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| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-03-09 11:48:35 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-03-09 11:48:35 -0500 |
| commit | 7d8942d8e73843de35b3737b8be50f8fef6796bb (patch) | |
| tree | 593e26864092f6829b25a1847cb5e2172ae7de53 /arch/riscv/mm/tlbflush.c | |
| parent | 0cbca1bf44a0b8666c91ce3438f235c6fe70fbf1 (diff) | |
| parent | 2dfd2383034421101300a3b7325cf339a182d218 (diff) | |
Merge tag 'kvm-x86-guest_memfd_fixes-6.8' of https://github.com/kvm-x86/linux into HEAD
KVM GUEST_MEMFD fixes for 6.8:
- Make KVM_MEM_GUEST_MEMFD mutually exclusive with KVM_MEM_READONLY to
avoid creating ABI that KVM can't sanely support.
- Update documentation for KVM_SW_PROTECTED_VM to make it abundantly
clear that such VMs are purely a development and testing vehicle, and
come with zero guarantees.
- Limit KVM_SW_PROTECTED_VM guests to the TDP MMU, as the long term plan
is to support confidential VMs with deterministic private memory (SNP
and TDX) only in the TDP MMU.
- Fix a bug in a GUEST_MEMFD negative test that resulted in false passes
when verifying that KVM_MEM_GUEST_MEMFD memslots can't be dirty logged.
Diffstat (limited to 'arch/riscv/mm/tlbflush.c')
| -rw-r--r-- | arch/riscv/mm/tlbflush.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/mm/tlbflush.c b/arch/riscv/mm/tlbflush.c index 9619965f6501..893566e004b7 100644 --- a/arch/riscv/mm/tlbflush.c +++ b/arch/riscv/mm/tlbflush.c @@ -66,6 +66,7 @@ static inline void local_flush_tlb_range_asid(unsigned long start, local_flush_tlb_range_threshold_asid(start, size, stride, asid); } +/* Flush a range of kernel pages without broadcasting */ void local_flush_tlb_kernel_range(unsigned long start, unsigned long end) { local_flush_tlb_range_asid(start, end - start, PAGE_SIZE, FLUSH_TLB_NO_ASID); @@ -233,4 +234,5 @@ void arch_tlbbatch_flush(struct arch_tlbflush_unmap_batch *batch) { __flush_tlb_range(&batch->cpumask, FLUSH_TLB_NO_ASID, 0, FLUSH_TLB_MAX_SIZE, PAGE_SIZE); + cpumask_clear(&batch->cpumask); } |