summaryrefslogtreecommitdiff
path: root/include/uapi
diff options
context:
space:
mode:
authorAnup Patel <anup.patel@wdc.com>2021-11-26 17:05:51 +0530
committerAnup Patel <anup@brainfault.org>2022-01-06 15:16:58 +0530
commita457fd5660efa9cf960d2461156a1025bfdb13fa (patch)
tree74381143d7ad54e9dd3238f35cc79257070a355d /include/uapi
parentef8949a986f0e325b1d535389101541849d611d3 (diff)
RISC-V: KVM: Add VM capability to allow userspace get GPA bits
The number of GPA bits supported for a RISC-V Guest/VM is based on the MMU mode used by the G-stage translation. The KVM RISC-V will detect and use the best possible MMU mode for the G-stage in kvm_arch_init(). We add a generic VM capability KVM_CAP_VM_GPA_BITS which can be used by the KVM userspace to get the number of GPA (guest physical address) bits supported for a Guest/VM. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-and-tested-by: Atish Patra <atishp@rivosinc.com>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/kvm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 1daa45268de2..469f05d69c8d 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1131,6 +1131,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
#define KVM_CAP_ARM_MTE 205
#define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
+#define KVM_CAP_VM_GPA_BITS 207
#ifdef KVM_CAP_IRQ_ROUTING