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3 years agotarget/ppc: create an interrupt masking method for POWER8
Matheus Ferst [Tue, 11 Oct 2022 20:48:12 +0000 (17:48 -0300)]
target/ppc: create an interrupt masking method for POWER8

The new method is identical to ppc_next_unmasked_interrupt_generic,
processor-specific code will be added/removed in the following patches.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-13-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: add power-saving interrupt masking logic to p9_next_unmasked_interrupt
Matheus Ferst [Tue, 11 Oct 2022 20:48:11 +0000 (17:48 -0300)]
target/ppc: add power-saving interrupt masking logic to p9_next_unmasked_interrupt

Export p9_interrupt_powersave and use it in p9_next_unmasked_interrupt.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-12-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: move power-saving interrupt masking out of cpu_has_work_POWER9
Matheus Ferst [Tue, 11 Oct 2022 20:48:10 +0000 (17:48 -0300)]
target/ppc: move power-saving interrupt masking out of cpu_has_work_POWER9

Move the interrupt masking logic out of cpu_has_work_POWER9 in a new
method, p9_interrupt_powersave, that only returns an interrupt if it can
wake the processor from power-saving mode.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-11-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: remove generic architecture checks from p9_deliver_interrupt
Matheus Ferst [Tue, 11 Oct 2022 20:48:09 +0000 (17:48 -0300)]
target/ppc: remove generic architecture checks from p9_deliver_interrupt

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-10-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: remove unused interrupts from p9_deliver_interrupt
Matheus Ferst [Tue, 11 Oct 2022 20:48:08 +0000 (17:48 -0300)]
target/ppc: remove unused interrupts from p9_deliver_interrupt

Remove the following unused interrupts from the POWER9 interrupt
processing method:
- PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970 and POWER5p;
- Debug Interrupt: removed in Power ISA v2.07;
- Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined
  for embedded CPUs;
- Critical Doorbell Interrupt: removed in Power ISA v3.0;
- Programmable Interval Timer: 40x-only.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-9-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: create an interrupt deliver method for POWER9/POWER10
Matheus Ferst [Tue, 11 Oct 2022 20:48:07 +0000 (17:48 -0300)]
target/ppc: create an interrupt deliver method for POWER9/POWER10

The new method is identical to ppc_deliver_interrupt, processor-specific
code will be added/removed in the following patches.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-8-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: remove unused interrupts from p9_next_unmasked_interrupt
Matheus Ferst [Tue, 11 Oct 2022 20:48:06 +0000 (17:48 -0300)]
target/ppc: remove unused interrupts from p9_next_unmasked_interrupt

Remove the following unused interrupts from the POWER9 interrupt masking
method:
- PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970 and POWER5p;
- Debug Interrupt: removed in Power ISA v2.07;
- Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined
  for embedded CPUs;
- Critical Doorbell Interrupt: removed in Power ISA v3.0;
- Programmable Interval Timer: 40x-only.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-7-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: create an interrupt masking method for POWER9/POWER10
Matheus Ferst [Tue, 11 Oct 2022 20:48:05 +0000 (17:48 -0300)]
target/ppc: create an interrupt masking method for POWER9/POWER10

The new method is identical to ppc_next_unmasked_interrupt_generic,
processor-specific code will be added/removed in the following patches.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-6-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: prepare to split interrupt masking and delivery by excp_model
Matheus Ferst [Tue, 11 Oct 2022 20:48:04 +0000 (17:48 -0300)]
target/ppc: prepare to split interrupt masking and delivery by excp_model

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-5-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: split interrupt masking and delivery from ppc_hw_interrupt
Matheus Ferst [Tue, 11 Oct 2022 20:48:03 +0000 (17:48 -0300)]
target/ppc: split interrupt masking and delivery from ppc_hw_interrupt

Split ppc_hw_interrupt into an interrupt masking method,
ppc_next_unmasked_interrupt, and an interrupt processing method,
ppc_deliver_interrupt.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-4-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: always use ppc_set_irq to set env->pending_interrupts
Matheus Ferst [Tue, 11 Oct 2022 20:48:02 +0000 (17:48 -0300)]
target/ppc: always use ppc_set_irq to set env->pending_interrupts

Use ppc_set_irq to raise/clear interrupts to ensure CPU_INTERRUPT_HARD
will be set/reset accordingly.

Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20221011204829.1641124-3-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: define PPC_INTERRUPT_* values directly
Matheus Ferst [Tue, 11 Oct 2022 20:48:01 +0000 (17:48 -0300)]
target/ppc: define PPC_INTERRUPT_* values directly

This enum defines the bit positions in env->pending_interrupts for each
interrupt. However, except for the comparison in kvmppc_set_interrupt,
the values are always used as (1 << PPC_INTERRUPT_*). Define them
directly like that to save some clutter. No functional change intended.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20221011204829.1641124-2-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Use gvec to decode XVTSTDC[DS]P
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:40 +0000 (09:50 -0300)]
target/ppc: Use gvec to decode XVTSTDC[DS]P

Used gvec to translate XVTSTDCSP and XVTSTDCDP.

xvtstdcsp:
rept    loop    imm     master version  prev version        current version
25      4000    0       0,206200        0,040730 (-80.2%)    0,040740 (-80.2%)
25      4000    1       0,205120        0,053650 (-73.8%)    0,053510 (-73.9%)
25      4000    3       0,206160        0,058630 (-71.6%)    0,058570 (-71.6%)
25      4000    51      0,217110        0,191490 (-11.8%)    0,192320 (-11.4%)
25      4000    127     0,206160        0,191490 (-7.1%)     0,192640 (-6.6%)
8000    12      0       1,234719        0,418833 (-66.1%)    0,386365 (-68.7%)
8000    12      1       1,232417        1,435979 (+16.5%)    1,462792 (+18.7%)
8000    12      3       1,232760        1,766073 (+43.3%)    1,743990 (+41.5%)
8000    12      51      1,239281        1,319562 (+6.5%)     1,423479 (+14.9%)
8000    12      127     1,231708        1,315760 (+6.8%)     1,426667 (+15.8%)

xvtstdcdp:
rept    loop    imm     master version  prev version    current version
25      4000    0       0,159930        0,040830 (-74.5%)    0,040610 (-74.6%)
25      4000    1       0,160640        0,053670 (-66.6%)    0,053480 (-66.7%)
25      4000    3       0,160020        0,063030 (-60.6%)    0,062960 (-60.7%)
25      4000    51      0,160410        0,128620 (-19.8%)    0,127470 (-20.5%)
25      4000    127     0,160330        0,127670 (-20.4%)    0,128690 (-19.7%)
8000    12      0       1,190365        0,422146 (-64.5%)    0,388417 (-67.4%)
8000    12      1       1,191292        1,445312 (+21.3%)    1,428698 (+19.9%)
8000    12      3       1,188687        1,980656 (+66.6%)    1,975354 (+66.2%)
8000    12      51      1,191250        1,264500 (+6.1%)     1,355083 (+13.8%)
8000    12      127     1,197313        1,266729 (+5.8%)     1,349156 (+12.7%)

Overall, these instructions are the hardest ones to measure performance
as the gvec implementation is affected by the immediate. Above there are
5 different scenarios when it comes to immediate and 2 when it comes to
rept/loop combination. The immediates scenarios are: all bits are 0
therefore the target register should just be changed to 0, with 1 bit
set, with 2 bits set in a combination the new implementation can deal
with using gvec, 4 bits set and the new implementation can't deal with
it using gvec and all bits set. The rept/loop scenarios are high loop
and low rept (so it should spend more time executing it than translating
it) and high rept low loop (so it should spend more time translating it
than executing this code).
These comparisons are between the upstream version, a previous similar
implementation and a one with a cleaner code(this one).
For a comparison with o previous different implementation:
<20221010191356.83659-13-lucas.araujo@eldorado.org.br>

