Some downstream distributions of QEMU set host-phys-bits=on by
default. This worked very well for most use cases, because
phys-bits really didn't have huge consequences. The only
difference was on the CPUID data seen by guests, and on the
handling of reserved bits.
This changed in KVM commit 855feb673640 ("KVM: MMU: Add 5 level
EPT & Shadow page table support"). Now choosing a large
phys-bits value for a VM has bigger impact: it will make KVM use
5-level EPT even when it's not really necessary. This means
using the host phys-bits value may not be the best choice.
Management software could address this problem by manually
configuring phys-bits depending on the size of the VM and the
amount of MMIO address space required for hotplug. But this is
not trivial to implement.
However, there's another workaround that would work for most
cases: keep using the host phys-bits value, but only if it's
smaller than 48. This patch makes this possible by introducing a
new "-cpu" option: "host-phys-bits-limit". Management software
or users can make sure they will always use 4-level EPT using:
"host-phys-bits=on,host-phys-bits-limit=48".
This behavior is still not enabled by default because QEMU
doesn't enable host-phys-bits=on by default. But users,
management software, or downstream distributions may choose to
change their defaults using the new option.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20181211192527.13254-1-ehabkost@redhat.com>
[ehabkost: removed test code while some issues are addressed]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
MPX support is being phased out by Intel; GCC has dropped it, Linux
is also going to do that. Even though KVM will have special code
to support MPX after the kernel proper stops enabling it in XCR0,
we probably also want to deprecate that in a few years. As a start,
do not enable it by default for any named CPU model starting with
the 4.0 machine types; this include Skylake, Icelake and Cascadelake.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20181220121100.21554-1-pbonzini@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The missing functionality was added ~3 years ago with the Linux commit
46896c73c1a4 ("KVM: svm: add support for RDTSCP")
so reenable RDTSCP support on those CPU models.
Opteron_G2 - being family 15, model 6, doesn't have RDTSCP support
(the real hardware doesn't have it. K8 got RDTSCP support with the NPT
models, i.e., models >= 0x40).
Document the host's minimum required kernel version, while at it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Message-ID: <20181212200803.GG6653@zn.tnic>
[ehabkost: moved compat properties code to pc.c]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
It was found that QMP users of QEMU (e.g. libvirt) may need
HV_CPUID_ENLIGHTMENT_INFO.EAX/HV_CPUID_NESTED_FEATURES.EAX information. In
particular, 'hv_tlbflush' and 'hv_evmcs' enlightenments are only exposed in
HV_CPUID_ENLIGHTMENT_INFO.EAX.
HV_CPUID_NESTED_FEATURES.EAX is exposed for two reasons: convenience
(we don't need to export it from hyperv_handle_properties() and as
future-proof for Enlightened MSR-Bitmap, PV EPT invalidation and
direct virtual flush features.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20181126135958.20956-1-vkuznets@redhat.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This patch set contains a handful of Michael's CSR-related cleanups,
which should allow us to proceed with more outstanding bug fixes that
depend on them.
Additionally, there is a patch that turns on USB. This works for me
when the kernel has the appropriate drivers (which will soon be in
defconfig) and I pass
-device usb-ehci
-drive id=my_usb_disk,file=usbdisk.img,if=none,format=raw
-device usb-storage,drive=my_usb_disk
to QEMU.
-----BEGIN PGP SIGNATURE-----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=JmSx
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-3.2-part2' into staging
RISC-V Updates for 3.2, Part 2
This patch set contains a handful of Michael's CSR-related cleanups,
which should allow us to proceed with more outstanding bug fixes that
depend on them.
Additionally, there is a patch that turns on USB. This works for me
when the kernel has the appropriate drivers (which will soon be in
defconfig) and I pass
-device usb-ehci
-drive id=my_usb_disk,file=usbdisk.img,if=none,format=raw
-device usb-storage,drive=my_usb_disk
to QEMU.
