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qemu/PPC-KVM-Disable-mmu-notifier-check.patch
José Ricardo Ziviani 7f46c79c5d Accepting request 914430 from home:jziviani:branches:Virtualization
- Update to v6.1: see https://wiki.qemu.org/ChangeLog/6.1
  For a full list of formely deprecated features that are removed,
  consult: https://qemu-project.gitlab.io/qemu/about/removed-features.html
  For a list of new deprecated features, consult:
  https://qemu-project.gitlab.io/qemu/about/deprecated.html
  Some noteworthy changes:
* Removed moxie CPU.
* Removed lm32 CPU.
* Removed unicore32 CPU.
* Removed 'info cpustats'.
* Added Aspeed machines: rainier-bmc, quanta-q7l1-bmc.
* Added npcm7xx machine: quanta-gbs-bmc.
* Model for Aspeed's Hash and Crypto Engine.
* SVE2 is now emulated, including bfloat16 support
* FEAT_I8MM, FEAT_TLBIOS, FEAT_TLBRANGE, FEAT_BF16, FEAT_AA32BF16, and
  FEAT_MTE3 are now emulated.
* Improved hot-unplug failures on PowerPC pseries machine.
* Implemented some POWER10 instructions in TCG.
* Added shakti_c RISC-V machine.
* Improved documentation for RISC-V machines.
* CPU models for gen16 have been added for s390x.
* New CPU model versions added with XSAVES enabled:
  Skylake-Client-v4, Skylake-Server-v5, Cascadelake-Server-v5,
  Cooperlake-v2, Icelake-Client-v3, Icelake-Server-v5, Denverton-v3,
  Snowridge-v3, Dhyana-v2
* Added ACPI based PCI hotplug support to Q35 machine. Enabled and
  used by default since pc-q35-6.1 machine type.
* Added support for the pca9546 and pca9548 I2C muxes.
* Added support for PMBus and several PMBus devices.
* Crypto subsystem:
  The preferred crypto backend driver now gnutls, with libgcrypt as the
  second choice, and nettle as third choice, with ordering driven mostly
  by performance of the ciphers.
* Misc doc improvements.
* Patches removed:
  block-nvme-Fix-VFIO_MAP_DMA-failed-No-sp.patch
  hmp-Fix-loadvm-to-resume-the-VM-on-succe.patch
  hw-block-nvme-align-with-existing-style.patch
  hw-block-nvme-consider-metadata-read-aio.patch
  hw-net-can-sja1000-fix-buff2frame_bas-an.patch
  hw-nvme-fix-missing-check-for-PMR-capabi.patch
  hw-nvme-fix-pin-based-interrupt-behavior.patch
  hw-pci-host-q35-Ignore-write-of-reserved.patch
  hw-rdma-Fix-possible-mremap-overflow-in-.patch
  hw-rx-rx-gdbsim-Do-not-accept-invalid-me.patch
  hw-usb-Do-not-build-USB-subsystem-if-not.patch
  hw-usb-host-stub-Remove-unused-header.patch
  linux-user-aarch64-Enable-hwcap-for-RND-.patch
  module-for-virtio-gpu-pre-load-module-to.patch
  monitor-qmp-fix-race-on-CHR_EVENT_CLOSED.patch
  pvrdma-Ensure-correct-input-on-ring-init.patch
  pvrdma-Fix-the-ring-init-error-flow-CVE-.patch
  qemu-config-load-modules-when-instantiat.patch
  qemu-config-parse-configuration-files-to.patch
  qemu-config-use-qemu_opts_from_qdict.patch
  runstate-Initialize-Error-to-NULL.patch
  sockets-update-SOCKET_ADDRESS_TYPE_FD-li.patch
  target-i386-Exit-tb-after-wrmsr.patch
  target-sh4-Return-error-if-CPUClass-get_.patch
  tcg-Allocate-sufficient-storage-in-temp_.patch
  tcg-arm-Fix-tcg_out_op-function-signatur.patch
  tcg-sparc-Fix-temp_allocate_frame-vs-spa.patch
  ui-Fix-memory-leak-in-qemu_xkeymap_mappi.patch
  usb-hid-avoid-dynamic-stack-allocation.patch
  usb-limit-combined-packets-to-1-MiB-CVE-.patch
  usb-mtp-avoid-dynamic-stack-allocation.patch
  usb-redir-avoid-dynamic-stack-allocation.patch
  usbredir-fix-free-call.patch
  vfio-ccw-Permit-missing-IRQs.patch
  vhost-user-blk-Check-that-num-queues-is-.patch
  vhost-user-blk-Don-t-reconnect-during-in.patch
  vhost-user-blk-Fail-gracefully-on-too-la.patch
  vhost-user-blk-Get-more-feature-flags-fr.patch
  vhost-user-blk-Make-sure-to-set-Error-on.patch
  vhost-user-gpu-abstract-vg_cleanup_mappi.patch
  vhost-user-gpu-fix-leak-in-virgl_cmd_res.patch
  vhost-user-gpu-fix-leak-in-virgl_resourc.patch
  vhost-user-gpu-fix-memory-disclosure-in-.patch
  vhost-user-gpu-fix-memory-leak-in-vg_res.patch
  vhost-user-gpu-fix-memory-leak-while-cal.patch
  vhost-user-gpu-fix-OOB-write-in-virgl_cm.patch
  vhost-user-gpu-fix-resource-leak-in-vg_r.patch
  vhost-vdpa-don-t-initialize-backend_feat.patch
  virtio-blk-Fix-rollback-path-in-virtio_b.patch
  virtio-Fail-if-iommu_platform-is-request.patch
  virtiofsd-Fix-side-effect-in-assert.patch
  vl-allow-not-specifying-size-in-m-when-u.patch
  vl-Fix-an-assert-failure-in-error-path.patch
  vl-plug-object-back-into-readconfig.patch
  vl-plumb-keyval-based-options-into-readc.patch
  x86-acpi-use-offset-instead-of-pointer-w.patch

OBS-URL: https://build.opensuse.org/request/show/914430
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=665
2021-08-26 17:37:40 +00:00

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1.1 KiB
Diff

From: Alexander Graf <agraf@suse.de>
Date: Fri, 6 Jan 2012 01:05:55 +0100
Subject: PPC: KVM: Disable mmu notifier check
When using hugetlbfs (which is required for HV mode KVM on 970), we
check for MMU notifiers that on 970 can not be implemented properly.
So disable the check for mmu notifiers on PowerPC guests, making
KVM guests work there, even if possibly racy in some odd circumstances.
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
softmmu/physmem.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 2e18947598eec3dfb6abe91be933..655fb3afb6e23c42868d241d6760 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -2059,11 +2059,13 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
return NULL;
}
+#ifndef TARGET_PPC
if (kvm_enabled() && !kvm_has_sync_mmu()) {
error_setg(errp,
"host lacks kvm mmu notifiers, -mem-path unsupported");
return NULL;
}
+#endif
size = HOST_PAGE_ALIGN(size);
file_size = get_file_size(fd);