#
3efc5736 |
| 28-Sep-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull x86 kvm updates from Paolo Bonzini: "x86:
- KVM currently invalidates the entirety of the page tables, not just thos
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull x86 kvm updates from Paolo Bonzini: "x86:
- KVM currently invalidates the entirety of the page tables, not just those for the memslot being touched, when a memslot is moved or deleted.
This does not traditionally have particularly noticeable overhead, but Intel's TDX will require the guest to re-accept private pages if they are dropped from the secure EPT, which is a non starter.
Actually, the only reason why this is not already being done is a bug which was never fully investigated and caused VM instability with assigned GeForce GPUs, so allow userspace to opt into the new behavior.
- Advertise AVX10.1 to userspace (effectively prep work for the "real" AVX10 functionality that is on the horizon)
- Rework common MSR handling code to suppress errors on userspace accesses to unsupported-but-advertised MSRs
This will allow removing (almost?) all of KVM's exemptions for userspace access to MSRs that shouldn't exist based on the vCPU model (the actual cleanup is non-trivial future work)
- Rework KVM's handling of x2APIC ICR, again, because AMD (x2AVIC) splits the 64-bit value into the legacy ICR and ICR2 storage, whereas Intel (APICv) stores the entire 64-bit value at the ICR offset
- Fix a bug where KVM would fail to exit to userspace if one was triggered by a fastpath exit handler
- Add fastpath handling of HLT VM-Exit to expedite re-entering the guest when there's already a pending wake event at the time of the exit
- Fix a WARN caused by RSM entering a nested guest from SMM with invalid guest state, by forcing the vCPU out of guest mode prior to signalling SHUTDOWN (the SHUTDOWN hits the VM altogether, not the nested guest)
- Overhaul the "unprotect and retry" logic to more precisely identify cases where retrying is actually helpful, and to harden all retry paths against putting the guest into an infinite retry loop
- Add support for yielding, e.g. to honor NEED_RESCHED, when zapping rmaps in the shadow MMU
- Refactor pieces of the shadow MMU related to aging SPTEs in prepartion for adding multi generation LRU support in KVM
- Don't stuff the RSB after VM-Exit when RETPOLINE=y and AutoIBRS is enabled, i.e. when the CPU has already flushed the RSB
- Trace the per-CPU host save area as a VMCB pointer to improve readability and cleanup the retrieval of the SEV-ES host save area
- Remove unnecessary accounting of temporary nested VMCB related allocations
- Set FINAL/PAGE in the page fault error code for EPT violations if and only if the GVA is valid. If the GVA is NOT valid, there is no guest-side page table walk and so stuffing paging related metadata is nonsensical
- Fix a bug where KVM would incorrectly synthesize a nested VM-Exit instead of emulating posted interrupt delivery to L2
- Add a lockdep assertion to detect unsafe accesses of vmcs12 structures
- Harden eVMCS loading against an impossible NULL pointer deref (really truly should be impossible)
- Minor SGX fix and a cleanup
- Misc cleanups
Generic:
- Register KVM's cpuhp and syscore callbacks when enabling virtualization in hardware, as the sole purpose of said callbacks is to disable and re-enable virtualization as needed
- Enable virtualization when KVM is loaded, not right before the first VM is created
Together with the previous change, this simplifies a lot the logic of the callbacks, because their very existence implies virtualization is enabled
- Fix a bug that results in KVM prematurely exiting to userspace for coalesced MMIO/PIO in many cases, clean up the related code, and add a testcase
- Fix a bug in kvm_clear_guest() where it would trigger a buffer overflow _if_ the gpa+len crosses a page boundary, which thankfully is guaranteed to not happen in the current code base. Add WARNs in more helpers that read/write guest memory to detect similar bugs
Selftests:
- Fix a goof that caused some Hyper-V tests to be skipped when run on bare metal, i.e. NOT in a VM
- Add a regression test for KVM's handling of SHUTDOWN for an SEV-ES guest
- Explicitly include one-off assets in .gitignore. Past Sean was completely wrong about not being able to detect missing .gitignore entries
- Verify userspace single-stepping works when KVM happens to handle a VM-Exit in its fastpath
- Misc cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits) Documentation: KVM: fix warning in "make htmldocs" s390: Enable KVM_S390_UCONTROL config in debug_defconfig selftests: kvm: s390: Add VM run test case KVM: SVM: let alternatives handle the cases when RSB filling is required KVM: VMX: Set PFERR_GUEST_{FINAL,PAGE}_MASK if and only if the GVA is valid KVM: x86/mmu: Use KVM_PAGES_PER_HPAGE() instead of an open coded equivalent KVM: x86/mmu: Add KVM_RMAP_MANY to replace open coded '1' and '1ul' literals KVM: x86/mmu: Fold mmu_spte_age() into kvm_rmap_age_gfn_range() KVM: x86/mmu: Morph kvm_handle_gfn_range() into an aging specific helper KVM: x86/mmu: Honor NEED_RESCHED when zapping rmaps and blocking is allowed KVM: x86/mmu: Add a helper to walk and zap rmaps for a memslot KVM: x86/mmu: Plumb a @can_yield parameter into __walk_slot_rmaps() KVM: x86/mmu: Move walk_slot_rmaps() up near for_each_slot_rmap_range() KVM: x86/mmu: WARN on MMIO cache hit when emulating write-protected gfn KVM: x86/mmu: Detect if unprotect will do anything based on invalid_list KVM: x86/mmu: Subsume kvm_mmu_unprotect_page() into the and_retry() version KVM: x86: Rename reexecute_instruction()=>kvm_unprotect_and_retry_on_failure() KVM: x86: Update retry protection fields when forcing retry on emulation failure KVM: x86: Apply retry protection to "unprotect on failure" path KVM: x86: Check EMULTYPE_WRITE_PF_TO_SP before unprotecting gfn ...
