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2014-03-11Merge remote-tracking branch ↵Peter Maydell
'remotes/pmaydell/tags/pull-target-arm-20140310' into staging target-arm queue: * implement WFE as yield (improves performance with emulated SMP) * fixes to avoid undefined behaviour shifting left into sign bit * libvixl format string fixes for 32 bit hosts * fix build error when intptr_t and tcg_target_long are different sizes (eg x32) * implement PMCCNTR register * fix incorrect setting of E bit in CPSR (broke booting under KVM on ARM) # gpg: Signature made Mon 10 Mar 2014 15:05:25 GMT using RSA key ID 14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" * remotes/pmaydell/tags/pull-target-arm-20140310: target-arm: Implement WFE as a yield operation hw/arm/musicpal: Avoid shifting left into sign bit hw/ssi/xilinx_spips.c: Avoid shifting left into sign bit hw/arm/omap1.c: Avoid shifting left into sign bit pxa2xx: Don't shift into sign bit libvixl: Fix format strings for several int64_t values target-arm: Fix intptr_t vs tcg_target_long target-arm: Implements the ARM PMCCNTR register target-arm: Fix incorrect setting of E bit in CPSR Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-10target-arm: Implement WFE as a yield operationPeter Maydell
Implement WFE to yield our timeslice to the next CPU. This avoids slowdowns in multicore configurations caused by one core busy-waiting on a spinlock which can't possibly be unlocked until the other core has an opportunity to run. This speeds up my test case A15 dual-core boot by a factor of three (though it is still four or five times slower than a single-core boot). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1393339545-22111-1-git-send-email-peter.maydell@linaro.org Reviewed-by: Richard Henderson <rth@twiddle.net> Tested-by: Rob Herring <rob.herring@linaro.org>
2014-03-09memory_region_present: return false if address is not found in child ↵Igor Mammedov
MemoryRegion Windows XP shows COM2 port as non functional in "Device Manager" although no COM2 port backing device is present in QEMU. This regression is really due to 3bb28b7208b349e7a1b326e3c6ef9efac1d462bf? memory: Provide separate handling of unassigned io ports accesses That is caused by the fact that QEMU reports to OSPM that device is present by setting 5th bit in PII4XPM.pci_conf[0x67] register when COM2 doesn't exist. It happens due to memory_region_present(io_as, 0x2f8) returning false positive since 0x2f8 address eventually translates into catchall io_as address space. Fix memory_region_present(parent, addr) by returning true only if addr maps into a MemoryRegion within parent (excluding parent itself), to match its doc comment. While at it fix copy/paste error in memory_region_present() doc comment. Note: this is a temporary hack: we really need better handling for unassigned regions, we should avoid fallback regions since they are bad for performance (breaking radix tree assumption that the data structure is sparsely populated); for memory we need to fix this to implement PCI master abort properly, anyway. Cc: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-02-11exec: Make cpu_physical_memory_write_rom input an ASEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make stb_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make stw_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make stl_phys_notdirty input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make stl_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make stq_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make lduw_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make ldq/ldub_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make ldl_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11cpu: Add per-cpu address spaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11memory: Add MemoryListener to typedefs.hEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make iotlb_to_region input an ASEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make tb_invalidate_phys_addr input an ASEdgar E. Iglesias
No functional change. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-08Merge remote-tracking branch ↵Peter Maydell
'remotes/juanquintela/tags/migration/20140204-1' into staging migration/next for 20140204 # gpg: Signature made Tue 04 Feb 2014 15:52:00 GMT using RSA key ID 5872D723 # gpg: Can't check signature: public key not found * remotes/juanquintela/tags/migration/20140204-1: Don't abort on memory allocation error Don't abort on out of memory when creating page cache XBZRLE cache size should not be larger than guest memory size migration:fix free XBZRLE decoded_buf wrong Add check for cache size smaller than page size Set xbzrle buffers to NULL after freeing them to avoid double free errors exec: fix ram_list dirty map optimization vmstate: Make VMSTATE_STRUCT_POINTER take type, not ptr-to-type Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-05Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-02-02' ↵Peter Maydell
into staging trivial patches for 2014-02-02 # gpg: Signature made Sun 02 Feb 2014 16:11:37 GMT using RSA key ID 74F0C838 # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@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: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5 # Subkey fingerprint: E190 8639 3B10 B51B AC2C 8B73 5253 C5AD 74F0 C838 * remotes/mjt/tags/trivial-patches-2014-02-02: tests/.gitignore: Ignore tests/check-qom-interface hw/ppc: Remove unused defines readline: Add missing GCC_FMT_ATTR tcg/s390: Remove sigill_handler i386: Add missing include file for QEMU_PACKED osdep: drop unused #include "trace.h" qemu 1.7.0 does not build on NetBSD Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-04exec: fix ram_list dirty map optimizationAlexey Kardashevskiy
The ae2810c4bb3b383176e8e1b33931b16c01483aab patch introduced optimization for ram_list.dirty_memory update. However it can only work correctly if hpratio is 1 as the @bitmap parameter stores 1 bits per system page size (may vary, 4K or 64K on PPC64) and ram_list.dirty_memory stores 1 bit per TARGET_PAGE_SIZE (which is hardcoded to 4K). This fixes hpratio!=1 case to fall back to the slow path. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-02-01Merge remote-tracking branch ↵Peter Maydell
'remotes/awilliam/tags/vfio-pci-for-qemu-20140128.0' into staging vfio-pci updates include: - Destroy MemoryRegions on device teardown - Print warnings around PCI option ROM failures - Skip bogus mappings from 64bit BAR sizing - Act on DMA mapping failures - Fix alignment to avoid MSI-X table mapping - Fix debug macro typo # gpg: Signature made Tue 28 Jan 2014 15:27:47 GMT using RSA key ID 3BB08B22 # gpg: Can't check signature: public key not found * remotes/awilliam/tags/vfio-pci-for-qemu-20140128.0: vfio: correct debug macro typo vfio: fix mapping of MSIX bar kvm: initialize qemu_host_page_size vfio-pci: Fail initfn on DMA mapping errors vfio: Filter out bogus mappings vfio: Do not reattempt a failed rom read vfio: warn if host device rom can't be read vfio: Destroy memory regions Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-01qemu 1.7.0 does not build on NetBSDMartin Husemann
