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2024-09-10qapi/cryptodev: Rename QCryptodevBackendAlgType to *Algo, and drop prefixMarkus Armbruster
QAPI's 'prefix' feature can make the connection between enumeration type and its constants less than obvious. It's best used with restraint. QCryptodevBackendAlgType has a 'prefix' that overrides the generated enumeration constants' prefix to QCRYPTODEV_BACKEND_ALG. We could simply drop 'prefix', but I think the abbreviation "alg" is less than clear. Additionally rename the type to QCryptodevBackendAlgoType. The prefix becomes QCRYPTODEV_BACKEND_ALGO_TYPE. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240904111836.3273842-19-armbru@redhat.com>
2024-09-10qapi/crypto: Rename QCryptoIVGenAlgorithm to *Algo, and drop prefixMarkus Armbruster
QAPI's 'prefix' feature can make the connection between enumeration type and its constants less than obvious. It's best used with restraint. QCryptoIVGenAlgorithm has a 'prefix' that overrides the generated enumeration constants' prefix to QCRYPTO_IVGEN_ALG. We could simply drop 'prefix', but then the prefix becomes QCRYPTO_IV_GEN_ALGORITHM, which is rather long. We could additionally rename the type to QCryptoIVGenAlg, but I think the abbreviation "alg" is less than clear. Rename the type to QCryptoIVGenAlgo instead. The prefix becomes QCRYPTO_IV_GEN_ALGO. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240904111836.3273842-14-armbru@redhat.com>
2024-09-10qapi/crypto: Rename QCryptoCipherAlgorithm to *Algo, and drop prefixMarkus Armbruster
QAPI's 'prefix' feature can make the connection between enumeration type and its constants less than obvious. It's best used with restraint. QCryptoCipherAlgorithm has a 'prefix' that overrides the generated enumeration constants' prefix to QCRYPTO_CIPHER_ALG. We could simply drop 'prefix', but then the prefix becomes QCRYPTO_CIPHER_ALGORITHM, which is rather long. We could additionally rename the type to QCryptoCipherAlg, but I think the abbreviation "alg" is less than clear. Rename the type to QCryptoCipherAlgo instead. The prefix becomes QCRYPTO_CIPHER_ALGO. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240904111836.3273842-13-armbru@redhat.com>
2024-09-10qapi/crypto: Rename QCryptoHashAlgorithm to *Algo, and drop prefixMarkus Armbruster
QAPI's 'prefix' feature can make the connection between enumeration type and its constants less than obvious. It's best used with restraint. QCryptoHashAlgorithm has a 'prefix' that overrides the generated enumeration constants' prefix to QCRYPTO_HASH_ALG. We could simply drop 'prefix', but then the prefix becomes QCRYPTO_HASH_ALGORITHM, which is rather long. We could additionally rename the type to QCryptoHashAlg, but I think the abbreviation "alg" is less than clear. Rename the type to QCryptoHashAlgo instead. The prefix becomes to QCRYPTO_HASH_ALGO. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240904111836.3273842-12-armbru@redhat.com> [Conflicts with merge commit 7bbadc60b58b resolved]
2024-09-10qapi/machine: Rename CpuS390* to S390Cpu*, and drop 'prefix'Markus Armbruster
QAPI's 'prefix' feature can make the connection between enumeration type and its constants less than obvious. It's best used with restraint. CpuS390Entitlement has a 'prefix' to change the generated enumeration constants' prefix from CPU_S390_ENTITLEMENT to S390_CPU_ENTITLEMENT. Rename the type to S390CpuEntitlement, so that 'prefix' is not needed. Likewise change CpuS390Polarization to S390CpuPolarization, and CpuS390State to S390CpuState. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Acked-by: Thomas Huth <thuth@redhat.com> Message-ID: <20240904111836.3273842-10-armbru@redhat.com>
2024-09-10Merge tag 'migration-20240909-pull-request' of ↵Peter Maydell
https://gitlab.com/peterx/qemu into staging Migration pull request for 9.2 - Mattias's patch to support concurrent bounce buffers for PCI devices - David's memory leak fix in dirty_memory_extend() - Fabiano's CI fix to disable vmstate-static-checker test in compat tests - Denis's patch that adds one more trace point for cpu throttle changes - Yichen's multifd qatzip compressor support # -----BEGIN PGP SIGNATURE----- # # iIgEABYKADAWIQS5GE3CDMRX2s990ak7X8zN86vXBgUCZt9VlhIccGV0ZXJ4QHJl # ZGhhdC5jb20ACgkQO1/MzfOr1wZ+4QD+NPzprFD7RF2DPHT5bdo6NTWFSZxW4dyD # oFp2vhYDEAYA/A5TTfOh3QpYBOaP2PxztZIZSLgs1bokhp+sLM3/PVsK # =6JYP # -----END PGP SIGNATURE----- # gpg: Signature made Mon 09 Sep 2024 21:07:50 BST # gpg: using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706 # gpg: issuer "peterx@redhat.com" # gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [marginal] # gpg: aka "Peter Xu <peterx@redhat.com>" [marginal] # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: B918 4DC2 0CC4 57DA CF7D D1A9 3B5F CCCD F3AB D706 * tag 'migration-20240909-pull-request' of https://gitlab.com/peterx/qemu: system: improve migration debug tests/migration: Add integration test for 'qatzip' compression method migration: Introduce 'qatzip' compression method migration: Add migration parameters for QATzip meson: Introduce 'qatzip' feature to the build system docs/migration: add qatzip compression feature ci: migration: Don't run python tests in the compat job softmmu/physmem: fix memory leak in dirty_memory_extend() softmmu: Support concurrent bounce buffers Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-09softmmu/physmem: fix memory leak in dirty_memory_extend()David Hildenbrand