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Revision tags: v6.11 |
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#
55e6f8f2 |
| 14-Sep-2024 |
Paolo Bonzini <pbonzini@redhat.com> |
Merge tag 'kvm-x86-svm-6.12' of https://github.com/kvm-x86/linux into HEAD
KVM SVM changes for 6.12:
- Don't stuff the RSB after VM-Exit when RETPOLINE=y and AutoIBRS is enabled, i.e. when the
Merge tag 'kvm-x86-svm-6.12' of https://github.com/kvm-x86/linux into HEAD
KVM SVM changes for 6.12:
- Don't stuff the RSB after VM-Exit when RETPOLINE=y and AutoIBRS is enabled, i.e. when the CPU has already flushed the RSB.
- Trace the per-CPU host save area as a VMCB pointer to improve readability and cleanup the retrieval of the SEV-ES host save area.
- Remove unnecessary accounting of temporary nested VMCB related allocations.
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Revision tags: v6.11-rc7, v6.11-rc6, v6.11-rc5, v6.11-rc4, v6.11-rc3 |
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#
4440337a |
| 07-Aug-2024 |
Amit Shah <amit.shah@amd.com> |
KVM: SVM: let alternatives handle the cases when RSB filling is required
Remove superfluous RSB filling after a VMEXIT when the CPU already has flushed the RSB after a VMEXIT when AutoIBRS is enable
KVM: SVM: let alternatives handle the cases when RSB filling is required
Remove superfluous RSB filling after a VMEXIT when the CPU already has flushed the RSB after a VMEXIT when AutoIBRS is enabled.
The initial implementation for adding RETPOLINES added an ALTERNATIVES implementation for filling the RSB after a VMEXIT in commit 117cc7a908c8 ("x86/retpoline: Fill return stack buffer on vmexit").
Later, X86_FEATURE_RSB_VMEXIT was added in commit 9756bba28470 ("x86/speculation: Fill RSB on vmexit for IBRS") to handle stuffing the RSB if RETPOLINE=y *or* KERNEL_IBRS=y, i.e. to also stuff the RSB if the kernel is configured to do IBRS mitigations on entry/exit.
The AutoIBRS (on AMD) feature implementation added in commit e7862eda309e ("x86/cpu: Support AMD Automatic IBRS") used the already-implemented logic for EIBRS in spectre_v2_determine_rsb_fill_type_on_vmexit() -- but did not update the code at VMEXIT to act on the mode selected in that function -- resulting in VMEXITs continuing to clear the RSB when RETPOLINES are enabled, despite the presence of AutoIBRS.
Signed-off-by: Amit Shah <amit.shah@amd.com> Link: https://lore.kernel.org/r/20240807123531.69677-1-amit@kernel.org [sean: massage changeloge, drop comment about AMD not needing RSB_VMEXIT_LITE] Signed-off-by: Sean Christopherson <seanjc@google.com>
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Revision tags: v6.11-rc2, v6.11-rc1 |
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#
a23e1966 |
| 15-Jul-2024 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.11 merge window.
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Revision tags: v6.10, v6.10-rc7, v6.10-rc6, v6.10-rc5, v6.10-rc4, v6.10-rc3, v6.10-rc2 |
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#
6f47c7ae |
| 28-May-2024 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v6.9' into next
Sync up with the mainline to bring in the new cleanup API.