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-13-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Moved XSTSTDC[QDS]P to decodetree
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:39 +0000 (09:50 -0300)]
target/ppc: Moved XSTSTDC[QDS]P to decodetree

Moved XSTSTDCSP, XSTSTDCDP and XSTSTDCQP to decodetree and moved some of
its decoding away from the helper as previously the DCMX, XB and BF were
calculated in the helper with the help of cpu_env, now that part was
moved to the decodetree with the rest.

xvtstdcsp:
rept    loop    master             patch
8       12500   1,85393600         1,94683600 (+5.0%)
25      4000    1,78779800         1,92479000 (+7.7%)
100     1000    2,12775000         2,28895500 (+7.6%)
500     200     2,99655300         3,23102900 (+7.8%)
2500    40      6,89082200         7,44827500 (+8.1%)
8000    12     17,50585500        18,95152100 (+8.3%)

xvtstdcdp:
rept    loop    master             patch
8       12500   1,39043100         1,33539800 (-4.0%)
25      4000    1,35731800         1,37347800 (+1.2%)
100     1000    1,51514800         1,56053000 (+3.0%)
500     200     2,21014400         2,47906000 (+12.2%)
2500    40      5,39488200         6,68766700 (+24.0%)
8000    12     13,98623900        18,17661900 (+30.0%)

xvtstdcdp:
rept    loop    master             patch
8       12500   1,35123800         1,34455800 (-0.5%)
25      4000    1,36441200         1,36759600 (+0.2%)
100     1000    1,49763500         1,54138400 (+2.9%)
500     200     2,19020200         2,46196400 (+12.4%)
2500    40      5,39265700         6,68147900 (+23.9%)
8000    12     14,04163600        18,19669600 (+29.6%)

As some values are now decoded outside the helper and passed to it as an
argument the number of arguments of the helper increased, the number
of TCGop needed to load the arguments increased. I suspect that's why
the slow-down in the tests with a high REPT but low LOOP.

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-12-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Moved XVTSTDC[DS]P to decodetree
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:38 +0000 (09:50 -0300)]
target/ppc: Moved XVTSTDC[DS]P to decodetree

Moved XVTSTDCSP and XVTSTDCDP to decodetree an restructured the helper
to be simpler and do all decoding in the decodetree (so XB, XT and DCMX
are all calculated outside the helper).

Obs: The tests in this one are slightly different, these are the sum of
these instructions with all possible immediate and those instructions
are repeated 10 times.

xvtstdcsp:
rept    loop    master             patch
8       12500   2,76402100         2,70699100 (-2.1%)
25      4000    2,64867100         2,67884100 (+1.1%)
100     1000    2,73806300         2,78701000 (+1.8%)
500     200     3,44666500         3,61027600 (+4.7%)
2500    40      5,85790200         6,47475500 (+10.5%)
8000    12     15,22102100        17,46062900 (+14.7%)

xvtstdcdp:
rept    loop    master             patch
8       12500   2,11818000         1,61065300 (-24.0%)
25      4000    2,04573400         1,60132200 (-21.7%)
100     1000    2,13834100         1,69988100 (-20.5%)
500     200     2,73977000         2,48631700 (-9.3%)
2500    40      5,05067000         5,25914100 (+4.1%)
8000    12     14,60507800        15,93704900 (+9.1%)

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-11-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Use gvec to decode XVCPSGN[SD]P
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:37 +0000 (09:50 -0300)]
target/ppc: Use gvec to decode XVCPSGN[SD]P

Moved XVCPSGNSP and XVCPSGNDP to decodetree and used gvec to translate
them.

xvcpsgnsp:
rept    loop    master             patch
8       12500   0,00561400         0,00537900 (-4.2%)
25      4000    0,00562100         0,00400000 (-28.8%)
100     1000    0,00696900         0,00416300 (-40.3%)
500     200     0,02211900         0,00840700 (-62.0%)
2500    40      0,09328600         0,02728300 (-70.8%)
8000    12      0,27295300         0,06867800 (-74.8%)

xvcpsgndp:
rept    loop    master             patch
8       12500   0,00556300         0,00584200 (+5.0%)
25      4000    0,00482700         0,00431700 (-10.6%)
100     1000    0,00585800         0,00464400 (-20.7%)
500     200     0,01565300         0,00839700 (-46.4%)
2500    40      0,05766500         0,02430600 (-57.8%)
8000    12      0,19875300         0,07947100 (-60.0%)

Like the previous instructions there seemed to be a improvement on
translation time.

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-10-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Use gvec to decode XV[N]ABS[DS]P/XVNEG[DS]P
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:36 +0000 (09:50 -0300)]
target/ppc: Use gvec to decode XV[N]ABS[DS]P/XVNEG[DS]P

Moved XVABSSP, XVABSDP, XVNABSSP,XVNABSDP, XVNEGSP and XVNEGDP to
decodetree and used gvec to translate them.

xvabssp:
rept    loop    master             patch
8       12500   0,00477900         0,00476000 (-0.4%)
25      4000    0,00442800         0,00353300 (-20.2%)
100     1000    0,00478700         0,00366100 (-23.5%)
500     200     0,00973200         0,00649400 (-33.3%)
2500    40      0,03165200         0,02226700 (-29.7%)
8000    12      0,09315900         0,06674900 (-28.3%)

xvabsdp:
rept    loop    master             patch
8       12500   0,00475000         0,00474400 (-0.1%)
25      4000    0,00355600         0,00367500 (+3.3%)
100     1000    0,00444200         0,00366000 (-17.6%)
500     200     0,00942700         0,00732400 (-22.3%)
2500    40      0,02990000         0,02308500 (-22.8%)
8000    12      0,08770300         0,06683800 (-23.8%)

xvnabssp:
rept    loop    master             patch
8       12500   0,00494500         0,00492900 (-0.3%)
25      4000    0,00397700         0,00338600 (-14.9%)
100     1000    0,00421400         0,00353500 (-16.1%)
500     200     0,01048000         0,00707100 (-32.5%)
2500    40      0,03251500         0,02238300 (-31.2%)
8000    12      0,08889100         0,06469800 (-27.2%)

xvnabsdp:
rept    loop    master             patch
8       12500   0,00511000         0,00492700 (-3.6%)
25      4000    0,00398800         0,00381500 (-4.3%)
100     1000    0,00390500         0,00365900 (-6.3%)
500     200     0,00924800         0,00784600 (-15.2%)
2500    40      0,03138900         0,02391600 (-23.8%)
8000    12      0,09654200         0,05684600 (-41.1%)

xvnegsp:
rept    loop    master             patch
8       12500   0,00493900         0,00452800 (-8.3%)
25      4000    0,00369100         0,00366800 (-0.6%)
100     1000    0,00371100         0,00380000 (+2.4%)
500     200     0,00991100         0,00652300 (-34.2%)
2500    40      0,03025800         0,02422300 (-19.9%)
8000    12      0,09251100         0,06457600 (-30.2%)

xvnegdp:
rept    loop    master             patch
8       12500   0,00474900         0,00454400 (-4.3%)
25      4000    0,00353100         0,00325600 (-7.8%)
100     1000    0,00398600         0,00366800 (-8.0%)
500     200     0,01032300         0,00702400 (-32.0%)
2500    40      0,03125000         0,02422400 (-22.5%)
8000    12      0,09475100         0,06173000 (-34.9%)

This one to me seemed the opposite of the previous instructions, as it
looks like there was an improvement in the translation time (itself not
a surprise as operations were done twice before so there was the need to
translate twice as many TCGop)

