History log of /linux/arch/x86/kvm/Makefile (Results 51 – 75 of 710)
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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>


# 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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Revision tags: v6.9-rc1
# 5f18c642 18-Mar-2024 Paolo Bonzini <pbonzini@redhat.com>

KVM: VMX: Move out vmx_x86_ops to 'main.c' to dispatch VMX and TDX

KVM accesses Virtual Machine Control Structure (VMCS) with VMX instructions
to operate on VM. TDX doesn't allow VMM to operate VMC

KVM: VMX: Move out vmx_x86_ops to 'main.c' to dispatch VMX and TDX

KVM accesses Virtual Machine Control Structure (VMCS) with VMX instructions
to operate on VM. TDX doesn't allow VMM to operate VMCS directly.
Instead, TDX has its own data structures, and TDX SEAMCALL APIs for VMM to
indirectly operate those data structures. This means we must have a TDX
version of kvm_x86_ops.

The existing global struct kvm_x86_ops already defines an interface which
can be adapted to TDX, but kvm_x86_ops is a system-wide, not per-VM
structure. To allow VMX to coexist with TDs, the kvm_x86_ops callbacks
will have wrappers "if (tdx) tdx_op() else vmx_op()" to pick VMX or
TDX at run time.

To split the runtime switch, the VMX implementation, and the TDX
implementation, add main.c, and move out the vmx_x86_ops hooks in
preparation for adding TDX. Use 'vt' for the naming scheme as a nod to
VT-x and as a concatenation of VmxTdx.

The eventually converted code will look like this:

vmx.c:
vmx_op() { ... }
VMX initialization
tdx.c:
tdx_op() { ... }
TDX initialization
x86_ops.h:
vmx_op();
tdx_op();
main.c:
static vt_op() { if (tdx) tdx_op() else vmx_op() }
static struct kvm_x86_ops vt_x86_ops = {
.op = vt_op,
initialization functions call both VMX and TDX initialization

Opportunistically, fix the name inconsistency from vmx_create_vcpu() and
vmx_free_vcpu() to vmx_vcpu_create() and vmx_vcpu_free().

Co-developed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Yuan Yao <yuan.yao@intel.com>
Message-Id: <e603c317587f933a9d1bee8728c84e4935849c16.1705965634.git.isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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# f9cecb3c 04-Apr-2024 Paolo Bonzini <pbonzini@redhat.com>

Merge branch 'kvm-sev-init2' into HEAD

The idea that no parameter would ever be necessary when enabling SEV or
SEV-ES for a VM was decidedly optimistic. The first source of variability
that was enc

Merge branch 'kvm-sev-init2' into HEAD

The idea that no parameter would ever be necessary when enabling SEV or
SEV-ES for a VM was decidedly optimistic. The first source of variability
that was encountered is the desired set of VMSA features, as that affects
the measurement of the VM's initial state and cannot be changed
arbitrarily by the hypervisor.

This series adds all the APIs that are needed to customize the features,
with room for future enhancements:

- a new /dev/kvm device attribute to retrieve the set of supported
features (right now, only debug swap)

- a new sub-operation for KVM_MEM_ENCRYPT_OP that can take a struct,
replacing the existing KVM_SEV_INIT and KVM_SEV_ES_INIT

It then puts the new op to work by including the VMSA features as a field
of the The existing KVM_SEV_INIT and KVM_SEV_ES_INIT use the full set of
supported VMSA features for backwards compatibility; but I am considering
also making them use zero as the feature mask, and will gladly adjust the
patches if so requested.

In order to avoid creating *two* new KVM_MEM_ENCRYPT_OPs, I decided that
I could as well make SEV and SEV-ES use VM types. This allows SEV-SNP
to reuse the KVM_SEV_INIT2 ioctl.

