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2025-07-30intc/riscv_aplic: Fix target register read when source is inactiveYang Jialong1-1/+5
The RISC-V Advanced interrupt Architecture: 4.5.16. Interrupt targets: If interrupt source i is inactive in this domain, register target[i] is read-only zero. Signed-off-by: Yang Jialong <z_bajeer@yeah.net> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20250728055114.252024-1-z_bajeer@yeah.net> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-07-30hw/riscv/virt-acpi-build.c: Update FADT and MADT versionsSunil V L1-15/+10
RISC-V support is added only in ACPI 6.6. According to the ACPI 6.6 specification, the minor version of the Fixed ACPI Description Table (FADT) should be 6, and the Multiple APIC Description Table (MADT) should use revision 7. So, update the RISC-V FADT and MADT to reflect correct versions. Update the code comments to reflect ACPI 6.6 version details. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Nutty Liu <liujingqi@lanxincomputing.com> Message-ID: <20250724110350.452828-3-sunilvl@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-07-29Merge tag 'hw-misc-20250729' of https://github.com/philmd/qemu into stagingStefan Hajnoczi4-2/+3
Misc HW patches - Fix MIPS MVPControl.EVP update - Fix qxl_unpack_chunks() chunk size calculation - Fix Cadence GEM register mask initialization - Fix AddressSpaceDispatch use after free - Fix building npcm7xx/npcm8xx bootroms - Include missing headers # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmiItwoACgkQ4+MsLN6t # wN5OGw//SFNgCvin6ic3H+QoUNwrRAH7eFuVfAKSKGopSqWf19imHy8rZl/8DYeo # WsCRUPkVcAGzgRHZFc+8VYGdSR5GW7AulSzHh7fGQ8EFNunu3cnGsDflVV6UjgRP # wnCfFuyrnyGfXVWkkjWYqCLI78AR0hB0Gp1E5nR4ZwGM4OhatDjKpYxWlRZbnjSA # pBArLw8eKUrq90RekVpsa15oF9eMU89HzDBfxYvk0tb4//BWBiWfgQ+cz7j9f1wC # wtTOEQ2BTkvGhqhe9VacV4YpQDXE9comlTked48GzHGqsAgp55NcB6FAR438qiG1 # 3z7LpL4LQn39+oC0S9cR2OahIGFEveOvGJoj014Iny4QR/ghNzt3F2Z9tgPISIKj # MhJ0Bu7K7X+RWikY9xiAu24ORrRd5O6EItgLsl+24vkySOKODZ85WdKtIx0DQ7Yj # rvRTkFDs/3K3kzMfZ20Jpeu7Bc74qUgsii27rivM/9rN0R9w+Br8MWLe0QSFalUe # 08NoRZMVuSPCWlvJGGb0SRYpVAZsZaE9Ucd8wQzEcjHdVu0/+7KQfACXrJ09Y8sq # lTgytCL8gO2jSEAh4cN/Ds1uBc8X5KKL32hNzRgddZVujqAuriBjAYEEk1pc7qe4 # yBxVkhASOpY53b1O2UqanajT2vY4T3JX5w+Jqn1HubZ/ZUwcK64= # =H2Ie # -----END PGP SIGNATURE----- # gpg: Signature made Tue 29 Jul 2025 07:56:58 EDT # gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE # gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full] # Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE * tag 'hw-misc-20250729' of https://github.com/philmd/qemu: hw/display/sm501: fix missing error-report.h roms/Makefile: fix npcmNxx_bootrom build rules system/physmem: fix use-after-free with dispatch hw/xen/passthrough: add missing error-report include hw/net/cadence_gem: fix register mask initialization migration: rename target.c to vfio.c hw/vfio/vfio-migration: Remove unnecessary 'qemu/typedefs.h' include hw/display/qxl-render: fix qxl_unpack_chunks() chunk size calculation target/mips: Only update MVPControl.EVP bit if executed by master VPE Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-07-29hw/display/sm501: fix missing error-report.hClément Chigot1-0/+1
"qemu/error-report.h" was previously implicitly included. This is no longer the case following 012842c075520dbe1bd96a2fdcf4e218874ba443. However, the issue predates this change as `error-report.h` should have been included when the `warn_report` call was introduced. Fixes: fa140b9562 ("hw/sm501: allow compiling without PIXMAN") Signed-off-by: Clément Chigot <chigot@adacore.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20250728090518.963573-1-chigot@adacore.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-07-29hw/xen/passthrough: add missing error-report includeAdam Williamson1-0/+1