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-9-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Move VABSDU[BHW] to decodetree and use gvec
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:35 +0000 (09:50 -0300)]
target/ppc: Move VABSDU[BHW] to decodetree and use gvec

Moved VABSDUB, VABSDUH and VABSDUW to decodetree and use gvec to
translate them.

vabsdub:
rept    loop    master             patch
8       12500   0,03601600         0,00688500 (-80.9%)
25      4000    0,03651000         0,00532100 (-85.4%)
100     1000    0,03666900         0,00595300 (-83.8%)
500     200     0,04305800         0,01244600 (-71.1%)
2500    40      0,06893300         0,04273700 (-38.0%)
8000    12      0,14633200         0,12660300 (-13.5%)

vabsduh:
rept    loop    master             patch
8       12500   0,02172400         0,00687500 (-68.4%)
25      4000    0,02154100         0,00531500 (-75.3%)
100     1000    0,02235400         0,00596300 (-73.3%)
500     200     0,02827500         0,01245100 (-56.0%)
2500    40      0,05638400         0,04285500 (-24.0%)
8000    12      0,13166000         0,12641400 (-4.0%)

vabsduw:
rept    loop    master             patch
8       12500   0,01646400         0,00688300 (-58.2%)
25      4000    0,01454500         0,00475500 (-67.3%)
100     1000    0,01545800         0,00511800 (-66.9%)
500     200     0,02168200         0,01114300 (-48.6%)
2500    40      0,04571300         0,04138800 (-9.5%)
8000    12      0,12209500         0,12178500 (-0.3%)

Same as VADDCUW and VSUBCUW, overall performance gain but it uses more
TCGop (4 before the patch, 6 after).

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-8-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Move VAVG[SU][BHW] to decodetree and use gvec
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:34 +0000 (09:50 -0300)]
target/ppc: Move VAVG[SU][BHW] to decodetree and use gvec

Moved the instructions VAVGUB, VAVGUH, VAVGUW, VAVGSB, VAVGSH, VAVGSW,
to decodetree and use gvec with them. For these one the right shift
had to be made before the sum as to avoid an overflow, so add 1 at the
end if any of the entries had 1 in its LSB as to replicate the "+ 1"
before the shift described by the ISA.

vavgub:
rept    loop    master             patch
8       12500   0,02616600         0,00754200 (-71.2%)
25      4000    0,02530000         0,00637700 (-74.8%)
100     1000    0,02604600         0,00790100 (-69.7%)
500     200     0,03189300         0,01838400 (-42.4%)
2500    40      0,06006900         0,06851000 (+14.1%)
8000    12      0,13941000         0,20548500 (+47.4%)

vavguh:
rept    loop    master             patch
8       12500   0,01818200         0,00780600 (-57.1%)
25      4000    0,01789300         0,00641600 (-64.1%)
100     1000    0,01899100         0,00787200 (-58.5%)
500     200     0,02527200         0,01828400 (-27.7%)
2500    40      0,05361800         0,06773000 (+26.3%)
8000    12      0,12886600         0,20291400 (+57.5%)

vavguw:
rept    loop    master             patch
8       12500   0,01423100         0,00776600 (-45.4%)
25      4000    0,01780800         0,00638600 (-64.1%)
100     1000    0,02085500         0,00787000 (-62.3%)
500     200     0,02737100         0,01828800 (-33.2%)
2500    40      0,05572600         0,06774200 (+21.6%)
8000    12      0,13101700         0,20311600 (+55.0%)

vavgsb:
rept    loop    master             patch
8       12500   0,03006000         0,00788600 (-73.8%)
25      4000    0,02882200         0,00637800 (-77.9%)
100     1000    0,02958000         0,00791400 (-73.2%)
500     200     0,03548800         0,01860400 (-47.6%)
2500    40      0,06360000         0,06850800 (+7.7%)
8000    12      0,13816500         0,20550300 (+48.7%)

vavgsh:
rept    loop    master             patch
8       12500   0,01965900         0,00776600 (-60.5%)
25      4000    0,01875400         0,00638700 (-65.9%)
100     1000    0,01952200         0,00786900 (-59.7%)
500     200     0,02562000         0,01760300 (-31.3%)
2500    40      0,05384300         0,06742800 (+25.2%)
8000    12      0,13240800         0,20330000 (+53.5%)

vavgsw:
rept    loop    master             patch
8       12500   0,01407700         0,00775600 (-44.9%)
25      4000    0,01762300         0,00640000 (-63.7%)
100     1000    0,02046500         0,00788500 (-61.5%)
500     200     0,02745600         0,01843000 (-32.9%)
2500    40      0,05375500         0,06820500 (+26.9%)
8000    12      0,13068300         0,20304900 (+55.4%)

These results to me seems to indicate that with gvec the results have a
slower translation but faster execution.

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-7-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Move VPRTYB[WDQ] to decodetree and use gvec
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:33 +0000 (09:50 -0300)]
target/ppc: Move VPRTYB[WDQ] to decodetree and use gvec

Moved VPRTYBW and VPRTYBD to use gvec and both of them and VPRTYBQ to
decodetree. VPRTYBW and VPRTYBD now also use .fni4 and .fni8,
respectively.

vprtybw:
rept    loop    master             patch
8       12500   0,01198900         0,00703100 (-41.4%)
25      4000    0,01070100         0,00571400 (-46.6%)
100     1000    0,01123300         0,00678200 (-39.6%)
500     200     0,01601500         0,01535600 (-4.1%)
2500    40      0,03872900         0,05562100 (43.6%)
8000    12      0,10047000         0,16643000 (65.7%)

vprtybd:
rept    loop    master             patch
8       12500   0,00757700         0,00788100 (4.0%)
25      4000    0,00652500         0,00669600 (2.6%)
100     1000    0,00714400         0,00825400 (15.5%)
500     200     0,01211000         0,01903700 (57.2%)
2500    40      0,03483800         0,07021200 (101.5%)
8000    12      0,09591800         0,21036200 (119.3%)

vprtybq:
rept    loop    master             patch
8       12500   0,00675600         0,00667200 (-1.2%)
25      4000    0,00619400         0,00643200 (3.8%)
100     1000    0,00707100         0,00751100 (6.2%)
500     200     0,01199300         0,01342000 (11.9%)
2500    40      0,03490900         0,04092900 (17.2%)
8000    12      0,09588200         0,11465100 (19.6%)

I wasn't expecting such a performance lost in both VPRTYBD and VPRTYBQ,
I'm not sure if it's worth to move those instructions. Comparing the
assembly of the helper with the TCGop they are pretty similar, so
I'm not sure why vprtybd took so much more time.

