Commit Graph

81264 Commits

Author SHA1 Message Date
Daniel Henrique Barboza ee6635b227 spapr_numa: forbid asymmetrical NUMA setups
The pSeries machine does not support asymmetrical NUMA
configurations. This doesn't make much of a different
since we're not using user input for pSeries NUMA setup,
but this will change in the next patches.

To avoid breaking existing setups, gate this change by
checking for legacy NUMA support.

Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20201007172849.302240-3-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:52:09 +11:00
Daniel Henrique Barboza 29bfe52a52 spapr: add spapr_machine_using_legacy_numa() helper
The changes to come to NUMA support are all guest visible. In
theory we could just create a new 5_1 class option flag to
avoid the changes to cascade to 5.1 and under. The reality is that
these changes are only relevant if the machine has more than one
NUMA node. There is no need to change guest behavior that has
been around for years needlesly.

This new helper will be used by the next patches to determine
whether we should retain the (soon to be) legacy NUMA behavior
in the pSeries machine. The new behavior will only be exposed
if:

- machine is pseries-5.2 and newer;
- more than one NUMA node is declared in NUMA state.

Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20201007172849.302240-2-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:52:09 +11:00
Cédric Le Goater 83fa6e2a9f ppc/pnv: Increase max firmware size
Builds enabling GCOV can be bigger than 4MB and the limit on FSP
systems is 16MB.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20201002091440.1349326-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz 35dce34fbc spapr: Add a return value to spapr_check_pagesize()
As recommended in "qapi/error.h", return true on success and false on
failure. This allows to reduce error propagation overhead in the callers.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-14-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz 451c690589 spapr: Add a return value to spapr_nvdimm_validate()
As recommended in "qapi/error.h", return true on success and false on
failure. This allows to reduce error propagation overhead in the callers.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-13-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz a5af92e2e9 spapr: Simplify error handling in spapr_cpu_core_realize()
As recommended in "qapi/error.h", add a bool return value to
spapr_realize_vcpu() and use it in spapr_cpu_core_realize()
in order to get rid of the error propagation overhead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-12-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz cfdc527473 spapr: Add a return value to spapr_set_vcpu_id()
As recommended in "qapi/error.h", return true on success and false on
failure. This allows to reduce error propagation overhead in the callers.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-11-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz ebd226d221 spapr: Simplify error handling in prop_get_fdt()
Use the return value of visit_check_struct() and visit_check_list()
for error checking instead of local_err. This allows to get rid of
the error propagation overhead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-10-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz 17548fe64a spapr: Add a return value to spapr_drc_attach()
As recommended in "qapi/error.h", return true on success and false on
failure. This allows to reduce error propagation overhead in the callers.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-9-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz a9c2cdace0 spapr: Simplify error handling in spapr_vio_busdev_realize()
Use the return value of spapr_irq_findone() and spapr_irq_claim()
to detect failures. This allows to reduce the error propagation
overhead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-8-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz 7e92da81be spapr: Simplify error handling in do_client_architecture_support()
Use the return value of ppc_set_compat_all() to check failures,
which is preferred over hijacking local_err.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-7-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz 121afbe487 spapr: Get rid of cas_check_pvr() error reporting
The cas_check_pvr() function has two purposes:
- finding the "best" logical PVR, ie. the most recent one supported by
  the guest for this CPU type
- checking if the guest supports the real PVR of this CPU type, which
  is just an optional extra information to workaround the lack of
  support for "compat" mode in PR KVM

This logic doesn't need error reporting, really. If we don't find a
suitable logical PVR, we return the special value 0 which is definitely
not a valid PVR. Let the caller decide on whether it should error out
or not.

