Commit Graph

65323 Commits

Author SHA1 Message Date
Aleksandar Markovic
823f2897bd target/mips: Disable R5900 support
Disable R5900 support. There are some outstanding issues related
to ABI support and emulation accuracy, that were not understood
well during review process. Disable to avoid backward compatibility
issues.

Reverts commit ed4f49ba9b.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Aleksandar Markovic
874b287970 target/mips: Rename MMI-related functions
Rename MMI-related functions.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Aleksandar Markovic
baa609db75 target/mips: Rename MMI-related opcodes
Rename MMI-related opcodes.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Aleksandar Markovic
c8341e0000 target/mips: Rename MMI-related masks
Rename MMI-related masks.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Fredrik Noring
992e8176d3 target/mips: Guard check_insn with INSN_R5900 check
Explicitely mark handling of PREF instruction for R5900 as
treating the same as NOP.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Fredrik Noring
55fc7a69aa target/mips: Guard check_insn_opc_user_only with INSN_R5900 check
Avoid using check_opc_user_only() as a decision making code wrt
various architectures. Use ctx->insn_flags checks instead.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Fredrik Noring
9dc324ce66 target/mips: Fix decoding mechanism of special R5900 opcodes
MOVN, MOVZ, MFHI, MFLO, MTHI, MTLO, MULT, MULTU, DIV, DIVU, DMULT,
DMULTU, DDIV, DDIVU and JR are decoded in decode_opc_special_tx79
instead of the generic decode_opc_special_legacy.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Fredrik Noring
c42171c3bf target/mips: Fix decoding mechanism of R5900 DIV1 and DIVU1
DIV1 and DIVU1 are generated in gen_div1_tx79 instead of the generic
gen_muldiv.

Signed-off-by: Fredrik Noring <noring@nocrew.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Fredrik Noring
86efbfb619 target/mips: Fix decoding mechanism of R5900 MFLO1, MFHI1, MTLO1 and MTHI1
MFLO1, MFHI1, MTLO1 and MTHI1 are generated in gen_HILO1_tx79 instead of
the generic gen_HILO.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Stefan Markovic
6456c51081 linux-user: Update MIPS specific prctl() implementation
Perform needed checks before actual prctl() PR_SET_FP_MODE and
PR_GET_FP_MODE work based on kernel implementation. Also, update
necessary hflags.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-17 19:29:34 +01:00
Peter Maydell
83c496599c ui: add rendernode arg for egl-headless (fixes permission issues with libvirt)
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Merge remote-tracking branch 'remotes/kraxel/tags/fixes-31-20181116-pull-request' into staging

ui: add rendernode arg for egl-headless (fixes permission issues with libvirt)

# gpg: Signature made Fri 16 Nov 2018 13:29:15 GMT
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/fixes-31-20181116-pull-request:
  help: Provide help for egl-headless
  ui: Allow specifying 'rendernode' display option for egl-headless
  qapi: Add "rendernode" display option for egl-headless

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-16 13:53:01 +00:00
Erik Skultety
144aaa990e help: Provide help for egl-headless
EGL headless has been missing from QEMU's help or man page, we should
mention that such a thing exists, especially since projects like libvirt
might rely on that. This patch also adds the newly introduced option for
egl-headless 'rendernode'.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Message-id: 87ef678b0934d3abba66c46c9e65b57119d29295.1542362949.git.eskultet@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-16 11:44:22 +01:00
Erik Skultety
91e61947eb ui: Allow specifying 'rendernode' display option for egl-headless
As libvirt can't predict which rendernode QEMU would pick, it
won't adjust the permissions on the device, hence QEMU getting
"Permission denied" when opening the DRI device. Therefore, enable
'rendernode' option for egl-headless display type.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1648236

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Message-id: 27f4617f19aa1072114f10f1aa9dd199735ef982.1542362949.git.eskultet@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-16 11:44:22 +01:00
Erik Skultety
d4dc4ab133 qapi: Add "rendernode" display option for egl-headless
Unlike SPICE, egl-headless doesn't offer a way of specifying the DRM
node used for OpenGL, hence QEMU always selecting the first one that is
available. Thus, add the 'rendernode' option for egl-headless to QAPI.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Message-id: 7658e15eca72d520e7a5fb1c2e724702d83d4f7f.1542362949.git.eskultet@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-16 11:44:22 +01:00
Peter Maydell
6ea4161e64 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
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 =c83S
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Fri 16 Nov 2018 03:38:58 GMT
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  net/filter-rewriter.c: Fix coverity static analysis issue

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-16 10:01:04 +00:00
Zhang Chen
013a62020a net/filter-rewriter.c: Fix coverity static analysis issue
The original code just follow the TCP state diagram,
but in this case, we can skip the TCPS_TIME_WAIT state to simplify
the implementation.

Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2018-11-16 11:08:26 +08:00
Peter Maydell
d835c61924 Merge tpm 2018/11/15 v1
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Merge remote-tracking branch 'remotes/stefanberger/tags/pull-tpm-2018-11-15-1' into staging

Merge tpm 2018/11/15 v1

# gpg: Signature made Thu 15 Nov 2018 14:03:45 GMT
# gpg:                using RSA key 75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.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: B818 B9CA DF90 89C2 D5CE  C66B 75AD 6580 2A0B 4211

* remotes/stefanberger/tags/pull-tpm-2018-11-15-1:
  tests: tpm: Use g_test_message rather than fprintf
  tpm: use loop iterator to set sts data field

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-15 14:18:25 +00:00
Peter Maydell
bba390cb9e linux-user/sparc/signal.c: Remove dead code
Coverity complains (CID 1390847) about some dead code in
do_sigreturn(). This is an if (err) clause that can never be
true, copied from the kernel (where __get_user returns an error).
The one code path that could report an error is in the
currently commented-out pseudocode for handling FPU register
restoring, so move the if into that comment (and fix the
broken indent in the comment in the process).

(The new position for the error check is also the semantically
correct one -- we should not restore the signal mask from
the signal frame if we get an error here, so the check must
be done before set_sigmask(), not after.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 20181115114616.26265-1-peter.maydell@linaro.org
2018-11-15 13:06:40 +00:00
Michael Roth
3fccd3f26e make-release: add skiboot .version file
This is needed to build skiboot from tarball-distributed sources
since the git data the make_release.sh script relies on to generate
it is not available.

Cc: qemu-stable@nongnu.org
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20181109161352.29873-1-mdroth@linux.vnet.ibm.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-15 13:03:57 +00:00
Peter Maydell
5eb48906d4 Testing tweaks:
- split MacOSX build
   - fix for readdir() failures in check-tcg
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-fixes-for-3.1-141118-1' into staging

Testing tweaks:

  - split MacOSX build
  - fix for readdir() failures in check-tcg

# gpg: Signature made Wed 14 Nov 2018 13:08:24 GMT
# gpg:                using RSA key FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>"
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-fixes-for-3.1-141118-1:
  tests/tcg/multiarch: fix 32bit linux-test on 64bit host
  .travis.yml: split MacOSX builds and reduce target list

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-15 11:26:48 +00:00
Peter Maydell
18d30e7b59 Fix error handling during zpci device creation.
-----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20181114' into staging

Fix error handling during zpci device creation.

# gpg: Signature made Wed 14 Nov 2018 10:08:43 GMT
# gpg:                using RSA key DECF6B93C6F02FAF
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>"
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>"
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>"
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck/tags/s390x-20181114:
  s390x/pci: properly fail if the zPCI device cannot be created

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-15 10:01:16 +00:00
Stefan Berger
5e58b58c47 tests: tpm: Use g_test_message rather than fprintf
Display a message during the test using g_test_message rather
than fprintf.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2018-11-14 16:12:24 -05:00
Prasad J Pandit
6a50bb98f2 tpm: use loop iterator to set sts data field
When TIS request is done, set 'sts' data field across all localities.

Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2018-11-14 15:47:24 -05:00
Laurent Vivier
1f442da51e tests/tcg/multiarch: fix 32bit linux-test on 64bit host
Fix:

  TEST    linux-test on i386
  .../tests/tcg/multiarch/linux-test.c:201: readdir

readdir() calls getdents64() to have the list of the entries in a
directory, and getdents64() can return 64bit d_off values (with ext4,
for instance) that will not fit in the 32bit d_off field of the
readdir() dirent structure.

To avoid that, use readdir64() to use a 64bit d_off field too.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-11-14 11:07:06 +00:00
Alex Bennée
adcf96830d .travis.yml: split MacOSX builds and reduce target list
We have reached the point where the MacOSX build was regularly timing
out. So as before I've reduced the target list to "major"
architectures to try and bring the build time down. I've added an
additional MacOSX build with the latest XCode with a minimal list of
"most likely" targets on MacOS.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-11-14 10:20:23 +00:00
Palmer Dabbelt
3502dc824a
RISC-V: Respect fences for user-only emulators
Our current fence implementation ignores fences for the user-only
configurations.  This is incorrect but unlikely to manifest: it requires
multi-threaded user-only code that takes advantage of the weakness in
the host's memory model and can be inlined by TCG.