In commit cfcacbab38e ("xen/passthrough: use gsi to map pirq when dom0 is PVH") an `error_report` was added to this file, but the corresponding include of `qemu/error-report.h` was missed. This only becomes apparent when building against Xen 4.20+ with trace backend log disabled. Fixes: cfcacbab38e4 (xen/passthrough: use gsi to map pirq when dom0 is PVH) Signed-off-by: Adam Williamson <awilliam@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20250717220207.171040-1-awilliam@redhat.com> [PMD: Improved commit description, added Fixes: tag] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-07-29hw/net/cadence_gem: fix register mask initializationLuc Michel1-1/+1
The gem_init_register_masks function was called at init time but it relies on the num-priority-queues property. Call it at realize time instead. Cc: qemu-stable@nongnu.org Fixes: 4c70e32f05f ("net: cadence_gem: Define access permission for interrupt registers") Signed-off-by: Luc Michel <luc.michel@amd.com> Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com> Reviewed-by: Sai Pavan Boddu <sai.pavan.boddu@amd.com> Message-ID: <20250716095432.81923-2-luc.michel@amd.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-07-29hw/vfio/vfio-migration: Remove unnecessary 'qemu/typedefs.h' includePhilippe Mathieu-Daudé1-1/+0
"qemu/typedefs.h" is already included by "qemu/osdep.h". Reviewed-by: Cédric Le Goater <clg@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20250708085859.7885-3-philmd@linaro.org>
2025-07-29hw/display/qxl-render: fix qxl_unpack_chunks() chunk size calculationMichael Tokarev1-1/+10
In case of multiple chunks, code in qxl_unpack_chunks() takes size of the wrong (next in the chain) chunk, instead of using current chunk size. This leads to wrong number of bytes being copied, and to crashes if next chunk size is larger than the current one. Based on the code by Gao Yong. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1628 Tested-by: Thaddeus Hogan <thaddeus@thogan.com> Tested-by: Vadim Zeitlin <vadim@wxwidgets.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-ID: <20250221134856.478806-1-mjt@tls.msk.ru> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-07-28vfio/igd: Fix VGA regions are not exposed in legacy modeTomita Moeko3-6/+18
In commit a59d06305fff ("vfio/pci: Introduce x-pci-class-code option"), pci_register_vga() has been moved ouside of vfio_populate_vga(). As a result, IGD VGA ranges are no longer properly exposed to guest. To fix this, call pci_register_vga() after vfio_populate_vga() legacy mode. A wrapper function vfio_pci_config_register_vga() is introduced to handle it. Fixes: a59d06305fff ("vfio/pci: Introduce x-pci-class-code option") Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250723160906.44941-3-tomitamoeko@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-28vfio/igd: Require host VGA decode for legacy modeTomita Moeko1-5/+6
Commit a59d06305fff ("vfio/pci: Introduce x-pci-class-code option") allows user to expose non-VGA IGD device as VGA controller to the guest. However, legacy mode requires host VGA range access. Check that GGC.IVD == 0 before enabling legacy mode to ensure IGD is a real VGA device claiming host VGA ranges. Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250723160906.44941-2-tomitamoeko@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-28vfio: fix sub-page bar after cprSteve Sistare3-0/+17
Regions for sub-page BARs are normally mapped here, in response to the guest writing to PCI config space: vfio_pci_write_config() pci_default_write_config() pci_update_mappings() memory_region_add_subregion() vfio_sub_page_bar_update_mapping() ... vfio_dma_map() However, after CPR, the guest does not reconfigure the device and the code path above is not taken. To fix, in vfio_cpr_pci_post_load, call vfio_sub_page_bar_update_mapping for each sub-page BAR with a valid address. Fixes: 7e9f21411302 ("vfio/container: restore DMA vaddr") Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Link: https://lore.kernel.org/qemu-devel/1752520890-223356-1-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-28i386: Build SEV only for 64-bit targetCédric Le Goater1-1/+1
Recent changes broke build on 32-bit host. Since there is no 32-bit support, restrict SEV to 64-bit. Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250716071554.377356-1-clg@redhat.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-28hw/i386: Fix 'use-legacy-x86-rom' property compatibilityCédric Le Goater6-6/+6