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-6-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Move VNEG[WD] to decodtree and use gvec
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:32 +0000 (09:50 -0300)]
target/ppc: Move VNEG[WD] to decodtree and use gvec

Moved the instructions VNEGW and VNEGD to decodetree and used gvec to
decode it.

vnegw:
rept    loop    master             patch
8       12500   0,01053200         0,00548400 (-47.9%)
25      4000    0,01030500         0,00390000 (-62.2%)
100     1000    0,01096300         0,00395400 (-63.9%)
500     200     0,01472000         0,00712300 (-51.6%)
2500    40      0,03809000         0,02147700 (-43.6%)
8000    12      0,09957100         0,06202100 (-37.7%)

vnegd:
rept    loop    master             patch
8       12500   0,00594600         0,00543800 (-8.5%)
25      4000    0,00575200         0,00396400 (-31.1%)
100     1000    0,00676100         0,00394800 (-41.6%)
500     200     0,01149300         0,00709400 (-38.3%)
2500    40      0,03441500         0,02169600 (-37.0%)
8000    12      0,09516900         0,06337000 (-33.4%)

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-5-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Move V(ADD|SUB)CUW to decodetree and use gvec
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:31 +0000 (09:50 -0300)]
target/ppc: Move V(ADD|SUB)CUW to decodetree and use gvec

This patch moves VADDCUW and VSUBCUW to decodtree with gvec using an
implementation based on the helper, with the main difference being
changing the -1 (aka all bits set to 1) result returned by cmp when
true to +1. It also implemented a .fni4 version of those instructions
and dropped the helper.

vaddcuw:
rept    loop    master             patch
8       12500   0,01008200         0,00612400 (-39.3%)
25      4000    0,01091500         0,00471600 (-56.8%)
100     1000    0,01332500         0,00593700 (-55.4%)
500     200     0,01998500         0,01275700 (-36.2%)
2500    40      0,04704300         0,04364300 (-7.2%)
8000    12      0,10748200         0,11241000 (+4.6%)

vsubcuw:
rept    loop    master             patch
8       12500   0,01226200         0,00571600 (-53.4%)
25      4000    0,01493500         0,00462100 (-69.1%)
100     1000    0,01522700         0,00455100 (-70.1%)
500     200     0,02384600         0,01133500 (-52.5%)
2500    40      0,04935200         0,03178100 (-35.6%)
8000    12      0,09039900         0,09440600 (+4.4%)

Overall there was a gain in performance, but the TCGop code was still
slightly bigger in the new version (it went from 4 to 5).

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-4-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Move VMH[R]ADDSHS instruction to decodetree
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:30 +0000 (09:50 -0300)]
target/ppc: Move VMH[R]ADDSHS instruction to decodetree

This patch moves VMHADDSHS and VMHRADDSHS to decodetree I couldn't find
a satisfactory implementation with TCG inline.

vmhaddshs:
rept    loop    master             patch
8       12500   0,02983400         0,02648500 (-11.2%)
25      4000    0,02946000         0,02518000 (-14.5%)
100     1000    0,03104300         0,02638000 (-15.0%)
500     200     0,04002000         0,03502500 (-12.5%)
2500    40      0,08090100         0,07562200 (-6.5%)
8000    12      0,19242600         0,18626800 (-3.2%)

vmhraddshs:
rept    loop    master             patch
8       12500   0,03078600         0,02851000 (-7.4%)
25      4000    0,02793200         0,02746900 (-1.7%)
100     1000    0,02886000         0,02839900 (-1.6%)
500     200     0,03714700         0,03799200 (+2.3%)
2500    40      0,07948000         0,07852200 (-1.2%)
8000    12      0,19049800         0,18813900 (-1.2%)

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-3-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: Moved VMLADDUHM to decodetree and use gvec
Lucas Mateus Castro (alqotel) [Wed, 19 Oct 2022 12:50:29 +0000 (09:50 -0300)]
target/ppc: Moved VMLADDUHM to decodetree and use gvec

This patch moves VMLADDUHM to decodetree a creates a gvec implementation
using mul_vec and add_vec.

rept    loop    master             patch
8       12500   0,01810500         0,00903100 (-50.1%)
25      4000    0,01739400         0,00747700 (-57.0%)
100     1000    0,01843600         0,00901400 (-51.1%)
500     200     0,02574600         0,01971000 (-23.4%)
2500    40      0,05921600         0,07121800 (+20.3%)
8000    12      0,15326700         0,21725200 (+41.7%)

The significant difference in performance when REPT is low and LOOP is
high I think is due to the fact that the new implementation has a higher
translation time, as when using a helper only 5 TCGop are used but with
the patch a total of 10 TCGop are needed (Power lacks a direct mul_vec
equivalent so this instruction is implemented with the help of 5 others,
vmuleu, vmulou, vmrgh, vmrgl and vpkum).

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-2-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: move msgsync to decodetree
Matheus Ferst [Thu, 6 Oct 2022 20:06:54 +0000 (17:06 -0300)]
target/ppc: move msgsync to decodetree

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221006200654.725390-7-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: move msgclrp/msgsndp to decodetree
Matheus Ferst [Thu, 6 Oct 2022 20:06:53 +0000 (17:06 -0300)]
target/ppc: move msgclrp/msgsndp to decodetree

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221006200654.725390-6-matheus.ferst@eldorado.org.br>
[danielhb: ppc32 build fix in trans_(MSGCLRP|MSGSNDP)]
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: move msgclr/msgsnd to decodetree
Matheus Ferst [Thu, 6 Oct 2022 20:06:52 +0000 (17:06 -0300)]
target/ppc: move msgclr/msgsnd to decodetree

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221006200654.725390-5-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: fix REQUIRE_HV macro definition
Matheus Ferst [Thu, 6 Oct 2022 20:06:51 +0000 (17:06 -0300)]
target/ppc: fix REQUIRE_HV macro definition

The macro is missing a '{' after the if condition. Any use of REQUIRE_HV
would cause a compilation error.

Fixes: fc34e81acd51 ("target/ppc: add macros to check privilege level")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221006200654.725390-4-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: fix msgsync insns flags
Matheus Ferst [Thu, 6 Oct 2022 20:06:50 +0000 (17:06 -0300)]
target/ppc: fix msgsync insns flags

This instruction was added by Power ISA 3.0, using PPC2_PRCNTL makes it
available for older processors, like de e5500 and e6500.

Fixes: 7af1e7b02264 ("target/ppc: add support for hypervisor doorbells on book3s CPUs")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221006200654.725390-3-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotarget/ppc: fix msgclr/msgsnd insns flags
Matheus Ferst [Thu, 6 Oct 2022 20:06:49 +0000 (17:06 -0300)]
target/ppc: fix msgclr/msgsnd insns flags

On Power ISA v2.07, the category for these instructions became
"Embedded.Processor Control" or "Book S".

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221006200654.725390-2-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
3 years agotests/qtest: libqtest: Correct the timeout unit of blocking receive calls for win32
Bin Meng [Fri, 28 Oct 2022 04:57:34 +0000 (12:57 +0800)]
tests/qtest: libqtest: Correct the timeout unit of blocking receive calls for win32

Some qtest cases don't get response from the QEMU executable under
test in time on Windows. It turns out that the socket receive call
got timeout before it receive the complete response.

The timeout value is supposed to be set to 50 seconds via the
setsockopt() call, but there is a difference among platforms.
The timeout unit of blocking receive calls is measured in
seconds on non-Windows platforms but milliseconds on Windows.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-10-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest: libqos: Do not build virtio-9p unconditionally
Bin Meng [Fri, 28 Oct 2022 04:57:33 +0000 (12:57 +0800)]
tests/qtest: libqos: Do not build virtio-9p unconditionally

At present the virtio-9p related codes are built into libqos
unconditionally. Change to build them conditionally by testing
the 'virtfs' config option.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-9-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest: migration-test: Make sure QEMU process "to" exited after migration is...
Xuzhou Cheng [Fri, 28 Oct 2022 04:57:32 +0000 (12:57 +0800)]
tests/qtest: migration-test: Make sure QEMU process "to" exited after migration is canceled

Make sure QEMU process "to" exited before launching another target
for migration in the test_multifd_tcp_cancel case.

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-8-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest: libqtest: Introduce qtest_wait_qemu()
Bin Meng [Fri, 28 Oct 2022 04:57:31 +0000 (12:57 +0800)]
tests/qtest: libqtest: Introduce qtest_wait_qemu()

Introduce an API for qtest to wait for the QEMU process to terminate.

Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-7-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest: Use EXIT_FAILURE instead of magic number
Bin Meng [Fri, 28 Oct 2022 04:57:30 +0000 (12:57 +0800)]
tests/qtest: Use EXIT_FAILURE instead of magic number

When migration fails, QEMU exits with a status code EXIT_FAILURE.
Change qtests to use the well-defined macro instead of magic number.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20221028045736.679903-6-bin.meng@windriver.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest: device-plug-test: Reverse the usage of double/single quotes
Bin Meng [Fri, 28 Oct 2022 04:57:29 +0000 (12:57 +0800)]
tests/qtest: device-plug-test: Reverse the usage of double/single quotes

The usage of double/single quotes in test_q35_pci_unplug_json_request()
should be reversed to work on both win32 and non-win32 platforms:

- The value of -device parameter needs to be surrounded by "" as
  Windows does not drop '' when passing it to QEMU which causes
  QEMU command line option parser failure.
- The JSON key/value pairs need to be surrounded by '' to make the
  JSON parser happy on Windows.

Fixes: a12f1a7e56b7 ("tests/x86: Add subtest with 'q35' machine type to device-plug-test")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-5-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest: Support libqtest to build and run on Windows
Bin Meng [Fri, 28 Oct 2022 04:57:28 +0000 (12:57 +0800)]
tests/qtest: Support libqtest to build and run on Windows

At present the libqtest codes were written to depend on several
POSIX APIs, including fork(), kill() and waitpid(). Unfortunately
these APIs are not available on Windows.

This commit implements the corresponding functionalities using
win32 native APIs. With this change, all qtest cases can build
successfully on a Windows host, and we can start qtest testing
on Windows now.

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-4-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest: Use send/recv for socket communication
Xuzhou Cheng [Fri, 28 Oct 2022 04:57:27 +0000 (12:57 +0800)]
tests/qtest: Use send/recv for socket communication

Socket communication in the libqtest and libqmp codes uses read()
and write() which work on any file descriptor on *nix, and sockets
in *nix are an example of a file descriptor.

However sockets on Windows do not use *nix-style file descriptors,
so read() and write() cannot be used on sockets on Windows.
Switch over to use send() and recv() instead which work on both
Windows and *nix.

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-3-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agoaccel/qtest: Support qtest accelerator for Windows
Xuzhou Cheng [Fri, 28 Oct 2022 04:57:26 +0000 (12:57 +0800)]
accel/qtest: Support qtest accelerator for Windows

Currently signal SIGIPI [=SIGUSR1] is used to kick the dummy CPU
when qtest accelerator is used. However SIGUSR1 is unsupported on
Windows. To support Windows, we add a QemuSemaphore CPUState::sem
to kick the dummy CPU instead for Windows.

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-2-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests: Add sndio to the FreeBSD CI containers / VM
Brad Smith [Tue, 25 Oct 2022 15:02:15 +0000 (11:02 -0400)]
tests: Add sndio to the FreeBSD CI containers / VM

Add sndio to the FreeBSD CI containers / VM

Signed-off-by: Brad Smith <brad@comstyle.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <Y1f6dxjvD01DtXyG@humpty.home.comstyle.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/vm: update openbsd to release 7.2
Brad Smith [Sun, 23 Oct 2022 05:00:07 +0000 (01:00 -0400)]
tests/vm: update openbsd to release 7.2

tests/vm: update openbsd to release 7.2

Signed-off-by: Brad Smith <brad@comstyle.com>
Message-Id: <Y1TKVwNKvk+euT/s@humpty.home.comstyle.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest/libqos/e1000e: Use e1000_regs.h
Akihiko Odaki [Thu, 13 Oct 2022 05:52:45 +0000 (14:52 +0900)]
tests/qtest/libqos/e1000e: Use e1000_regs.h

The register definitions in tests/qtest/libqos/e1000e.c had names
different from hw/net/e1000_regs.h, which made it hard to understand
what test codes corresponds to the implementation. Use
hw/net/e1000_regs.h from tests/qtest/libqos/e1000e.c to remove
these duplications.

E1000E_CTRL_EXT_TXLSFLOW is removed from E1000E_CTRL_EXT settings
because hw/net/e1000_regs.h does not have the definition and it is for
TCP segmentation offload, which does not matter for the implemented
tests.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20221013055245.28102-1-akihiko.odaki@daynix.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest/cxl-test: Remove temporary directories after testing
Thomas Huth [Wed, 12 Oct 2022 09:14:35 +0000 (11:14 +0200)]
tests/qtest/cxl-test: Remove temporary directories after testing

The cxl-test leaves some temporary directories behind. Let's
clean them up now!

Message-Id: <20221012091435.893570-1-thuth@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/qtest/tpm: Clean up remainders of swtpm
Thomas Huth [Wed, 12 Oct 2022 08:43:34 +0000 (10:43 +0200)]
tests/qtest/tpm: Clean up remainders of swtpm

After running "make check", there are remainders of the tpm
tests left in the /tmp directory, slowly filling it up.
Seems like "swtpm" leaves a ".lock" and a "tpm2-00.permall"
file behind, so that the g_rmdir() calls on the temporary
directories fail. Introduce a helper function to remove those
leftovers before doing the g_rmdir().

Message-Id: <20221012084334.794253-1-thuth@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agoMAINTAINERS: target/s390x/: add Ilya as reviewer
Christian Borntraeger [Wed, 19 Oct 2022 12:56:40 +0000 (14:56 +0200)]
MAINTAINERS: target/s390x/: add Ilya as reviewer

Ilya has volunteered to review TCG patches for s390x.

Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20221019125640.3014143-1-borntraeger@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agotests/tcg/s390x: Add a test for the vistr instruction
Thomas Huth [Wed, 12 Oct 2022 18:27:55 +0000 (20:27 +0200)]
tests/tcg/s390x: Add a test for the vistr instruction

This test can be used to verify that the change in the previous
commit is indeed fixing the problem with the M3 vs. M4 field
mixup.

Message-Id: <20221012182755.1014853-4-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
3 years agonet: stream: add QAPI events to report connection state
Laurent Vivier [Fri, 21 Oct 2022 09:09:22 +0000 (11:09 +0200)]
net: stream: add QAPI events to report connection state

The netdev reports NETDEV_STREAM_CONNECTED event when the backend
is connected, and NETDEV_STREAM_DISCONNECTED when it is disconnected.

The NETDEV_STREAM_CONNECTED event includes the destination address.

This allows a system manager like libvirt to detect when the server
fails.

For instance with passt:

{ 'execute': 'qmp_capabilities' }
{ "return": { } }
{ "timestamp": { "seconds": 1666341395, "microseconds": 505347 },
    "event": "NETDEV_STREAM_CONNECTED",
    "data": { "netdev-id": "netdev0",
        "addr": { "path": "/tmp/passt_1.socket", "type": "unix" } } }

[killing passt here]

{ "timestamp": { "seconds": 1666341430, "microseconds": 968694 },
    "event": "NETDEV_STREAM_DISCONNECTED",
    "data": { "netdev-id": "netdev0" } }

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: stream: move to QIO to enable additional parameters
Laurent Vivier [Fri, 21 Oct 2022 09:09:20 +0000 (11:09 +0200)]
net: stream: move to QIO to enable additional parameters

Use QIOChannel, QIOChannelSocket and QIONetListener.
This allows net/stream to use all the available parameters provided by
SocketAddress.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agoqemu-sockets: update socket_uri() and socket_parse() to be consistent
Laurent Vivier [Fri, 21 Oct 2022 09:09:19 +0000 (11:09 +0200)]
qemu-sockets: update socket_uri() and socket_parse() to be consistent

To be consistent with socket_uri(), add 'tcp:' prefix for inet type in
socket_parse(), by default socket_parse() use tcp when no prefix is
provided (format is host:port).