As reported by Peter, we might be leaking memory when removing the highest RAMBlock (in the weird ram_addr_t space), and adding a new one. We will fail to realize that we already allocated bitmaps for more dirty memory blocks, and effectively discard the pointers to them. Fix it by getting rid of last_ram_page() and by remembering the number of dirty memory blocks that have been allocated already. While at it, let's use "unsigned int" for the number of blocks, which should be sufficient until we reach ~32 exabytes. Looks like this leak was introduced as we switched from using a single bitmap_zero_extend() to allocating multiple bitmaps: bitmap_zero_extend() relies on g_renew() which should have taken care of this. Resolves: https://lkml.kernel.org/r/CAFEAcA-k7a+VObGAfCFNygQNfCKL=AfX6A4kScq=VSSK0peqPg@mail.gmail.com Reported-by: Peter Maydell <peter.maydell@linaro.org> Fixes: 5b82b703b69a ("memory: RCU ram_list.dirty_memory[] for safe RAM hotplug") Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Tested-by: Peter Maydell <peter.maydell@linaro.org> Cc: qemu-stable@nongnu.org Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Xu <peterx@redhat.com> Cc: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: David Hildenbrand <david@redhat.com> Link: https://lore.kernel.org/r/20240828090743.128647-1-david@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com>
2024-09-09softmmu: Support concurrent bounce buffersMattias Nissler
When DMA memory can't be directly accessed, as is the case when running the device model in a separate process without shareable DMA file descriptors, bounce buffering is used. It is not uncommon for device models to request mapping of several DMA regions at the same time. Examples include: * net devices, e.g. when transmitting a packet that is split across several TX descriptors (observed with igb) * USB host controllers, when handling a packet with multiple data TRBs (observed with xhci) Previously, qemu only provided a single bounce buffer per AddressSpace and would fail DMA map requests while the buffer was already in use. In turn, this would cause DMA failures that ultimately manifest as hardware errors from the guest perspective. This change allocates DMA bounce buffers dynamically instead of supporting only a single buffer. Thus, multiple DMA mappings work correctly also when RAM can't be mmap()-ed. The total bounce buffer allocation size is limited individually for each AddressSpace. The default limit is 4096 bytes, matching the previous maximum buffer size. A new x-max-bounce-buffer-size parameter is provided to configure the limit for PCI devices. Signed-off-by: Mattias Nissler <mnissler@rivosinc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/r/20240819135455.2957406-1-mnissler@rivosinc.com Signed-off-by: Peter Xu <peterx@redhat.com>
2024-09-09crypto: Introduce x509 utilsDorjoy Chowdhury
An utility function for getting fingerprint from X.509 certificate has been introduced. Implementation only provided using gnutls. Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com> [DB: fixed missing gnutls_x509_crt_deinit in success path] Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-09-09crypto: Define macros for hash algorithm digest lengthsDorjoy Chowdhury
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-09-06Merge tag 'pull-ufs-20240906' of https://gitlab.com/jeuk20.kim/qemu into stagingPeter Maydell
ufs queue # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCgAdFiEEUBfYMVl8eKPZB+73EuIgTA5dtgIFAmba268ACgkQEuIgTA5d # tgLndA//T7zvQboCWE2Aw+al4/cJmpfc/BP7pKrCvrwskhAo2H5JvbJ20WZ+/I6E # sLqXjsAQ4qPWUNi46aty/tCCmFWatBRKIyWOg1E8w1N1PCqM/aKFElENgi28iclj # 3TlIU+++a6VJXMtKKqGb/d6cxXM9QtRgkfpGEnVTCD4sRX25WuWcWu+hwCipgzsr # dul1Ez+mp62SfHN2QLPUd+Ft0SvyxybDA65JP9fCEJPJ+2dtLWPN9XGY+6PzW4dT # UEfUEV2V5k3w/QHTR8yG2i5s56wWVUhtQEhazbkj1VqgUSJ8PvIvBLhQpi4Gd51G # 62/xHJaHXPxgVrVE6Or/5QF9npo1moG7UrLgP+FYX5kto280wEyh3KxNhlan+lmI # IGo7V3Xv6UgGudJ/ZjR4dw24atFDcaqmdnWAOOp7mwxUIAq/5xLeDw2fzvuUw78a # cc732SF4XwTJfXwgiXkJXa/Si248fDtecvlD+lQ9wezSIJZq8Ojpe9uFREA4jPVY # jfgXEoopvam4w4ZKFRg93/0QErgwsYaJKKIKD8wZ99pi8/zrWlq5W1ujefQuvujt # FL4IbF/8g6i22fZgBr8AlkRn3epxx4oRGV+Rr8OXoFYjNR/E7rjKZYfbsJx/gDbO # zEMzSImQ48Tlxl9vkIx5kkUDxw3d7MDvrXEORcTMSW53CUDXJyA= # =U151 # -----END PGP SIGNATURE----- # gpg: Signature made Fri 06 Sep 2024 11:38:39 BST # gpg: using RSA key 5017D831597C78A3D907EEF712E2204C0E5DB602 # gpg: Good signature from "Jeuk Kim <jeuk20.kim@samsung.com>" [unknown] # gpg: aka "Jeuk Kim <jeuk20.kim@gmail.com>" [unknown] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 5017 D831 597C 78A3 D907 EEF7 12E2 204C 0E5D B602 * tag 'pull-ufs-20240906' of https://gitlab.com/jeuk20.kim/qemu: hw/ufs: ufs descriptor read test implemented hw/ufs: ufs attribute read/write test implemented hw/ufs: ufs flag read/write test implemented hw/ufs: minor bug fixes related to ufs-test hw/ufs: add basic info of query response upiu Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-06Merge tag 'pull-target-arm-20240905' of ↵Peter Maydell
