Commit Graph

67034 Commits

Author SHA1 Message Date
Richard Henderson
a5c5dc53c4 target/arm: Remove neon min/max helpers
These are now unused.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190209033847.9014-6-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:40 +00:00
Richard Henderson
9ecd3c5c16 target/arm: Use tcg integer min/max primitives for neon
The 32-bit PMIN/PMAX has been decomposed to scalars,
and so can be trivially expanded inline.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190209033847.9014-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:40 +00:00
Richard Henderson
6f27822182 target/arm: Use vector minmax expanders for aarch32
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190209033847.9014-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:40 +00:00
Richard Henderson
264d2a481a target/arm: Use vector minmax expanders for aarch64
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190209033847.9014-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:40 +00:00
Richard Henderson
2900847ff4 target/arm: Rely on optimization within tcg_gen_gvec_or
Since we're now handling a == b generically, we no longer need
to do it by hand within target/arm/.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190209033847.9014-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:39 +00:00
Peter Maydell
5007c904e1 hw/arm/armsse: Fix miswiring of expansion IRQs
In commit 91c1e9fcbd where we added dual-CPU support to
the ARMSSE, we set up the wiring of the expansion IRQs via nested
loops: the outer loop on 'i' loops for each CPU, and the inner loop
on 'j' loops for each interrupt. Fix a typo which meant we were
wiring every expansion IRQ line to external IRQ 0 on CPU 0 and
to external IRQ 1 on CPU 1.

Fixes: 91c1e9fcbd ("hw/arm/armsse: Support dual-CPU configuration")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-02-15 09:56:39 +00:00
Peter Maydell
935fe442dc hw/intc/armv7m_nvic: Allow byte accesses to SHPR1
The code for handling the NVIC SHPR1 register intends to permit
byte and halfword accesses (as the architecture requires). However
the 'case' line for it only lists the base address of the
register, so attempts to access bytes other than the first one
end up in the "bad write" default logic. This bug was added
accidentally when we split out the SHPR1 logic from SHPR2 and
SHPR3 to support v6M.

Fixes: 7c9140afd5 ("nvic: Handle ARMv6-M SCS reserved registers")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
The Zephyr RTOS happens to access SHPR1 byte at a time,
which is how I spotted this.
2019-02-15 09:56:39 +00:00
Peter Maydell
6ea5648722 MAINTAINERS: Remove Peter Crosthwaite from various entries
Peter Crosthwaite hasn't had the bandwidth to do code review or
other QEMU work for some time now -- remove his email address
from MAINTAINERS file entries so we don't bombard him with
patch emails.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20190207181422.4907-1-peter.maydell@linaro.org
2019-02-15 09:56:39 +00:00
Peter Maydell
823e1b3818 arm: Allow system registers for KVM guests to be changed by QEMU code
At the moment the Arm implementations of kvm_arch_{get,put}_registers()
don't support having QEMU change the values of system registers
(aka coprocessor registers for AArch32). This is because although
kvm_arch_get_registers() calls write_list_to_cpustate() to
update the CPU state struct fields (so QEMU code can read the
values in the usual way), kvm_arch_put_registers() does not
call write_cpustate_to_list(), meaning that any changes to
the CPU state struct fields will not be passed back to KVM.

The rationale for this design is documented in a comment in the
AArch32 kvm_arch_put_registers() -- writing the values in the
cpregs list into the CPU state struct is "lossy" because the
write of a register might not succeed, and so if we blindly
copy the CPU state values back again we will incorrectly
change register values for the guest. The assumption was that
no QEMU code would need to write to the registers.

However, when we implemented debug support for KVM guests, we
broke that assumption: the code to handle "set the guest up
to take a breakpoint exception" does so by updating various
guest registers including ESR_EL1.

