To be replaced by a proper update once the API is merged upstream.
Signed-off-by: Richard Henderson <[email protected]>
---
linux-headers/asm-arm64/kvm.h | 33 +++++++++++++++++++++++++++++++++
linux-headers/linux/kvm.h | 1 +
2 files changed, 34 insertions(+)
diff --git a/linux-headers/asm-arm64/kvm.h b/linux-headers/asm-arm64/kvm.h
index 46ffbddab5..bbfc4781ca 100644
--- a/linux-headers/asm-arm64/kvm.h
+++ b/linux-headers/asm-arm64/kvm.h
@@ -106,6 +106,13 @@ struct kvm_regs {
#define KVM_ARM_VCPU_PTRAUTH_GENERIC 6 /* VCPU uses generic authentication */
#define KVM_ARM_VCPU_HAS_EL2 7 /* Support nested virtualization */
#define KVM_ARM_VCPU_HAS_EL2_E2H0 8 /* Limit NV support to E2H RES0 */
+#define KVM_ARM_VCPU_SME 9 /* enable SME for this CPU */
+
+/*
+ * An alias for _SVE since we finalize VL configuration for both SVE and SME
+ * simultaneously.
+ */
+#define KVM_ARM_VCPU_VEC KVM_ARM_VCPU_SVE
struct kvm_vcpu_init {
__u32 target;
@@ -348,6 +355,32 @@ struct kvm_arm_counter_offset {
#define KVM_ARM64_SVE_VLS_WORDS \
((KVM_ARM64_SVE_VQ_MAX - KVM_ARM64_SVE_VQ_MIN) / 64 + 1)
+/* SME registers */
+#define KVM_REG_ARM64_SME (0x17 << KVM_REG_ARM_COPROC_SHIFT)
+
+#define KVM_ARM64_SME_VQ_MIN __SVE_VQ_MIN
+#define KVM_ARM64_SME_VQ_MAX __SVE_VQ_MAX
+
+/* ZA and ZTn occupy blocks at the following offsets within this range: */
+#define KVM_REG_ARM64_SME_ZA_BASE 0
+#define KVM_REG_ARM64_SME_ZT_BASE 0x600
+
+#define KVM_ARM64_SME_MAX_ZAHREG (__SVE_VQ_BYTES * KVM_ARM64_SME_VQ_MAX)
+
+#define KVM_REG_ARM64_SME_ZAHREG(n, i) \
+ (KVM_REG_ARM64 | KVM_REG_ARM64_SME | KVM_REG_ARM64_SME_ZA_BASE | \
+ KVM_REG_SIZE_U2048 | \
+ (((n) & (KVM_ARM64_SME_MAX_ZAHREG - 1)) << 5) | \
+ ((i) & (KVM_ARM64_SVE_MAX_SLICES - 1)))
+
+#define KVM_REG_ARM64_SME_ZTREG_SIZE (512 / 8)
+
+/* Vector lengths pseudo-register: */
+#define KVM_REG_ARM64_SME_VLS (KVM_REG_ARM64 | KVM_REG_ARM64_SME | \
+ KVM_REG_SIZE_U512 | 0xfffe)
+#define KVM_ARM64_SME_VLS_WORDS \
+ ((KVM_ARM64_SVE_VQ_MAX - KVM_ARM64_SVE_VQ_MIN) / 64 + 1)
+
/* Bitmap feature firmware registers */
#define KVM_REG_ARM_FW_FEAT_BMAP (0x0016 <<
KVM_REG_ARM_COPROC_SHIFT)
#define KVM_REG_ARM_FW_FEAT_BMAP_REG(r) (KVM_REG_ARM64 |
KVM_REG_SIZE_U64 | \
diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index a4ab42dcba..d8fd57d681 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -966,6 +966,7 @@ struct kvm_enable_cap {
#define KVM_CAP_GUEST_MEMFD_FLAGS 244
#define KVM_CAP_ARM_SEA_TO_USER 245
#define KVM_CAP_S390_USER_OPEREXEC 246
+#define KVM_CAP_ARM_SME 247
struct kvm_irq_routing_irqchip {
__u32 irqchip;
--
2.43.0