This doesn't change the behavior.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-6-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz a3114923d4 spapr: Simplify error handling in callers of ppc_set_compat()
Now that ppc_set_compat() indicates success/failure with a return
value, use it and reduce error propagation overhead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-5-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz 899134eb49 ppc: Fix return value in cpu_post_load() error path
VMState handlers are supposed to return negative errno values on failure.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-4-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz 2c82e8df4d ppc: Add a return value to ppc_set_compat() and ppc_set_compat_all()
As recommended in "qapi/error.h", indicate success / failure with a
return value. Since ppc_set_compat() is called from a VMState handler,
let's make it an int so that it propagates any negative errno returned
by kvmppc_set_compat(). Do the same for ppc_set_compat_all() for
consistency, even if it isn't called in a context where a negative errno
is required on failure.

This will allow to simplify error handling in the callers.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-3-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Greg Kurz 9c4d1497e8 spapr: Fix error leak in spapr_realize_vcpu()
If spapr_irq_cpu_intc_create() fails, local_err isn't propagated and
thus leaked.

Fixes: 992861fb1e ("error: Eliminate error_propagate() manually")
Cc: armbru@redhat.com
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-2-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Fabiano Rosas f0638a0b6b spapr: Handle HPT allocation failure in nested guest
The nested KVM code does not yet support HPT guests. Calling the
KVM_CAP_PPC_ALLOC_HTAB ioctl currently leads to KVM setting the guest
as HPT and erroneously executing code in L1 that should only run in
hypervisor mode, leading to an exception in the L1 vcpu thread when it
enters the nested guest.

This can be reproduced with -machine max-cpu-compat=power8 in the L2
guest command line.

The KVM code has since been modified to fail the ioctl when running in
a nested environment so QEMU needs to be able to handle that. This
patch provides an error message informing the user about the lack of
support for HPT in nested guests.

Reported-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20200911043123.204162-1-farosas@linux.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 10:15:06 +11:00
Peter Maydell 497d415d76 target-arm queue:
* hw/ssi/npcm7xx_fiu: Fix handling of unsigned integer
  * hw/arm/fsl-imx25: Fix a typo
  * hw/arm/sbsa-ref : Fix SMMUv3 Initialisation
  * hw/arm/sbsa-ref : allocate IRQs for SMMUv3
  * hw/char/bcm2835_aux: Allow less than 32-bit accesses
  * hw/arm/virt: Implement kvm-steal-time
  * target/arm: Make '-cpu max' have a 48-bit PA
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20201008-1' into staging

target-arm queue:
 * hw/ssi/npcm7xx_fiu: Fix handling of unsigned integer
 * hw/arm/fsl-imx25: Fix a typo
 * hw/arm/sbsa-ref : Fix SMMUv3 Initialisation
 * hw/arm/sbsa-ref : allocate IRQs for SMMUv3
 * hw/char/bcm2835_aux: Allow less than 32-bit accesses
 * hw/arm/virt: Implement kvm-steal-time
 * target/arm: Make '-cpu max' have a 48-bit PA

# gpg: Signature made Thu 08 Oct 2020 21:40:31 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20201008-1:
  target/arm: Make '-cpu max' have a 48-bit PA
  hw/arm/virt: Implement kvm-steal-time
  tests/qtest: Restore aarch64 arm-cpu-features test
  hw/arm/virt: Move kvm pmu setup to virt_cpu_post_init
  hw/arm/virt: Move post cpu realize check into its own function
  target/arm/kvm: Make uncalled stubs explicitly unreachable
  linux headers: sync to 5.9-rc7
  hw/char/bcm2835_aux: Allow less than 32-bit accesses
  hw/arm/sbsa-ref : allocate IRQs for SMMUv3
  hw/arm/sbsa-ref : Fix SMMUv3 Initialisation
  hw/arm/fsl-imx25: Fix a typo
  hw/ssi/npcm7xx_fiu: Fix handling of unsigned integer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 21:41:20 +01:00
Peter Maydell d1b6b70175 target/arm: Make '-cpu max' have a 48-bit PA
QEMU supports a 48-bit physical address range, but we don't currently
expose it in the '-cpu max' ID registers (you get the same range as
Cortex-A57, which is 44 bits).