Support this by making kvm_arch_put_registers() synchronize
CPU state back into the list. We sync only those registers
where the initial write succeeds, which should be sufficient.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Dongjiu Geng <gengdongjiu@huawei.com>
2019-02-15 09:56:39 +00:00
Alex Bennée
37020ff153 linux-user/elfload: enable HWCAP_CPUID for AArch64
Userspace programs should (in theory) query the ELF HWCAP before
probing these registers. Now we have implemented them all make it
public.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190205190224.2198-6-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:39 +00:00
Alex Bennée
d040242eff target/arm: expose remaining CPUID registers as RAZ
There are a whole bunch more registers in the CPUID space which are
currently not used but are exposed as RAZ. To avoid too much
duplication we expand ARMCPRegUserSpaceInfo to understand glob
patterns so we only need one entry to tweak whole ranges of registers.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20190205190224.2198-5-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:39 +00:00
Alex Bennée
522641660c target/arm: expose MPIDR_EL1 to userspace
As this is a single register we could expose it with a simple ifdef
but we use the existing modify_arm_cp_regs mechanism for consistency.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20190205190224.2198-4-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:38 +00:00
Alex Bennée
6c5c0fec29 target/arm: expose CPUID registers to userspace
A number of CPUID registers are exposed to userspace by modern Linux
kernels thanks to the "ARM64 CPU Feature Registers" ABI. For QEMU's
user-mode emulation we don't need to emulate the kernels trap but just
return the value the trap would have done. To avoid too much #ifdef
hackery we process ARMCPRegInfo with a new helper (modify_arm_cp_regs)
before defining the registers. The modify routine is driven by a
simple data structure which describes which bits are exported and
which are fixed.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20190205190224.2198-3-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:38 +00:00
Alex Bennée
b5bd744042 target/arm: relax permission checks for HWCAP_CPUID registers
Although technically not visible to userspace the kernel does make
them visible via a trap and emulate ABI. We provide a new permission
mask (PL0U_R) which maps to PL0_R for CONFIG_USER builds and adjust
the minimum permission check accordingly.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20190205190224.2198-2-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:38 +00:00
Catherine Ho
abd5abc58c target/arm: Fix int128_make128 lo, hi order in paired_cmpxchg64_be
The lo,hi order is different from the comments. And in commit
1ec182c333 ("target/arm: Convert to HAVE_CMPXCHG128"), it changes
the original code logic. So just restore the old code logic before this
commit:
do_paired_cmpxchg64_be():
    cmpv = int128_make128(env->exclusive_high, env->exclusive_val);
    newv = int128_make128(new_hi, new_lo);

This fixes a bug that would only be visible for big-endian
AArch64 guest code.

Fixes: 1ec182c333 ("target/arm: Convert to HAVE_CMPXCHG128")
Signed-off-by: Catherine Ho <catherine.hecx@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 1548985244-24523-1-git-send-email-catherine.hecx@gmail.com
[PMM: added note that bug only affects BE guests]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:38 +00:00
Peter Maydell
831a2fca34 target/arm: Implement HACR_EL2
HACR_EL2 is a register with IMPDEF behaviour, which allows
implementation specific trapping to EL2. Implement it as RAZ/WI,
since QEMU's implementation has no extra traps. This also
matches what h/w implementations like Cortex-A53 and A57 do.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190205181218.8995-1-peter.maydell@linaro.org
2019-02-15 09:56:38 +00:00
Aaron Lindsay OS
62c7ec3488 target/arm: Fix CRn to be 14 for PMEVTYPER/PMEVCNTR
This bug was introduced in:
    commit 5ecdd3e47c
    target/arm: Finish implementation of PM[X]EVCNTR and PM[X]EVTYPER

Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 20190205135129.19338-1-aaron@os.amperecomputing.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-15 09:56:38 +00:00
Peter Maydell
0266c739ab MIPS queue for February 14th, 2019
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
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 =Py0Z
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Merge remote-tracking branch 'remotes/amarkovic/tags/mips-queue-feb-14-2019' into staging