Commit 350785d41d8b ("ramfb: Add property to control if load the romfile") introduced the `use-legacy-x86-rom` property for the `vfio-pci-nohotplug` device, allowing control over VGA BIOS ROM loading. However, the property compatibility setting was incorrectly applied to the `vfio-pci` device instead, which causes all `vfio-pci` devices to fail to load. This change fixes the issue by ensuring the property is set on the correct device. Fixes: d5fcf0d960d8 ("hw/i386: Add the ramfb romfile compatibility") Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Shaoqin Huang <shahuang@redhat.com> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250723062714.1245826-1-clg@redhat.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-28Merge tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu into stagingStefan Hajnoczi1-1/+10
trivial patches for 2025-07-25 # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCgAdFiEEZKoqtTHVaQM2a/75gqpKJDselHgFAmiDqDsACgkQgqpKJDse # lHitSg//Uy6gv6Xk+Q4WW220ik9Mr0U00bJmOFiD14I3S1z7D/L8ZvjZlA85WpZs # XhSgXzHW2qFKDAz4suEh/u4p6fboYYf0r/+QiK0Qxumup23ClcClWRBQ14GVp3T4 # JXzojzJtzYTCvr0LixNHGai8ZNr8D5XsTeKH4noH9sgDC0uRS2fD20GD5AnyJiNS # sdAlfFLJM8yLSE+pgwUr06m3s/m+wn+xH5wMVr4vUzprgXxOubz4CkOyoPMIsOxZ # 679CPfsfYueEjZ6EJJHCgLwlQIXwTEfPHWkw3GMHdgHD3qbezXH4HUanRX8zK/k1 # KeDj/goeTYQuevsLss30HgxGaoEJXAS8pPmyP7biDrxfpN+aJRIJXVZbXa0bgdFW # RF6CT+kfZCyC2/kAdUlbVNvUfgsfANWD7toIRbRwcyk7awg1jUJElEbEx17DMqr3 # nCLzfFiS09Y/9c7rtLfTwyPW1k6XAr9fykVziup5KeOEQaetpPTtvV6DFqcvQ57p # OdwMZytY+f8KKctV+X0XckmDVRQu9I9/FaWsQT82sXUSI21apAwl22Vh3mRMGkHv # eHSa+I9KQwFpXEh/LE9PYWnQBR95DIuI1u2TP1tyXdu53/seUFmTUQ6JHeQynNJ3 # E25yxYzxRXwtfTINo+YWzORVe5Gie/aWek8AnC3GSQ2yaJXBCH4= # =0G1o # -----END PGP SIGNATURE----- # gpg: Signature made Fri 25 Jul 2025 11:52:27 EDT # gpg: using RSA key 64AA2AB531D56903366BFEF982AA4A243B1E9478 # gpg: Good signature from "Michael Tokarev <mjt@debian.org>" [unknown] # gpg: aka "Michael Tokarev <mjt@corpit.ru>" [unknown] # gpg: aka "Michael Tokarev <mjt@tls.msk.ru>" [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: 9D8B E14E 3F2A 9DD7 9199 28F1 61AD 3D98 ECDF 2C8E # Subkey fingerprint: 64AA 2AB5 31D5 6903 366B FEF9 82AA 4A24 3B1E 9478 * tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu: hw/display/qxl-render.c: fix qxl_unpack_chunks() chunk size calculation Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-07-25hw/arm/smmu-common: Avoid using inlined functions with external linkageJianChunfu1-1/+1
Similarly to commit 9de9fa5c ("hw/arm/smmu-common: Avoid using inlined functions with external linkage"): None of our code base require / use inlined functions with external linkage. Some places use internal inlining in the hot path. These two functions are certainly not in any hot path and don't justify any inlining, so these are likely oversights rather than intentional. Fixes: b8fa4c23 (hw/arm/smmu: Support nesting in the rest of commands) Signed-off-by: JianChunfu <jansef.jian@hj-micro.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-25hw/display/qxl-render.c: fix qxl_unpack_chunks() chunk size calculationMichael Tokarev1-1/+10
In case of multiple chunks, code in qxl_unpack_chunks() takes size of the wrong (next in the chain) chunk, instead of using current chunk size. This leads to wrong number of bytes being copied, and to crashes if next chunk size is larger than the current one. Based on the code by Gao Yong. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1628 Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Thomas Huth <thuth@redhat.com>
2025-07-21Merge tag 'pull-ppc-20250721' of https://github.com/legoater/qemu into stagingStefan Hajnoczi9-465/+1063