Set the ID_AA64MMFR0.PARange field to indicate 48 bits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201001160116.18095-1-peter.maydell@linaro.org
2020-10-08 21:40:01 +01:00
Peter Maydell e64cf4d569 Extend maximum gvec vector size
Fix i386 avx2 dupi
 Fix mips host user-only write detection
 Misc cleanups.
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20201008' into staging

Extend maximum gvec vector size
Fix i386 avx2 dupi
Fix mips host user-only write detection
Misc cleanups.

# gpg: Signature made Thu 08 Oct 2020 13:55:22 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# 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-tcg-20201008:
  accel/tcg: Fix computing of is_write for MIPS
  tcg: Remove TCG_TARGET_HAS_cmp_vec
  tcg/optimize: Fold dup2_vec
  tcg: Fix generation of dupi_vec for 32-bit host
  tcg/i386: Fix dupi for avx2 32-bit hosts
  tcg: Remove TCGOpDef.used
  tcg: Move some TCG_CT_* bits to TCGArgConstraint bitfields
  tcg: Remove TCG_CT_REG
  tcg: Move sorted_args into TCGArgConstraint.sort_index
  tcg: Drop union from TCGArgConstraint
  tcg: Adjust simd_desc size encoding

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 17:18:46 +01:00
Andrew Jones 68970d1e0d hw/arm/virt: Implement kvm-steal-time
We add the kvm-steal-time CPU property and implement it for machvirt.
A tiny bit of refactoring was also done to allow pmu and pvtime to
use the same vcpu device helper functions.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20201001061718.101915-7-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Andrew Jones 05889d15d1 tests/qtest: Restore aarch64 arm-cpu-features test
arm-cpu-features got dropped from the AArch64 tests during the meson
conversion shuffle.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20201001061718.101915-6-drjones@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Andrew Jones 946f1bb18c hw/arm/virt: Move kvm pmu setup to virt_cpu_post_init
Move the KVM PMU setup part of fdt_add_pmu_nodes() to
virt_cpu_post_init(), which is a more appropriate location. Now
fdt_add_pmu_nodes() is also named more appropriately, because it
no longer does anything but fdt node creation.

No functional change intended.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20201001061718.101915-5-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Andrew Jones fe11f058c5 hw/arm/virt: Move post cpu realize check into its own function
We'll add more to this new function in coming patches so we also
state the gic must be created and call it below create_gic().

No functional change intended.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20201001061718.101915-4-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Andrew Jones 281a3c330e target/arm/kvm: Make uncalled stubs explicitly unreachable
When we compile without KVM support !defined(CONFIG_KVM) we generate
stubs for functions that the linker will still encounter. Sometimes
these stubs can be executed safely and are placed in paths where they
get executed with or without KVM. Other functions should never be
called without KVM. Those functions should be guarded by kvm_enabled(),
but should also be robust to refactoring mistakes. Putting a
g_assert_not_reached() in the function should help. Additionally,
the g_assert_not_reached() calls may actually help the linker remove
some code.

We remove the stubs for kvm_arm_get/put_virtual_time(), as they aren't
necessary at all - the only caller is in kvm.c

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20201001061718.101915-3-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Andrew Jones 94c7fefcb4 linux headers: sync to 5.9-rc7
Update against Linux 5.9-rc7.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20201001061718.101915-2-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Philippe Mathieu-Daudé 3059344f01 hw/char/bcm2835_aux: Allow less than 32-bit accesses
The "BCM2835 ARM Peripherals" datasheet [*] chapter 2
("Auxiliaries: UART1 & SPI1, SPI2"), list the register
sizes as 3/8/16/32 bits. We assume this means this
peripheral allows 8-bit accesses.

This was not an issue until commit 5d971f9e67 which reverted
("memory: accept mismatching sizes in memory_region_access_valid").

The model is implemented as 32-bit accesses (see commit 97398d900c,
all registers are 32-bit) so replace MemoryRegionOps.valid as
MemoryRegionOps.impl, and re-introduce MemoryRegionOps.valid
with a 8/32-bit range.