In socket_uri(), use 'vsock:' prefix for vsock type rather than 'tcp:'
because it makes a vsock address look like an inet address with CID
misinterpreted as host.
Goes back to commit 9aca82ba31 "migration: Create socket-address parameter"

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agoqemu-sockets: move and rename SocketAddress_to_str()
Laurent Vivier [Fri, 21 Oct 2022 09:09:18 +0000 (11:09 +0200)]
qemu-sockets: move and rename SocketAddress_to_str()

Rename SocketAddress_to_str() to socket_uri() and move it to
util/qemu-sockets.c close to socket_parse().

socket_uri() generates a string from a SocketAddress while
socket_parse() generates a SocketAddress from a string.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: dgram: add unix socket
Laurent Vivier [Fri, 21 Oct 2022 09:09:17 +0000 (11:09 +0200)]
net: dgram: add unix socket

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com> (QAPI schema)
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: dgram: move mcast specific code from net_socket_fd_init_dgram()
Laurent Vivier [Fri, 21 Oct 2022 09:09:16 +0000 (11:09 +0200)]
net: dgram: move mcast specific code from net_socket_fd_init_dgram()

It is less complex to manage special cases directly in
net_dgram_mcast_init() and net_dgram_udp_init().

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: dgram: make dgram_dst generic
Laurent Vivier [Fri, 21 Oct 2022 09:09:15 +0000 (11:09 +0200)]
net: dgram: make dgram_dst generic

dgram_dst is a sockaddr_in structure. To be able to use it with
unix socket, use a pointer to a generic sockaddr structure.

Rename it dest_addr, and store socket length in dest_len.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: stream: add unix socket
Laurent Vivier [Fri, 21 Oct 2022 09:09:14 +0000 (11:09 +0200)]
net: stream: add unix socket

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com> (QAPI schema)
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: stream: Don't ignore EINVAL on netdev socket connection
Stefano Brivio [Fri, 21 Oct 2022 09:09:13 +0000 (11:09 +0200)]
net: stream: Don't ignore EINVAL on netdev socket connection

Other errors are treated as failure by net_stream_client_init(),
but if connect() returns EINVAL, we'll fail silently. Remove the
related exception.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
[lvivier: applied to net/stream.c]
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: socket: Don't ignore EINVAL on netdev socket connection
Stefano Brivio [Fri, 21 Oct 2022 09:09:12 +0000 (11:09 +0200)]
net: socket: Don't ignore EINVAL on netdev socket connection

Other errors are treated as failure by net_socket_connect_init(),
but if connect() returns EINVAL, we'll fail silently. Remove the
related exception.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agoqapi: net: add stream and dgram netdevs
Laurent Vivier [Fri, 21 Oct 2022 09:09:11 +0000 (11:09 +0200)]
qapi: net: add stream and dgram netdevs

Copied from socket netdev file and modified to use SocketAddress
to be able to introduce new features like unix socket.

"udp" and "mcast" are squashed into dgram netdev, multicast is detected
according to the IP address type.
"listen" and "connect" modes are managed by stream netdev. An optional
parameter "server" defines the mode (off by default)

The two new types need to be parsed the modern way with -netdev, because
with the traditional way, the "type" field of netdev structure collides with
the "type" field of SocketAddress and prevents the correct evaluation of the
command line option. Moreover the traditional way doesn't allow to use
the same type (SocketAddress) several times with the -netdev option
(needed to specify "local" and "remote" addresses).

The previous commit paved the way for parsing the modern way, but
omitted one detail: how to pick modern vs. traditional, in
netdev_is_modern().

We want to pick based on the value of parameter "type".  But how to
extract it from the option argument?

Parsing the option argument, either the modern or the traditional way,
extracts it for us, but only if parsing succeeds.

If parsing fails, there is no good option.  No matter which parser we
pick, it'll be the wrong one for some arguments, and the error
reporting will be confusing.

Fortunately, the traditional parser accepts *anything* when called in
a certain way.  This maximizes our chance to extract the value of
"type", and in turn minimizes the risk of confusing error reporting.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: introduce qemu_set_info_str() function
Laurent Vivier [Fri, 21 Oct 2022 09:09:10 +0000 (11:09 +0200)]
net: introduce qemu_set_info_str() function

Embed the setting of info_str in a function.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agoqapi: net: introduce a way to bypass qemu_opts_parse_noisily()
Laurent Vivier [Fri, 21 Oct 2022 09:09:09 +0000 (11:09 +0200)]
qapi: net: introduce a way to bypass qemu_opts_parse_noisily()

As qemu_opts_parse_noisily() flattens the QAPI structures ("type" field
of Netdev structure can collides with "type" field of SocketAddress),
we introduce a way to bypass qemu_opts_parse_noisily() and use directly
visit_type_Netdev() to parse the backend parameters.

More details from Markus:

qemu_init() passes the argument of -netdev, -nic, and -net to
net_client_parse().

net_client_parse() parses with qemu_opts_parse_noisily(), passing
QemuOptsList qemu_netdev_opts for -netdev, qemu_nic_opts for -nic, and
qemu_net_opts for -net.  Their desc[] are all empty, which means any
keys are accepted.  The result of the parse (a QemuOpts) is stored in
the QemuOptsList.

Note that QemuOpts is flat by design.  In some places, we layer non-flat
on top using dotted keys convention, but not here.

net_init_clients() iterates over the stored QemuOpts, and passes them to
net_init_netdev(), net_param_nic(), or net_init_client(), respectively.

These functions pass the QemuOpts to net_client_init().  They also do
other things with the QemuOpts, which we can ignore here.

net_client_init() uses the opts visitor to convert the (flat) QemOpts to
a (non-flat) QAPI object Netdev.  Netdev is also the argument of QMP
command netdev_add.

The opts visitor was an early attempt to support QAPI in
(QemuOpts-based) CLI.  It restricts QAPI types to a certain shape; see
commit eb7ee2cbeb "qapi: introduce OptsVisitor".

A more modern way to support QAPI is qobject_input_visitor_new_str().
It uses keyval_parse() instead of QemuOpts for KEY=VALUE,... syntax, and
it also supports JSON syntax.  The former isn't quite as expressive as
JSON, but it's a lot closer than QemuOpts + opts visitor.

This commit paves the way to use of the modern way instead.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: simplify net_client_parse() error management
Laurent Vivier [Fri, 21 Oct 2022 09:09:08 +0000 (11:09 +0200)]
net: simplify net_client_parse() error management

All net_client_parse() callers exit in case of error.

Move exit(1) to net_client_parse() and remove error checking from
the callers.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: remove the @errp argument of net_client_inits()
Laurent Vivier [Fri, 21 Oct 2022 09:09:07 +0000 (11:09 +0200)]
net: remove the @errp argument of net_client_inits()

The only caller passes &error_fatal, so use this directly in the function.

It's what we do for -blockdev, -device, and -object.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: introduce convert_host_port()
Laurent Vivier [Fri, 21 Oct 2022 09:09:06 +0000 (11:09 +0200)]
net: introduce convert_host_port()

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovhost: Accept event idx flag
Eugenio Pérez [Thu, 20 Oct 2022 15:52:51 +0000 (17:52 +0200)]
vhost: Accept event idx flag

Enabling all the code path created before.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovhost: use avail event idx on vhost_svq_kick
Eugenio Pérez [Thu, 20 Oct 2022 15:52:50 +0000 (17:52 +0200)]
vhost: use avail event idx on vhost_svq_kick

So SVQ code knows if an event is needed.

