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  1. Nov 02, 2021
  3. Nov 01, 2021
    • Bixuan Cui's avatar
      RISC-V: KVM: fix boolreturn.cocci warnings · bbd5ba8d
      Bixuan Cui authored 
      

Fix boolreturn.cocci warnings:
./arch/riscv/kvm/mmu.c:603:9-10: WARNING: return of 0/1 in function
'kvm_age_gfn' with return type bool
./arch/riscv/kvm/mmu.c:582:9-10: WARNING: return of 0/1 in function
'kvm_set_spte_gfn' with return type bool
./arch/riscv/kvm/mmu.c:621:9-10: WARNING: return of 0/1 in function
'kvm_test_age_gfn' with return type bool
./arch/riscv/kvm/mmu.c:568:9-10: WARNING: return of 0/1 in function
'kvm_unmap_gfn_range' with return type bool

Signed-off-by: default avatarBixuan Cui <cuibixuan@linux.alibaba.com>
Signed-off-by: default avatarAnup Patel <anup.patel@wdc.com>
      bbd5ba8d
    • ran jianping's avatar
      RISC-V: KVM: remove unneeded semicolon · 7b161d9c
      ran jianping authored 
      

 Elimate the following coccinelle check warning:
 ./arch/riscv/kvm/vcpu_sbi.c:169:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_exit.c:397:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_exit.c:687:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_exit.c:645:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu.c:247:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu.c:284:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_timer.c:123:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_timer.c:170:2-3: Unneeded semicolon

Reported-by: default avatarZeal Robot <zealci@zte.com.cn>
Signed-off-by: default avatarran jianping <ran.jianping@zte.com.cn>
Signed-off-by: default avatarAnup Patel <anup.patel@wdc.com>
      7b161d9c
  5. Oct 31, 2021
    • Paolo Bonzini's avatar
      Merge tag 'kvm-s390-next-5.16-1' of... · 9c6eb531
      Paolo Bonzini authored 
      Merge tag 'kvm-s390-next-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

KVM: s390: Fixes and Features for 5.16

- SIGP Fixes
- initial preparations for lazy destroy of secure VMs
- storage key improvements/fixes
- Log the guest CPNC
      9c6eb531
    • Anup Patel's avatar
      RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions · 7c8de080
      Anup Patel authored 
      The parameter passed to HFENCE.GVMA instruction in rs1 register
is guest physical address right shifted by 2 (i.e. divided by 4).

Unfortunately, we overlooked the semantics of rs1 registers for
HFENCE.GVMA instruction and never right shifted guest physical
address by 2. This issue did not manifest for hypervisors till
now because:
  1) Currently, only __kvm_riscv_hfence_gvma_all() and SBI
     HFENCE calls are used to invalidate TLB.
  2) All H-extension implementations (such as QEMU, Spike,
     Rocket Core FPGA, etc) that we tried till now were
     conservatively flushing everything upon any HFENCE.GVMA
     instruction.

This patch fixes GPA passed to __kvm_riscv_hfence_gvma_vmid_gpa()
and __kvm_riscv_hfence_gvma_gpa() functions.

Fixes: fd7bb4a2

 ("RISC-V: KVM: Implement VMID allocator")
Reported-by: default avatarIan Huang <ihuang@ventanamicro.com>
Signed-off-by: default avatarAnup Patel <anup.patel@wdc.com>
Message-Id: <20211026170136.2147619-4-anup.patel@wdc.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      7c8de080
    • Anup Patel's avatar
      RISC-V: KVM: Factor-out FP virtualization into separate sources · 0a86512d
      Anup Patel authored 
      

The timer and SBI virtualization is already in separate sources.
In future, we will have vector and AIA virtualization also added
as separate sources.

To align with above described modularity, we factor-out FP
virtualization into separate sources.

Signed-off-by: default avatarAnup Patel <anup.patel@wdc.com>
Message-Id: <20211026170136.2147619-3-anup.patel@wdc.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      0a86512d
    • Paolo Bonzini's avatar
      Merge tag 'kvmarm-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD · 4e338684
      Paolo Bonzini authored 
      KVM/arm64 updates for Linux 5.16

- More progress on the protected VM front, now with the full
  fixed feature set as well as the limitation of some hypercalls
  after initialisation.

- Cleanup of the RAZ/WI sysreg handling, which was pointlessly
  complicated

- Fixes for the vgic placement in the IPA space, together with a
  bunch of selftests

- More memcg accounting of the memory allocated on behalf of a guest

- Timer and vgic selftests

- Workarounds for the Apple M1 broken vgic implementation

- KConfig cleanups

- New kvmarm.mode=none option, for those who really dislike us
      4e338684
  7. Oct 27, 2021
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