[*] https://www.raspberrypi.org/app/uploads/2012/02/BCM2835-ARM-Peripherals.pdf

Fixes: 97398d900c ("bcm2835_aux: add emulation of BCM2835 AUX (aka UART1) block")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201002181032.1899463-1-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Graeme Gregory 04788fd5c5 hw/arm/sbsa-ref : allocate IRQs for SMMUv3
Original commit did not allocate IRQs for the SMMUv3 in the irqmap
effectively using irq 0->3 (shared with other devices). Assuming
original intent was to allocate unique IRQs then add an allocation
to the irqmap.

Fixes: e9fdf45324 ("hw/arm: Add arm SBSA reference machine, devices part")
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Graeme Gregory <graeme@nuviainc.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20201007100732.4103790-3-graeme@nuviainc.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Graeme Gregory b8bf3472cc hw/arm/sbsa-ref : Fix SMMUv3 Initialisation
SMMUv3 has an error in a previous patch where an i was transposed to a 1
meaning interrupts would not have been correctly assigned to the SMMUv3
instance.

Fixes: 48ba18e6d3 ("hw/arm/sbsa-ref: Simplify by moving the gic in the machine state")
Signed-off-by: Graeme Gregory <graeme@nuviainc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20201007100732.4103790-2-graeme@nuviainc.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Philippe Mathieu-Daudé 1ef6a40608 hw/arm/fsl-imx25: Fix a typo
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201002080935.1660005-1-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Philippe Mathieu-Daudé 1cb169b27a hw/ssi/npcm7xx_fiu: Fix handling of unsigned integer
Fix integer handling issues handling issue reported by Coverity:

  hw/ssi/npcm7xx_fiu.c: 162 in npcm7xx_fiu_flash_read()
  >>>     CID 1432730:  Integer handling issues  (NEGATIVE_RETURNS)
  >>>     "npcm7xx_fiu_cs_index(fiu, f)" is passed to a parameter that cannot be negative.
  162         npcm7xx_fiu_select(fiu, npcm7xx_fiu_cs_index(fiu, f));

  hw/ssi/npcm7xx_fiu.c: 221 in npcm7xx_fiu_flash_write()
  218         cs_id = npcm7xx_fiu_cs_index(fiu, f);
  219         trace_npcm7xx_fiu_flash_write(DEVICE(fiu)->canonical_path, cs_id, addr,
  220                                       size, v);
  >>>     CID 1432729:  Integer handling issues  (NEGATIVE_RETURNS)
  >>>     "cs_id" is passed to a parameter that cannot be negative.
  221         npcm7xx_fiu_select(fiu, cs_id);

Since the index of the flash can not be negative, return an
unsigned type.

Reported-by: Coverity (CID 1432729 & 1432730: NEGATIVE_RETURNS)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Havard Skinnemoen <hskinnemoen@google.com>
Message-id: 20200919132435.310527-1-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Kele Huang 62475e9d00 accel/tcg: Fix computing of is_write for MIPS
Detect all MIPS store instructions in cpu_signal_handler for all available
MIPS versions, and set is_write if encountering such store instructions.

This fixed the error while dealing with self-modified code for MIPS.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Kele Huang <kele.hwang@gmail.com>
Signed-off-by: Xu Zou <iwatchnima@gmail.com>
Message-Id: <20201002081420.10814-1-kele.hwang@gmail.com>
[rth: Use uintptr_t for pc to fix n32 build error.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson cae5d53b9e tcg: Remove TCG_TARGET_HAS_cmp_vec
The cmp_vec opcode is mandatory; this symbol is unused.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson 1dc4fe7012 tcg/optimize: Fold dup2_vec
When the two arguments are identical, this can be reduced to
dup_vec or to mov_vec from a tcg_constant_vec.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson a5b30d950c tcg: Fix generation of dupi_vec for 32-bit host
The definition of INDEX_op_dupi_vec is that it operates on
units of tcg_target_ulong -- in this case 32 bits.  It does
not work to use this for a uint64_t value that happens to be
small enough to fit in tcg_target_ulong.