This patch simply treats fences the same way for all our emulators.
I've given it to testing as I don't want to construct a test that would
actually trigger the failure.

Our fence implementation has an additional deficiency where we map all
RISC-V fences to full fences.  Now that we have a formal memory model
for RISC-V we can start to take advantage of the strength bits on our
fence instructions.  This requires a bit more though, so I'm going to
split it out because the implementation is still correct without taking
advantage of these weaker fences.

Thanks to Richard Henderson for pointing out both of the issues.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2018-11-13 15:12:15 -08:00
Bastian Koppelmann
6573777306
target/riscv: Fix sfence.vm/a both available in any priv version
sfence.vm has been replaced in priv v1.10 spec by sfence.vma.

Reported-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-13 15:12:15 -08:00
Bastian Koppelmann
40cf6a54c9
target/riscv: Fix FCLASS_D being treated as RV64 only
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-13 15:12:15 -08:00
Alistair Francis
632fb2792b
hw/riscv/virt: Free the test device tree node name
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-13 15:12:13 -08:00
Peter Maydell
cb968d275c Update version for v3.1.0-rc1 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 18:16:14 +00:00
David Hildenbrand
b6e67ecc7b s390x/pci: properly fail if the zPCI device cannot be created
Right now, errors during realize()/pre_plug/plug of the zPCI device
would result in QEMU crashing instead of failing nicely when creating
a zPCI device for a PCI device.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Collin Walling <walling@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181113121710.18490-1-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-11-13 16:46:55 +01:00
Peter Maydell
6ff1446989 qemu-ga patch queue for 3.1.0
* add missing #include guards for guest-agent-core.h
 * fix leaks introduced with recent win32 enablement of disk info in
   guest-get-fsinfo
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Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2018-11-12-tag' into staging

qemu-ga patch queue for 3.1.0

* add missing #include guards for guest-agent-core.h
* fix leaks introduced with recent win32 enablement of disk info in
  guest-get-fsinfo

# gpg: Signature made Tue 13 Nov 2018 02:52:12 GMT
# gpg:                using RSA key 3353C9CEF108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg:                 aka "Michael Roth <mdroth@utexas.edu>"
# gpg:                 aka "Michael Roth <mdroth@linux.vnet.ibm.com>"
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D  3FA0 3353 C9CE F108 B584

* remotes/mdroth/tags/qga-pull-2018-11-12-tag:
  qga: Add multiple include guard to guest-agent-core.h
  qga-win: fix leaks of build_guest_disk_info()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 12:32:30 +00:00
Peter Maydell
186ac05f74 - gdb signal handling fix
- add SO_REUSEPORT
 - remove dead-code
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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-3.1-pull-request' into staging

- gdb signal handling fix
- add SO_REUSEPORT
- remove dead-code

# gpg: Signature made Mon 12 Nov 2018 20:48:23 GMT
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-3.1-pull-request:
  linux-user: Add support for SO_REUSEPORT
  linux-user: Clean up nios2 main loop signal handling
  linux-user: Don't call gdb_handlesig() before queue_signal()
  linux-user: Remove dead error-checking code

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 11:45:16 +00:00
Peter Maydell
a8a1b163b7 target/arm queue:
* Remove no-longer-needed workaround for small SAU regions for v8M
  * Remove antique TODO comment
  * MAINTAINERS: Add an entry for the 'collie' machine
  * hw/arm/sysbus-fdt: Only call match_fn callback if the type matches
  * Fix infinite recursion in tlbi_aa64_vmalle1_write()
  * ARM KVM: fix various bugs in handling of guest debugging
  * Correctly implement handling of HCR_EL2.{VI, VF}
  * Hyp mode R14 is shared with User and System
  * Give Cortex-A15 and -A7 the EL2 feature
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20181113' into staging

target/arm queue:
 * Remove no-longer-needed workaround for small SAU regions for v8M
 * Remove antique TODO comment
 * MAINTAINERS: Add an entry for the 'collie' machine
 * hw/arm/sysbus-fdt: Only call match_fn callback if the type matches
 * Fix infinite recursion in tlbi_aa64_vmalle1_write()
 * ARM KVM: fix various bugs in handling of guest debugging
 * Correctly implement handling of HCR_EL2.{VI, VF}
 * Hyp mode R14 is shared with User and System
 * Give Cortex-A15 and -A7 the EL2 feature

