Commit Graph

180 Commits

Author SHA1 Message Date
Peter Maydell c8f930c0ee cpu-all.h: Remove unnecessary target-specific ifdef for CPU_QuadU
CPU_QuadU isn't used on all targets, but there's no harm in defining the
typedef anyway. It only needs to be guarded by CONFIG_SOFTFLOAT, because
softfloat-native doesn't have a float128 type. This avoids the need for
every new target which uses CPU_QuadU to add itself to an #ifdef in
what ought to be target-agnostic code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-04 21:14:28 +02:00
Ulrich Hecht 490f4edcdf s390x: enable CPU_QuadU
S390x uses the QuadU type, so let's enable it.

Signed-off-by: Ulrich Hecht <uli@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-04 00:34:12 +02:00
Huang Ying cd19cfa236 Add qemu_ram_remap
qemu_ram_remap() unmaps the specified RAM pages, then re-maps these
pages again.  This is used by KVM HWPoison support to clear HWPoisoned
page tables across guest rebooting, so that a new page may be
allocated later to recover the memory error.

[ Jan: style fixlets, WIN32 fix ]

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-03-15 01:19:06 -03:00
Jan Kiszka 2fa11da0c3 x86: Small cleanups of MCE helpers
Fix some code style issues, use proper headers, and align to cpu_x86
naming scheme. No functional changes.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
CC: Huang Ying <ying.huang@intel.com>
CC: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
CC: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-03-15 01:19:05 -03:00
Anthony PERARD e5896b12e2 Introduce log_start/log_stop in CPUPhysMemoryClient
In order to use log_start/log_stop with Xen as well in the vga code,
this two operations have been put in CPUPhysMemoryClient.

The two new functions cpu_physical_log_start,cpu_physical_log_stop are
used in hw/vga.c and replace the kvm_log_start/stop. With this, vga does
no longer depends on kvm header.

[ Jan: rebasing and style fixlets ]

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-02-14 12:39:47 -02:00
Jan Kiszka f5c848eed7 x86: Optionally dump code bytes on cpu_dump_state
Introduce the cpu_dump_state flag CPU_DUMP_CODE and implement it for
x86. This writes out the code bytes around the current instruction
pointer. Make use of this feature in KVM to help debugging fatal vm
exits.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-23 02:27:20 -02:00
Jin Dongming 31ce5e0c49 Add "broadcast" option for mce command
When the following test case is injected with mce command, maybe user could not
get the expected result.
    DATA
               command cpu bank status             mcg_status  addr   misc
        (qemu) mce     1   1    0xbd00000000000000 0x05        0x1234 0x8c

    Expected Result
           panic type: "Fatal Machine check"

That is because each mce command can only inject the given cpu and could not
inject mce interrupt to other cpus. So user will get the following result:
    panic type: "Fatal machine check on current CPU"

"broadcast" option is used for injecting dummy data into other cpus. Injecting
mce with this option the expected result could be gotten.

Usage:
    Broadcast[on]
           command broadcast cpu bank status             mcg_status  addr   misc
    (qemu) mce     -b        1   1    0xbd00000000000000 0x05        0x1234 0x8c

    Broadcast[off]
           command cpu bank status             mcg_status  addr   misc
    (qemu) mce     1   1    0xbd00000000000000 0x05        0x1234 0x8c

Signed-off-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-21 14:05:22 -02:00
Stefan Weil 9a78eead0c target-xxx: Use fprintf_function (format checking)
fprintf_function uses format checking with GCC_FMT_ATTR.

Format errors were fixed in
* target-i386/helper.c
* target-mips/translate.c
* target-ppc/translate.c

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-30 08:01:59 +00:00
Stefan Weil 055403b2a7 exec: Use fprintf_function for dump_exec_info (format checking)
fprintf_function uses format checking with GCC_FMT_ATTR.

It is declared in qemu-common.h and used in cpu-all.h
(which is included from cpu.h), so qemu-common.h must
be included earlier. Some redundant include statements
for standard include files were removed.

Fix also two format errors (ptrdiff_t needs %td).

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-30 08:01:59 +00:00
Stefan Weil 2c80e42395 Replace remaining gcc format attributes by macro GCC_FMT_ATTR (format checking)
Replace the remaining format attribute printf by macro
GCC_FMT_ATTR which uses gnu_printf (if supported).

v2
* Removal of dyngen specific code is now done in a separate patch.
* Handle attribute in new ui/spice-display.c, too.