Fixes: d2fd745fe8
Fixes: db432672dc
Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson f80d09b599 tcg/i386: Fix dupi for avx2 32-bit hosts
The previous change wrongly stated that 32-bit avx2 should have
used VPBROADCASTW.  But that's a 16-bit broadcast and we want a
32-bit broadcast.

Fixes: 7b60ef3264
Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson 70cad3c400 tcg: Remove TCGOpDef.used
The last user of this field disappeared in f69d277ece.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson bc2b17e6ea tcg: Move some TCG_CT_* bits to TCGArgConstraint bitfields
These are easier to set and test when they have their own fields.
Reduce the size of alias_index and sort_index to 4 bits, which is
sufficient for TCG_MAX_OP_ARGS.  This leaves only the bits indicating
constants within the ct field.

Move all initialization to allocation time, rather than init
individual fields in process_op_defs.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson 74a117906b tcg: Remove TCG_CT_REG
This wasn't actually used for anything, really.  All variable
operands must accept registers, and which are indicated by the
set in TCGArgConstraint.regs.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson 66792f90f1 tcg: Move sorted_args into TCGArgConstraint.sort_index
This uses an existing hole in the TCGArgConstraint structure
and will be convenient for keeping the data in one place.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson 9be0d08019 tcg: Drop union from TCGArgConstraint
The union is unused; let "regs" appear in the main structure
without the "u.regs" wrapping.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson e2e7168a21 tcg: Adjust simd_desc size encoding
With larger vector sizes, it turns out oprsz == maxsz, and we only
need to represent mismatch for oprsz <= 32.  We do, however, need
to represent larger oprsz and do so without reducing SIMD_DATA_BITS.

Reduce the size of the oprsz field and increase the maxsz field.
Steal the oprsz value of 24 to indicate equality with maxsz.

Tested-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Peter Maydell a1d22c668a machine + QOM queue, 2020-10-06
* QOM documentation fixes and cleanups (Eduardo Habkost)
 * user-mode: Prune build dependencies (Philippe Mathieu-Daudé)
 * qom: Improve error message (Philippe Mathieu-Daudé)
 * numa: hmat: require parent cache description before the next
   level one (Igor Mammedov)
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Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

machine + QOM queue, 2020-10-06

* QOM documentation fixes and cleanups (Eduardo Habkost)
* user-mode: Prune build dependencies (Philippe Mathieu-Daudé)
* qom: Improve error message (Philippe Mathieu-Daudé)
* numa: hmat: require parent cache description before the next
  level one (Igor Mammedov)

# gpg: Signature made Tue 06 Oct 2020 23:09:03 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (21 commits)
  numa: hmat: require parent cache description before the next level one
  kernel-doc: Remove $decl_type='type name' hack
  memory: Explicitly tag doc comments for structs
  qom: Explicitly tag doc comments for typedefs and structs
  kernel-doc: Handle function typedefs without asterisks
  kernel-doc: Handle function typedefs that return pointers
  docs/devel/qom: Avoid long lines
  docs/devel/qom: Remove usage of <code>
  docs/devel/qom: Use *emphasis* for emphasis
  docs/devel/qom: Fix indentation of code blocks
  docs/devel/qom: Fix indentation of bulleted list
  qom: Fix DECLARE_*CHECKER documentation
  qom: Improve error message displayed with missing object properties
  hw/core/cpu: Add missing 'exec/cpu-common.h' include
  hw/core/qdev-properties: Extract system-mode specific properties
  hw/core/qdev-properties: Export some integer-related functions
  hw/core/qdev-properties: Export qdev_prop_enum
  hw/core/qdev-properties: Export enum-related functions
  hw/core/qdev-properties: Fix code style
  hw/core/qdev-properties: Use qemu_strtoul() in set_pci_host_devaddr()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 11:32:54 +01:00
Peter Maydell 6eeea6725a * Don't stop at the first unbootable device, continue scanning
* Fix corner cases in booting from ECKD
 * s390x-ccw bios cleanup part 2​
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Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-10-06' into staging