And while at it, KVM_SEV_INIT2 also includes two bugfixes. First of all,
SEV-ES VM, when created with the new VM type instead of KVM_SEV_ES_INIT,
reject KVM_GET_REGS/KVM_SET_REGS and friends on the vCPU file descriptor
once the VMSA has been encrypted... which is how the API should have
always behaved. Second, they also synchronize the FPU and AVX state.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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# 0d7bf5e5 04-Apr-2024 Paolo Bonzini <pbonzini@redhat.com>

KVM: SVM: Compile sev.c if and only if CONFIG_KVM_AMD_SEV=y

Stop compiling sev.c when CONFIG_KVM_AMD_SEV=n, as the number of #ifdefs
in sev.c is getting ridiculous, and having #ifdefs inside of SEV

KVM: SVM: Compile sev.c if and only if CONFIG_KVM_AMD_SEV=y

Stop compiling sev.c when CONFIG_KVM_AMD_SEV=n, as the number of #ifdefs
in sev.c is getting ridiculous, and having #ifdefs inside of SEV helpers
is quite confusing.

To minimize #ifdefs in code flows, #ifdef away only the kvm_x86_ops hooks
and the #VMGEXIT handler. Stubs are also restricted to functions that
check sev_enabled and to the destruction functions sev_free_cpu() and
sev_vm_destroy(), where the style of their callers is to leave checks
to the callers. Most call sites instead rely on dead code elimination
to take care of functions that are guarded with sev_guest() or
sev_es_guest().

Signed-off-by: Sean Christopherson <seanjc@google.com>
Co-developed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240404121327.3107131-3-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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# 3e5a516f 08-Apr-2024 Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Merge tag 'phy_dp_modes_6.10' into msm-next-lumag

Merge DisplayPort subnode API in order to allow DisplayPort driver to
configure the PHYs either to the DP or eDP mode, depending on hardware
configu

Merge tag 'phy_dp_modes_6.10' into msm-next-lumag

Merge DisplayPort subnode API in order to allow DisplayPort driver to
configure the PHYs either to the DP or eDP mode, depending on hardware
configuration.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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# 5add703f 02-Apr-2024 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Catching up on 6.9-rc2

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


# 0d21364c 02-Apr-2024 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.9-rc2 changes into drm-misc-next.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# b7e1e969 26-Mar-2024 Takashi Iwai <tiwai@suse.de>

Merge branch 'topic/sound-devel-6.10' into for-next


# 537c2e91 22-Mar-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.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>


Revision tags: v6.8, v6.8-rc7
# 06d07429 29-Feb-2024 Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-next

Sync to get the drm_printer changes to drm-intel-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>


# 5b9b2e6b 11-Apr-2024 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.9-rc3' into x86/boot, to pick up fixes before queueing up more changes

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# d1eec383 09-Apr-2024 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.9-rc3' into locking/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# 0e6ebfd1 09-Apr-2024 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.9-rc3' into x86/cpu, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# 9b4e5285 03-Apr-2024 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.9-rc2' into perf/core, to pick up dependent commits

Pick up fixes that followup patches are going to depend on.

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# 6a2bcf92 03-Apr-2024 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.9-rc2' into x86/percpu, to pick up fixes and resolve conflict

Conflicts:
arch/x86/Kconfig

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# f4566a1e 25-Mar-2024 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.9-rc1' into sched/core, to pick up fixes and to refresh the branch

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# 81777226 20-Apr-2024 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
"This is a bit on the large side, mostly due to two changes:

- Changes to disable some brok

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
"This is a bit on the large side, mostly due to two changes:

- Changes to disable some broken PMU virtualization (see below for
details under "x86 PMU")

- Clean up SVM's enter/exit assembly code so that it can be compiled
without OBJECT_FILES_NON_STANDARD. This fixes a warning "Unpatched
return thunk in use. This should not happen!" when running KVM
selftests.

Everything else is small bugfixes and selftest changes:

- Fix a mostly benign bug in the gfn_to_pfn_cache infrastructure
where KVM would allow userspace to refresh the cache with a bogus
GPA. The bug has existed for quite some time, but was exposed by a
new sanity check added in 6.9 (to ensure a cache is either
GPA-based or HVA-based).

- Drop an unused param from gfn_to_pfn_cache_invalidate_start() that
got left behind during a 6.9 cleanup.

- Fix a math goof in x86's hugepage logic for
KVM_SET_MEMORY_ATTRIBUTES that results in an array overflow
(detected by KASAN).

- Fix a bug where KVM incorrectly clears root_role.direct when
userspace sets guest CPUID.