# gpg: Signature made Fri 11 Jan 2019 18:05:02 GMT
# gpg: using RSA key EF4CA1502CCBAB41
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>"
# gpg: aka "Palmer Dabbelt <palmer@sifive.com>"
# 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: 00CE 76D1 8349 60DF CE88 6DF8 EF4C A150 2CCB AB41
* remotes/palmer/tags/riscv-for-master-3.2-part2:
default-configs: Enable USB support for RISC-V machines
RISC-V: Implement existential predicates for CSRs
RISC-V: Implement atomic mip/sip CSR updates
RISC-V: Implement modular CSR helper interface
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Travis CI jobs are failing because of test-qht-par when gprof is
enabled. Temporarily disable test-qht-par if gprof is enabled,
until we fix the bug.
-----BEGIN PGP SIGNATURE-----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=RksQ
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging
Work around test-qht-par + gprof issues
Travis CI jobs are failing because of test-qht-par when gprof is
enabled. Temporarily disable test-qht-par if gprof is enabled,
until we fix the bug.
# gpg: Signature made Fri 11 Jan 2019 18:23:29 GMT
# gpg: using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/machine-next-pull-request:
tests: Disable qht-bench parallel test when using gprof
configure: Let the TARGET_GPROF var use the regular 'y' for Yes
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This test is failing on the Travis CI [*] since some time now,
disable it until it get fixed.
[*] https://travis-ci.org/qemu/qemu/builds/474821674
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190103150951.17592-3-philmd@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
All other variables are set using 'y', which is what the rules.mak
functions expect to parse.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190103150951.17592-2-philmd@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
* esp bugfixes (Guenter)
* Windows build cleanup (Marc-André)
* checkpatch logic improvements (Paolo)
* coalesced range bugfix (Paolo)
* switch testsuite to TAP (Paolo)
* QTAILQ rewrite (Paolo)
* block/iscsi.c cancellation fixes (Stefan)
* improve selection of the default accelerator (Thomas)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJcOKyMAAoJEL/70l94x66DxKEH/1ho2Xl8ezxCecA6q3HqTgMT
NJ/ntdqQwVwekKOWzsywnM3/LkEDLH55MxbTeQ8M/Vb1seS8eROz24/gPTzvFrfR
n/d11rDV1EJfWe0H7nGLLFiRv0MSjxLpG9c3dlOKWhwOYHm25tr48PsdfVFP9Slz
BK3rwrMeDgArfptHAIsAXt2h1S0EzrG9pMwGDpErCDzziXxBhUESE0Iqfw8LsH1K
VjMn6rn7Ts1XKlxxwsm+BzHlTJghbj3tWPIfk+6uK2isP4iM3gFCoav3SG9XVXof
V9+vFyMxdtZKT/0HvajhUS4/1S/uGBNNchZRnCxXlpbueWc5ROtvarhM6Hb0eck=
=i8E5
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* HAX support for Linux hosts (Alejandro)
* esp bugfixes (Guenter)
* Windows build cleanup (Marc-André)
* checkpatch logic improvements (Paolo)
* coalesced range bugfix (Paolo)
* switch testsuite to TAP (Paolo)
* QTAILQ rewrite (Paolo)
* block/iscsi.c cancellation fixes (Stefan)
* improve selection of the default accelerator (Thomas)
# gpg: Signature made Fri 11 Jan 2019 14:47:40 GMT
# gpg: using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream: (34 commits)
avoid TABs in files that only contain a few
remove space-tab sequences
scripts: add script to convert multiline comments into 4-line format
hw/watchdog/wdt_i6300esb: remove a unnecessary comment
checkpatch: warn about qemu/queue.h head structs that are not typedef-ed
qemu/queue.h: simplify reverse access to QTAILQ
qemu/queue.h: reimplement QTAILQ without pointer-to-pointers
qemu/queue.h: remove Q_TAILQ_{HEAD,ENTRY}
qemu/queue.h: typedef QTAILQ heads
qemu/queue.h: leave head structs anonymous unless necessary
vfio: make vfio_address_spaces static
qemu/queue.h: do not access tqe_prev directly
test: replace gtester with a TAP driver
test: execute g_test_run when tests are skipped
qga: drop < Vista compatibility
build-sys: build with Vista API by default
build-sys: move windows defines in osdep.h header
build-sys: don't include windows.h, osdep.h does it
scsi: esp: Defer command completion until previous interrupts have been handled
esp-pci: Fix status register write erase control
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Most files that have TABs only contain a handful of them. Change
them to spaces so that we don't confuse people.