https://git.linaro.org/people/pmaydell/qemu-arm into staging target-arm queue: * Implement FEAT_EBF16 emulation * accel/tcg: Remove dead code from rr_cpu_thread_fn() * hw: add compat machines for 9.2 * virt: default to two-stage SMMU from virt-9.2 * sbsa-ref: use two-stage SMMU * hw: Various minor memory leak fixes * target/arm: Correct names of VFP VFNMA and VFNMS insns * hw/arm/xilinx_zynq: Enable Security Extensions * hw/arm/boot: Report error msg if loading elf/dtb failed # -----BEGIN PGP SIGNATURE----- # # iQJNBAABCAA3FiEE4aXFk81BneKOgxXPPCUl7RQ2DN4FAmbZqzEZHHBldGVyLm1h # eWRlbGxAbGluYXJvLm9yZwAKCRA8JSXtFDYM3lJ7D/9s/ZTkiCj/z+caHotwNJVt # ECgEEVinitwZxSMINZd1f6bxTY8hYVjMewj6A6RvHtMJMr7SUOmL8wi0YlbhTm44 # jb8dZVf3pzPaZ399jxOeGnFipGyKmK0XM5rKc7CP6yJUS3B9RkUbLEHng8Q0ZBtl # cnZqI12jJBdtHU8D4JIvBgM2N2ay4bKY8EQEPCv4S7ZTKawWcKgSR5pMd2TBIqIT # 0gaDL3eOgCt2XWIrMzRjvaJK70obN/+n+vZQskJ/sIDsw+Kz8sZGlivdBXLRmQ+A # OUgtdyZoD42Q8KtwM0bjoaoxz6VMNPJp5khB45EPjVgWyeyJ0L6ZcWCX7nT4hZsi # 1C0NJaJU6HQbfsPiMIGxgHYJCbQue/mVBE02MPhmN8fZlsTRKWT9Miu67S0PI5Ib # ZWo88Ew1coucBm25K2NWdoR3dCP8EFnxqL556L8M4iDWYQ/djf8cpFAN9QJBFrNw # CaXS+vxIFUjZ6TSjf8gOYPAONmAg5DsCucgyO4MBKnvlY5h2J+GTq/FC+kWzL9jE # UfhqOWSP34ol2lg319zOtKg4Ga+GOivo2DmgWQhDwZ2rmRR+xgN8rkQjpJKIT5Zj # Ji+ucJrghBZ0sN622QYG0u0Ap9Jy4KCOxcFfS1b4gNhmMDWg27Tx9tIguXmjOE3M # aAs4wmm4Nz4kpsf1KkB11Q== # =gZuf # -----END PGP SIGNATURE----- # gpg: Signature made Thu 05 Sep 2024 13:59:29 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] # gpg: aka "Peter Maydell <peter@archaic.org.uk>" [ultimate] # Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE * tag 'pull-target-arm-20240905' of https://git.linaro.org/people/pmaydell/qemu-arm: (25 commits) platform-bus: fix refcount leak hw/arm/boot: Explain why load_elf_hdr() error is ignored hw/arm/boot: Report error msg if loading elf/dtb failed hw/arm/xilinx_zynq: Enable Security Extensions target/arm: Correct names of VFP VFNMA and VFNMS insns hw/arm/sbsa-ref: Don't leak string in sbsa_fdt_add_gic_node() hm/nvram/xlnx-versal-efuse-ctrl: Call register_finalize_block hw/misc/xlnx-versal-trng: Call register_finalize_block hw/nvram/xlnx-zynqmp-efuse: Call register_finalize_block hw/nvram/xlnx-bbram: Call register_finalize_block hw/misc/xlnx-versal-trng: Free s->prng in finalize, not unrealize hw/misc/xlnx-versal-cfu: destroy fifo in finalize hw/arm/sbsa-ref: Use two-stage SMMU hw/arm/virt: Default to two-stage SMMU from virt-9.2 hw/arm/smmuv3: Update comment documenting "stage" property hw: add compat machines for 9.2 accel/tcg: Remove dead code from rr_cpu_thread_fn() target/arm: Enable FEAT_EBF16 in the "max" CPU target/arm: Implement FPCR.EBF=1 semantics for bfdotadd() target/arm: Prepare bfdotadd() callers for FEAT_EBF support ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-06hw/ufs: minor bug fixes related to ufs-testYoochan Jeong
Minor bugs and errors related to ufs-test are resolved. Some permissions and code implementations that are not synchronized with the ufs spec are edited. Signed-off-by: Yoochan Jeong <yc01.jeong@samsung.com> Reviewed-by: Jeuk Kim <jeuk20.kim@samsung.com> Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>
2024-09-05hm/nvram/xlnx-versal-efuse-ctrl: Call register_finalize_blockPeter Maydell
The TYPE_XLNX_VERSAL_EFUSE_CTRL device creates a register block with register_init_block32() in its instance_init method; we must therefore destroy it in our instance_finalize method to avoid a leak in the QOM introspection "init-inspect-finalize" lifecycle: Direct leak of 304 byte(s) in 1 object(s) allocated from: #0 0x55f222b5b9d8 in __interceptor_calloc (/mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/asan/qemu-system-aarch64+0x294e9d8) (BuildId: 420 43d49e1139e3f3071b1f22fac1e3e7249c9a6) #1 0x7fbb10669c50 in g_malloc0 debian/build/deb/../../../glib/gmem.c:161:13 #2 0x55f222f90c5d in register_init_block hw/core/register.c:248:34 #3 0x55f222f916be in register_init_block32 hw/core/register.c:299:12 #4 0x55f223bbdd15 in efuse_ctrl_init hw/nvram/xlnx-versal-efuse-ctrl.c:718:9 #5 0x55f225b23391 in object_init_with_type qom/object.c:420:9 #6 0x55f225b0a66b in object_initialize_with_type qom/object.c:562:5 #7 0x55f225b0bf0d in object_new_with_type qom/object.c:782:5 #8 0x55f225b0bfe1 in object_new qom/object.c:797:12 #9 0x55f226309e0d in qmp_device_list_properties qom/qom-qmp-cmds.c:144:11 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20240822162127.705879-7-peter.maydell@linaro.org
2024-09-05hw/misc/xlnx-versal-trng: Call register_finalize_blockPeter Maydell