- Fix a dirty logging bug in the where KVM fails to write-protect
SPTEs used by a nested guest, if KVM is using Page-Modification
Logging and the nested hypervisor is NOT using EPT.

x86 PMU:

- Drop support for virtualizing adaptive PEBS, as KVM's
implementation is architecturally broken without an obvious/easy
path forward, and because exposing adaptive PEBS can leak host LBRs
to the guest, i.e. can leak host kernel addresses to the guest.

- Set the enable bits for general purpose counters in
PERF_GLOBAL_CTRL at RESET time, as done by both Intel and AMD
processors.

- Disable LBR virtualization on CPUs that don't support LBR
callstacks, as KVM unconditionally uses
PERF_SAMPLE_BRANCH_CALL_STACK when creating the perf event, and
would fail on such CPUs.

Tests:

- Fix a flaw in the max_guest_memory selftest that results in it
exhausting the supply of ucall structures when run with more than
256 vCPUs.

- Mark KVM_MEM_READONLY as supported for RISC-V in
set_memory_region_test"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (30 commits)
KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start()
KVM: selftests: Add coverage of EPT-disabled to vmx_dirty_log_test
KVM: x86/mmu: Fix and clarify comments about clearing D-bit vs. write-protecting
KVM: x86/mmu: Remove function comments above clear_dirty_{gfn_range,pt_masked}()
KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status
KVM: x86/mmu: Precisely invalidate MMU root_role during CPUID update
KVM: VMX: Disable LBR virtualization if the CPU doesn't support LBR callstacks
perf/x86/intel: Expose existence of callback support to KVM
KVM: VMX: Snapshot LBR capabilities during module initialization
KVM: x86/pmu: Do not mask LVTPC when handling a PMI on AMD platforms
KVM: x86: Snapshot if a vCPU's vendor model is AMD vs. Intel compatible
KVM: x86: Stop compiling vmenter.S with OBJECT_FILES_NON_STANDARD
KVM: SVM: Create a stack frame in __svm_sev_es_vcpu_run()
KVM: SVM: Save/restore args across SEV-ES VMRUN via host save area
KVM: SVM: Save/restore non-volatile GPRs in SEV-ES VMRUN via host save area
KVM: SVM: Clobber RAX instead of RBX when discarding spec_ctrl_intercepted
KVM: SVM: Drop 32-bit "support" from __svm_sev_es_vcpu_run()
KVM: SVM: Wrap __svm_sev_es_vcpu_run() with #ifdef CONFIG_KVM_AMD_SEV
KVM: SVM: Create a stack frame in __svm_vcpu_run() for unwinding
KVM: SVM: Remove a useless zeroing of allocated memory
...

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# 44ecfa3e 17-Apr-2024 Paolo Bonzini <pbonzini@redhat.com>

Merge branch 'svm' of https://github.com/kvm-x86/linux into HEAD

Clean up SVM's enter/exit assembly code so that it can be compiled
without OBJECT_FILES_NON_STANDARD. The "standard" __svm_vcpu_run(

Merge branch 'svm' of https://github.com/kvm-x86/linux into HEAD

Clean up SVM's enter/exit assembly code so that it can be compiled
without OBJECT_FILES_NON_STANDARD. The "standard" __svm_vcpu_run() can't
be made 100% bulletproof, as RBP isn't restored on #VMEXIT, but that's
also the case for __vmx_vcpu_run(), and getting "close enough" is better
than not even trying.

As for SEV-ES, after yet another refresher on swap types, I realized
KVM can simply let the hardware restore registers after #VMEXIT, all
that's missing is storing the current values to the host save area
(they are swap type B). This should provide 100% accuracy when using
stack frames for unwinding, and requires less assembly.

In between, build the SEV-ES code iff CONFIG_KVM_AMD_SEV=y, and yank out
"support" for 32-bit kernels in __svm_sev_es_vcpu_run, which was
unnecessarily polluting the code for a configuration that is disabled
at build time.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Revision tags: v6.8-rc6
# 27ca8670 23-Feb-2024 Sean Christopherson <seanjc@google.com>

KVM: x86: Stop compiling vmenter.S with OBJECT_FILES_NON_STANDARD

Stop compiling vmenter.S with OBJECT_FILES_NON_STANDARD to skip objtool's
stack validation now that __svm_vcpu_run() and __svm_sev_e

KVM: x86: Stop compiling vmenter.S with OBJECT_FILES_NON_STANDARD

Stop compiling vmenter.S with OBJECT_FILES_NON_STANDARD to skip objtool's
stack validation now that __svm_vcpu_run() and __svm_sev_es_vcpu_run()
create stack frames (though the former's effectiveness is dubious).

