt to use it in profile_getclock. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-08Introduce wrapper functions to access phys_ram_dirty.Yoshiaki Tamura
Adds wrapper functions to prevent direct access to the phys_ram_dirty bitmap. Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp> Signed-off-by: OHMURA Kei <ohmura.kei@lab.ntt.co.jp> Reviewed-by: Avi Kivity <avi@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-29Compile qemu-timer only onceBlue Swirl
Arrange various declarations so that also non-CPU code can access them, adjust users. Move CPU specific code to cpus.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-29Move cpu_exec_init_all() declaration to qemu-common.hBlue Swirl
Let cpu_exec_init_all() be called from non-CPU code. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-21Compile pci only onceBlue Swirl
Move coalesced_mmio declarations to a more accessible location. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-17split out qemu-timer.cPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-12Fix usermode virtual address typePaul Brook
Usermode virtual addresses are abi_ulong, not target_ulong. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12Remove cpu_get_phys_page_debug from userspace emulationPaul Brook
cpu_get_phys_page_debug makes no sense for userspace emulation, so remove it. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12Disable phsyical memory handling in userspace emulation.Paul Brook
Code to handle physical memory access is not meaningful in usrmode emulation, so disable it. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12Implement multi-level page tables.Richard Henderson
Define L1_MAP_ADDR_SPACE_BITS to be either the virtual address size (in user mode) or physical address size (in system mode), and use that to size l1_map. This rewrites page_find_alloc, page_flush_tb, and walk_memory_regions. Use TARGET_PHYS_ADDR_SPACE_BITS for the physical memory map based off of l1_phys_map. This rewrites page_phys_find_alloc and phys_page_for_each. Signed-off-by: Richard Henderson <rth@twiddle.net>
2010-03-12Use TARGET_VIRT_ADDR_SPACE_BITS in h2g_valid.Richard Henderson
Previously, only 32-bit guests had a proper check for the validity of the virtual address. Extend that check to 64-bit guests with a restricted virtual address space. Signed-off-by: Richard Henderson <rth@twiddle.net>
2010-03-04Add option to use file backed guest memoryMarcelo Tosatti
Port qemu-kvm's -mem-path and -mem-prealloc options. These are useful for backing guest memory with huge pages via hugetlbfs. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> CC: john cooper <john.cooper@redhat.com>
2010-03-01Move ioport.h out of cpu-all.hPaul Brook
Only include ioport.h where it is actually needed. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-02-03kvm: Flush coalesced MMIO buffer periodlySheng Yang
The default action of coalesced MMIO is, cache the writing in buffer, until: 1. The buffer is full. 2. Or the exit to QEmu due to other reasons. But this would result in a very late writing in some condition. 1. The each time write to MMIO content is small. 2. The writing interval is big. 3. No need for input or accessing other devices frequently. This issue was observed in a experimental embbed system. The test image simply print "test" every 1 seconds. The output in QEmu meets expectation, but the output in KVM is delayed for seconds. Per Avi's suggestion, I hooked flushing coalesced MMIO buffer in VGA update handler. By this way, We don't need vcpu explicit exit to QEmu to handle this issue. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2009-12-20cpu-all.h: fix cpu_get_real_ticks() #ifdefAurelien Jarno
Reported-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-24cpu-all.h: fix cpu_get_real_ticks on mips hostArnaud Patard
Fix cpu_get_real_ticks: - check should be done on __mips and not __mips_isa_rev - linux kernels >= 2.6.25 are emulating the 2 needed rdhwr functions so it's safe to use rdhwr. This is better than what's currently in but it doesn't mean it works nicely Some tests needs to be done imho Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-10-01Revert "Get rid of _t suffix"Anthony Liguori
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 99a0949b720a0936da2052cb9a46db04ffc6db29. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01Get rid of _t suffixmalc
Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
2009-09-11Fix conditional compilation (MIPS host)Stefan Weil
Compilation for MIPS host (not part of official QEMU) checks __mips_isa_rev which is not always defined. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-24Unbreak large mem support by removing kqemuAnthony Liguori
kqemu introduces a number of restrictions on the i386 target. The worst is that it prevents large memory from working in the default build. Furthermore, kqemu is fundamentally flawed in a number of ways. It relies on the TSC as a time source which will not be reliable on a multiple processor system in userspace. Since most modern processors are multicore, this severely limits the utility of kqemu. kvm is a viable alternative for people looking to accelerate qemu and has the benefit of being supported by the upstream Linux kernel. If someone can implement work arounds to remove the restrictions introduced by kqemu, I'm happy to avoid and/or revert this patch. N.B. kqemu will still function in the 0.11 series but this patch removes it from the 0.12 series. Paul, please Ack or Nack this patch. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIANJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-17Userspace guest address offsettingPaul Brook