disas, standard-headers, linux-headers and libdecnumber are imported
from other projects and probably should be exempted from the check.
Outside those, after this patch the following files still contain both
8-space and TAB sequences at the beginning of the line. Many of them
have a majority of TABs, or were initially committed with all tabs.
bsd-user/i386/target_syscall.h
bsd-user/x86_64/target_syscall.h
crypto/aes.c
hw/audio/fmopl.c
hw/audio/fmopl.h
hw/block/tc58128.c
hw/display/cirrus_vga.c
hw/display/xenfb.c
hw/dma/etraxfs_dma.c
hw/intc/sh_intc.c
hw/misc/mst_fpga.c
hw/net/pcnet.c
hw/sh4/sh7750.c
hw/timer/m48t59.c
hw/timer/sh_timer.c
include/crypto/aes.h
include/disas/bfd.h
include/hw/sh4/sh.h
libdecnumber/decNumber.c
linux-headers/asm-generic/unistd.h
linux-headers/linux/kvm.h
linux-user/alpha/target_syscall.h
linux-user/arm/nwfpe/double_cpdo.c
linux-user/arm/nwfpe/fpa11_cpdt.c
linux-user/arm/nwfpe/fpa11_cprt.c
linux-user/arm/nwfpe/fpa11.h
linux-user/flat.h
linux-user/flatload.c
linux-user/i386/target_syscall.h
linux-user/ppc/target_syscall.h
linux-user/sparc/target_syscall.h
linux-user/syscall.c
linux-user/syscall_defs.h
linux-user/x86_64/target_syscall.h
slirp/cksum.c
slirp/if.c
slirp/ip.h
slirp/ip_icmp.c
slirp/ip_icmp.h
slirp/ip_input.c
slirp/ip_output.c
slirp/mbuf.c
slirp/misc.c
slirp/sbuf.c
slirp/socket.c
slirp/socket.h
slirp/tcp_input.c
slirp/tcpip.h
slirp/tcp_output.c
slirp/tcp_subr.c
slirp/tcp_timer.c
slirp/tftp.c
slirp/udp.c
slirp/udp.h
target/cris/cpu.h
target/cris/mmu.c
target/cris/op_helper.c
target/sh4/helper.c
target/sh4/op_helper.c
target/sh4/translate.c
tcg/sparc/tcg-target.inc.c
tests/tcg/cris/check_addo.c
tests/tcg/cris/check_moveq.c
tests/tcg/cris/check_swap.c
tests/tcg/multiarch/test-mmap.c
ui/vnc-enc-hextile-template.h
ui/vnc-enc-zywrle.h
util/envlist.c
util/readline.c
The following have only TABs:
bsd-user/i386/target_signal.h
bsd-user/sparc64/target_signal.h
bsd-user/sparc64/target_syscall.h
bsd-user/sparc/target_signal.h
bsd-user/sparc/target_syscall.h
bsd-user/x86_64/target_signal.h
crypto/desrfb.c
hw/audio/intel-hda-defs.h
hw/core/uboot_image.h
hw/sh4/sh7750_regnames.c
hw/sh4/sh7750_regs.h
include/hw/cris/etraxfs_dma.h
linux-user/alpha/termbits.h
linux-user/arm/nwfpe/fpopcode.h
linux-user/arm/nwfpe/fpsr.h
linux-user/arm/syscall_nr.h
linux-user/arm/target_signal.h
linux-user/cris/target_signal.h
linux-user/i386/target_signal.h
linux-user/linux_loop.h
linux-user/m68k/target_signal.h
linux-user/microblaze/target_signal.h
linux-user/mips64/target_signal.h
linux-user/mips/target_signal.h
linux-user/mips/target_syscall.h
linux-user/mips/termbits.h
linux-user/ppc/target_signal.h
linux-user/sh4/target_signal.h
linux-user/sh4/termbits.h
linux-user/sparc64/target_syscall.h
linux-user/sparc/target_signal.h
linux-user/x86_64/target_signal.h
linux-user/x86_64/termbits.h
pc-bios/optionrom/optionrom.h
slirp/mbuf.h
slirp/misc.h
slirp/sbuf.h
slirp/tcp.h
slirp/tcp_timer.h
slirp/tcp_var.h
target/i386/svm.h
target/sparc/asi.h
target/xtensa/core-dc232b/xtensa-modules.inc.c
target/xtensa/core-dc233c/xtensa-modules.inc.c
target/xtensa/core-de212/core-isa.h