MIPS queue for February 14th, 2019

# gpg: Signature made Thu 14 Feb 2019 16:48:39 GMT
# gpg:                using RSA key D4972A8967F75A65
# gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" [unknown]
# 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: 8526 FBF1 5DA3 811F 4A01  DD75 D497 2A89 67F7 5A65

* remotes/amarkovic/tags/mips-queue-feb-14-2019:
  tests/tcg: target/mips: Add tests for MSA logic instructions
  tests/tcg: target/mips: Add wrappers for MSA logic instructions
  tests/tcg: target/mips: Add tests for MSA interleave instructions
  tests/tcg: target/mips: Add wrappers for MSA interleave instructions
  tests/tcg: target/mips: Add tests for MSA bit counting instructions
  tests/tcg: target/mips: Add wrappers for MSA bit counting instructions
  tests/tcg: target/mips: Add a header with test utilities
  tests/tcg: target/mips: Add a header with test inputs
  tests/tcg: target/mips: Remove an unnecessary file
  target/mips: introduce MTTCG-enabled builds
  hw/mips_cpc: kick a VP when putting it into Run statewq
  target/mips: hold BQL in mips_vpe_wake()
  hw/mips_int: hold BQL for all interrupt requests
  target/mips: reimplement SC instruction emulation and use cmpxchg
  target/mips: compare virtual addresses in LL/SC sequence

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-14 18:33:00 +00:00
Peter Maydell
0d3e41d5ef - some configure updates (HAX/NetBSD, remove "wav", -Waddress-of-packed-member)
- remove deprecated options
 - some trace and error cleanup
 - typo fixes
 -----BEGIN PGP SIGNATURE-----
 
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-pull-request' into staging

- some configure updates (HAX/NetBSD, remove "wav", -Waddress-of-packed-member)
- remove deprecated options
- some trace and error cleanup
- typo fixes

# gpg: Signature made Thu 14 Feb 2019 10:46:50 GMT
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-pull-request:
  configure: improve usbfs check
  hw/sparc64: Explicitly set default_display = "std"
  hw/dma/i8257: Use qemu_log_mask(UNIMP) instead of fprintf
  wavcapture: Convert to error_report
  kvm: Add kvm_set_ioeventfd* traces
  HMP: Prepend errors with 'Error:'
  pckbd: Convert DPRINTF->trace
  configure: Make -Waddress-of-packed-member warnings be errors
  configure: Add HAX support in NetBSD
  configure: fix qemu-img name
  configure: remove handling of "wav" audio driver
  qemu-options: Remove deprecated option -clock
  qemu-deprecated: Remove -virtioconsole and -no-frame for good
  qapi: Fix qcow2 encryption doc typo

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-14 17:42:25 +00:00
Aleksandar Markovic
ba63292445 tests/tcg: target/mips: Add tests for MSA logic instructions
Add tests for MSA logic instructions. This includes following
instructions:

  * AND.V - logical AND
  * NOR.V - logical NOR
  * OR.V - logical OR
  * XOR.V - logical XOR

Each test consists of 80 test cases, so altogether there are 320
test cases.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
db37850bb4 tests/tcg: target/mips: Add wrappers for MSA logic instructions
Add wrappers for MSA logic instructions.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
fc76f48667 tests/tcg: target/mips: Add tests for MSA interleave instructions
Add tests for MSA interleave instructions. This includes following
instructions:

  * ILVEV.B - interleave even (bytes)
  * ILVEV.H - interleave even (halfwords)
  * ILVEV.W - interleave even (words)
  * ILVEV.D - interleave even (doublewords)
  * ILVOD.B - interleave odd (bytes)
  * ILVOD.H - interleave odd (halfwords)
  * ILVOD.W - interleave odd (words)
  * ILVOD.D - interleave odd (doublewords)
  * ILVL.B - interleave left (bytes)
  * ILVL.H - interleave left (halfwords)
  * ILVL.W - interleave left (words)
  * ILVL.D - interleave left (doublewords)
  * ILVR.B - interleave right (bytes)
  * ILVR.H - interleave right (halfwords)
  * ILVR.W - interleave right (words)
  * ILVR.D - interleave right (doublewords)