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#
92815da4 |
| 12-Jun-2024 |
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> |
Merge remote-tracking branch 'drm-misc/drm-misc-next' into HEAD
Merge drm-misc-next tree into the msm-next tree in order to be able to use HDMI connector framework for the MSM HDMI driver.
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Revision tags: v6.10-rc1 |
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#
60a2f25d |
| 16-May-2024 |
Tvrtko Ursulin <tursulin@ursulin.net> |
Merge drm/drm-next into drm-intel-gt-next
Some display refactoring patches are needed in order to allow conflict- less merging.
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
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Revision tags: v6.9, v6.9-rc7 |
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#
aa66c93d |
| 03-May-2024 |
Rodrigo Vivi <rodrigo.vivi@intel.com> |
Merge drm/drm-next into drm-intel-next
A backmerge to sync xe and i915 and allow us to merge "Enable display support for Battlemage" series through drm-intel
Link: https://patchwork.freedesktop.org
Merge drm/drm-next into drm-intel-next
A backmerge to sync xe and i915 and allow us to merge "Enable display support for Battlemage" series through drm-intel
Link: https://patchwork.freedesktop.org/series/132429/
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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#
ae22b2f1 |
| 02-May-2024 |
Thomas Hellström <thomas.hellstrom@linux.intel.com> |
Merge drm/drm-next into drm-xe-next
Avoid falling too far behind drm-next.
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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#
594ce0b8 |
| 10-Jun-2024 |
Russell King (Oracle) <rmk+kernel@armlinux.org.uk> |
Merge topic branches 'clkdev' and 'fixes' into for-linus
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#
f73a058b |
| 28-May-2024 |
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> |
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
v6.10-rc1 is released, forward from v6.9
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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Revision tags: v6.9-rc6 |
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#
0d31ea58 |
| 23-Apr-2024 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
Merge 6.9-rc5 into usb-next
We need the usb/thunderbolt fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
e5019b14 |
| 23-Apr-2024 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
Merge 6.9-rc5 into driver-core-next
We want the kernfs fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
660a7080 |
| 23-Apr-2024 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
Merge 6.9-rc5 into tty-next
We want the tty fixes in here as well, and it resolves a merge conflict in: drivers/tty/serial/serial_core.c as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfou
Merge 6.9-rc5 into tty-next
We want the tty fixes in here as well, and it resolves a merge conflict in: drivers/tty/serial/serial_core.c as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
df1aa5b0 |
| 23-Apr-2024 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
Merge 6.9-rc5 into char-misc-next
We need the char/misc fixes in here as well to work off of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
173b0b5b |
| 22-Apr-2024 |
Arnaldo Carvalho de Melo <acme@redhat.com> |
Merge remote-tracking branch 'torvalds/master' into perf-tools-next
To pick up fixes sent via perf-tools, by Namhyung Kim.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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#
ad112b3a |
| 02-May-2024 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'v6.9-rc6' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Revision tags: v6.9-rc5, v6.9-rc4, v6.9-rc3, v6.9-rc2, v6.9-rc1 |
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#
b228ab57 |
| 18-Mar-2024 |
Andrew Morton <akpm@linux-foundation.org> |
Merge branch 'master' into mm-stable
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#
3a07362f |
| 13-May-2024 |
Takashi Iwai <tiwai@suse.de> |
Merge tag 'asoc-v6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v6.10
This is a very big update, in large part due to extensive work the Int
Merge tag 'asoc-v6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v6.10
This is a very big update, in large part due to extensive work the Intel people have been doing in their drivers though it's also been busy elsewhere. There's also a big overhaul of the DAPM documentation from Luca Ceresoli arising from the work he did putting together his recent ELC talk, and he also contributed a new tool for visualising the DAPM state.
- A new tool dapm-graph for visualising the DAPM state. - Substantial fixes and clarifications for the DAPM documentation. - Very large updates throughout the Intel audio drivers. - Cleanups of accessors for driver data, module labelling, and for constification. - Modernsation and cleanup work in the Mediatek drivers. - Several fixes and features for the DaVinci I2S driver. - New drivers for several AMD and Intel platforms, Nuvoton NAU8325, Rockchip RK3308 and Texas Instruments PCM6240.