target/xtensa/core-de212/xtensa-modules.inc.c
target/xtensa/core-fsf/xtensa-modules.inc.c
target/xtensa/core-sample_controller/core-isa.h
target/xtensa/core-sample_controller/xtensa-modules.inc.c
target/xtensa/core-test_kc705_be/core-isa.h
target/xtensa/core-test_kc705_be/xtensa-modules.inc.c
tests/tcg/cris/check_abs.c
tests/tcg/cris/check_addc.c
tests/tcg/cris/check_addcm.c
tests/tcg/cris/check_addoq.c
tests/tcg/cris/check_bound.c
tests/tcg/cris/check_ftag.c
tests/tcg/cris/check_int64.c
tests/tcg/cris/check_lz.c
tests/tcg/cris/check_openpf5.c
tests/tcg/cris/check_sigalrm.c
tests/tcg/cris/crisutils.h
tests/tcg/cris/sys.c
tests/tcg/i386/test-i386-ssse3.c
ui/vgafont.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20181213223737.11793-3-pbonzini@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Eric Blake <eblake@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There are not many, and they are all simple mistakes that ended up
being committed. Remove them.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20181213223737.11793-2-pbonzini@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since we're adding checkpatch rules to enforce 4-line multiline comment
format, i.e. with lone /* and */, this script can be run on existing
code so that the comment style does not become inconsistent within a
file.
The alternative to awk-in-a-shell-script could be Perl, which also
supports -i directly, but a2p seems to have bitrotten and I didn't quite
feel like writing this twice...
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The registered memory region of i6300esb is not suitable for coalesced
mmio, because a write for the region may trigger an immediate action
and can't be delayed.
Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
Message-Id: <1544253511-82742-1-git-send-email-peng.hao2@zte.com.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
QTAILQ is a doubly linked list, with a pointer-to-pointer to the last
element from the head, and the previous element from each node.
But if you squint enough, QTAILQ becomes a combination of a singly-linked
forwards list, and another singly-linked list which goes backwards and
is circular. This is the idea that lets QTAILQ implement reverse
iteration: only, because the backwards list points inside the node,
accessing the previous element needs to go two steps back and one
forwards.
What this patch does is implement it in these terms, without actually
changing the in-memory layout at all. The coexistence of the two lists
is realized by making QTAILQ_HEAD and QTAILQ_ENTRY unions of the forwards
pointer and a generic QTailQLink node. Thq QTailQLink can walk the list in
both directions; the union is needed so that the forwards pointer can
have the correct type, as a sort of poor man's template. While there
are other ways to get the same layout without a union, this one has
the advantage of simpler operation in the debugger, because the fields
tqh_first and tqe_next still exist as before the patch. Those fields are
also used by scripts/qemugdb/mtree.py, so it's a good idea to preserve them.