Each test consists of 80 test cases, so altogether there are 1280
test cases.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
afdc3c515a tests/tcg: target/mips: Add wrappers for MSA interleave instructions
Add wrappers for MSA interleave instructions.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
b62592ab65 tests/tcg: target/mips: Add tests for MSA bit counting instructions
Add tests for MSA bit counting instructions. This includes following
instructions:

  * NLOC.B - number of leading ones (bytes)
  * NLOC.H - number of leading ones (halfwords)
  * NLOC.W - number of leading ones (words)
  * NLOC.D - number of leading ones (doublewords)
  * NLZC.B - number of leading zeros (bytes)
  * NLZC.H - number of leading zeros (halfwords)
  * NLZC.W - number of leading zeros (words)
  * NLZC.D - number of leading zeros (doublewords)
  * PCNT.B - population count / number of ones (bytes)
  * PCNT.H - population count / number of ones (halfwords)
  * PCNT.W - population count / number of ones (words)
  * PCNT.D - population count / number of ones (doublewords)

Each test consists of 80 test cases, so altogether there are 960 test
cases.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
85c2a39300 tests/tcg: target/mips: Add wrappers for MSA bit counting instructions
Add a header that contains wrappers around MSA instructions assembler
invocations. For now, only bit counting instructions (NLOC, NLZC, and
PCNT; each in four data format flavors) are supported.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
08857c882d tests/tcg: target/mips: Add a header with test utilities
Add a header that contains test utilities. For now, it contains
only a function for checking and printing test results for bit
counting and similar MSA instructions.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
d33f672861 tests/tcg: target/mips: Add a header with test inputs
The file tests/tcg/mips/include/test_inputs.h is planned to
contain various test inputs. For now, it contains 64 128-bit
pattern inputs (alternating groups od ones and zeroes) and
16 128-bit random inputs.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
51a0e80c6e tests/tcg: target/mips: Remove an unnecessary file
Remove a file that was added long time ago by mistake. The commit
that introduced this file was commit d70080c4 (from 2012).

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:37 +01:00
Aleksandar Markovic
0454728c22 target/mips: introduce MTTCG-enabled builds
Introduce MTTCG-enabled QEMU builds for mips32, mipsn32, and mips64.

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-02-14 17:47:28 +01:00
Miodrag Dinic
f5117fd285 hw/mips_cpc: kick a VP when putting it into Run statewq
While testing mttcg VP0 could get stuck in a loop waiting for other
VPs to come up (which never actually happens). To fix this, kick VPs
while they are being powered up by Cluster Power Controller in an
async task which is triggered once the host thread is being spawned.

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-02-14 17:47:28 +01:00
Goran Ferenc
41931c0137 target/mips: hold BQL in mips_vpe_wake()
Hold BQL whenever mips_vpe_wake() is invoked.

Without this patch, MIPS MT with MTTCG enabled triggers an abort in
tcg_handle_interrupt() due to an unlocked access to cpu_interrupt().
This patch makes sure that the BQL is held in this case.

Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com>
Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-02-14 17:47:28 +01:00
Aleksandar Markovic
215581bdf1 hw/mips_int: hold BQL for all interrupt requests
Make sure BQL is held for all interrupt requests.

For MTTCG-enabled configurations, handling soft and hard interrupts
between vCPUs must be properly locked. By acquiring BQL, make sure
all paths triggering an IRQ are synchronized.

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-02-14 17:47:28 +01:00
Leon Alrae
33a07fa2db target/mips: reimplement SC instruction emulation and use cmpxchg
Completely rewrite conditional stores handling. Use cmpxchg.

This eliminates need for separate implementations of SC instruction
emulation for user and system emulation.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-14 17:47:28 +01:00
Leon Alrae
c7c7e1e9a5 target/mips: compare virtual addresses in LL/SC sequence
Do only virtual addresses comaprisons in LL/SC sequence emulations.