ppc/xive queue: * Various bug fixes around lost interrupts particularly. * Major group interrupt work, in particular around redistributing interrupts. Upstream group support is not in a complete or usable state as it is. * Significant context push/pull improvements, particularly pool and phys context handling was quite incomplete beyond trivial OPAL case that pushes at boot. * Improved tracing and checking for unimp and guest error situations. * Various other missing feature support. # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEEoPZlSPBIlev+awtgUaNDx8/77KEFAmh951cACgkQUaNDx8/7 # 7KFK6w//SAmZpNmE380UN4OxMBcjsT5m5Cf2hy+Wq9pSEcwWckBFT03HyR86JAv3 # QLR1d6yx7dY0aVWAHtFC24vlU2jpv0Io97wfX9VbgG7e4TY/i1vRMSXYYehXuU/Y # gLrwuJGxAMKWrd+4ymvHOyXHRAq3LMGQQYfqLCB77b8UJ18JyCL8FwAl/D6EsZ1y # nUW8WlDy6qQ/SJQHZZ664kyJEv7Qw4xd81ZnmoPsy3xVd7c4ASNBWvDTjRoUn2EN # sfJW76UqqFn3EqASaKsqoNPHu3kklQ/AX3KlE1wFCBjYoXwl/051wIX4RIb+b2S4 # SLtc/YSAie1n2Pp1sghfLRFiRpjrmnqaLlw04Buw1TXY2OaQbFc9zTkc9rvFSez1 # cNjdJcvm3myAWy2Pg//Nt3FgCqfMlrrdTlyGsdqmrEaplBy6pHnas+82o5tPGC3t # SBMgTDqNMq0v/V/gOIsmHc5/9f+FS5s+v/nvm0xJDfLkY39qP73W+YZllYyyuTHY # HiLVjD7x5BSGZAsP9EN6EnL7DPXKPIIQSfNwo2564tAhe3/IyJo8hpGhMeiZ83Hf # G9oPiLa4YljsHzP0UPRNhID5IYyngEDoh2j3AXnew1tkikHd5LIpNCdbtW5x52RR # kik4hBmqJU6sYpO0O9yCd6YWv/Bpm4bDs6tQOSWMc6uWqP0qN8M= # =65BL # -----END PGP SIGNATURE----- # gpg: Signature made Mon 21 Jul 2025 03:08:07 EDT # gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1 # gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full] # gpg: aka "Cédric Le Goater <clg@kaod.org>" [full] # Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1 * tag 'pull-ppc-20250721' of https://github.com/legoater/qemu: (50 commits) ppc/xive2: Enable lower level contexts on VP push ppc/xive: Split need_resend into restore_nvp ppc/xive2: Implement PHYS ring VP push TIMA op ppc/xive2: Implement POOL LGS push TIMA op ppc/xive2: Implement set_os_pending TIMA op ppc/xive2: redistribute group interrupts on context push ppc/xive2: Implement pool context push TIMA op ppc/xive: Check TIMA operations validity ppc/xive: Redistribute phys after pulling of pool context ppc/xive2: Prevent pulling of pool context losing phys interrupt ppc/xive2: implement NVP context save restore for POOL ring ppc/xive: Assert group interrupts were redistributed ppc/xive2: Avoid needless interrupt re-check on CPPR set ppc/xive2: Consolidate presentation processing in context push ppc/xive2: split tctx presentation processing from set CPPR ppc/xive: Add xive_tctx_pipr_set() helper function ppc/xive: tctx_accept only lower irq line if an interrupt was presented ppc/xive: tctx signaling registers rework ppc/xive: Split xive recompute from IPB function ppc/xive: Fix high prio group interrupt being preempted by low prio VP ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-07-21Merge tag 'display-20250718-pull-request' of https://gitlab.com/kraxel/qemu ↵Stefan Hajnoczi11-15/+54
into staging Load ramfb vgabios on x86 only. # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCgAdFiEEoDKM/7k6F6eZAf59TLbY7tPocTgFAmh6o80ACgkQTLbY7tPo # cTjxPBAAktTXxFK6loSMSWC1ul8RCl/4F7G84J4eT+Ui8/KIG8do5KcebTnXb9zo # keOG7n9HPk4fROWiAFgGnuBfw41DWmLDS34iuENrG3X26TQgSSgBveuwas67Pzqu # HpaFSxjh7BRLlkUWaNoll57cDM3kKLmx+Onw6m/7kbcVXAsy1N4wxfCT1faUU7ID # R1ggULG1WhB8q+YtQjac6EfOpdHe1BTBGLuxSwE3mNkce9ZP7C8uxZTCR5PXggZi # IXzJzGpFRDCHqrilWksiE62yF20Kem4ZcpO/GgLWmF+X+DYBDEWcajihvF20TGUL # n6dyT7MBxuvqFy0OtBPHNcnq2PZzOIKyxyMvBg9402xeD6goNbFKloAYeae4C9u0 # QuqQUpb8D3lVagVu55N5XfpdMHR0P8yefPAjaFL4o3rf2JSjyI6MRX/+2eA7aXcX # xiwHSx3iavEeNQNsPZsS3JhH5bKy/zkWRiBd+msGVAYMZGzhdEtLg/w8yUd6dQ5p # /3Y3F4fL6T6QSwhsiihcbdPtjhfVCP09MYK/P4cIFbWOzjfbndt1/UIXHQ54s8Jo # PShcE7QH7ttT2gK5nFPG5yeTqF70kKpSyhwF2pukf2fAgcU+0SNoj2zZNtHAvKeh # 8EHqAy8m1J4AlQeO5nT9tJj/v1CM0q6cljzIfV8hWWgM/hL/vLc= # =76m5 # -----END PGP SIGNATURE----- # gpg: Signature made Fri 18 Jul 2025 15:43:09 EDT # gpg: using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full] # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full] # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full] # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * tag 'display-20250718-pull-request' of https://gitlab.com/kraxel/qemu: hw/i386: Add the ramfb romfile compatibility vfio: Move the TYPE_* to hw/vfio/types.h ramfb: Add property to control if load the romfile Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Conflicts: hw/core/machine.c Context conflict because the vfio-pci "x-migration-load-config-after-iter" was added recently.