Note, due to a quirk in how OBJECT_FILES_NON_STANDARD was handled by the
build system prior to commit bf48d9b756b9 ("kbuild: change tool coverage
variables to take the path relative to $(obj)"), vmx/vmenter.S got lumped
in with svm/vmenter.S. __vmx_vcpu_run() already plays nice with frame
pointers, i.e. it was collateral damage when commit 7f4b5cde2409 ("kvm:
Disable objtool frame pointer checking for vmenter.S") added the
OBJECT_FILES_NON_STANDARD hack-a-fix.

Link: https://lore.kernel.org/all/20240217055504.2059803-1-masahiroy@kernel.org
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20240223204233.3337324-9-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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# 100c8542 05-Apr-2024 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-fix-v6.9-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.9

A relatively large set of fixes here, the biggest piece of it is a

Merge tag 'asoc-fix-v6.9-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.9

A relatively large set of fixes here, the biggest piece of it is a
series correcting some problems with the delay reporting for Intel SOF
cards but there's a bunch of other things. Everything here is driver
specific except for a fix in the core for an issue with sign extension
handling volume controls.

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# 52b761b4 02-Apr-2024 Paolo Bonzini <pbonzini@redhat.com>

Merge tag 'kvmarm-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.9, part #1

- Ensure perf events programmed to count during guest execu

Merge tag 'kvmarm-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.9, part #1

- Ensure perf events programmed to count during guest execution
are actually enabled before entering the guest in the nVHE
configuration.

- Restore out-of-range handler for stage-2 translation faults.

- Several fixes to stage-2 TLB invalidations to avoid stale
translations, possibly including partial walk caches.

- Fix early handling of architectural VHE-only systems to ensure E2H is
appropriately set.

- Correct a format specifier warning in the arch_timer selftest.

- Make the KVM banner message correctly handle all of the possible
configurations.

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# 36a1818f 25-Mar-2024 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Backmerging to get drm-misc-fixes to the state of v6.9-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# 1d35aae7 21-Mar-2024 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

- Generate a list of built DTB files (arch/*/boot/dts/dtbs

Merge tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

- Generate a list of built DTB files (arch/*/boot/dts/dtbs-list)

- Use more threads when building Debian packages in parallel

- Fix warnings shown during the RPM kernel package uninstallation

- Change OBJECT_FILES_NON_STANDARD_*.o etc. to take a relative path to
Makefile

- Support GCC's -fmin-function-alignment flag

- Fix a null pointer dereference bug in modpost

- Add the DTB support to the RPM package

- Various fixes and cleanups in Kconfig

* tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (67 commits)
kconfig: tests: test dependency after shuffling choices
kconfig: tests: add a test for randconfig with dependent choices
kconfig: tests: support KCONFIG_SEED for the randconfig runner
kbuild: rpm-pkg: add dtb files in kernel rpm
kconfig: remove unneeded menu_is_visible() call in conf_write_defconfig()
kconfig: check prompt for choice while parsing
kconfig: lxdialog: remove unused dialog colors
kconfig: lxdialog: fix button color for blackbg theme
modpost: fix null pointer dereference
kbuild: remove GCC's default -Wpacked-bitfield-compat flag
kbuild: unexport abs_srctree and abs_objtree
kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1
kconfig: remove named choice support
kconfig: use linked list in get_symbol_str() to iterate over menus
kconfig: link menus to a symbol
kbuild: fix inconsistent indentation in top Makefile
kbuild: Use -fmin-function-alignment when available
alpha: merge two entries for CONFIG_ALPHA_GAMMA
alpha: merge two entries for CONFIG_ALPHA_EV4
kbuild: change DTC_FLAGS_<basetarget>.o to take the path relative to $(obj)
...

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