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-22 17:11:33 +00:00
Aurelien Jarno 18e9ea8a3f linux-user: fix build on hosts not using guest base
Commit 68a1c81686 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.
2010-07-30 21:09:10 +02:00
Alex Williamson 04b1665372 qemu_ram_free: Implement it
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>
2010-07-06 10:36:28 -05:00
Alex Williamson cc9e98cb8f ramblocks: Make use of DeviceState pointer and BusInfo.get_dev_path
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>
2010-07-06 10:36:28 -05:00
Alex Williamson d17b5288d9 Remove uses of ram.last_offset (aka last_ram_offset)
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>
2010-07-06 10:36:27 -05:00
Alex Williamson f471a17e9d ram_blocks: Convert to a QLIST
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>
2010-06-14 11:12:53 -05:00
Paul Brook 68a1c81686 Pre-allocate guest address space
Allow pre-allocation of the guest virtual address space in usermode emulation.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-05-29 02:27:35 +01:00
Marcelo Tosatti 3ae9501c5b add cpu_is_stopped helper
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-05-11 14:02:22 -03:00
Marcelo Tosatti e82bcec25f port qemu-kvm's on_vcpu code
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>
2010-05-11 14:02:22 -03:00
Paul Brook 2e9a5713f0 Remove PAGE_RESERVED
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>
2010-05-05 16:32:59 +01:00
Richard Henderson 2d8ebcf94e Fix --enable-profiler compilation.
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>
2010-04-17 16:25:10 +00:00
Yoshiaki Tamura ca39b46e18 Introduce wrapper functions to access phys_ram_dirty.
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>
2010-04-08 11:11:21 +02:00
Blue Swirl 29e922b61f Compile qemu-timer only once
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>
2010-03-29 19:24:00 +00:00
Blue Swirl d2053c3cca Move cpu_exec_init_all() declaration to qemu-common.h
Let cpu_exec_init_all() be called from non-CPU code.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-29 19:23:48 +00:00
Blue Swirl 6842a08ee0 Compile pci only once
Move coalesced_mmio declarations to a more accessible location.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-21 19:47:13 +00:00
Paolo Bonzini db1a49726c split out qemu-timer.c
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-17 11:16:15 -05:00
Paul Brook b480d9b74d Fix usermode virtual address type
Usermode virtual addresses are abi_ulong, not target_ulong.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12 23:25:52 +00:00
Paul Brook 4fcc562bff Remove cpu_get_phys_page_debug from userspace emulation
cpu_get_phys_page_debug makes no sense for userspace emulation, so remove it.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12 18:34:25 +00:00
Paul Brook b3755a915e Disable phsyical memory handling in userspace emulation.
Code to handle physical memory access is not meaningful in usrmode emulation,
so disable it.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12 18:34:25 +00:00
Richard Henderson 5cd2c5b6ad Implement multi-level page tables.
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>
2010-03-12 16:31:09 +00:00
Richard Henderson b9f83121a1 Use TARGET_VIRT_ADDR_SPACE_BITS in h2g_valid.
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>
2010-03-12 16:28:47 +00:00
Marcelo Tosatti c902760fb2 Add option to use file backed guest memory
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>
2010-03-04 00:28:47 -03:00
Paul Brook 35bed8ee91 Move ioport.h out of cpu-all.h
Only include ioport.h where it is actually needed.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-01 03:29:21 +00:00
Sheng Yang 62a2744ca0 kvm: Flush coalesced MMIO buffer periodly
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>
2010-02-03 19:47:33 -02:00
Aurelien Jarno 9706c06d9c cpu-all.h: fix cpu_get_real_ticks() #ifdef
Reported-by: Hervé Poussineau <hpoussin@reactos.org>

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-20 21:18:57 +01:00
Arnaud Patard fea0ac23c7 cpu-all.h: fix cpu_get_real_ticks on mips host
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>
2009-11-24 19:51:13 +01:00
Anthony Liguori c227f0995e Revert "Get rid of _t suffix"
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 99a0949b72.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01 16:12:16 -05:00
malc 99a0949b72 Get rid of _t suffix
Some not so obvious bits, slirp and Xen were left alone for the time
being.

Signed-off-by: malc <av1474@comtv.ru>
2009-10-01 22:45:02 +04:00
Stefan Weil aeec26d348 Fix conditional compilation (MIPS host)
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>
2009-09-11 10:19:34 -05:00
Anthony Liguori 4a1418e07b Unbreak large mem support by removing kqemu
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>
2009-08-24 08:02:55 -05:00
Juan Quintela e2542fe2bc rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIAN
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 14:09:21 -05:00
Paul Brook 379f6698d7 Userspace guest address offsetting
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>
2009-07-17 13:12:41 +01:00
Blue Swirl 8167ee8839 Update to a hopefully more future proof FSF address
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-16 20:47:01 +00:00
Isaku Yamahata 3299397760 split out ioport related stuffs from vl.c into ioport.c.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-09 16:06:38 -05:00
Huang Ying 79c4f6b080 QEMU: MCE: Add MCE simulation to qemu/tcg
- 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>
2009-07-09 16:04:53 -05:00
Gleb Natapov b09ea7d55c Handle init/sipi in a main cpu exec loop. (v2)
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>
2009-06-22 10:15:28 -05:00
Glauber Costa 950f147249 provide cpu_index to env mapping
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>
2009-06-16 15:36:47 -05:00
Mika Westerberg edf8e2af14 linux-user: implemented ELF coredump support for ARM target
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>
2009-06-16 16:56:28 +03:00
Jan Kiszka 151f7749f2 kvm: Rework dirty bitmap synchronization
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>
2009-05-22 10:50:33 -05:00
Paul Brook 1ad2134f91 Hardware convenience library
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>
2009-05-19 16:17:58 +01:00
Paul Brook 0b4e6e3e78 Remove cpu_get_io_memory_{read,write}.
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-04-30 18:39:07 +01:00