The code is not reachable at the moment.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovhost: toggle device callbacks using used event idx
Eugenio Pérez [Thu, 20 Oct 2022 15:52:49 +0000 (17:52 +0200)]
vhost: toggle device callbacks using used event idx

Actually use the new field of the used ring and tell the device if SVQ
wants to be notified.

The code is not reachable at the moment.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovhost: allocate event_idx fields on vring
Eugenio Pérez [Thu, 20 Oct 2022 15:52:48 +0000 (17:52 +0200)]
vhost: allocate event_idx fields on vring

There was not enough room to accomodate them.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agonet: improve error message for missing netdev backend
Daniel P. Berrangé [Mon, 3 Oct 2022 10:06:12 +0000 (11:06 +0100)]
net: improve error message for missing netdev backend

The current message when using '-net user...' with SLIRP disabled at
compile time is:

  qemu-system-x86_64: -net user: Parameter 'type' expects a net backend type (maybe it is not compiled into this binary)

An observation is that we're using the 'netdev->type' field here which
is an enum value, produced after QAPI has converted from its string
form.

IOW, at this point in the code, we know that the user's specified
type name was a valid network backend. The only possible scenario that
can make the backend init function be NULL, is if support for that
backend was disabled at build time. Given this, we don't need to caveat
our error message with a 'maybe' hint, we can be totally explicit.

The use of QERR_INVALID_PARAMETER_VALUE doesn't really lend itself to
user friendly error message text. Since this is not used to set a
specific QAPI error class, we can simply stop using this pre-formatted
error text and provide something better.

Thus the new message is:

  qemu-system-x86_64: -net user: network backend 'user' is not compiled into this binary

The case of passing 'hubport' for -net is also given a message reminding
people they should have used -netdev/-nic instead, as this backend type
is only valid for the modern syntax.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovhost-vdpa: allow passing opened vhostfd to vhost-vdpa
Si-Wei Liu [Sat, 8 Oct 2022 07:58:58 +0000 (00:58 -0700)]
vhost-vdpa: allow passing opened vhostfd to vhost-vdpa

Similar to other vhost backends, vhostfd can be passed to vhost-vdpa
backend as another parameter to instantiate vhost-vdpa net client.
This would benefit the use case where only open file descriptors, as
opposed to raw vhost-vdpa device paths, are accessible from the QEMU
process.

(qemu) netdev_add type=vhost-vdpa,vhostfd=61,id=vhost-vdpa1

Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovdpa: Remove shadow CVQ command check
Eugenio Pérez [Thu, 20 Oct 2022 08:02:30 +0000 (10:02 +0200)]
vdpa: Remove shadow CVQ command check

The guest will see undefined behavior if it issue not negotiate
commands, bit it is expected somehow.

Simplify code deleting this check.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovdpa: Delete duplicated vdpa_feature_bits entry
Eugenio Pérez [Thu, 20 Oct 2022 08:00:58 +0000 (10:00 +0200)]
vdpa: Delete duplicated vdpa_feature_bits entry

This entry was duplicated on referenced commit. Removing it.

Fixes: 402378407dbd ("vhost-vdpa: multiqueue support")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovirtio-net: fix TX timer with tx_burst
Laurent Vivier [Thu, 20 Oct 2022 09:58:46 +0000 (11:58 +0200)]
virtio-net: fix TX timer with tx_burst

When virtio_net_flush_tx() reaches the tx_burst value all
the queue is not flushed and nothing restart the timer.

Fix that by doing for TX timer as we do for bottom half TX:
rearming the timer if we find any packet to send during the
virtio_net_flush_tx() call.

Fixes: e3f30488e5f8 ("virtio-net: Limit number of packets sent per TX flush")
Cc: alex.williamson@redhat.com
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agovirtio-net: fix bottom-half packet TX on asynchronous completion
Laurent Vivier [Thu, 20 Oct 2022 09:58:45 +0000 (11:58 +0200)]
virtio-net: fix bottom-half packet TX on asynchronous completion

When virtio-net is used with the socket netdev backend, the backend
can be busy and not able to collect new packets.

In this case, net_socket_receive() returns 0 and registers a poll function
to detect when the socket is ready again.

In virtio_net_tx_bh(), virtio_net_flush_tx() forwards the 0, the virtio
notifications are disabled and the function is not re-scheduled, waiting
for the backend to be ready.

When the socket netdev backend is again able to send packets, the poll
function re-starts to flush remaining packets. This is done by
calling virtio_net_tx_complete(). It re-enables notifications and calls
again virtio_net_flush_tx().

But it seems if virtio_net_flush_tx() reaches the tx_burst value all
the queue is not flushed and no new notification is sent to re-schedule
virtio_net_tx_bh(). Nothing re-start to flush the queue and remaining
packets are stuck in the queue.

To fix that, detect in virtio_net_tx_complete() if virtio_net_flush_tx()
has been stopped by tx_burst and if yes re-schedule the bottom half
function virtio_net_tx_bh() to flush the remaining packets.

This is what is done in virtio_net_tx_bh() when the virtio_net_flush_tx()
is synchronous, and completly by-passed when the operation needs to be
asynchronous.

Fixes: a697a334b3c4 ("virtio-net: Introduce a new bottom half packet TX")
Cc: alex.williamson@redhat.com
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
3 years agoblock/block-backend: blk_set_enable_write_cache is IO_CODE
Emanuele Giuseppe Esposito [Thu, 27 Oct 2022 07:27:26 +0000 (03:27 -0400)]
block/block-backend: blk_set_enable_write_cache is IO_CODE

blk_set_enable_write_cache() is defined as GLOBAL_STATE_CODE
but can be invoked from iothreads when handling scsi requests.
This triggers an assertion failure:

 0x00007fd6c3515ce1 in raise () from /lib/x86_64-linux-gnu/libc.so.6
 0x00007fd6c34ff537 in abort () from /lib/x86_64-linux-gnu/libc.so.6
 0x00007fd6c34ff40f in ?? () from /lib/x86_64-linux-gnu/libc.so.6
 0x00007fd6c350e662 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
 0x000056149e2cea03 in blk_set_enable_write_cache (wce=true, blk=0x5614a01c27f0)
   at ../src/block/block-backend.c:1949
 0x000056149e2d0a67 in blk_set_enable_write_cache (blk=0x5614a01c27f0,
   wce=<optimized out>) at ../src/block/block-backend.c:1951
 0x000056149dfe9c59 in scsi_disk_apply_mode_select (p=0x7fd6b400c00e "\004",
   page=<optimized out>, s=<optimized out>) at ../src/hw/scsi/scsi-disk.c:1520
 mode_select_pages (change=true, len=18, p=0x7fd6b400c00e "\004", r=0x7fd6b4001ff0)
   at ../src/hw/scsi/scsi-disk.c:1570
 scsi_disk_emulate_mode_select (inbuf=<optimized out>, r=0x7fd6b4001ff0) at
   ../src/hw/scsi/scsi-disk.c:1640
 scsi_disk_emulate_write_data (req=0x7fd6b4001ff0) at ../src/hw/scsi/scsi-disk.c:1934
 0x000056149e18ff16 in virtio_scsi_handle_cmd_req_submit (req=<optimized out>,
   req=<optimized out>, s=0x5614a12f16b0) at ../src/hw/scsi/virtio-scsi.c:719
 virtio_scsi_handle_cmd_vq (vq=0x7fd6bab92140, s=0x5614a12f16b0) at
   ../src/hw/scsi/virtio-scsi.c:761
 virtio_scsi_handle_cmd (vq=<optimized out>, vdev=<optimized out>) at
   ../src/hw/scsi/virtio-scsi.c:775
 virtio_scsi_handle_cmd (vdev=0x5614a12f16b0, vq=0x7fd6bab92140) at
   ../src/hw/scsi/virtio-scsi.c:765
 0x000056149e1a8aa6 in virtio_queue_notify_vq (vq=0x7fd6bab92140) at
   ../src/hw/virtio/virtio.c:2365
 0x000056149e3ccea5 in aio_dispatch_handler (ctx=ctx@entry=0x5614a01babe0,
   node=<optimized out>) at ../src/util/aio-posix.c:369
 0x000056149e3cd868 in aio_dispatch_ready_handlers (ready_list=0x7fd6c09b2680,
   ctx=0x5614a01babe0) at ../src/util/aio-posix.c:399
 aio_poll (ctx=0x5614a01babe0, blocking=blocking@entry=true) at
   ../src/util/aio-posix.c:713
 0x000056149e2a7796 in iothread_run (opaque=opaque@entry=0x56149ffde500) at
   ../src/iothread.c:67
 0x000056149e3d0859 in qemu_thread_start (args=0x7fd6c09b26f0) at
   ../src/util/qemu-thread-posix.c:504
 0x00007fd6c36b9ea7 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
 0x00007fd6c35d9aef in clone () from /lib/x86_64-linux-gnu/libc.so.6

