Revision tags: v6.11, v6.11-rc7, v6.11-rc6, v6.11-rc5, v6.11-rc4 |
|
#
ed7171ff |
| 16-Aug-2024 |
Lucas De Marchi <lucas.demarchi@intel.com> |
Merge drm/drm-next into drm-xe-next
Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for the display side. This resolves the current conflict for the enable_display module parameter
Merge drm/drm-next into drm-xe-next
Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for the display side. This resolves the current conflict for the enable_display module parameter and allows further pending refactors.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
show more ...
|
#
5c61f598 |
| 12-Aug-2024 |
Thomas Zimmermann <tzimmermann@suse.de> |
Merge drm/drm-next into drm-misc-next
Get drm-misc-next to the state of v6.11-rc2.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
|
Revision tags: v6.11-rc3, v6.11-rc2 |
|
#
3663e2c4 |
| 01-Aug-2024 |
Jani Nikula <jani.nikula@intel.com> |
Merge drm/drm-next into drm-intel-next
Sync with v6.11-rc1 in general, and specifically get the new BACKLIGHT_POWER_ constants for power states.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
#
4436e6da |
| 02-Aug-2024 |
Thomas Gleixner <tglx@linutronix.de> |
Merge branch 'linus' into x86/mm
Bring x86 and selftests up to date
|
#
a1ff5a7d |
| 30-Jul-2024 |
Maxime Ripard <mripard@kernel.org> |
Merge drm/drm-fixes into drm-misc-fixes
Let's start the new drm-misc-fixes cycle by bringing in 6.11-rc1.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
|
Revision tags: v6.11-rc1 |
|
#
2c9b3512 |
| 20-Jul-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini: "ARM:
- Initial infrastructure for shadow stage-2 MMUs, as part of nested virtualiza
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini: "ARM:
- Initial infrastructure for shadow stage-2 MMUs, as part of nested virtualization enablement
- Support for userspace changes to the guest CTR_EL0 value, enabling (in part) migration of VMs between heterogenous hardware
- Fixes + improvements to pKVM's FF-A proxy, adding support for v1.1 of the protocol
- FPSIMD/SVE support for nested, including merged trap configuration and exception routing
- New command-line parameter to control the WFx trap behavior under KVM
- Introduce kCFI hardening in the EL2 hypervisor
- Fixes + cleanups for handling presence/absence of FEAT_TCRX
- Miscellaneous fixes + documentation updates
LoongArch:
- Add paravirt steal time support
- Add support for KVM_DIRTY_LOG_INITIALLY_SET
- Add perf kvm-stat support for loongarch
RISC-V:
- Redirect AMO load/store access fault traps to guest
- perf kvm stat support
- Use guest files for IMSIC virtualization, when available
s390:
- Assortment of tiny fixes which are not time critical
x86:
- Fixes for Xen emulation
- Add a global struct to consolidate tracking of host values, e.g. EFER
- Add KVM_CAP_X86_APIC_BUS_CYCLES_NS to allow configuring the effective APIC bus frequency, because TDX
- Print the name of the APICv/AVIC inhibits in the relevant tracepoint
- Clean up KVM's handling of vendor specific emulation to consistently act on "compatible with Intel/AMD", versus checking for a specific vendor
- Drop MTRR virtualization, and instead always honor guest PAT on CPUs that support self-snoop
- Update to the newfangled Intel CPU FMS infrastructure
- Don't advertise IA32_PERF_GLOBAL_OVF_CTRL as an MSR-to-be-saved, as it reads '0' and writes from userspace are ignored
- Misc cleanups
x86 - MMU:
- Small cleanups, renames and refactoring extracted from the upcoming Intel TDX support
- Don't allocate kvm_mmu_page.shadowed_translation for shadow pages that can't hold leafs SPTEs
- Unconditionally drop mmu_lock when allocating TDP MMU page tables for eager page splitting, to avoid stalling vCPUs when splitting huge pages
- Bug the VM instead of simply warning if KVM tries to split a SPTE that is non-present or not-huge. KVM is guaranteed to end up in a broken state because the callers fully expect a valid SPTE, it's all but dangerous to let more MMU changes happen afterwards
x86 - AMD:
- Make per-CPU save_area allocations NUMA-aware
- Force sev_es_host_save_area() to be inlined to avoid calling into an instrumentable function from noinstr code
- Base support for running SEV-SNP guests. API-wise, this includes a new KVM_X86_SNP_VM type, encrypting/measure the initial image into guest memory, and finalizing it before launching it. Internally, there are some gmem/mmu hooks needed to prepare gmem-allocated pages before mapping them into guest private memory ranges
This includes basic support for attestation guest requests, enough to say that KVM supports the GHCB 2.0 specification
There is no support yet for loading into the firmware those signing keys to be used for attestation requests, and therefore no need yet for the host to provide certificate data for those keys.