2025-07-21Merge tag 'pull-target-arm-20250721' of https://gitlab.com/pm215/qemu into ↵Stefan Hajnoczi2-1/+14
staging target-arm queue: * hvf: arm: Remove $pc from trace_hvf_data_abort() * target/arm: Correct encoding of Debug Communications Channel registers * hw/misc/ivshmem-pci: Improve error handling * target/arm: Provide always-false kvm_arm_*_supported() stubs for usermode * host-utils: Drop workaround for buggy Apple Clang __builtin_subcll() * hw/misc/max78000_aes: Comment Internal Key Storage * docs: Fix Aspeed title * Implement a handful of missing FEAT_SVE_B16_B16 insns * Fix bugs in FMAXQV, FMINQV, etc * Fix assert in LD1Q decode * hvf: arm: Add permission check in GIC sysreg handlers * hvf: arm: Emulate ICC_RPR_EL1 accesses properly * accel/hvf: Display executable bit as 'X' # -----BEGIN PGP SIGNATURE----- # # iQJNBAABCAA3FiEE4aXFk81BneKOgxXPPCUl7RQ2DN4FAmh+OlgZHHBldGVyLm1h # eWRlbGxAbGluYXJvLm9yZwAKCRA8JSXtFDYM3klRD/0QvWyi0z0wbBdIKGi8kury # VP/S1FcqP2w9l0jUAmINxsOYu/+ql8w3t6m2jxlTOYZc9rNauQrxRYGD1GdqfJVn # VCYN47OHRye+iMH6c5jdKyJTi3n2uvT2g8anh2Yt18xOey45Pwr2fTs8rje3N5sH # fvv1mNaeGyA7wgXEY9Z4tEvW19ZPsuKIBd4Ea7klDXwUpTmmQkJMVTKyz7/TefqK # YicpM9E4dMxwNvW/8zrsVH505E4s15OytIjhDci30v2M7Uh3tUIRKo+s44Kk7cEq # HIwO/ra1HEhp8xGU2UfRf643EF1k7A0VUgetHSxYbi1gIknjiSU8Ohnd268CgY7G # /UbjgjFu5mcJgBvoNCwGy0iuCkEfRZ+veq24OjL6GbMvt2utCm9Rumu5KLemLpvW # mB4RexjbT+FDldhz8Ub42sR96UpZ0TSEfwjOswHibA4Zk4o2S6fRv0OqaBMB2dKU # MhcMdBdPXe3SmecRlYoqde+RCUyIOMD46uiJYrBhG6Nfn6SgcnS+ZGB960veaH2r # p5lvyJIBn3/a1KwOET9z5Gp3C6l4TXgJjIaCB4qAWHxeBR/AIobRC71heCc0uPU+ # J3Nm5/p6rcz0vjzs1To0VuXM57qNpQJWu0Un+8CDjpXJ0piyBk4o2iu1dw26bsMs # yrgqlMfDsXNlK/yUdykAbw== # =rQ+N # -----END PGP SIGNATURE----- # gpg: Signature made Mon 21 Jul 2025 09:02:16 EDT # gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE # gpg: issuer "peter.maydell@linaro.org" # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full] # gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full] # gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full] # gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown] # Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE * tag 'pull-target-arm-20250721' of https://gitlab.com/pm215/qemu: accel/hvf: Display executable bit as 'X' hvf: arm: Emulate ICC_RPR_EL1 accesses properly hvf: arm: Add permission check in GIC sysreg handlers target/arm: Make LD1Q decode and trans fn agree about a->u target/arm: Honour FPCR.AH=1 default NaN value in FMAXNMQV, FMINNMQV target/arm: Don't nest H() macro calls in SVE DO_REDUCE target/arm: Correct sense of FPCR.AH test for FMAXQV and FMINQV target/arm: Add BFMLA, BFMLS (indexed) target/arm: Add BFMLA, BFMLS (vectors) target/arm: Add BFMUL (indexed) target/arm: Add BFMIN, BFMAX (predicated) target/arm: Add BFADD, BFSUB, BFMUL, BFMAXNM, BFMINNM (predicated) target/arm: Add BFADD, BFSUB, BFMUL (unpredicated) docs: Fix Aspeed title hw/misc/max78000_aes: Comment Internal Key Storage host-utils: Drop workaround for buggy Apple Clang __builtin_subcll() target/arm: Provide always-false kvm_arm_*_supported() stubs for usermode hw/misc/ivshmem-pci: Improve error handling target/arm: Correct encoding of Debug Communications Channel registers hvf: arm: Remove $pc from trace_hvf_data_abort() Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-07-21hw/misc/max78000_aes: Comment Internal Key StorageJackson Donaldson1-0/+6
Coverity Scan noted an unusual pattern in the MAX78000 aes device, with duplicated calls to set_decrypt. This commit adds a comment noting why the implementation is correct. Signed-off-by: Jackson Donaldson <jcksn@duck.com> Message-id: 20250716002622.84685-1-jcksn@duck.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-21hw/misc/ivshmem-pci: Improve error handlingPeter Maydell1-1/+8
