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From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org,
kvm@vger.kernel.org
Cc: roy.hopkins@suse.com,
seanjc@google.com,
thomas.lendacky@amd.com,
ashish.kalra@amd.com,
michael.roth@amd.com,
jroedel@suse.de,
nsaenz@amazon.com,
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James.Bottomley@HansenPartnership.com
Subject: [PATCH 02/29] KVM: API definitions for plane userspace exit
Date: Tue, 1 Apr 2025 18:10:39 +0200
Message-ID: <20250401161106.790710-3-pbonzini@redhat.com>
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Copy over the uapi definitions from the Documentation/ directory.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/uapi/linux/kvm.h | 25 +++++++++++++++++++++++--
1 file changed, 23 insertions(+), 2 deletions(-)
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 1e0a511c43d0..b0cca93ebcb3 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -135,6 +135,16 @@ struct kvm_xen_exit {
} u;
};
=20
+struct kvm_plane_event_exit {
+#define KVM_PLANE_EVENT_INTERRUPT 1
+ __u16 cause;
+ __u16 pending_event_planes;
+ __u16 target;
+ __u16 padding;
+ __u32 flags;
+ __u64 extra[8];
+};
+
struct kvm_tdx_exit {
#define KVM_EXIT_TDX_VMCALL 1
__u32 type;
@@ -262,7 +272,8 @@ struct kvm_tdx_exit {
#define KVM_EXIT_NOTIFY 37
#define KVM_EXIT_LOONGARCH_IOCSR 38
#define KVM_EXIT_MEMORY_FAULT 39
-#define KVM_EXIT_TDX 40
+#define KVM_EXIT_PLANE_EVENT 40
+#define KVM_EXIT_TDX 41
=20
/* For KVM_EXIT_INTERNAL_ERROR */
/* Emulate instruction failed. */
@@ -295,7 +306,13 @@ struct kvm_run {
/* in */
__u8 request_interrupt_window;
__u8 HINT_UNSAFE_IN_KVM(immediate_exit);
- __u8 padding1[6];
+
+ /* in/out */
+ __u8 plane;
+ __u16 suspended_planes;
+
+ /* in */
+ __u16 req_exit_planes;
=20
/* out */
__u32 exit_reason;
@@ -532,6 +549,8 @@ struct kvm_run {
__u64 gpa;
__u64 size;
} memory_fault;
+ /* KVM_EXIT_PLANE_EVENT */
+ struct kvm_plane_event_exit plane_event;
/* KVM_EXIT_TDX */
struct kvm_tdx_exit tdx;
/* Fix the size of the union. */
@@ -1017,6 +1036,8 @@ struct kvm_enable_cap {
#define KVM_CAP_PRE_FAULT_MEMORY 236
#define KVM_CAP_X86_APIC_BUS_CYCLES_NS 237
#define KVM_CAP_X86_GUEST_MODE 238
+#define KVM_CAP_PLANES 239
+#define KVM_CAP_PLANES_FPU 240
=20
struct kvm_irq_routing_irqchip {
__u32 irqchip;
--=20
2.49.0