diff options
| author | Fuad Tabba <tabba@google.com> | 2021-10-10 15:56:33 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-10-11 14:57:29 +0100 |
| commit | 2a0c343386ae1a6826e1b9d751bfc14f4711c2de (patch) | |
| tree | 83c441a60b73d2dab6a0bb865b28c8766d6e2aef /arch/arm64/include/asm/kvm_asm.h | |
| parent | 6c30bfb18d0b7d09593f204c936493cfcd153956 (diff) | |
KVM: arm64: Initialize trap registers for protected VMs
Protected VMs have more restricted features that need to be
trapped. Moreover, the host should not be trusted to set the
appropriate trapping registers and their values.
Initialize the trapping registers, i.e., hcr_el2, mdcr_el2, and
cptr_el2 at EL2 for protected guests, based on the values of the
guest's feature id registers.
No functional change intended as trap handlers introduced in the
previous patch are still not hooked in to the guest exit
handlers.
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-9-tabba@google.com
Diffstat (limited to 'arch/arm64/include/asm/kvm_asm.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_asm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h index e86045ac43ba..a460e1243cef 100644 --- a/arch/arm64/include/asm/kvm_asm.h +++ b/arch/arm64/include/asm/kvm_asm.h @@ -64,6 +64,7 @@ #define __KVM_HOST_SMCCC_FUNC___pkvm_cpu_set_vector 18 #define __KVM_HOST_SMCCC_FUNC___pkvm_prot_finalize 19 #define __KVM_HOST_SMCCC_FUNC___kvm_adjust_pc 20 +#define __KVM_HOST_SMCCC_FUNC___pkvm_vcpu_init_traps 21 #ifndef __ASSEMBLY__ |