The advantage of the new representation is that the two-back-one-forward
dance done by backwards accesses can be done all while operating on
QTailQLinks. No casting to the head struct is needed anymore because,
even though the QTailQLink's forward pointer is a void *, we can use
typeof to recover the correct type. This patch only changes the
implementation, not the interface. The next patch will remove the head
struct name from the backwards visit macros.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are not present for other kinds of queue, and unused.
Zap them before more changes are made to the QTAILQ
implementation.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This will be needed when we change the QTAILQ head and elem structs
to unions. However, it is also consistent with the usage elsewhere
in QEMU for other list head structs (see for example FsMountList).
Note that most QTAILQs only need their name in order to do backwards
walks. Those do not break with the struct->union change, and anyway
the change will also remove the need to name heads when doing backwards
walks, so those are not touched here.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Most list head structs need not be given a name. In most cases the
name is given just in case one is going to use QTAILQ_LAST, QTAILQ_PREV
or reverse iteration, but this does not apply to lists of other kinds,
and even for QTAILQ in practice this is only rarely needed. In addition,
we will soon reimplement those macros completely so that they do not
need a name for the head struct. So clean up everything, not giving a
name except in the rare case where it is necessary.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It is not used outside hw/vfio/common.c, so it does not need to
be extern.
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use the QTAILQ_IN_USE macro instead, it does the same thing but the next
patch will change it to a different definition.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
gtester is deprecated by upstream glib (see for example the announcement
at https://blog.gtk.org/2018/07/11/news-from-glib-2-58/) and it does
not support tests that call g_test_skip in some glib stable releases.
glib suggests instead using Automake's TAP support, which gtest itself
supports since version 2.38 (QEMU's minimum requirement is 2.40).
We do not support Automake, but we can use Automake's code to beautify
the TAP output. I chose to use the Perl copy rather than the shell/awk
one, with some changes so that it can accept TAP through stdin, in order
to reuse Perl's TAP parsing package. This also avoids duplicating the
parser between tap-driver.pl and tap-merge.pl.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1543513531-1151-3-git-send-email-pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Sometimes a test's main() function recognizes that the environment
does not support the test, and therefore exits. In this case, we
still should run g_test_run() so that a TAP harness will print the
test plan ("1..0") and the test will be marked as skipped.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1543513531-1151-2-git-send-email-pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Building QGA for XP seems possible so far: the dependency on
libqemuutil.a implies building qemu-thread-win32.c, which requires
Vista API since commit 12f8def0 (v2.9). But qemu-thread isn't being
used in QGA, the resulting binary may still work on XP. XP is no
longer supported for the past 4.5y, it's time to drop support for it.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181122110039.15972-5-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Both qemu & qga build with Vista API by default already, by defining
_WIN32_WINNT 0x0600. Set it globally in osdep.h instead.
This replaces WINVER by _WIN32_WINNT in osdep.h. WINVER doesn't seem
to be really useful these days.
(see also https://blogs.msdn.microsoft.com/oldnewthing/20070411-00/?p=27283)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181122110039.15972-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This removes some clutter in compilation logging, and allows some
easier tweaking per compilation unit/CFLAGS overriding.
Note that we can't move those define in os-win32.h, since they must be
set before the first system headers are included.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181122110039.15972-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
osdep.h will also define the available Windows API version for QEMU.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181122110039.15972-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The guest OS reads RSTAT, RSEQ, and RINTR, and expects those registers
to reflect a consistent state. However, it is possible that the registers
can change after RSTAT was read, but before RINTR is read, when
esp_command_complete() is called.