# gpg: Signature made Tue 13 Nov 2018 10:51:53 GMT
# gpg:                using RSA key 3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20181113:
  target/arm/cpu: Give Cortex-A15 and -A7 the EL2 feature
  target/arm: Hyp mode R14 is shared with User and System
  target/arm: Correctly implement handling of HCR_EL2.{VI, VF}
  target/arm: Track the state of our irq lines from the GIC explicitly
  Revert "target/arm: Implement HCR.VI and VF"
  arm: fix aa64_generate_debug_exceptions to work with EL2
  arm: use symbolic MDCR_TDE in arm_debug_target_el
  tests/guest-debug: fix scoping of failcount
  target/arm64: kvm debug set target_el when passing exception to guest
  target/arm64: hold BQL when calling do_interrupt()
  target/arm64: properly handle DBGVR RESS bits
  target/arm: Fix typo in tlbi_aa64_vmalle1_write
  hw/arm/sysbus-fdt: Only call match_fn callback if the type matches
  MAINTAINERS: Add an entry for the 'collie' machine
  target/arm: Remove antique TODO comment
  target/arm: Remove workaround for small SAU regions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:52:32 +00:00
Peter Maydell
436c0cbbeb target/arm/cpu: Give Cortex-A15 and -A7 the EL2 feature
The Cortex-A15 and Cortex-A7 both have EL2; now we've implemented
it properly we can enable the feature bit.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181109173553.22341-3-peter.maydell@linaro.org
2018-11-13 10:47:59 +00:00
Peter Maydell
593cfa2b63 target/arm: Hyp mode R14 is shared with User and System
Hyp mode is an exception to the general rule that each AArch32
mode has its own r13, r14 and SPSR -- it has a banked r13 and
SPSR but shares its r14 with User and System mode. We were
incorrectly implementing it as banked, which meant that on
entry to Hyp mode r14 was 0 rather than the USR/SYS r14.

We provide a new function r14_bank_number() which is like
the existing bank_number() but provides the index into
env->banked_r14[]; bank_number() provides the index to use
for env->banked_r13[] and env->banked_cpsr[].

All the points in the code that were using bank_number()
to index into env->banked_r14[] are updated for consintency:
 * switch_mode() -- this is the only place where we fix
   an actual bug
 * aarch64_sync_32_to_64() and aarch64_sync_64_to_32():
   no behavioural change as we already special-cased Hyp R14
 * kvm32.c: no behavioural change since the guest can't ever
   be in Hyp mode, but conceptually the right thing to do
 * msr_banked()/mrs_banked(): we can never get to the case
   that accesses banked_r14[] with tgtmode == ARM_CPU_MODE_HYP,
   so no behavioural change

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20181109173553.22341-2-peter.maydell@linaro.org
2018-11-13 10:47:59 +00:00
Peter Maydell
89430fc6f8 target/arm: Correctly implement handling of HCR_EL2.{VI, VF}
In commit 8a0fc3a29f we tried to implement HCR_EL2.{VI,VF},
but we got it wrong and had to revert it.

In that commit we implemented them as simply tracking whether there
is a pending virtual IRQ or virtual FIQ. This is not correct -- these
bits cause a software-generated VIRQ/VFIQ, which is distinct from
whether there is a hardware-generated VIRQ/VFIQ caused by the
external interrupt controller. So we need to track separately
the HCR_EL2 bit state and the external virq/vfiq line state, and
OR the two together to get the actual pending VIRQ/VFIQ state.

Fixes: 8a0fc3a29f
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20181109134731.11605-4-peter.maydell@linaro.org
2018-11-13 10:47:59 +00:00
Peter Maydell
ed89f078ff target/arm: Track the state of our irq lines from the GIC explicitly
Currently we track the state of the four irq lines from the GIC
only via the cs->interrupt_request or KVM irq state. That means
that we assume that an interrupt is asserted if and only if the
external line is set. This assumption is incorrect for VIRQ
and VFIQ, because the HCR_EL2.{VI,VF} bits allow assertion
of VIRQ and VFIQ separately from the state of the external line.

To handle this, start tracking the state of the external lines
explicitly in a CPU state struct field, as is common practice
for devices.

The complicated part of this is dealing with inbound migration
from an older QEMU which didn't have this state. We assume in
that case that the older QEMU did not implement the HCR_EL2.{VI,VF}
bits as generating interrupts, and so the line state matches
the current state in cs->interrupt_request. (This is not quite
true between commit 8a0fc3a29f and its revert, but
that commit is broken and never made it into any released QEMU
version.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20181109134731.11605-3-peter.maydell@linaro.org
2018-11-13 10:47:59 +00:00
Peter Maydell
c624ea0fa7 Revert "target/arm: Implement HCR.VI and VF"
This reverts commit 8a0fc3a29f.

