1. 11 Nov, 2021 4 commits
    • Peter Gonda's avatar
      KVM: SEV: Add support for SEV intra host migration · b5663931
      Peter Gonda authored
      For SEV to work with intra host migration, contents of the SEV info struct
      such as the ASID (used to index the encryption key in the AMD SP) and
      the list of memory regions need to be transferred to the target VM.
      This change adds a commands for a target VMM to get a source SEV VM's sev
      info.
      Signed-off-by: default avatarPeter Gonda <pgonda@google.com>
      Suggested-by: default avatarSean Christopherson <seanjc@google.com>
      Reviewed-by: default avatarMarc Orr <marcorr@google.com>
      Cc: Marc Orr <marcorr@google.com>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
      Cc: Brijesh Singh <brijesh.singh@amd.com>
      Cc: Tom Lendacky <thomas.lendacky@amd.com>
      Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
      Cc: Wanpeng Li <wanpengli@tencent.com>
      Cc: Jim Mattson <jmattson@google.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: kvm@vger.kernel.org
      Cc: linux-kernel@vger.kernel.org
      Message-Id: <20211021174303.385706-3-pgonda@google.com>
      Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      b5663931
    • Paolo Bonzini's avatar
      KVM: SEV: provide helpers to charge/uncharge misc_cg · 91b692a0
      Paolo Bonzini authored
      Avoid code duplication across all callers of misc_cg_try_charge and
      misc_cg_uncharge.  The resource type for KVM is always derived from
      sev->es_active, and the quantity is always 1.
      Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      91b692a0
    • Paolo Bonzini's avatar
      KVM: generalize "bugged" VM to "dead" VM · f4d31653
      Paolo Bonzini authored
      Generalize KVM_REQ_VM_BUGGED so that it can be called even in cases
      where it is by design that the VM cannot be operated upon.  In this
      case any KVM_BUG_ON should still warn, so introduce a new flag
      kvm->vm_dead that is separate from kvm->vm_bugged.
      Suggested-by: default avatarSean Christopherson <seanjc@google.com>
      Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      f4d31653
    • Peter Gonda's avatar
      KVM: SEV: Refactor out sev_es_state struct · b67a4cc3
      Peter Gonda authored
      Move SEV-ES vCPU metadata into new sev_es_state struct from vcpu_svm.
      Signed-off-by: default avatarPeter Gonda <pgonda@google.com>
      Suggested-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
      Acked-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
      Reviewed-by: default avatarSean Christopherson <seanjc@google.com>
      Cc: Marc Orr <marcorr@google.com>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
      Cc: Brijesh Singh <brijesh.singh@amd.com>
      Cc: Tom Lendacky <thomas.lendacky@amd.com>
      Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
      Cc: Wanpeng Li <wanpengli@tencent.com>
      Cc: Jim Mattson <jmattson@google.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: kvm@vger.kernel.org
      Cc: linux-kernel@vger.kernel.org
      Message-Id: <20211021174303.385706-2-pgonda@google.com>
      Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      b67a4cc3
  2. 02 Nov, 2021 1 commit
  3. 01 Nov, 2021 2 commits
    • 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
  4. 31 Oct, 2021 4 commits
    • 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
  5. 27 Oct, 2021 3 commits
  6. 25 Oct, 2021 20 commits
  7. 22 Oct, 2021 6 commits