Guest OS qemu
-------- ----
[handle interrupt]
Read RSTAT
esp_command_complete()
RSTAT = STAT_ST
esp_dma_done()
RSTAT |= STAT_TC
RSEQ = 0
RINTR = INTR_BS
Read RSEQ
Read RINTR RINTR = 0
RSTAT &= ~STAT_TC
RSEQ = SEQ_CD
The guest OS would then try to handle INTR_BS combined with an old
value of RSTAT. This sometimes resulted in lost events, spurious
interrupts, guest OS confusion, and stalled SCSI operations.
A typical guest error log (observed with various versions of Linux)
looks as follows.
scsi host1: Spurious irq, sreg=13.
...
scsi host1: Aborting command [84531f10:2a]
scsi host1: Current command [f882eea8:35]
scsi host1: Queued command [84531f10:2a]
scsi host1: Active command [f882eea8:35]
scsi host1: Dumping command log
scsi host1: ent[15] CMD val[44] sreg[90] seqreg[00] sreg2[00] ireg[20] ss[00] event[0c]
scsi host1: ent[16] CMD val[01] sreg[90] seqreg[00] sreg2[00] ireg[20] ss[02] event[0c]
scsi host1: ent[17] CMD val[43] sreg[90] seqreg[00] sreg2[00] ireg[20] ss[02] event[0c]
scsi host1: ent[18] EVENT val[0d] sreg[92] seqreg[04] sreg2[00] ireg[18] ss[00] event[0c]
...
Defer handling command completion until previous interrupts have been
handled to fix the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Per AM53C974 datasheet, definition of "SCSI Bus and Control (SBAC)"
register:
Bit 24 'STATUS' Write Erase Control
This bit controls the Write Erase feature on bits 3:1 and bit 6 of the DMA
Status Register ((B)+54h). When this bit is programmed to '1', the state
of bits 3:1 are preserved when read. Bits 3:1 are only cleared when a '1'
is written to the corresponding bit location. For example, to clear bit 1,
the value of '0000_0010b' should be written to the register. When the DMA
Status Preserve bit is '0', bits 3:1 are cleared when read.
The status register is currently defined to bit 12, not bit 24.
Also, its implementation is reversed: The status is auto-cleared if
the bit is set to 1, and must be cleared explicitly when the bit is
set to 0. This results in spurious interrupts reported by the Linux
kernel, and in some cases even results in stalled SCSI operations.
Set SBAC_STATUS to bit 24 and reverse the logic to fix the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-Id: <1543442171-24863-1-git-send-email-linux@roeck-us.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The libiscsi iscsi_task_mgmt_async() API documentation says:
abort_task will also cancel the scsi task. The callback for the scsi
task will be invoked with SCSI_STATUS_CANCELLED
The libiscsi implementation does not fulfil this promise. The task's
callback is not invoked and its struct iscsi_pdu remains in the internal
list (effectively leaked).
This patch invokes the libiscsi iscsi_scsi_cancel_task() API to force
the task's callback to be invoked with SCSI_STATUS_CANCELLED when the
ABORT TASK TMF completes and the task's callback hasn't been invoked
yet.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180215111526.2464-1-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
iscsi_aio_cancel() does not increment the request's reference count,
causing a use-after-free when ABORT TASK finishes after the request has
already completed.
There are some additional issues with iscsi_aio_cancel():
1. Several ABORT TASKs may be sent for the same task if
iscsi_aio_cancel() is invoked multiple times. It's better to avoid
this just in case the command identifier is reused.
