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QEMU With E2K User Support
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9db2efd95e
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Alex Williamson 9db2efd95e x86: Clear MTRRs on vCPU reset 
The SDM specifies (June 2014 Vol3 11.11.5):

    On a hardware reset, the P6 and more recent processors clear the
    valid flags in variable-range MTRRs and clear the E flag in the
    IA32_MTRR_DEF_TYPE MSR to disable all MTRRs. All other bits in the
    MTRRs are undefined.

We currently do none of that, so whatever MTRR settings you had prior
to reset is what you have after reset.  Usually this doesn't matter
because KVM often ignores the guest mappings and uses write-back
anyway.  However, if you have an assigned device and an IOMMU that
allows NoSnoop for that device, KVM defers to the guest memory
mappings which are now stale after reset.  The result is that OVMF
rebooting on such a configuration takes a full minute to LZMA
decompress the firmware volume, a process that is nearly instant on
the initial boot.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-25 18:53:42 +02:00
audio audio: Drop superfluous conditionals around g_free() 2014-06-13 12:34:54 +02:00
backends SCSI changes that enable sending vendor-specific commands via virtio-scsi. 2014-08-19 13:00:57 +01:00
block qcow2: fix new_blocks double-free in alloc_refcount_block() 2014-08-15 18:03:26 +01:00
bsd-user bsd-user: Fix syscall format, add strace support for more syscalls 2014-06-11 00:25:06 +01:00
default-configs pc: implement pc-dimm device abstraction 2014-06-19 16:41:47 +03:00
disas disas/libvixl: prepend the include path of libvixl header files 2014-07-08 12:45:57 +01:00
docs SCSI changes that enable sending vendor-specific commands via virtio-scsi. 2014-08-19 13:00:57 +01:00
dtc@bc895d6d09
fpu fpu: softfloat: drop INLINE macro 2014-06-23 11:00:12 -04:00
fsdev virtfs-proxy-helper: fix call to accept 2014-04-28 08:55:32 +04:00
gdb-xml
hw spapr: Add support for new NMI interface 2014-08-25 13:25:16 +02:00
include cpus: Define callback for QEMU "nmi" command 2014-08-25 13:25:16 +02:00
libcacard vscclient: Add required headers to fix build on FreeBSD 2014-06-24 20:01:24 +04:00
libdecnumber libdecnumber: Fix decNumberSetBCD 2014-06-16 13:24:29 +02:00
linux-headers linux-headers: update linux headers to kvm/next 2014-06-16 13:24:41 +02:00
linux-user linux-user: use TARGET_SA_ONSTACK in get_sigframe 2014-07-15 17:08:41 +03:00
net tap-bsd: implement a FreeBSD only version of tap_open 2014-08-01 15:57:48 +00:00
pc-bios pc-bios/s390-ccw: update binary 2014-07-08 15:08:03 +02:00
pixman@97336fad32
po po: Add Chinese translation 2014-08-09 00:06:41 +04:00
qapi QMP: Add support for Archipelago 2014-08-15 15:07:14 +02:00
qga channel-posix: using qemu_set_nonblock() instead of fcntl(O_NONBLOCK) 2014-08-15 18:03:13 +01:00
qobject json-lexer: fix escaped backslash in single-quoted string 2014-06-23 11:01:24 -04:00
qom qom: object: move unparenting to the child property's release callback 2014-08-17 23:25:24 +02:00
roms pseries: Update SLOF firmware image to qemu-slof-20140630 2014-07-08 12:10:36 +02:00
scripts trace: teach lttng backend to use format strings 2014-08-12 14:26:12 +01:00
slirp Increase maximum number of session of the internal TFTP server. 2014-06-24 20:01:24 +04:00
stubs monitor: fix use after free 2014-08-18 14:39:10 -04:00
sysconfigs/target
target-alpha trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-arm arm: cortex-a9: Fix cache-line size and associativity 2014-08-19 19:02:40 +01:00
target-cris trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-i386 x86: Clear MTRRs on vCPU reset 2014-08-25 18:53:42 +02:00
target-lm32 trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-m68k trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-microblaze trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-mips trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-moxie softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
target-openrisc trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-ppc spapr: Add support for new NMI interface 2014-08-25 13:25:16 +02:00