The TYPE_XLNX_VERSAL_TRNG device creates a register block with register_init_block32() in its instance_init method; we must therefore destroy it in our instance_finalize method to avoid a leak in the QOM introspection "init-inspect-finalize" lifecycle: Direct leak of 304 byte(s) in 1 object(s) allocated from: #0 0x55842ec799d8 in __interceptor_calloc (/mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/asan/qemu-system-aarch64+0x294e9d8) (BuildId: 47496e53f3e779f1c7e9b82cbea07407152b498b) #1 0x7fe793c75c50 in g_malloc0 debian/build/deb/../../../glib/gmem.c:161:13 #2 0x55842f0aec5d in register_init_block hw/core/register.c:248:34 #3 0x55842f0af6be in register_init_block32 hw/core/register.c:299:12 #4 0x55842f801588 in trng_init hw/misc/xlnx-versal-trng.c:614:9 #5 0x558431c411a1 in object_init_with_type qom/object.c:420:9 #6 0x558431c2847b in object_initialize_with_type qom/object.c:562:5 #7 0x558431c29d1d in object_new_with_type qom/object.c:782:5 #8 0x558431c29df1 in object_new qom/object.c:797:12 #9 0x558432427c1d in qmp_device_list_properties qom/qom-qmp-cmds.c:144:11 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20240822162127.705879-6-peter.maydell@linaro.org
2024-09-05hw/nvram/xlnx-zynqmp-efuse: Call register_finalize_blockPeter Maydell
The TYPE_XLNX_ZYNQMP_EFUSE device creates a register block with register_init_block32() in its instance_init method; we must therefore destroy it in our instance_finalize method to avoid a leak in the QOM introspection "init-inspect-finalize" lifecycle: Direct leak of 304 byte(s) in 1 object(s) allocated from: #0 0x55f3ff5839d8 in __interceptor_calloc (/mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/asan/qemu-system-aarch64+0x294d9d8) (BuildId: 23cf931c66865a71b6cc4da95156d03bc106fa72) #1 0x7f3f31c6bc50 in g_malloc0 debian/build/deb/../../../glib/gmem.c:161:13 #2 0x55f3ff9b8c5d in register_init_block hw/core/register.c:248:34 #3 0x55f3ff9b96be in register_init_block32 hw/core/register.c:299:12 #4 0x55f4005e5b25 in efuse_ctrl_init hw/nvram/xlnx-versal-efuse-ctrl.c:718:9 #5 0x55f40254afb1 in object_init_with_type qom/object.c:420:9 #6 0x55f40253228b in object_initialize_with_type qom/object.c:562:5 #7 0x55f402533b2d in object_new_with_type qom/object.c:782:5 #8 0x55f402533c01 in object_new qom/object.c:797:12 #9 0x55f402d31a2d in qmp_device_list_properties qom/qom-qmp-cmds.c:144:11 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20240822162127.705879-5-peter.maydell@linaro.org
2024-09-05hw/nvram/xlnx-bbram: Call register_finalize_blockPeter Maydell
The TYPE_XLNX_BBRAM device creates a register block with register_init_block32() in its instance_init method; we must therefore destroy it in our instance_finalize method to avoid a leak in the QOM introspection "init-inspect-finalize" lifecycle: Direct leak of 304 byte(s) in 1 object(s) allocated from: #0 0x5641518ca9d8 in __interceptor_calloc (/mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/asan/qemu-system-aarch64+0x294d9d8) (BuildId: 4a6 18cb63d57d5a19ed45cfc262b08da47eaafe5) #1 0x7ff1aab31c50 in g_malloc0 debian/build/deb/../../../glib/gmem.c:161:13 #2 0x564151cffc5d in register_init_block hw/core/register.c:248:34 #3 0x564151d006be in register_init_block32 hw/core/register.c:299:12 #4 0x56415293df75 in bbram_ctrl_init hw/nvram/xlnx-bbram.c:462:9 #5 0x564154891dc1 in object_init_with_type qom/object.c:420:9 #6 0x56415487909b in object_initialize_with_type qom/object.c:562:5 #7 0x56415487a93d in object_new_with_type qom/object.c:782:5 #8 0x56415487aa11 in object_new qom/object.c:797:12 #9 0x56415507883d in qmp_device_list_properties qom/qom-qmp-cmds.c:144:11 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20240822162127.705879-4-peter.maydell@linaro.org
2024-09-05hw/arm/virt: Default to two-stage SMMU from virt-9.2Peter Maydell
Now that our SMMU model supports enabling both stages of translation at once, we can enable this in the virt board. This is no change in behaviour for guests, because if they simply ignore stage 2 and never configure it then it has no effect. For the usual backwards compatibility reasons we enable this only for machine types starting with 9.2. (Note that the SMMU is disabled by default on the virt board and is only created if the user passes the 'iommu=smmuv3' machine option.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-id: 20240816161350.3706332-4-peter.maydell@linaro.org
2024-09-05hw: add compat machines for 9.2Cornelia Huck
Add 9.2 machine types for arm/i440fx/m68k/q35/s390x/spapr. Signed-off-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240816161350.3706332-2-peter.maydell@linaro.org Message-id: 20240816103723.2325982-1-cohuck@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-04hw/xen: pvh-common: Add support for creating PCIe/GPEXEdgar E. Iglesias
Add support for optionally creating a PCIe/GPEX controller. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2024-09-04hw/arm: xenpvh: Break out a common PVH machineEdgar E. Iglesias
Break out a common Xen PVH machine in preparation for adding a x86 Xen PVH machine. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2024-08-16docs: Fix some typos (found by typos) and grammar issuesStefan Weil
Fix the misspellings of "overriden" also in code comments. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20240813125638.395461-1-sw@weilnetz.de> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240813202329.1237572-20-alex.bennee@linaro.org>
2024-08-16Revert "replay: stop us hanging in rr_wait_io_event"Nicholas Piggin