To support fetching certificate data from userspace, a new KVM exit type will be needed to handle fetching the certificate from userspace.
An attempt to define a new KVM_EXIT_COCO / KVM_EXIT_COCO_REQ_CERTS exit type to handle this was introduced in v1 of this patchset, but is still being discussed by community, so for now this patchset only implements a stub version of SNP Extended Guest Requests that does not provide certificate data
x86 - Intel:
- Remove an unnecessary EPT TLB flush when enabling hardware
- Fix a series of bugs that cause KVM to fail to detect nested pending posted interrupts as valid wake eents for a vCPU executing HLT in L2 (with HLT-exiting disable by L1)
- KVM: x86: Suppress MMIO that is triggered during task switch emulation
Explicitly suppress userspace emulated MMIO exits that are triggered when emulating a task switch as KVM doesn't support userspace MMIO during complex (multi-step) emulation
Silently ignoring the exit request can result in the WARN_ON_ONCE(vcpu->mmio_needed) firing if KVM exits to userspace for some other reason prior to purging mmio_needed
See commit 0dc902267cb3 ("KVM: x86: Suppress pending MMIO write exits if emulator detects exception") for more details on KVM's limitations with respect to emulated MMIO during complex emulator flows
Generic:
- Rename the AS_UNMOVABLE flag that was introduced for KVM to AS_INACCESSIBLE, because the special casing needed by these pages is not due to just unmovability (and in fact they are only unmovable because the CPU cannot access them)
- New ioctl to populate the KVM page tables in advance, which is useful to mitigate KVM page faults during guest boot or after live migration. The code will also be used by TDX, but (probably) not through the ioctl
- Enable halt poll shrinking by default, as Intel found it to be a clear win
- Setup empty IRQ routing when creating a VM to avoid having to synchronize SRCU when creating a split IRQCHIP on x86
- Rework the sched_in/out() paths to replace kvm_arch_sched_in() with a flag that arch code can use for hooking both sched_in() and sched_out()
- Take the vCPU @id as an "unsigned long" instead of "u32" to avoid truncating a bogus value from userspace, e.g. to help userspace detect bugs
- Mark a vCPU as preempted if and only if it's scheduled out while in the KVM_RUN loop, e.g. to avoid marking it preempted and thus writing guest memory when retrieving guest state during live migration blackout
Selftests:
- Remove dead code in the memslot modification stress test
- Treat "branch instructions retired" as supported on all AMD Family 17h+ CPUs
- Print the guest pseudo-RNG seed only when it changes, to avoid spamming the log for tests that create lots of VMs
- Make the PMU counters test less flaky when counting LLC cache misses by doing CLFLUSH{OPT} in every loop iteration"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits) crypto: ccp: Add the SNP_VLEK_LOAD command KVM: x86/pmu: Add kvm_pmu_call() to simplify static calls of kvm_pmu_ops KVM: x86: Introduce kvm_x86_call() to simplify static calls of kvm_x86_ops KVM: x86: Replace static_call_cond() with static_call() KVM: SEV: Provide support for SNP_EXTENDED_GUEST_REQUEST NAE event x86/sev: Move sev_guest.h into common SEV header KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event KVM: x86: Suppress MMIO that is triggered during task switch emulation KVM: x86/mmu: Clean up make_huge_page_split_spte() definition and intro KVM: x86/mmu: Bug the VM if KVM tries to split a !hugepage SPTE KVM: selftests: x86: Add test for KVM_PRE_FAULT_MEMORY KVM: x86: Implement kvm_arch_vcpu_pre_fault_memory() KVM: x86/mmu: Make kvm_mmu_do_page_fault() return mapped level KVM: x86/mmu: Account pf_{fixed,emulate,spurious} in callers of "do page fault" KVM: x86/mmu: Bump pf_taken stat only in the "real" page fault handler KVM: Add KVM_PRE_FAULT_MEMORY vcpu ioctl to pre-populate guest memory KVM: Document KVM_PRE_FAULT_MEMORY ioctl mm, virt: merge AS_UNMOVABLE and AS_INACCESSIBLE perf kvm: Add kvm-stat for loongarch64 LoongArch: KVM: Add PV steal time support in guest side ...