* Don't stop at the first unbootable device, continue scanning
* Fix corner cases in booting from ECKD
* s390x-ccw bios cleanup part 2​

# gpg: Signature made Tue 06 Oct 2020 19:17:46 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2020-10-06:
  tests/qtest/cdrom: Add more s390x-related boot tests
  pc-bios/s390: Update the s390-ccw bios binaries
  pc-bios: s390x: Go into disabled wait when encountering a PGM exception
  pc-bios: s390x: Use reset PSW if avaliable
  pc-bios: s390x: Save PSW rework
  pc-bios: s390x: Fix bootmap.c zipl component entry data handling
  pc-bios/s390-ccw: break loop if a null block number is reached
  pc-bios/s390-ccw: fix off-by-one error
  pc-bios/s390-ccw/main: Remove superfluous call to enable_subchannel()
  pc-bios/s390-ccw: Allow booting in case the first virtio-blk disk is bad
  pc-bios/s390-ccw: Scan through all devices if no boot device specified
  pc-bios/s390-ccw: Do not bail out early if not finding a SCSI disk
  pc-bios/s390-ccw: Move the inner logic of find_subch() to a separate function
  pc-bios/s390-ccw: Introduce ENODEV define and remove guards of others
  pc-bios/s390-ccw: Move ipl-related code from main() into a separate function
  pc-bios/s390-ccw/Makefile: Compile with -std=gnu99, -fwrapv and -fno-common

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-06 21:13:34 +01:00
Thomas Huth eb32abd8d9 tests/qtest/cdrom: Add more s390x-related boot tests
Let's add two new tests:

1) Booting with "bootindex" is the architected default behavior on the
s390x target, so we should have at least one test that is using the
"bootindex" property.

2) The s390-ccw bios used to fail when other unbootable devices have
been specified before the bootable device (without "bootindex"). Now
that the s390-ccw bios is a little bit smarter here, we should test
this scenario, too, to avoid regressions.

Message-Id: <20200806105349.632-10-thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-06 20:14:48 +02:00
Thomas Huth 6e05891c31 pc-bios/s390: Update the s390-ccw bios binaries
Make sure that the binaries match the current state of the sources.

Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-06 20:14:48 +02:00
Janosch Frank 25f5adea5a pc-bios: s390x: Go into disabled wait when encountering a PGM exception
Let's setup a PGM PSW, so we won't load 0s when a program exception
happens. Instead we'll load a disabled wait PSW.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201006094249.50640-5-frankja@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-06 20:14:48 +02:00
Janosch Frank 42ab98e7d7 pc-bios: s390x: Use reset PSW if avaliable
If a blob provides a reset PSW then we should use it instead of
branching to the PSW address and using our own mask.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201006094249.50640-4-frankja@linux.ibm.com>
[thuth: Use Elvis operator to shorten long line]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-06 20:14:17 +02:00
Janosch Frank 26e0b96fa9 pc-bios: s390x: Save PSW rework
We don't need to save the ipl_continue variable in lowcore and have it
limited to 32 bits because of the lowcore layout. Let's move it to a
new 64 bit variable and get rid of the reset info struct.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201006094249.50640-3-frankja@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-06 19:57:35 +02:00
Janosch Frank 4906a4e41c pc-bios: s390x: Fix bootmap.c zipl component entry data handling
The two main types of zipl component entries are execute and
load/data. The last member of the component entry struct therefore
denotes either a PSW or an address. Let's make this a bit more clear
by introducing a union and cleaning up the code that uses that struct
member.

The execute type component entries written by zipl contain short PSWs,
not addresses. Let's mask them and only pass the address part to
jump_to_IPL_code(uint64_t address) because it expects an address as
visible by the name of the argument.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201006094249.50640-2-frankja@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-06 19:57:35 +02:00