This reverts commit 1f881ea4a444ef36a8b6907b0b82be4b3af253a2. That commit causes reverse_debugging.py test failures, and does not seem to solve the root cause of the problem x86-64 still hangs in record/replay tests. The problem with short-cutting the iowait that was taken during record phase is that related events will not get consumed at the same points (e.g., reading the clock). A hang with zero icount always seems to be a symptom of an earlier problem that has caused the recording to become out of synch with the execution and consumption of events by replay. Acked-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Message-Id: <20240813050638.446172-6-npiggin@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240813202329.1237572-14-alex.bennee@linaro.org>
2024-08-16replay: allow runstate shutdown->running when replaying traceNicholas Piggin
When replaying a trace, it is possible to go from shutdown to running with a reverse-debugging step. This can be useful if the problem being debugged triggers a reset or shutdown. This can be tested by making a recording of a machine that shuts down, then using -action shutdown=pause when replaying it. Continuing to the end of the trace then reverse-stepping in gdb crashes due to invalid runstate transition. Just permitting the transition seems to be all that's necessary for reverse-debugging to work well in such a state. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Message-Id: <20240813050638.446172-5-npiggin@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240813202329.1237572-13-alex.bennee@linaro.org>
2024-08-12arm/virt: place power button pin number on a defineMauro Carvalho Chehab
Having magic numbers inside the code is not a good idea, as it is error-prone. So, instead, create a macro with the number definition. Link: https://lore.kernel.org/qemu-devel/CAFEAcA-PYnZ-32MRX+PgvzhnoAV80zBKMYg61j2f=oHaGfwSsg@mail.gmail.com/ Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-id: ef0e7f5fca6cd94eda415ecee670c3028c671b74.1723121692.git.mchehab+huawei@kernel.org Suggested-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-08-09include: Fix typo in name of MAKE_IDENTFIER macroPeter Maydell
In commit bb71846325e23 we added some macro magic to avoid variable-shadowing when using some of our more complicated macros. One of the internal components of this is a macro named MAKE_IDENTFIER. Fix the typo in its name: it should be MAKE_IDENTIFIER. Commit created with sed -i -e 's/MAKE_IDENTFIER/MAKE_IDENTIFIER/g' include/qemu/*.h include/qapi/qmp/qobject.h Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20240801102516.3843780-1-peter.maydell@linaro.org
2024-08-08nbd/server: CVE-2024-7409: Cap default max-connections to 100Eric Blake
Allowing an unlimited number of clients to any web service is a recipe for a rudimentary denial of service attack: the client merely needs to open lots of sockets without closing them, until qemu no longer has any more fds available to allocate. For qemu-nbd, we default to allowing only 1 connection unless more are explicitly asked for (-e or --shared); this was historically picked as a nice default (without an explicit -t, a non-persistent qemu-nbd goes away after a client disconnects, without needing any additional follow-up commands), and we are not going to change that interface now (besides, someday we want to point people towards qemu-storage-daemon instead of qemu-nbd). But for qemu proper, and the newer qemu-storage-daemon, the QMP nbd-server-start command has historically had a default of unlimited number of connections, in part because unlike qemu-nbd it is inherently persistent until nbd-server-stop. Allowing multiple client sockets is particularly useful for clients that can take advantage of MULTI_CONN (creating parallel sockets to increase throughput), although known clients that do so (such as libnbd's nbdcopy) typically use only 8 or 16 connections (the benefits of scaling diminish once more sockets are competing for kernel attention). Picking a number large enough for typical use cases, but not unlimited, makes it slightly harder for a malicious client to perform a denial of service merely by opening lots of connections withot progressing through the handshake. This change does not eliminate CVE-2024-7409 on its own, but reduces the chance for fd exhaustion or unlimited memory usage as an attack surface. On the other hand, by itself, it makes it more obvious that with a finite limit, we have the problem of an unauthenticated client holding 100 fds opened as a way to block out a legitimate client from being able to connect; thus, later patches will further add timeouts to reject clients that are not making progress. This is an INTENTIONAL change in behavior, and will break any client of nbd-server-start that was not passing an explicit max-connections parameter, yet expects more than 100 simultaneous connections. We are not aware of any such client (as stated above, most clients aware of MULTI_CONN get by just fine on 8 or 16 connections, and probably cope with later connections failing by relying on the earlier connections; libvirt has not yet been passing max-connections, but generally creates NBD servers with the intent for a single client for the sake of live storage migration; meanwhile, the KubeSAN project anticipates a large cluster sharing multiple clients [up to 8 per node, and up to 100 nodes in a cluster], but it currently uses qemu-nbd with an explicit --shared=0 