Until this patch, physical addresses had been compared in SC part of
LL/SC sequence, even though such comparisons could be avoided. Getting
rid of them allows throwing away SC helpers and having common SC
implementations in user and system mode, avoiding the need for two
separate implementations selected by #ifdef CONFIG_USER_ONLY.

Correct guest software should not rely on LL/SC if they accesses the
same physical address via different virtual addresses or if page
mapping gets changed between LL/SC due to manipulating TLB entries.
MIPS Instruction Set Manual clearly says that an RMW sequence must
use the same address in the LL and SC (virtual address, physical
address, cacheability and coherency attributes must be identical).
Otherwise, the result of the SC is not predictable. This patch takes
advantage of this fact and removes the virtual->physical address
translation from SC helper.

lladdr served as Coprocessor 0 LLAddr register which captures physical
address of the most recent LL instruction, and also lladdr was used
for comparison with following SC physical address. This patch changes
the meaning of lladdr - now it will only keep the virtual address of
the most recent LL. Additionally, CP0_LLAddr field is introduced which
is the actual Coperocessor 0 LLAddr register that guest can access.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-02-14 17:47:28 +01:00
Peter Maydell
16abfb36c5 Pull request
Fix a virtio-blk migration regression.
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJcZO93AAoJEJykq7OBq3PIQygH/0/KvpFrVZK0a73yZ361sNuY
 w6N3OCo2TUMRBzmaTp31njJWg48s9kiyvtjcsALBsN53paGGfN+7W6UZNpaNWfGM
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 YKF8gZkJ2Jh4lhNl2tFC6qTaiPjwI+nzLmKp/r4M1ReSJ6JyzKhMkLsrq8epHOA=
 =Lxlz
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

Fix a virtio-blk migration regression.

# gpg: Signature made Thu 14 Feb 2019 04:32:55 GMT
# gpg:                using RSA key 9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  virtio-blk: set correct config size for the host driver

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-14 15:59:24 +00:00
Peter Maydell
7e407466b1 Fix slirp on windows
Marc-André Lureau (2):
   slirp: remove slirp_ prefix for socket wrappers
   slirp: wrap the remaining socket functions
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 mrj7Ngdrkz12mYslEBkXieFexjNiXVhcHZrTnj49k4etYosPcokGFJf8LMdx1/C5
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 TFtQ5XFPy/+eqbsnfqpi18rzWMnPhiiQvj3DijIgNhFbudC9x+GmnWCwiqEcPp7l
 +r40j2B3UrYzfmcmYnq2XWbnXiRnDn0c34dacjgnNBu8UhKeYvs=
 =XTPb
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/thibault/tags/samuel-thibault' into staging

Fix slirp on windows

Marc-André Lureau (2):
  slirp: remove slirp_ prefix for socket wrappers
  slirp: wrap the remaining socket functions

# gpg: Signature made Wed 13 Feb 2019 18:31:21 GMT
# gpg:                using RSA key E61DBB15D4172BDEC97E92D9DB550E89F0FA54F3
# gpg: Good signature from "Samuel Thibault <samuel.thibault@aquilenet.fr>" [unknown]
# gpg:                 aka "Samuel Thibault <sthibault@debian.org>" [marginal]
# gpg:                 aka "Samuel Thibault <samuel.thibault@gnu.org>" [unknown]
# gpg:                 aka "Samuel Thibault <samuel.thibault@inria.fr>" [marginal]
# gpg:                 aka "Samuel Thibault <samuel.thibault@labri.fr>" [marginal]
# gpg:                 aka "Samuel Thibault <samuel.thibault@ens-lyon.org>" [marginal]
# gpg:                 aka "Samuel Thibault <samuel.thibault@u-bordeaux.fr>" [unknown]
# 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: 900C B024 B679 31D4 0F82  304B D017 8C76 7D06 9EE6
#      Subkey fingerprint: E61D BB15 D417 2BDE C97E  92D9 DB55 0E89 F0FA 54F3