target-s390x trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-sh4 trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-sparc target-sparc64: implement Short Floating-Point Store Instructions 2014-08-17 13:24:27 +01:00
target-unicore32 trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
target-xtensa trace: [tcg] Include TCG-tracing header on all targets 2014-08-12 14:26:12 +01:00
tcg tcg/ppc: Fix support for 64-bit PPC MacOSX hosts 2014-06-29 11:38:50 +01:00
tests image-fuzzer: Reduce number of generator functions in __init__ 2014-08-15 18:03:14 +01:00
trace trace: [tcg] Generate TCG tracing routines 2014-08-12 14:26:12 +01:00
ui spice: don't use 'Yoda conditions' 2014-08-15 18:54:07 +04:00
util trivial patches for 2014-08-15 2014-08-15 18:44:48 +01:00
.exrc
.gitignore trace: [tcg] Generate TCG tracing routines 2014-08-12 14:26:12 +01:00
.gitmodules PPC: Add u-boot firmware for e500 2014-06-16 13:24:35 +02:00
.mailmap
.travis.yml trace: Multi-backend tracing 2014-06-09 15:43:40 +02:00
aio-posix.c AioContext: speed up aio_notify 2014-07-09 15:50:11 +02:00
aio-win32.c block: drop aio functions that operate on the main AioContext 2014-07-09 15:50:11 +02:00
arch_init.c Show length mismatch error is hex 2014-08-09 00:06:32 +04:00
async.c AioContext: speed up aio_notify 2014-07-09 15:50:11 +02:00
balloon.c qapi event: convert BALLOON_CHANGE 2014-06-23 11:12:28 -04:00
block-migration.c block: Use bdrv_nb_sectors() where sectors, not bytes are wanted 2014-08-15 15:07:13 +02:00
block.c block: Catch !bs->drv in bdrv_check() 2014-08-15 15:07:16 +02:00
blockdev-nbd.c nbd: Shutdown socket before closing. 2014-06-30 12:50:12 +02:00
blockdev.c block: add backing-file option to block-stream 2014-07-01 10:47:01 +02:00
blockjob.c block: prefer aio_poll to qemu_aio_wait 2014-07-09 15:50:11 +02:00
bt-host.c
bt-vhci.c
Changelog
CODING_STYLE CODING_STYLE: Section about conditional statement 2014-08-15 18:54:06 +04:00
configure Block patches 2014-08-15 14:49:50 +01:00
COPYING
COPYING.LIB
coroutine-gthread.c glib-compat.h: add new thread API emulation on top of pre-2.31 API 2014-06-10 07:44:01 +02:00
coroutine-sigaltstack.c
coroutine-ucontext.c
coroutine-win32.c coroutine-win32.c: Add noinline attribute to work around gcc bug 2014-06-26 14:08:14 +01:00
cpu-exec.c trace: add some tcg tracing support 2014-08-12 14:26:12 +01:00
cpus.c s390x: Migrate to new NMI interface 2014-08-25 13:25:16 +02:00
cputlb.c softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
device_tree.c
device-hotplug.c blockdev: Remove unused DriveInfo reference count 2014-06-16 17:23:19 +08:00
disas.c monitor: QEMU Monitor Instruction Disassembly Incorrect for PowerPC LE Mode 2014-06-16 13:24:26 +02:00
dma-helpers.c dma-helpers: Fix too long qiov 2014-07-14 12:03:21 +02:00
dump.c dump.c: Fix memory leak issue in cleanup processing for dump_init() 2014-08-18 14:39:10 -04:00
exec.c SCSI changes that enable sending vendor-specific commands via virtio-scsi. 2014-08-19 13:00:57 +01:00
gdbstub.c
HACKING
hmp-commands.hx cpus: Define callback for QEMU "nmi" command 2014-08-25 13:25:16 +02:00
hmp.c block: add backing-file option to block-stream 2014-07-01 10:47:01 +02:00
hmp.h hmp: add info memdev 2014-06-19 18:44:21 +03:00
iohandler.c iohandler.c: Properly initialize sigaction struct 2014-05-24 00:07:29 +04:00
ioport.c memory: convert memory_region_destroy to object_unparent 2014-08-18 12:06:20 +02:00
iothread.c AioContext: do not rely on aio_poll(ctx, true) result to end a loop 2014-07-14 12:03:20 +02:00
kvm-all.c kvm: run cpu state synchronization on target vcpu thread 2014-08-20 15:21:00 +02:00
kvm-stub.c Add kvm_eventfds_enabled function 2014-06-19 16:41:54 +03:00
LICENSE
main-loop.c block: drop aio functions that operate on the main AioContext 2014-07-09 15:50:11 +02:00
MAINTAINERS block: Support Archipelago as a QEMU block backend 2014-08-15 15:07:14 +02:00
Makefile Tracing pull request 2014-08-15 16:37:17 +01:00
Makefile.objs Tracing pull request 2014-08-15 16:37:17 +01:00
Makefile.target trace: [tcg] Define TCG tracing helper routines 2014-08-12 14:26:12 +01:00