show more ...
|
#
5dcc1e76 |
| 16-Jul-2024 |
Paolo Bonzini <pbonzini@redhat.com> |
Merge tag 'kvm-x86-misc-6.11' of https://github.com/kvm-x86/linux into HEAD
KVM x86 misc changes for 6.11
- Add a global struct to consolidate tracking of host values, e.g. EFER, and move "shad
Merge tag 'kvm-x86-misc-6.11' of https://github.com/kvm-x86/linux into HEAD
KVM x86 misc changes for 6.11
- Add a global struct to consolidate tracking of host values, e.g. EFER, and move "shadow_phys_bits" into the structure as "maxphyaddr".
- Add KVM_CAP_X86_APIC_BUS_CYCLES_NS to allow configuring the effective APIC bus frequency, because TDX.
- Print the name of the APICv/AVIC inhibits in the relevant tracepoint.
- Clean up KVM's handling of vendor specific emulation to consistently act on "compatible with Intel/AMD", versus checking for a specific vendor.
- Misc cleanups
show more ...
|
Revision tags: v6.10, v6.10-rc7, v6.10-rc6, v6.10-rc5, v6.10-rc4, v6.10-rc3, v6.10-rc2, v6.10-rc1, v6.9, v6.9-rc7, v6.9-rc6, v6.9-rc5, v6.9-rc4, v6.9-rc3 |
|
#
bdaff4f9 |
| 06-Apr-2024 |
Sean Christopherson <seanjc@google.com> |
KVM: x86: Open code vendor_intel() in string_registers_quirk()
Open code the is_guest_vendor_intel() check in string_registers_quirk() to discourage makiking exact vendor==Intel checks in the emulat
KVM: x86: Open code vendor_intel() in string_registers_quirk()
Open code the is_guest_vendor_intel() check in string_registers_quirk() to discourage makiking exact vendor==Intel checks in the emulator, and to remove the rather awful #ifdeffery.
The string quirk is literally the only Intel specific, *non-architectural* behavior that KVM emulates. All Intel specific behavior that is architecturally defined applies to all vendors that are compatible with Intel's architecture, i.e. should use guest_cpuid_is_intel_compatible().
Link: https://lore.kernel.org/r/20240405235603.1173076-10-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
show more ...
|
#
4067c239 |
| 06-Apr-2024 |
Sean Christopherson <seanjc@google.com> |
KVM: x86: Allow SYSENTER in Compatibility Mode for all Intel compat vCPUs
Emulate SYSENTER in Compatibility Mode for all vCPUs models that are compatible with Intel's architecture, as the behavior i
KVM: x86: Allow SYSENTER in Compatibility Mode for all Intel compat vCPUs
Emulate SYSENTER in Compatibility Mode for all vCPUs models that are compatible with Intel's architecture, as the behavior if SYSENTER is architecturally defined in Intel's SDM, i.e. should be followed by any CPU that implements Intel's architecture.
Link: https://lore.kernel.org/r/20240405235603.1173076-9-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
show more ...
|
#
d99e4cb2 |
| 06-Apr-2024 |
Sean Christopherson <seanjc@google.com> |
KVM: x86: Use "is Intel compatible" helper to emulate SYSCALL in !64-bit
Use guest_cpuid_is_intel_compatible() to determine whether SYSCALL in 32-bit Protected Mode (including Compatibility Mode) sh
KVM: x86: Use "is Intel compatible" helper to emulate SYSCALL in !64-bit
Use guest_cpuid_is_intel_compatible() to determine whether SYSCALL in 32-bit Protected Mode (including Compatibility Mode) should #UD or succeed. The existing code already does the exact equivalent of guest_cpuid_is_intel_compatible(), just in a rather roundabout way.
No functional change intended.
Link: https://lore.kernel.org/r/20240405235603.1173076-7-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
show more ...
|
#
a23e1966 |
| 15-Jul-2024 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.11 merge window.
|
#
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.
|
#
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>
|
#
208c6772 |
| 16-Jul-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'x86_alternatives_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 alternatives updates from Borislav Petkov: "This is basically PeterZ's idea to nest the
Merge tag 'x86_alternatives_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 alternatives updates from Borislav Petkov: "This is basically PeterZ's idea to nest the alternative macros to avoid the need to "spell out" the number of alternates in an ALTERNATIVE_n() macro and thus have an ever-increasing complexity in those definitions.