2. The iscsilun->mutex protection is missing in iscsi_aio_cancel().
Reported-by: Felipe Franciosi <felipe@nutanix.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180203061621.7033-4-stefanha@redhat.com>
Reviewed-by: Felipe Franciosi <felipe@nutanix.com>
Tested-by: Sreejith Mohanan <sreejit.mohanan@nutanix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit d045c466d9 ("iscsi: do not use
aio_context_acquire/release") introduced iscsilun->mutex but appears to
have overlooked iscsi_timed_check_events() when introducing the mutex.
iscsi_service() and iscsi_set_events() must be called with
iscsilun->mutex held.
iscsi_timed_check_events() is invoked from the AioContext and does not
take the mutex.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180203061621.7033-3-stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The IscsiAIOCB->buf field has not been used since commit
e49ab19fca ("block/iscsi: bump libiscsi
requirement to 1.9.0"). It used to be a linear buffer for old libiscsi
versions that didn't support scatter-gather. The minimum libiscsi
version supports scatter-gather so we don't linearize buffers anymore.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180203061621.7033-2-stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Intel HAXM supports now 32-bit and 64-bit Linux hosts. This patch includes
the corresponding userland changes.
Since the Darwin userland backend is POSIX-compliant, the hax-darwin.{c,h}
files have been renamed to hax-posix.{c,h}. This prefix is consistent with
the naming used in the rest of QEMU.
Signed-off-by: Alexandro Sanchez Bach <asanchez@kryptoslogic.com>
Message-Id: <20181115013331.65820-1-asanchez@kryptoslogic.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The e1000 driver calls memory_region_add_coalescing but
kvm_coalesce_mmio_region is never called for those regions. The bug
dates back to the introduction of the memory region API; to fix it,
delete and re-add coalesced MMIO ranges when building the FlatViews.
Because coalesced MMIO regions apply to all address spaces, the
has_coalesced_range flag has to be changed into an int.
Fixes: 093bc2cd88 ("Hierarchical memory region API")
Reported-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Store whether the FlatRange has had any coalesced I/O ranges applied,
and if not avoid calling coalesced_io_del. This is useful in preparation
for the next patch, which will call coalesced_io_del when rendering
memory regions.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Extract two new functions from memory_region_update_coalesced_range_as.
To avoid duplication in the creation of the MemoryRegionSection, use
MEMORY_LISTENER_UPDATE_REGION instead of MEMORY_LISTENER_CALL
to invoke the listener callback.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add optional colors to make seeing message types a bit easier.
The default is to show them on a tty.
Inspired by Linux commits 57230297116fa ("checkpatch: colorize output
to terminal") and 737c0767758b ("checkpatch: change format of --color
argument to --color[=WHEN]").
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Similar to how patchew output looks like for multiple patches,
say what file or patch is being tested _before_ emitting errors.
This is clearer to a human that scans the output from top to
bottom.
In addition, provide a truncated commit hash and subject instead of
the full hash, and process the commits first-to-last rather than
last-to-first.
Inspired by Linux commit 0dea9f1eef86bedacad91b6f652ca1ab0d08854c
("checkpatch: reduce number of `git log` calls with --git", 2016-03-20).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pull the test before the anticipated exits from the process sub.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In some cases, checkpatch's process subroutine is exiting the
whole process. This is wrong, just return from the subroutine
instead.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When compiling with "--disable-tcg", we currently still use "tcg"
as default accelerator. "kvm" should be used in this case instead.
Also, some downstream distros provide QEMU binaries which have "kvm"
in their names (e.g. "qemu-kvm" on RHEL or "kvm" on Ubuntu) that use
KVM by default - and some users might want to do something similar
with upstream binaries, too. Accomodate them by using "kvm:tcg" as
default when we detect such a binary name.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1538748792-19444-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SeaBIOS introduced CROSS_PREFIX in 2013 but it's not set in roms
Makefile.
With the change it's possible to cross-compile SeaBIOS on macOS,
if acpica/iasl is installed:
cd roms
export PATH=/path/to/cross/x86_64-unknown-linux-gnu/bin:$PATH
make bios system=unknown-linux-gnu
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-id: 20181121203720.75916-1-r.bolshakov@yadro.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There is no reason to allocate mouse events using malloc, we can
allcoate them from stack instead, save a few cpu cycles and make the
code more readable with c99 initializers.
Suggested-by: FelixYao <felix.yzg@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181210140808.26794-1-kraxel@redhat.com