* remotes/thibault/tags/samuel-thibault:
  slirp: wrap the remaining socket functions
  slirp: remove slirp_ prefix for socket wrappers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-14 15:22:29 +00:00
Peter Maydell
c4c5f6573a Chardev fixes
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcZENcAAoJENro4Ql1lpzlR1IP/3VJbeI4RjOoO/Y1TLLF6y9u
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 txT8YiybKbM2tHc2M8Y6fL0I/cKWsyqJcTnpgU0RfVHT1HiGYpXnHbRBQWw5VFO7
 MWTCJKQ23KNXZDtvj42jaMDe+ZU4ptfsI750ZQ22f/HFAd/ox/4Lqb4n2pWac4F/
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 8dC7yoZY7QS/vP4+iy0l+dTImsKOdTCqG+sGoy8SCR8EZAPDJauUNxbRjT/qVkim
 OfkHpadS3kZEOkrVhLdLRVfZza6EHgVj3uY/FpvsCNJycQ9BpYBm8SCJN/TUDZNB
 92z2KZaYFkIEXiWP8XX5oRbPKCDZWariuMdv8XXnOnafU/Gr1Pw5flSjNzB/NPh5
 QWFqg+KEqJ4szkW5uy/n
 =I5Qi
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/elmarco/tags/chardev-pull-request' into staging

Chardev fixes

# gpg: Signature made Wed 13 Feb 2019 16:18:36 GMT
# gpg:                using RSA key DAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/chardev-pull-request: (25 commits)
  char-pty: remove write_lock usage
  char-pty: remove the check for connection on write
  chardev: add a note about frontend sources and context switch
  terminal3270: do not use backend timer sources
  char: update the mux handlers in class callback
  chardev/wctablet: Fix a typo
  char: allow specifying a GMainContext at opening time
  chardev: ensure termios is fully initialized
  tests: expand coverage of socket chardev test
  chardev: fix race with client connections in tcp_chr_wait_connected
  chardev: disallow TLS/telnet/websocket with tcp_chr_wait_connected
  chardev: honour the reconnect setting in tcp_chr_wait_connected
  chardev: use a state machine for socket connection state
  chardev: split up qmp_chardev_open_socket connection code
  chardev: split tcp_chr_wait_connected into two methods
  chardev: remove unused 'sioc' variable & cleanup paths
  chardev: ensure qemu_chr_parse_compat reports missing driver error
  chardev: remove many local variables in qemu_chr_parse_socket
  chardev: forbid 'wait' option with client sockets
  chardev: forbid 'reconnect' option with server sockets
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-14 14:34:32 +00:00
Peter Maydell
4856c2c70c RISC-V Patches for the 4.0 Soft Freeze, Part 1
This patch set contains a handful of patches I've collected over the
 last few weeks.  There's nothing really fundamental, but I thought it
 would be good to send these out now as there are some other patch sets
 on the mailing list that are getting ready to go.
 
 As far as the actual patches, there's:
 
 * A set that cleans up our FS dirty-mode handling.
 * Support for writing MISA.
 * The removal of Michael as a maintainer.
 * A fix to {m,s}counteren handling.
 * A fix to make sure the kernel's start address is computed correctly on
   32-bit targets.
 
 This makes my "RISC-V Patches for 3.2, Part 3" pull request defunct, as
 it contains the same patches but based on a newer master.  As usual,
 I've tested this using a Fedora boot on the latest Linux.  This patch
 set does not include Bastian's decodetree patches because there were
 some merge conflicts and while I've cleaned them up I want to get a
 round of review first.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEAM520YNJYN/OiG3470yhUCzLq0EFAlxkOc4THHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRDvTKFQLMurQZwhEACZtcbDNgXFnV3lpN4mQ7np3EYUsiFv
 lEGip+/iBlTp2IWA7pXxw4wTV584/0uK9Y7errHoIB16JSNPpK1si5RTiUVWe8yo
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 syEZaIPiIn+nCw==
 =Q/8G
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-4.0-sf1' into staging

RISC-V Patches for the 4.0 Soft Freeze, Part 1

This patch set contains a handful of patches I've collected over the
last few weeks.  There's nothing really fundamental, but I thought it
would be good to send these out now as there are some other patch sets
on the mailing list that are getting ready to go.