Do not rely on int8_t (and friends) not being preprocessor symbols (or symbols expanding to themselves). On NetBSD (for example) the glue(u, SDATA_TYPE) results in u__int8_t, which is undefined. There is no way to stop cpp expanding inner macros, so just add the few lines explicitly and get rid of the magic. Signed-off-by: Martin Husemann <martin@NetBSD.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-01-17kvm: initialize qemu_host_page_sizeAlexey Kardashevskiy
There is a HOST_PAGE_ALIGN macro which makes sense for KVM accelerator but it uses qemu_host_page_size/qemu_host_page_mask which initialized for TCG only. This moves qemu_host_page_size/qemu_host_page_mask initialization from TCG's page_init() and adds a call for it from kvm_init(). Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-01-15exec: Exclude non portable function for MinGWStefan Weil
cpu_physical_memory_set_dirty_lebitmap calls getpageaddr and ffsl which are unavailable for MinGW. As the function is unused for MinGW, it can simply be excluded from compilation. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-01-13memory: syncronize kvm bitmap using bitmaps operationsJuan Quintela
If bitmaps are aligned properly, use bitmap operations. If they are not, just use old bit at a time code. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: move bitmap synchronization to its own functionJuan Quintela
We want to have all the functions that handle directly the dirty bitmap near. We will change it later. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: split cpu_physical_memory_* functions to its own includeJuan Quintela
All the functions that use ram_addr_t should be here. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: make cpu_physical_memory_reset_dirty() take a length parameterJuan Quintela
We have an end parameter in all the callers, and this make it coherent with the rest of cpu_physical_memory_* functions, that also take a length parameter. Once here, move the start/end calculation to tlb_reset_dirty_range_all() as we don't need it here anymore. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: s/dirty/clean/ in cpu_physical_memory_is_dirty()Juan Quintela
All uses except one really want the other meaning. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: cpu_physical_memory_clear_dirty_range() now uses bitmap operationsJuan Quintela
We were clearing a range of bits, so use bitmap_clear(). Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: cpu_physical_memory_set_dirty_range() now uses bitmap operationsJuan Quintela
We were setting a range of bits, so use bitmap_set(). Note: xen has always been wrong, and should have used start instead of addr from the beginning. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: use find_next_bit() to find dirty bitsJuan Quintela
This operation is way faster than doing it bit by bit. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: s/mask/clear/ cpu_physical_memory_mask_dirty_rangeJuan Quintela
Now all functions use the same wording that bitops/bitmap operations Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: cpu_physical_memory_get_dirty() is used as returning a boolJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: make cpu_physical_memory_get_dirty() the main functionJuan Quintela
And make cpu_physical_memory_get_dirty_flag() to use it. It used to be the other way around. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: unfold cpu_physical_memory_set_dirty_flag()Juan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: unfold cpu_physical_memory_set_dirty() in its only userJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: unfold cpu_physical_memory_clear_dirty_flag() in its only userJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: split dirty bitmap into threeJuan Quintela
After all the previous patches, spliting the bitmap gets direct. Note: For some reason, I have to move DIRTY_MEMORY_* definitions to the beginning of memory.h to make compilation work. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: cpu_physical_memory_clear_dirty_flag() result is never usedJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: make sure that client is always inside rangeJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: use bit 2 for migrationJuan Quintela
For historical reasons it was bit 3. Once there, create a constant to know the number of clients. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: cpu_physical_memory_mask_dirty_range() always clears a single flagJuan Quintela
Document it Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: cpu_physical_memory_set_dirty_range() always dirty all flagsJuan Quintela
So remove the flag argument and do it directly. After this change, there is nothing else using cpu_physical_memory_set_dirty_flags() so remove it. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: set single dirty flags when possibleJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: all users of cpu_physical_memory_get_dirty used only one flagJuan Quintela
So cpu_physical_memory_get_dirty_flags is not needed anymore Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: make cpu_physical_memory_is_dirty return boolJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13exec: create function to get a single dirty bitJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2014-01-13memory: create function to set a single dirty bitJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2014-01-13memory: cpu_physical_memory_set_dirty_flags() result is never usedJuan Quintela
So return void. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-12-20roms: Flush icache when writing roms to guest memoryAlexander Graf
We use the rom infrastructure to write firmware and/or initial kernel blobs into guest address space. So we're basically emulating the cache off phase on very early system bootup. That phase is usually responsible for clearing the instruction cache for anything it writes into cachable memory, to ensure that after reboot we don't happen to execute stale bits from the instruction cache. So we need to invalidate the icache every time we write a rom into guest address space. We do not need to do this for every DMA since the guest expects it has to flush the icache manually in that case. This fixes random reboot issues on e5500 (booke ppc) for me. Signed-off-by: Alexander Graf <agraf@suse.de>
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