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#
4232da23 |
| 10-May-2024 |
Paolo Bonzini <pbonzini@redhat.com> |
Merge tag 'loongarch-kvm-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD
LoongArch KVM changes for v6.10
1. Add ParaVirt IPI support. 2. Add software brea
Merge tag 'loongarch-kvm-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD
LoongArch KVM changes for v6.10
1. Add ParaVirt IPI support. 2. Add software breakpoint support. 3. Add mmio trace events support.
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#
9f6bdb0a |
| 30-Apr-2024 |
Mark Brown <broonie@kernel.org> |
ASoC: doc: dapm: various improvements
Merge series from Luca Ceresoli <luca.ceresoli@bootlin.com>:
This series applies various improvements to the DAPM documentation: a rewrite of a few sections fo
ASoC: doc: dapm: various improvements
Merge series from Luca Ceresoli <luca.ceresoli@bootlin.com>:
This series applies various improvements to the DAPM documentation: a rewrite of a few sections for clarity, style improvements and typo fixes.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> --- Changes in v2: - avoid wrapping in patch 3 as suggested by Alex - Link to v1: https://lore.kernel.org/r/20240416-dapm-docs-v1-0-a818d2819bf6@bootlin.com
--- Luca Ceresoli (12): ASoC: doc: dapm: fix typos ASoC: doc: dapm: fix struct name ASoC: doc: dapm: minor rewording ASoC: doc: dapm: remove dash after colon ASoC: doc: dapm: clarify it's an internal API ASoC: doc: dapm: replace "map" with "graph" ASoC: doc: dapm: extend initial descrption ASoC: doc: dapm: describe how widgets and routes are registered ASoC: doc: dapm: fix and improve section "Registering DAPM controls" ASoC: doc: dapm: improve section "Codec/DSP Widget Interconnections" ASoC: doc: dapm: update section "DAPM Widget Events" ASoC: doc: dapm: update event types
Documentation/sound/soc/dapm-graph.svg | 375 +++++++++++++++++++++++++++++++++ Documentation/sound/soc/dapm.rst | 174 ++++++++++----- 2 files changed, 492 insertions(+), 57 deletions(-) --- base-commit: c942a0cd3603e34dd2d7237e064d9318cb7f9654 change-id: 20240315-dapm-docs-79bd51f267db
Best regards, -- Luca Ceresoli <luca.ceresoli@bootlin.com>
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#
2bd87951 |
| 25-Apr-2024 |
Jakub Kicinski <kuba@kernel.org> |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Conflicts:
drivers/net/ethernet/ti/icssg/icssg_prueth.c
net/mac80211/chan.c 8988
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Conflicts:
drivers/net/ethernet/ti/icssg/icssg_prueth.c
net/mac80211/chan.c 89884459a0b9 ("wifi: mac80211: fix idle calculation with multi-link") 87f5500285fb ("wifi: mac80211: simplify ieee80211_assign_link_chanctx()") https://lore.kernel.org/all/20240422105623.7b1fbda2@canb.auug.org.au/
net/unix/garbage.c 1971d13ffa84 ("af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc().") 4090fa373f0e ("af_unix: Replace garbage collection algorithm.")
drivers/net/ethernet/ti/icssg/icssg_prueth.c drivers/net/ethernet/ti/icssg/icssg_common.c 4dcd0e83ea1d ("net: ti: icssg-prueth: Fix signedness bug in prueth_init_rx_chns()") e2dc7bfd677f ("net: ti: icssg-prueth: Move common functions into a separate file")
No adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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#
c058e7a8 |
| 23-Apr-2024 |
Maxime Ripard <mripard@kernel.org> |
Merge drm/drm-next into drm-misc-next
Maíra needs a backmerge to apply v3d patches, and Danilo for some nouveau patches.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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#
0208ca55 |
| 22-Apr-2024 |
Dave Airlie <airlied@redhat.com> |
Backmerge tag 'v6.9-rc5' into drm-next
Linux 6.9-rc5
I've had a persistent msm failure on clang, and the fix is in fixes so just pull it back to fix that.
Signed-off-by: Dave Airlie <airlied@redha
Backmerge tag 'v6.9-rc5' into drm-next
Linux 6.9-rc5
I've had a persistent msm failure on clang, and the fix is in fixes so just pull it back to fix that.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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#
79790b68 |
| 12-Apr-2024 |
Thomas Hellström <thomas.hellstrom@linux.intel.com> |
Merge drm/drm-next into drm-xe-next
Backmerging drm-next in order to get up-to-date and in particular to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.
Signed-off-by: Thomas Hellström <tho
Merge drm/drm-next into drm-xe-next
Backmerging drm-next in order to get up-to-date and in particular to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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