Coverity points out that the ivshmem-pci code has some error handling cases where it incorrectly tries to use an invalid filedescriptor. These generally happen because ivshmem_recv_msg() calls qemu_chr_fe_get_msgfd(), which might return -1, but the code in process_msg() generally assumes that the file descriptor was provided when it was supposed to be. In particular: * the error case in process_msg() only needs to close the fd if one was provided * process_msg_shmem() should fail if no fd was provided Coverity: CID 1508726 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 20250711145012.1521936-1-peter.maydell@linaro.org
2025-07-21ppc/xive2: Enable lower level contexts on VP pushNicholas Piggin1-8/+28
When pushing a context, the lower-level context becomes valid if it had V=1, and so on. Iterate lower level contexts and send them pending interrupts if they become enabled. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-51-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Split need_resend into restore_nvpNicholas Piggin2-24/+28
This is needed by the next patch which will re-send on all lower rings when pushing a context. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-50-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Implement PHYS ring VP push TIMA opNicholas Piggin2-0/+13
Implement the phys (aka hard) VP push. PowerVM uses this operation. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-49-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Implement POOL LGS push TIMA opNicholas Piggin1-0/+8
Implement set LGS for the POOL ring. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-48-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Implement set_os_pending TIMA opNicholas Piggin2-0/+30
xive2 must take into account redistribution of group interrupts if the VP directed priority exceeds the group interrupt priority after this operation. The xive1 code is not group aware so implement this for xive2. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-47-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: redistribute group interrupts on context pushNicholas Piggin1-1/+7
When pushing a context, any presented group interrupt should be redistributed before processing pending interrupts to present highest priority. This can occur when pushing the POOL ring when the valid PHYS ring has a group interrupt presented, because they share signal registers. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-46-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Implement pool context push TIMA opNicholas Piggin2-17/+37
Implement pool context push TIMA op. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-45-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Check TIMA operations validityNicholas Piggin1-81/+115
Certain TIMA operations should only be performed when a ring is valid, others when the ring is invalid, and they are considered undefined if used incorrectly. Add checks for this condition. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-44-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Redistribute phys after pulling of pool contextNicholas Piggin2-2/+17
After pulling the pool context, if a pool irq had been presented and was cleared in the process, there could be a pending irq in phys that should be presented. Process the phys irq ring after pulling pool ring to catch this case and avoid losing irqs. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-43-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Prevent pulling of pool context losing phys interruptNicholas Piggin1-8/+10
When the pool context is pulled, the shared pool/phys signal is reset, which loses the qemu irq if a phys interrupt was presented. Only reset the signal if a poll irq was presented. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-42-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: implement NVP context save restore for POOL ringNicholas Piggin1-16/+35
In preparation to implement POOL context push, add support for POOL NVP context save/restore. The NVP p bit is defined in the spec as follows: If TRUE, the CPPR of a Pool VP in the NVP is updated during store of the context with the CPPR of the Hard context it was running under. It's not clear whether non-pool VPs always or never get CPPR updated. Before this patch, OS contexts always save CPPR, so we will assume that is the behaviour. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-41-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Assert group interrupts were redistributedNicholas Piggin2-0/+3