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: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-07-16Update to a hopefully more future proof FSF addressBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-09split out ioport related stuffs from vl.c into ioport.c.Isaku Yamahata
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-09QEMU: MCE: Add MCE simulation to qemu/tcgHuang Ying
- MCE features are initialized when VCPU is intialized according to CPUID. - A monitor command "mce" is added to inject a MCE. - A new interrupt mask: CPU_INTERRUPT_MCE is added to inject the MCE. aliguori: fix build for linux-user Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22Handle init/sipi in a main cpu exec loop. (v2)Gleb Natapov
This should fix compilation problem in case of CONFIG_USER_ONLY. Currently INIT/SIPI is handled in the context of CPU that sends IPI. This patch changes this to handle them like all other events in a main cpu exec loop. When KVM will gain thread per vcpu capability it will be much more clear to handle those event by cpu thread itself and not modify one cpu's state from the context of the other. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-16provide cpu_index to env mappingGlauber Costa
There are some people interested in, given a cpu number, pick its CPUState. KVM is an example, although not yet in tree. This patch provides a way of doing that. Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-16linux-user: implemented ELF coredump support for ARM targetMika Westerberg
When target process is killed with signal (such signal that should dump core) a coredump file is created. This file is similar than coredump generated by Linux (there are few exceptions though). Riku Voipio: added support for rlimit Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2009-05-22kvm: Rework dirty bitmap synchronizationJan Kiszka
Extend kvm_physical_sync_dirty_bitmap() so that is can sync across multiple slots. Useful for updating the whole dirty log during migration. Moreover, properly pass down errors the whole call chain. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-19Hardware convenience libraryPaul Brook
The only target dependency for most hardware is sizeof(target_phys_addr_t). Build these files into a convenience library, and use that instead of building for every target. Remove and poison various target specific macros to avoid bogus target dependencies creeping back in. Big/Little endian is not handled because devices should not know or care about this to start with. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-04-30Remove cpu_get_io_memory_{read,write}.Paul Brook
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-04-24qemu: per-arch cpu_has_work (Marcelo Tosatti)aliguori
Blue Swirl: fix Sparc32 breakage Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7238 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-19kqemu: merge CONFIG_KQEMU and USE_KQEMUblueswir1
Basically a recursive ":%s/USE_KQEMU/CONFIG_KQEMU/g". Signed-off-by: Paul Bolle <pebolle@tiscali.nl> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7189 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-11Implement dynamic guest ram allocation.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7088 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-11Remove code phys_ram_base uses.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7085 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-09Cleanup SPARC/TCX framebuffer allocation.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7059 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07Use a dedicated function to request exit from execution loopaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6762 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11qemu: add cpu_unregister_io_memory and make io mem table index dynamic ↵aliguori
(Marcelo Tosatti) So drivers can clear their mem io table entries on exit back to unassigned state. Also make the io mem index allocation dynamic. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6601 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-01Replace noreturn with QEMU_NORETURNmalc
Thanks to Robert Riebisch for analysis [1] [1] http://marc.info/?l=qemu-devel&m=123352293319271&w=2 git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6492 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-26Log reset events (Jan Kiszka)aliguori
Original idea&code by Kevin Wolf, split-up in two patches and added more archs. This patch introduces a flag to log CPU resets. Useful for tracing unexpected resets (such as those triggered by x86 triple faults). Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6452 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-25Massage PPC version of cpu_get_real_ticks a littlemalc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6435 c046a42c-6fe2-441c-8c8c-71466251a162
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