For ease of bisection, the old macros are converted to the new, nested variants in a step-by-step manner so that in case an issue is encountered during testing, one can pinpoint the place where it fails easier.
Because debugging alternatives is a serious pain"
* tag 'x86_alternatives_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/alternatives, kvm: Fix a couple of CALLs without a frame pointer x86/alternative: Replace the old macros x86/alternative: Convert the asm ALTERNATIVE_3() macro x86/alternative: Convert the asm ALTERNATIVE_2() macro x86/alternative: Convert the asm ALTERNATIVE() macro x86/alternative: Convert ALTERNATIVE_3() x86/alternative: Convert ALTERNATIVE_TERNARY() x86/alternative: Convert alternative_call_2() x86/alternative: Convert alternative_call() x86/alternative: Convert alternative_io() x86/alternative: Convert alternative_input() x86/alternative: Convert alternative_2() x86/alternative: Convert alternative() x86/alternatives: Add nested alternatives macros x86/alternative: Zap alternative_ternary()
show more ...
|
#
0d3db1f1 |
| 18-Jun-2024 |
Borislav Petkov (AMD) <bp@alien8.de> |
x86/alternatives, kvm: Fix a couple of CALLs without a frame pointer
objtool complains:
arch/x86/kvm/kvm.o: warning: objtool: .altinstr_replacement+0xc5: call without frame pointer save/setup v
x86/alternatives, kvm: Fix a couple of CALLs without a frame pointer
objtool complains:
arch/x86/kvm/kvm.o: warning: objtool: .altinstr_replacement+0xc5: call without frame pointer save/setup vmlinux.o: warning: objtool: .altinstr_replacement+0x2eb: call without frame pointer save/setup
Make sure %rSP is an output operand to the respective asm() statements.
The test_cc() hunk and ALT_OUTPUT_SP() courtesy of peterz. Also from him add some helpful debugging info to the documentation.
Now on to the explanations:
tl;dr: The alternatives macros are pretty fragile.
If I do ALT_OUTPUT_SP(output) in order to be able to package in a %rsp reference for objtool so that a stack frame gets properly generated, the inline asm input operand with positional argument 0 in clear_page():
"0" (page)
gets "renumbered" due to the added
: "+r" (current_stack_pointer), "=D" (page)
and then gcc says:
./arch/x86/include/asm/page_64.h:53:9: error: inconsistent operand constraints in an ‘asm’
The fix is to use an explicit "D" constraint which points to a singleton register class (gcc terminology) which ends up doing what is expected here: the page pointer - input and output - should be in the same %rdi register.
Other register classes have more than one register in them - example: "r" and "=r" or "A":
‘A’ The ‘a’ and ‘d’ registers. This class is used for instructions that return double word results in the ‘ax:dx’ register pair. Single word values will be allocated either in ‘ax’ or ‘dx’.
so using "D" and "=D" just works in this particular case.
And yes, one would say, sure, why don't you do "+D" but then:
: "+r" (current_stack_pointer), "+D" (page) : [old] "i" (clear_page_orig), [new1] "i" (clear_page_rep), [new2] "i" (clear_page_erms), : "cc", "memory", "rax", "rcx")
now find the Waldo^Wcomma which throws a wrench into all this.
Because that silly macro has an "input..." consume-all last macro arg and in it, one is supposed to supply input *and* clobbers, leading to silly syntax snafus.
Yap, they need to be cleaned up, one fine day...
Closes: https://lore.kernel.org/oe-kbuild-all/202406141648.jO9qNGLa-lkp@intel.com/ Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Acked-by: Sean Christopherson <seanjc@google.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20240625112056.GDZnqoGDXgYuWBDUwu@fat_crate.local
show more ...
|
#
594ce0b8 |
| 10-Jun-2024 |
Russell King (Oracle) <rmk+kernel@armlinux.org.uk> |
Merge topic branches 'clkdev' and 'fixes' into for-linus
|
Revision tags: v6.9-rc2, v6.9-rc1 |
|
#
b228ab57 |
| 18-Mar-2024 |
Andrew Morton <akpm@linux-foundation.org> |
Merge branch 'master' into mm-stable
|
#
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>
show more ...
|
#
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>
show more ...
|
#
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>
|
#
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>
|