rather than qemu-storage-daemon with nbd-server-start). We considered using a deprecation period (declare that omitting max-parameters is deprecated, and make it mandatory in 3 releases - then we don't need to pick an arbitrary default); that has zero risk of breaking any apps that accidentally depended on more than 100 connections, and where such breakage might not be noticed under unit testing but only under the larger loads of production usage. But it does not close the denial-of-service hole until far into the future, and requires all apps to change to add the parameter even if 100 was good enough. It also has a drawback that any app (like libvirt) that is accidentally relying on an unlimited default should seriously consider their own CVE now, at which point they are going to change to pass explicit max-connections sooner than waiting for 3 qemu releases. Finally, if our changed default breaks an app, that app can always pass in an explicit max-parameters with a larger value. It is also intentional that the HMP interface to nbd-server-start is not changed to expose max-connections (any client needing to fine-tune things should be using QMP). Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com> Message-ID: <20240807174943.771624-12-eblake@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> [ericb: Expand commit message to summarize Dan's argument for why we break corner-case back-compat behavior without a deprecation period] Signed-off-by: Eric Blake <eblake@redhat.com>
2024-08-08nbd/server: Plumb in new args to nbd_client_add()Eric Blake
Upcoming patches to fix a CVE need to track an opaque pointer passed in by the owner of a client object, as well as request for a time limit on how fast negotiation must complete. Prepare for that by changing the signature of nbd_client_new() and adding an accessor to get at the opaque pointer, although for now the two servers (qemu-nbd.c and blockdev-nbd.c) do not change behavior even though they pass in a new default timeout value. Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Signed-off-by: Eric Blake <eblake@redhat.com> Message-ID: <20240807174943.771624-11-eblake@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> [eblake: s/LIMIT/MAX_SECS/ as suggested by Dan] Signed-off-by: Eric Blake <eblake@redhat.com>
2024-08-07Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into stagingRichard Henderson
Block layer patches - scsi-block: Fix error handling with r/werror=stop - Depend on newer clang for TSA, make WITH_GRAPH_RDLOCK_GUARD() fully checked, fix block-copy to add missing lock - vvfat: Fix write bugs for large files and add iotests - Clean up blockdev-snapshot-internal-sync doc - Fix iotests 024 for qed # -----BEGIN PGP SIGNATURE----- # # iQJFBAABCAAvFiEE3D3rFZqa+V09dFb+fwmycsiPL9YFAmayag4RHGt3b2xmQHJl # ZGhhdC5jb20ACgkQfwmycsiPL9Y0yhAArDpKYNsOmJerL/abIetchJ84suuR2MHZ # iziAsTXk1iiSNYrAfXyiGhMsovvApluW1bojB80XLjaWFeN76zCRq0bnYVhv/xeX # bQddC4JyWkcYGmdASiFpvQ7+p37jBh+OebmxsF557s4uM6b0/QN1xnOyyjBpyJbB # aBTNgUYaTXmD6RD8h9SscnroNqhckuv6+zm0SX2Z4wRTF2uEmVWdL2yz2I3P8G7W # dhVfgOCYQmW0cSfTueBQJClaUoHyJeibd4TzHR12hFAKIYobXMGfcE3AhfpBvO3t # 0SEQ5MUx3zasGVENSJA6UnzVnpHl8HRtdDIFhSWb6yZJJ6RPPGynj7UVvFOK1SXM # iXzj1kcYzFO/AFO3JxkSr6IHZdzZr4e5wtuFbw8Je6Ai0P5prc53jBDovtbAT0Wt # +dAP7cnntYLDcAIsJqGUdr2FJfSOh9gApH/I3kF3scDwLRpb6OlWJ60T5b98VcR4 # +J67AXuGN7OXtYEU6GupZpWTQ/nZQ63egrCfJlqL67QduuF1YvcgOo2+TdAwDYkf # 8nU7AEUgzWox8EcTkof/BXYYabOjn0D6/1+aLc7J7vGGlnKVyQMK9Kn5MRBzkyb3 # iWOtuv8aoNfnxtuMnpwe/Uf2hhOGi8IldnoP2+Yb9urWnFQ3Jbbmnv8Ga7mDQmRs # ue4gDS51MCc= # =ouBM # -----END PGP SIGNATURE----- # gpg: Signature made Wed 07 Aug 2024 04:23:10 AM AEST # gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6 # gpg: issuer "kwolf@redhat.com" # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full] * tag 'for-upstream' of https://repo.or.cz/qemu/kevin: iotests/024: exclude 'backing file format' field from the output iotests: Add `vvfat` tests vvfat: Fix reading files with non-continuous clusters vvfat: Fix wrong checks for cluster mappings invariant vvfat: Fix usage of `info.file.offset` vvfat: Fix bug in writing to middle of file scsi-disk: Always report RESERVATION_CONFLICT to guest scsi-disk: Add warning comments that host_status errors take a shortcut scsi-block: Don't skip callback for sgio error status/driver_status scsi-disk: Use positive return value for status in dma_readv/writev block/graph-lock: Make WITH_GRAPH_RDLOCK_GUARD() fully checked block-copy: Fix missing graph lock qapi-block-core: Clean up blockdev-snapshot-internal-sync doc Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-08-06block/graph-lock: Make WITH_GRAPH_RDLOCK_GUARD() fully checkedKevin Wolf