As far as the actual patches, there's:

* A set that cleans up our FS dirty-mode handling.
* Support for writing MISA.
* The removal of Michael as a maintainer.
* A fix to {m,s}counteren handling.
* A fix to make sure the kernel's start address is computed correctly on
  32-bit targets.

This makes my "RISC-V Patches for 3.2, Part 3" pull request defunct, as
it contains the same patches but based on a newer master.  As usual,
I've tested this using a Fedora boot on the latest Linux.  This patch
set does not include Bastian's decodetree patches because there were
some merge conflicts and while I've cleaned them up I want to get a
round of review first.

# gpg: Signature made Wed 13 Feb 2019 15:37:50 GMT
# gpg:                using RSA key 00CE76D1834960DFCE886DF8EF4CA1502CCBAB41
# gpg:                issuer "palmer@dabbelt.com"
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>" [unknown]
# gpg:                 aka "Palmer Dabbelt <palmer@sifive.com>" [unknown]
# 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-4.0-sf1:
  riscv: Ensure the kernel start address is correctly cast
  target/riscv: fix counter-enable checks in ctr()
  MAINTAINERS: Remove Michael Clark as a RISC-V Maintainer
  RISC-V: Add misa runtime write support
  RISC-V: Add misa.MAFD checks to translate
  RISC-V: Add misa to DisasContext
  RISC-V: Add priv_ver to DisasContext
  RISC-V: Use riscv prefix consistently on cpu helpers
  RISC-V: Implement mstatus.TSR/TW/TVM
  RISC-V: Mark mstatus.fs dirty
  RISC-V: Split out mstatus_fs from tb_flags

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-14 13:15:45 +00:00
Thomas Petazzoni
96566d09aa configure: improve usbfs check
The current check to test if usbfs support should be compiled or not
solely relies on the presence of <linux/usbdevice_fs.h>, without
actually checking that all definition used by Qemu are provided by
this header file.

With sufficiently old kernel headers, <linux/usbdevice_fs.h> may be
present, but some of the definitions needed by Qemu may not be
available.

This commit improves the check by building a small program that
actually tests whether the necessary definitions are available.

In addition, it fixes a bug where have_usbfs was set to "yes"
regardless of the result of the test.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190213211827.20300-1-thomas.petazzoni@bootlin.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 11:46:30 +01:00
Thomas Huth
9aed808e35 hw/sparc64: Explicitly set default_display = "std"
The sun4uv_init() function expects vga_interface_type to be either
VGA_STD or VGA_NONE and sets up a stdvga device or no vga card
accordingly.
However, the code in vl.c prefers the Cirrus VGA card to stdvga if
it is available and the user and the machine did not specify anything
else.
So far this has not been a problem, since the Cirrus VGA was not linked
into the sparc64 target. But with the upcoming Kconfig build system,
all theoretically possible PCI cards will be enabled by default, so the
Cirrus VGA card might become available on the sparc64 target, too. vl.c
then picks the wrong card, causing sun4uv_init() to abort.
Thus let's make it explicit that we always want stdvga for sparc64 and
so set default_display = "std" for these machines.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <1550041639-10232-1-git-send-email-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 11:46:30 +01:00
Philippe Mathieu-Daudé
c1a00ff85b hw/dma/i8257: Use qemu_log_mask(UNIMP) instead of fprintf
Avoid to clutter stdout until explicitly requested (with -d unimp):

  $ qemu-system-mips64el -M fulong2e -bios pmon_2e.bin
  dma: command df not supported
  dma: command df not supported
  dma: command df not supported
  dma: command df not supported

