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| author |  Sean Christopherson <seanjc@google.com>
| 2022-08-30 15:37:08 +0200 |
|---|---|---|
| committer |  Paolo Bonzini <pbonzini@redhat.com>
| 2022-09-26 12:02:38 -0400 |
| commit | 1cac8d9f6bd25df3713103e44e2d9ca0c2e03c33 (patch) | |
| tree | 1484b38a98d17ba076c2ac413a4a411cd961f9e6 /arch/x86/kvm/hyperv.h | |
| parent | KVM: x86: Zero out entire Hyper-V CPUID cache before processing entries (diff) | |
| download | linux-1cac8d9f6bd25df3713103e44e2d9ca0c2e03c33.tar.gz linux-1cac8d9f6bd25df3713103e44e2d9ca0c2e03c33.tar.bz2 linux-1cac8d9f6bd25df3713103e44e2d9ca0c2e03c33.zip | |
KVM: x86: Check for existing Hyper-V vCPU in kvm_hv_vcpu_init()
When potentially allocating/initializing the Hyper-V vCPU struct, check
for an existing instance in kvm_hv_vcpu_init() instead of requiring
callers to perform the check. Relying on callers to do the check is
risky as it's all too easy for KVM to overwrite vcpu->arch.hyperv and
leak memory, and it adds additional burden on callers without much
benefit.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/20220830133737.1539624-5-vkuznets@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/hyperv.h')
0 files changed, 0 insertions, 0 deletions