Upstream clang 18 (and backports to clang 17 in Fedora and RHEL) implemented support for __attribute__((cleanup())) in its Thread Safety Analysis, so we can now actually have a proper implementation of WITH_GRAPH_RDLOCK_GUARD() that understands when we acquire and when we release the lock. -Wthread-safety is now only enabled if the compiler is new enough to understand this pattern. In theory, we could have used some #ifdefs to keep the existing basic checks on old compilers, but as long as someone runs a newer compiler (and our CI does), we will catch locking problems, so it's probably not worth keeping multiple implementations for this. The implementation can't use g_autoptr any more because the glib macros define wrapper functions that don't have the right TSA attributes, so the compiler would complain about them. Just use the cleanup attribute directly instead. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-ID: <20240627181245.281403-3-kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-08-06hw/loongarch/virt: Replace Loongson IPI with LoongArch IPIBibo Mao
Loongarch IPI inherits from class LoongsonIPICommonClass, and it only contains Loongarch 3A5000 virt machine specific interfaces, rather than mix different machine implementations together. Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Rebased] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-14-philmd@linaro.org>
2024-08-06hw/intc/loongarch_ipi: Add loongarch IPI supportBibo Mao
Loongarch IPI is added here, it inherits from class TYPE_LOONGSON_IPI_COMMON, and two interfaces get_iocsr_as() and cpu_by_arch_id() are added for Loongarch 3A5000 machine. It can be used when ipi is emulated in userspace with KVM mode. Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Rebased and simplified] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-13-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Move common code to loongson_ipi_common.cBibo Mao
Move the common code from loongson_ipi.c to loongson_ipi_common.c, call parent_realize() instead of loongson_ipi_common_realize() in loongson_ipi_realize(). Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-12-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Expose loongson_ipi_core_read/write helpersBibo Mao
In order to access loongson_ipi_core_read/write helpers from loongson_ipi_common.c in the next commit, make their prototype declaration public. Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-11-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Add LoongsonIPICommonClass::cpu_by_arch_id handlerBibo Mao
Allow Loongson IPI implementations to have their own cpu_by_arch_id() handler. Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-10-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Add LoongsonIPICommonClass::get_iocsr_as handlerBibo Mao
Allow Loongson IPI implementations to have their own get_iocsr_as() handler. Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-9-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Move IPICore structure to loongson_ipi_common.hBibo Mao
Move the IPICore structure and corresponding common fields of LoongsonIPICommonState to "hw/intc/loongson_ipi_common.h". Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-7-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Move IPICore::mmio_mem to LoongsonIPIStateBibo Mao
It is easier to manage one array of MMIO MR rather than one per vCPU. Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-6-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Move common definitions to loongson_ipi_common.hBibo Mao
Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-5-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Add TYPE_LOONGSON_IPI_COMMON stubBibo Mao
Introduce LOONGSON_IPI_COMMON stubs, QDev parent of LOONGSON_IPI. Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-4-philmd@linaro.org>
2024-08-06hw/intc/loongson_ipi: Rename LoongsonIPI -> LoongsonIPIStateBibo Mao
We'll have to add LoongsonIPIClass in few commits, so rename LoongsonIPI as LoongsonIPIState for clarity. Signed-off-by: Bibo Mao <maobibo@loongson.cn> [PMD: Extracted from bigger commit, added commit description] Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Bibo Mao <maobibo@loongson.cn> Acked-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20240805180622.21001-2-philmd@linaro.org>
2024-08-05qemu/osdep: Add excluded fd parameter to qemu_close_all_open_fd()Clément Léger
In order for this function to be usable by tap.c code, add a list of file descriptors that should not be closed. Signed-off-by: Clément Léger <cleger@rivosinc.com> Message-ID: <20240802145423.3232974-5-cleger@rivosinc.com> [rth: Use max_fd in qemu_close_all_open_fd_close_range] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-08-05qemu/osdep: Move close_all_open_fds() to oslib-posixClément Léger
Move close_all_open_fds() in oslib-posix, rename it qemu_close_all_open_fds() and export it. Signed-off-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240802145423.3232974-2-cleger@rivosinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-08-02virtio-net: Fix network stall at the host side waiting for kickthomas