memory_mapping.c
memory.c Revert "memory: Use canonical path component as the name" 2014-08-19 20:05:46 +01:00
migration-exec.c
migration-fd.c
migration-rdma.c rdma: bug fixes 2014-06-23 19:09:50 +02:00
migration-tcp.c Coverity: Fix failure path for qemu_accept in migration 2014-05-05 22:15:03 +02:00
migration-unix.c Coverity: Fix failure path for qemu_accept in migration 2014-05-05 22:15:03 +02:00
migration.c migration: catch unknown flags in ram_load 2014-06-16 04:55:27 +02:00
module-common.c
monitor.c monitor: fix use after free 2014-08-18 14:39:10 -04:00
nbd.c nbd: Handle NBD_OPT_LIST option. 2014-06-30 12:50:17 +02:00
numa.c numa: show hex number in error message for consistency and prefix them with 0x 2014-08-14 13:22:07 +02:00
os-posix.c
os-win32.c
page_cache.c migration: Plug memory leak in migrate-set-cache-size command 2014-06-10 19:54:43 +04:00
qapi-schema.json cpus: Define callback for QEMU "nmi" command 2014-08-25 13:25:16 +02:00
qdev-monitor.c trivial patches for 2014-08-15 2014-08-15 18:44:48 +01:00
qdict-test-data.txt
qemu-bridge-helper.c qemu-bridge-helper: Fix fd leak in main() 2014-06-27 10:39:10 +02:00
qemu-char.c Block pull request 2014-08-18 11:59:27 +01:00
qemu-coroutine-io.c
qemu-coroutine-lock.c
qemu-coroutine-sleep.c
qemu-coroutine.c coroutine: make pool size dynamic 2014-08-15 15:07:14 +02:00
qemu-doc.texi doc: slirp supports ICMP echo if enabled in Linux 2014-07-18 17:45:37 +04:00
qemu-file.c Make qemu_peek_buffer loop until it gets it's data 2014-05-05 22:15:03 +02:00
qemu-img-cmds.hx
qemu-img.c Block patches 2014-08-15 14:49:50 +01:00
qemu-img.texi Fix nocow typos in manpage 2014-07-07 09:15:29 +02:00
qemu-io-cmds.c block: prefer aio_poll to qemu_aio_wait 2014-07-09 15:50:11 +02:00
qemu-io.c trace: Multi-backend tracing 2014-06-09 15:43:40 +02:00
qemu-log.c
qemu-nbd.c nbd: Shutdown socket before closing. 2014-06-30 12:50:12 +02:00
qemu-nbd.texi nbd: Miscellaneous typo fixes. 2014-05-24 00:07:29 +04:00
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx Block pull request 2014-08-18 11:59:27 +01:00
qemu-seccomp.c seccomp: add shmctl(), mlock(), and munlock() to the syscall whitelist 2014-04-25 14:52:03 -03:00
qemu-tech.texi
qemu-timer.c vl.c: remove init_clocks call from main 2014-05-09 20:57:32 +02:00
qemu.nsi
qemu.sasl
qmp-commands.hx cpus: Define callback for QEMU "nmi" command 2014-08-25 13:25:16 +02:00
qmp.c qmp: hide "hotplugged" device property from device-list-properties 2014-08-15 15:07:13 +02:00
qtest.c icount: Add QemuOpts for icount 2014-08-06 17:53:07 +02:00
README
rules.mak build-sys: introduce install-prog macro to install&strip binaries and use it 2014-06-24 20:01:24 +04:00
savevm.c savevm: check vmsd for migratability status 2014-06-25 23:54:57 +02:00
softmmu_template.h softmmu: move softmmu_template.h out of include/ 2014-06-05 16:10:33 +02:00
spice-qemu-char.c qemu-char: introduce qemu_chr_alloc 2014-06-23 11:12:28 -04:00
tcg-runtime.c tcg: Push tcg-runtime routines into exec/helper-* 2014-05-28 09:33:54 -07:00
tci.c Merge remote-tracking branch 'remotes/bonzini/softmmu-smap' into staging 2014-06-05 21:06:14 +01:00
thread-pool.c thread-pool: avoid deadlock in nested aio_poll() calls 2014-08-15 15:07:14 +02:00
thunk.c
tpm.c
trace-events virtio-rng: add some trace events 2014-08-12 14:29:55 +01:00
translate-all.c trace: add some tcg tracing support 2014-08-12 14:26:12 +01:00
translate-all.h
user-exec.c softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
VERSION Open 2.2 development tree 2014-08-01 18:30:08 +01:00
version.rc
vl.c vl: free err 2014-08-15 18:54:07 +04:00
vmstate.c vmstate: Add preallocation for migrating arrays (VMS_ALLOC flag) 2014-06-27 13:48:27 +02:00
xbzrle.c
xen-common-stub.c xen: factor out common functions 2014-05-07 16:16:43 +00:00
xen-common.c xen: factor out common functions 2014-05-07 16:16:43 +00:00
xen-hvm-stub.c xen-hvm: Fix xen_hvm_init() to adjust pc memory layout 2014-06-23 17:50:04 +03:00
xen-hvm.c xen: fix usage of ENODATA 2014-08-01 15:57:28 +00:00
xen-mapcache.c xen: build on ARM 2014-07-07 10:37:40 +00:00

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team