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20190212145322.30974-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 11:46:30 +01:00
Dr. David Alan Gilbert
8beaac1228 wavcapture: Convert to error_report
Kill off a pile of monitor_printf's and cur_mon usage.
The only one left in wavcapture.c is the info case.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20170320173840.3626-3-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 11:46:30 +01:00
Dr. David Alan Gilbert
876d16cd31 kvm: Add kvm_set_ioeventfd* traces
Add a couple of traces around the kvm_set_ioeventfd* calls.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20190212134758.10514-4-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 11:46:30 +01:00
Dr. David Alan Gilbert
66363e9a43 HMP: Prepend errors with 'Error:'
Always make error messages start with 'Error:' as a fallback
to make sure that anything parsing them can tell it failed.

Note: Some places don't use hmp_handle_error

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20190212134758.10514-3-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 11:46:30 +01:00
Dr. David Alan Gilbert
65b182c379 pckbd: Convert DPRINTF->trace
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20181016112232.23241-1-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 11:46:30 +01:00
Peter Maydell
2911b3d3ab configure: Make -Waddress-of-packed-member warnings be errors
We have now managed to eradicate all the places in the codebase
that triggered clang's -Waddress-of-packed-member warning. Remove
the compiler flag that exempted it from our usual -Werror policy.
This will prevent any new problematic code being added in future.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190208132112.31493-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 11:46:25 +01:00
Peter Maydell
190ff53829 Convert to decodetree.
Fix signed overflow conditions.
 Fix dcor.
 Add CPU MIE to PCI address space.
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJcYznvAAoJEGTfOOivfiFf0hQH/38bXba1LZunQcMA8A+E/y/a
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 HnfvrNXQCs4j9DDQ+5MzZuQ/xTYoRqZ433PxN+2JW0oWGT5mCbqnhAwg8qs41HUd
 meP282gG3juha7ARYJ9BNj88ltUKFiMm10oZNLVC7heHmKMXmOUYF7mvrk53WI74
 1ldOjhxHWQtSLhx02P0AlnuGjKMxzYwXhVTVb9eYwxjb1baijsHJsYJN3zjo5MqZ
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 =EVRI
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/rth/tags/pull-hppa-20190212' into staging

Convert to decodetree.
Fix signed overflow conditions.
Fix dcor.
Add CPU MIE to PCI address space.

# gpg: Signature made Tue 12 Feb 2019 21:26:07 GMT
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-hppa-20190212: (24 commits)
  hw/hppa: forward requests to CPU HPA
  target/hppa: fix dcor instruction
  target/hppa: Fix addition '</<=' conditions
  target/hppa: Rearrange log conditions
  target/hppa: move GETPC to HELPER() functions
  target/hppa: Merge translate_one into hppa_tr_translate_insn
  target/hppa: Convert fp operate insns
  target/hppa: Convert fp fused multiply-add insns
  target/hppa: Convert halt/reset insns
  target/hppa: Convert fp indexed memory insns
  target/hppa: Convert offset memory insns
  target/hppa: Convert arithmetic immediate insns
  target/hppa: Convert direct and indirect branches
  target/hppa: Convert shift, extract, deposit insns
  target/hppa: Convert conditional branches
  target/hppa: Convert fp multiply-add
  target/hppa: Convert indexed memory insns
  target/hppa: Convert arithmetic/logical insns
  target/hppa: Convert memory management insns
  target/hppa: Unify specializations of OR
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-14 10:41:00 +00:00
Kamil Rytarowski
604a5b9978 configure: Add HAX support in NetBSD
The NetBSD support in Intel HAXM has beem merged upstream and is functional.

Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Message-Id: <20190207233704.29978-1-n54@gmx.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 10:47:14 +01:00
Cleber Rosa
8de73fa88a configure: fix qemu-img name
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190207193605.25676-3-crosa@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 10:44:42 +01:00
Cleber Rosa
41b0b34b26 configure: remove handling of "wav" audio driver
This looks like a leftover that was never implemented.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190207193605.25676-2-crosa@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-14 10:44:24 +01:00