Changing GLOBAL_STATE_CODE in IO_CODE is allowed, since GSC callers are
allowed to call IO_CODE.

Resolves: #1272

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20221027072726.2681500-1-eesposit@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Tested-by: Antoine Damhet <antoine.damhet@shadow.tech>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agomonitor: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:11 +0000 (14:37 +0200)]
monitor: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-25-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agovmdk: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:10 +0000 (14:37 +0200)]
vmdk: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-24-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agovhdx: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:09 +0000 (14:37 +0200)]
vhdx: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-23-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agovdi: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:08 +0000 (14:37 +0200)]
vdi: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-22-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoqed: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:07 +0000 (14:37 +0200)]
qed: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-21-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoqcow2: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:06 +0000 (14:37 +0200)]
qcow2: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-20-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoqcow: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:05 +0000 (14:37 +0200)]
qcow: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-19-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoparallels: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:04 +0000 (14:37 +0200)]
parallels: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-18-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agomirror: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:03 +0000 (14:37 +0200)]
mirror: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-17-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoblock: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:02 +0000 (14:37 +0200)]
block: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-16-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agocommit: switch to *_co_* functions
Alberto Faria [Thu, 13 Oct 2022 12:37:01 +0000 (14:37 +0200)]
commit: switch to *_co_* functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-15-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agovmdk: manually add more coroutine_fn annotations
Paolo Bonzini [Thu, 13 Oct 2022 12:37:00 +0000 (14:37 +0200)]
vmdk: manually add more coroutine_fn annotations

The validity of these was double-checked with Alberto Faria's static analyzer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-14-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoqcow2: manually add more coroutine_fn annotations
Paolo Bonzini [Thu, 13 Oct 2022 12:36:59 +0000 (14:36 +0200)]
qcow2: manually add more coroutine_fn annotations

The validity of these was double-checked with Alberto Faria's static
analyzer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-13-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoqcow: manually add more coroutine_fn annotations
Paolo Bonzini [Thu, 13 Oct 2022 12:36:58 +0000 (14:36 +0200)]
qcow: manually add more coroutine_fn annotations

get_cluster_offset() and decompress_cluster() are only called from
the read and write paths.

The validity of these was double-checked with Alberto Faria's static analyzer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-12-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoblkdebug: add missing coroutine_fn annotation for indirect-called functions
Paolo Bonzini [Thu, 13 Oct 2022 12:36:57 +0000 (14:36 +0200)]
blkdebug: add missing coroutine_fn annotation for indirect-called functions

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-11-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoqcow2: add coroutine_fn annotation for indirect-called functions
Alberto Faria [Thu, 13 Oct 2022 12:36:56 +0000 (14:36 +0200)]
qcow2: add coroutine_fn annotation for indirect-called functions

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-10-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoblock: add missing coroutine_fn annotation to BlockDriverState callbacks
Alberto Faria [Thu, 13 Oct 2022 12:36:55 +0000 (14:36 +0200)]
block: add missing coroutine_fn annotation to BlockDriverState callbacks

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-9-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agocoroutine-io: add missing coroutine_fn annotation to prototypes
Alberto Faria [Thu, 13 Oct 2022 12:36:54 +0000 (14:36 +0200)]
coroutine-io: add missing coroutine_fn annotation to prototypes

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-8-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agocoroutine-lock: add missing coroutine_fn annotation to prototypes
Alberto Faria [Thu, 13 Oct 2022 12:36:53 +0000 (14:36 +0200)]
coroutine-lock: add missing coroutine_fn annotation to prototypes

The functions are marked coroutine_fn in the definition.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-7-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoblock: add missing coroutine_fn annotation to prototypes
Alberto Faria [Thu, 13 Oct 2022 12:36:52 +0000 (14:36 +0200)]
block: add missing coroutine_fn annotation to prototypes

The functions are marked coroutine_fn in the definition.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-6-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agossh: add missing coroutine_fn annotation
Alberto Faria [Thu, 13 Oct 2022 12:36:51 +0000 (14:36 +0200)]
ssh: add missing coroutine_fn annotation

ssh_write is only called from ssh_co_writev.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-5-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agomonitor: add missing coroutine_fn annotation
Alberto Faria [Thu, 13 Oct 2022 12:36:50 +0000 (14:36 +0200)]
monitor: add missing coroutine_fn annotation

hmp_block_resize and hmp_screendump are defined as a ".coroutine = true" command,
so they must be coroutine_fn.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-4-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoblock: remove incorrect coroutine_fn annotation
Alberto Faria [Thu, 13 Oct 2022 12:36:49 +0000 (14:36 +0200)]
block: remove incorrect coroutine_fn annotation

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-3-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agobackup: remove incorrect coroutine_fn annotation
Alberto Faria [Thu, 13 Oct 2022 12:36:48 +0000 (14:36 +0200)]
backup: remove incorrect coroutine_fn annotation

The .set_speed callback is not called from coroutine.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221013123711.620631-2-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoblock/nfs: Fix 32-bit Windows build
Bin Meng [Thu, 8 Sep 2022 13:28:15 +0000 (21:28 +0800)]
block/nfs: Fix 32-bit Windows build

libnfs.h declares nfs_fstat() as the following for win32:

  int nfs_fstat(struct nfs_context *nfs, struct nfsfh *nfsfh,
                struct __stat64 *st);

The 'st' parameter should be of type 'struct __stat64'. The
codes happen to build successfully for 64-bit Windows, but it
does not build for 32-bit Windows.

Fixes: 6542aa9c75bc ("block: add native support for NFS")
Fixes: 18a8056e0bc7 ("block/nfs: cache allocated filesize for read-only files")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20220908132817.1831008-6-bmeng.cn@gmail.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoblock: remove bdrv_try_set_aio_context and replace it with bdrv_try_change_aio_context
Emanuele Giuseppe Esposito [Tue, 25 Oct 2022 08:49:52 +0000 (04:49 -0400)]
block: remove bdrv_try_set_aio_context and replace it with bdrv_try_change_aio_context

No functional change intended.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20221025084952.2139888-11-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
3 years agoblock: rename bdrv_child_try_change_aio_context in bdrv_try_change_aio_context
Emanuele Giuseppe Esposito [Tue, 25 Oct 2022 08:49:51 +0000 (04:49 -0400)]
block: rename bdrv_child_try_change_aio_context in bdrv_try_change_aio_context

No functional changes intended.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20221025084952.2139888-10-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>