diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-05-29 13:11:16 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2018-05-31 18:00:55 +0100 |
| commit | 55e3748e8902ff641e334226bdcb432f9a5d78d3 (patch) | |
| tree | 958684771ff102d79d40080b685d6db6af6e272e /arch/arm64/include/asm/kvm_host.h | |
| parent | 85478bab409171de501b719971fd25a3d5d639f9 (diff) | |
arm64: KVM: Add ARCH_WORKAROUND_2 support for guests
In order to offer ARCH_WORKAROUND_2 support to guests, we need
a bit of infrastructure.
Let's add a flag indicating whether or not the guest uses
SSBD mitigation. Depending on the state of this flag, allow
KVM to disable ARCH_WORKAROUND_2 before entering the guest,
and enable it when exiting it.
Reviewed-by: Christoffer Dall <christoffer.dall@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/kvm_host.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 469de8acd06f..9bef3f69bdcd 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -216,6 +216,9 @@ struct kvm_vcpu_arch { /* Exception Information */ struct kvm_vcpu_fault_info fault; + /* State of various workarounds, see kvm_asm.h for bit assignment */ + u64 workaround_flags; + /* Guest debug state */ u64 debug_flags; |