Add some assertions to try to ensure presented group interrupts do not get lost without being redistributed, if they become precluded by CPPR or preempted by a higher priority interrupt. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-40-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Avoid needless interrupt re-check on CPPR setNicholas Piggin1-1/+3
When CPPR priority is decreased, pending interrupts do not need to be re-checked if one is already presented because by definition that will be the highest priority. This prevents a presented group interrupt from being lost. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-39-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Consolidate presentation processing in context pushNicholas Piggin1-32/+10
OS-push operation must re-present pending interrupts. Use the newly created xive2_tctx_process_pending() function instead of duplicating the logic. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-38-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: split tctx presentation processing from set CPPRNicholas Piggin1-61/+76
The second part of the set CPPR operation is to process (or re-present) any pending interrupts after CPPR is adjusted. Split this presentation processing out into a standalone function that can be used in other places. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-37-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Add xive_tctx_pipr_set() helper functionNicholas Piggin2-37/+18
Have xive_tctx_notify() also set the new PIPR value and rename it to xive_tctx_pipr_set(). This can replace the last xive_tctx_pipr_update() caller because it does not need to update IPB (it already sets it). Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-36-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: tctx_accept only lower irq line if an interrupt was presentedNicholas Piggin1-2/+1
The relationship between an interrupt signaled in the TIMA and the QEMU irq line to the processor to be 1:1, so they should be raised and lowered together and "just in case" lowering should be avoided (it could mask Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-35-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: tctx signaling registers reworkNicholas Piggin2-105/+101
The tctx "signaling" registers (PIPR, CPPR, NSR) raise an interrupt on the target CPU thread. The POOL and PHYS rings both raise hypervisor interrupts, so they both share one set of signaling registers in the PHYS ring. The PHYS NSR register contains a field that indicates which ring has presented the interrupt being signaled to the CPU. This sharing results in all the "alt_regs" throughout the code. alt_regs is not very descriptive, and worse is that the name is used for conversions in both directions, i.e., to find the presenting ring from the signaling ring, and the signaling ring from the presenting ring. Instead of alt_regs, use the names sig_regs and sig_ring, and regs and ring for the presenting ring being worked on. Add a helper function to get the sign_regs, and add some asserts to ensure the POOL regs are never used to signal interrupts. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-34-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Split xive recompute from IPB functionNicholas Piggin1-3/+22
Further split xive_tctx_pipr_update() by splitting out a new function that is used to re-compute the PIPR from IPB. This is generally only used with XIVE1, because group interrputs require more logic. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-33-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Fix high prio group interrupt being preempted by low prio VPNicholas Piggin1-1/+17