Patch 06b12970174 ("virtio-net: fix network stall under load") added double-check to test whether the available buffer size can satisfy the request or not, in case the guest has added some buffers to the avail ring simultaneously after the first check. It will be lucky if the available buffer size becomes okay after the double-check, then the host can send the packet to the guest. If the buffer size still can't satisfy the request, even if the guest has added some buffers, viritio-net would stall at the host side forever. The patch enables notification and checks whether the guest has added some buffers since last check of available buffers when the available buffers are insufficient. If no buffer is added, return false, else recheck the available buffers in the loop. If the available buffers are sufficient, disable notification and return true. Changes: 1. Change the return type of virtqueue_get_avail_bytes() from void to int, it returns an opaque that represents the shadow_avail_idx of the virtqueue on success, else -1 on error. 2. Add a new API: virtio_queue_enable_notification_and_check(), it takes an opaque as input arg which is returned from virtqueue_get_avail_bytes(). It enables notification firstly, then checks whether the guest has added some buffers since last check of available buffers or not by virtio_queue_poll(), return ture if yes. The patch also reverts patch "06b12970174". The case below can reproduce the stall. Guest 0 +--------+ | iperf | ---------------> | server | Host | +--------+ +--------+ | ... | iperf |---- | client |---- Guest n +--------+ | +--------+ | | iperf | ---------------> | server | +--------+ Boot many guests from qemu with virtio network: qemu ... -netdev tap,id=net_x \ -device virtio-net-pci-non-transitional,\ iommu_platform=on,mac=xx:xx:xx:xx:xx:xx,netdev=net_x Each guest acts as iperf server with commands below: iperf3 -s -D -i 10 -p 8001 iperf3 -s -D -i 10 -p 8002 The host as iperf client: iperf3 -c guest_IP -p 8001 -i 30 -w 256k -P 20 -t 40000 iperf3 -c guest_IP -p 8002 -i 30 -w 256k -P 20 -t 40000 After some time, the host loses connection to the guest, the guest can send packet to the host, but can't receive packet from the host. It's more likely to happen if SWIOTLB is enabled in the guest, allocating and freeing bounce buffer takes some CPU ticks, copying from/to bounce buffer takes more CPU ticks, compared with that there is no bounce buffer in the guest. Once the rate of producing packets from the host approximates the rate of receiveing packets in the guest, the guest would loop in NAPI. receive packets --- | | v | free buf virtnet_poll | | v | add buf to avail ring --- | | need kick the host? | NAPI continues v receive packets --- | | v | free buf virtnet_poll | | v | add buf to avail ring --- | v ... ... On the other hand, the host fetches free buf from avail ring, if the buf in the avail ring is not enough, the host notifies the guest the event by writing the avail idx read from avail ring to the event idx of used ring, then the host goes to sleep, waiting for the kick signal from the guest. Once the guest finds the host is waiting for kick singal (in virtqueue_kick_prepare_split()), it kicks the host. The host may stall forever at the sequences below: Host Guest ------------ ----------- fetch buf, send packet receive packet --- ... ... | fetch buf, send packet add buf | ... add buf virtnet_poll buf not enough avail idx-> add buf | read avail idx add buf | add buf --- receive packet --- write event idx ... | wait for kick add buf virtnet_poll ... | --- no more packet, exit NAPI In the first loop of NAPI above, indicated in the range of virtnet_poll above, the host is sending packets while the guest is receiving packets and adding buffers. step 1: The buf is not enough, for example, a big packet needs 5 buf, but the available buf count is 3. The host read current avail idx. step 2: The guest adds some buf, then checks whether the host is waiting for kick signal, not at this time. The used ring is not empty, the guest continues the second loop of NAPI. step 3: The host writes the avail idx read from avail ring to used ring as event idx via virtio_queue_set_notification(q->rx_vq, 1). step 4: At the end of the second loop of NAPI, recheck whether kick is needed, as the event idx in the used ring written by the host is beyound the range of kick condition, the guest will not send kick signal to the host. Fixes: 06b12970174 ("virtio-net: fix network stall under load") Cc: qemu-stable@nongnu.org Signed-off-by: Wencheng Yang <east.moutain.yang@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-08-01Revert "hw/pci: Rename has_power to enabled"Michael S. Tsirkin
This reverts commit 6a31b219a5338564f3978251c79f96f689e037da. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01Revert "pcie_sriov: Ensure VF function number does not overflow"Michael S. Tsirkin
This reverts commit 77718701157f6ca77ea7a57b536fa0a22f676082. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01Revert "pcie_sriov: Reuse SR-IOV VF device instances"Michael S. Tsirkin
This reverts commit 139610ae67f6ecf92127bb7bf53ac6265b459ec8. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01Revert "pcie_sriov: Remove num_vfs from PCIESriovPF"Michael S. Tsirkin
This reverts commit cbd9e5120bac3e292eee77b7a2e3692f235a1a26. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01Revert "pcie_sriov: Register VFs after migration"Michael S. Tsirkin
This reverts commit 107a64b9a360cf5ca046852bc03334f7a9f22aef. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-08-01Revert "pcie_sriov: Allow user to create SR-IOV device"Michael S. Tsirkin
This reverts commit 122173a5830f7757f8a94a3b1559582f312e140b. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>