The implementation of HCR.VI and VF in that commit is not
correct -- they do not track the overall "is there a pending
VIRQ or VFIQ" status, but whether there is a pending interrupt
due to "this mechanism", ie the hypervisor having set the VI/VF
bits. The overall pending state for VIRQ and VFIQ is effectively
the logical OR of the inbound lines from the GIC with the
VI and VF bits. Commit 8a0fc3a29f would result in pending
VIRQ/VFIQ possibly being lost when the hypervisor wrote to HCR.

As a preliminary to implementing the HCR.VI/VF feature properly,
revert the broken one entirely.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20181109134731.11605-2-peter.maydell@linaro.org
2018-11-13 10:47:59 +00:00
Alex Bennée
22af90255e arm: fix aa64_generate_debug_exceptions to work with EL2
The test was incomplete and incorrectly caused debug exceptions to be
generated when returning to EL2 after a failed attempt to single-step
an EL1 instruction. Fix this while cleaning up the function a little.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181109152119.9242-8-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:59 +00:00
Alex Bennée
b281ba4223 arm: use symbolic MDCR_TDE in arm_debug_target_el
We already have this symbol defined so lets use it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181109152119.9242-7-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:59 +00:00
Alex Bennée
f251cb2371 tests/guest-debug: fix scoping of failcount
You should declare you are using a global version of a variable before
you attempt to modify it in a function.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181109152119.9242-5-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:59 +00:00
Alex Bennée
14f9a5c0e4 target/arm64: kvm debug set target_el when passing exception to guest
When we are debugging the guest all exceptions come our way but might
be for the guest's own debug exceptions. We use the ->do_interrupt()
infrastructure to inject the exception into the guest. However, we are
missing a full setup of the exception structure, causing an assert
later down the line.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181109152119.9242-4-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:59 +00:00
Alex Bennée
9b16ec4351 target/arm64: hold BQL when calling do_interrupt()
Fix the assertion failure when running interrupts.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181109152119.9242-3-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:59 +00:00
Alex Bennée
864df2058d target/arm64: properly handle DBGVR RESS bits
This only fails with some (broken) versions of gdb but we should
treat the top bits of DBGBVR as RESS. Properly sign extend QEMU's
reference copy of dbgbvr and also update the register descriptions in
the comment.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181109152119.9242-2-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:59 +00:00
Richard Henderson
09a86dfa3f target/arm: Fix typo in tlbi_aa64_vmalle1_write
This would cause an infinite recursion or loop.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20181110121711.15257-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:58 +00:00
Eric Auger
e9ac8e84f0 hw/arm/sysbus-fdt: Only call match_fn callback if the type matches
Commit af7d64ede0 (hw/arm/sysbus-fdt: Allow device matching with DT
compatible value) introduced a match_fn callback which gets called
for each registered combo to check whether a sysbus device can be
dynamically instantiated. However the callback gets called even if
the device type does not match the binding combo typename field.
This causes an assert when passing "-device ramfb" to the qemu
command line as vfio_platform_match() gets called on a non
vfio-platform device.

To fix this regression, let's change the add_fdt_node() logic so
that we first check the type and if the match_fn callback is defined,
then we also call it.

Binding combos only requesting a type check do not define the
match_fn callback.

Fixes: af7d64ede0 (hw/arm/sysbus-fdt: Allow device matching with
DT compatible value)

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-id: 20181106184212.29377-1-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:58 +00:00
Thomas Huth
671f11b204 MAINTAINERS: Add an entry for the 'collie' machine
There is no active maintainer, but since Peter is picking up
patches via qemu-arm@nongnu.org, I think we could at least use
"Odd Fixes" as status here.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 1541528230-31817-1-git-send-email-thuth@redhat.com
[PMM: Also add myself as an M: contact]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-13 10:47:58 +00:00
Peter Maydell
e24ad48490 target/arm: Remove antique TODO comment
Remove a TODO comment about implementing the vectored interrupt
controller. We have had an implementation of that for a decade;
it's in hw/intc/pl190.c.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181106164118.16184-1-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2018-11-13 10:47:58 +00:00
Peter Maydell
521ed6b401 target/arm: Remove workaround for small SAU regions
Before we supported direct execution from MMIO regions, we
implemented workarounds in commit 7204243599
which let us avoid doing so, even if the SAU or MPU region
was less than page-sized.

Once we implemented execute-from-MMIO, we removed part
of those workarounds in commit d4b6275df320cee76; but
we forgot the one in get_phys_addr_pmsav8() which
suppressed use of small SAU regions in executable regions.
Remove that workaround now.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181106163801.14474-1-peter.maydell@linaro.org
2018-11-13 10:47:58 +00:00