xive_tctx_pipr_present() as implemented with xive_tctx_pipr_update() causes VP-directed (group==0) interrupt to be presented in PIPR and NSR despite being a lower priority than the currently presented group interrupt. This must not happen. The IPB bit should record the low priority VP interrupt, but PIPR and NSR must not present the lower priority interrupt. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-32-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Add xive_tctx_pipr_present() to present new interruptNicholas Piggin2-2/+8
xive_tctx_pipr_update() is used for multiple things. In an effort to make things simpler and less overloaded, split out the function that is used to present a new interrupt to the tctx. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-31-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Redistribute group interrupt preempted by higher priority interruptNicholas Piggin1-2/+12
A group interrupt that gets preempted by a higher priority interrupt delivery must be redistributed otherwise it would get lost. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-30-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Change presenter .match_nvt to match not presentNicholas Piggin7-119/+82
Have the match_nvt method only perform a TCTX match but don't present the interrupt, the caller presents. This has no functional change, but allows for more complicated presentation logic after matching. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-29-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: redistribute irqs for pool and phys ctx pullGlenn Miles2-33/+73
When disabling (pulling) an xive interrupt context, we need to redistribute any active group interrupts to other threads that can handle the interrupt if possible. This support had already been added for the OS context but had not yet been added to the pool or physical context. Signed-off-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-28-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Redistribute group interrupt precluded by CPPR updateGlenn Miles1-22/+60
Add support for redistributing a presented group interrupt if it is precluded as a result of changing the CPPR value. Without this, group interrupts can be lost. Signed-off-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-27-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Implement "Ack OS IRQ to even report line" TIMA opGlenn Miles2-3/+55
Booting AIX in a PowerVM partition requires the use of the "Acknowledge O/S Interrupt to even O/S reporting line" special operation provided by the IBM XIVE interrupt controller. This operation is invoked by writing a byte (data is irrelevant) to offset 0xC10 of the Thread Interrupt Management Area (TIMA). It can be used by software to notify the XIVE logic that the interrupt was received. Signed-off-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-26-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Improve pool regs variable nameGlenn Miles1-6/+5
Change pregs to pool_regs, for clarity. [npiggin: split from larger patch] Signed-off-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-25-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive: Add more interrupt notification tracingGlenn Miles3-5/+17
Add more tracing around notification, redistribution, and escalation. Signed-off-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-24-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-21ppc/xive2: Support redistribution of group interruptsGlenn Miles1-4/+80
When an XIVE context is pulled while it has an active, unacknowledged group interrupt, XIVE will check to see if a context on another thread can handle the interrupt and, if so, notify that context. If there are no contexts that can handle the interrupt, then the interrupt is added to a backlog and XIVE will attempt to escalate the interrupt, if configured to do so, allowing the higher privileged handler to activate a context that can handle the original interrupt. Signed-off-by: Glenn Miles <milesg@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Michael Kowal <kowal@linux.ibm.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-23-npiggin@gmail.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
generated by cgit v1.1 at 2025-09-18 15:48:41 +0000