From: Sriram Nambakam <snambakam@linux.microsoft.com>
To: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [RFC PATCH v1 23/42] kvm: x86: fix merged plane API/stat build regressions
Date: Wed, 5 Aug 2026 04:03:05 -0700 [thread overview]
Message-ID: <20260805110324.25067-24-snambakam@linux.microsoft.com> (raw)
In-Reply-To: <20260805110324.25067-1-snambakam@linux.microsoft.com>
---
include/uapi/linux/kvm.h | 23 -----------------------
1 file changed, 23 deletions(-)
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index dfc9c7dab21e..348628c7b17e 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1689,29 +1689,6 @@ struct kvm_memory_attributes {
#define KVM_MEMORY_ATTRIBUTE_NO_WRITE (1ULL << 4)
#define KVM_MEMORY_ATTRIBUTE_NO_EXEC (1ULL << 5)
-/*
- * Per-plane memory protection attributes (VM planes / VBS).
- * These control EPT R/W/X permissions enforced by the hypervisor on
- * behalf of a higher-privilege plane (e.g., plane-1 restricting plane-0).
- */
-#define KVM_MEMORY_ATTRIBUTE_NO_WRITE (1ULL << 4)
-#define KVM_MEMORY_ATTRIBUTE_NO_EXEC (1ULL << 5)
-
-/*
- * Set memory attributes on a specific plane's address space.
- * Used by a higher-privilege plane to restrict a lower-privilege plane's
- * EPT permissions (e.g., plane-1 making plane-0 kernel text read-only).
- */
-struct kvm_plane_memory_attributes {
- __u32 plane; /* target plane index */
- __u32 flags; /* must be 0 */
- __u64 address; /* GPA (page-aligned) */
- __u64 size; /* size in bytes (page-aligned) */
- __u64 attributes; /* KVM_MEMORY_ATTRIBUTE_NO_WRITE / NO_EXEC */
-};
-
-#define KVM_SET_PLANE_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd6, struct kvm_plane_memory_attributes)
-
#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
#define GUEST_MEMFD_FLAG_MMAP (1ULL << 0)
#define GUEST_MEMFD_FLAG_INIT_SHARED (1ULL << 1)
--
2.55.0
next prev parent reply other threads:[~2026-08-05 11:04 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-05 11:02 [RFC PATCH v1 00/42] VBS/VSM-on-KVM: VBS integration for KVM VM planes Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 01/42] Fix merge issue - Remove duplicate definition for kvm_arch_has_irq_bypass Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 02/42] Fix compilation Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 03/42] Fix compile error Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 04/42] Fix compile errors Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 05/42] Initial support for VM Planes - Add kernel config for CONFIG_VM_PLANES - Parse vm plane config from initrd for plane configuration - Make hypercalls to allocate memory for the vm planes Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 06/42] Use vcpu count from the plane configuration Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 07/42] skip processing plane configuration for plane 0 - plane 0 is the boot plane Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 08/42] Add plane config param to specify kernel image format Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 09/42] Activate the VM Planes through the Hypervisor - Using KVM as the VMM Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 10/42] allow the command line to be specified for kernels in other planes Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 11/42] Various changes to support VM Planes Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 12/42] Add a Virtualization Based Security (VBS) framework. - Add backends for AMD SEV-SNP, Intel TDX, Arm CCA and KVM Planes. - Support VTL on Hyper-V in addition to Planes on KVM Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 13/42] Add a inter-plane communication mechanism through KVM. - model this to use a single page similar to SEV-SNP Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 14/42] KVM: Add per-plane memory attribute support for cross-plane EPT protection Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 15/42] KVM: x86: Add KVM_HC_VBS_VTL_CALL hypercall for VBS inter-plane calls Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 16/42] vbs: Add HEKI kernel sealing and fix KVM plane memory attribute guards Sriram Nambakam
2026-08-05 11:02 ` [RFC PATCH v1 17/42] vbs: Add module authentication via VBS/HEKI Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 18/42] vbs: Add kexec validation and make module auth non-fatal Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 19/42] Merge branch 'master' into vm-planes Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 20/42] kvm: x86: fix merged plane API/stat build regressions Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 21/42] KVM: x86: exit VM planes and VBS hypercalls to userspace Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 22/42] kexec: block legacy kexec_load when VBS is active Sriram Nambakam
2026-08-05 11:03 ` Sriram Nambakam [this message]
2026-08-05 11:03 ` [RFC PATCH v1 24/42] KVM: planes: expose memory-attribute setting to in-kernel callers Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 25/42] vm_planes: drop unused per-plane vcpu_count Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 26/42] drivers/virt: add VBS secure-plane park loop Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 27/42] KVM: planes: add arch-neutral in-kernel plane switch helper Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 28/42] KVM: x86: add VBS VTL call/return and cross-plane set-mem-attrs hypercalls Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 29/42] init/vm_planes: set up planes from rootfs_initcall and load ELF payloads Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 30/42] security/vbs: run backend probe and HEKI seal at rootfs_initcall Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 31/42] security/vbs: pin the VTL call hypercall to CPU0 Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 32/42] security/vbs: add secure-plane monitor backend Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 33/42] drivers/virt: rename VBS park loop to secure_monitor Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 34/42] x86/realmode: skip the sub-1M trampoline for the VBS secure plane Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 35/42] KVM: x86: deny normal-plane access to secure-plane memory Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 36/42] KVM: plane: handle KVM_CHECK_EXTENSION on the plane fd Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 37/42] KVM: selftests: run plane tests with a split IRQ chip Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 38/42] kvm: x86: drop obsolete kvm_cache_regs.h Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 39/42] kvm: arch: finalize plane hooks and kvm_arch_vcpu_create signature Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 40/42] kvm: x86: use kvm_vcpu scheduling-state accessors and struct stat fields Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 41/42] kvm: x86: finalize per-plane APIC state and CPUID placement Sriram Nambakam
2026-08-05 11:03 ` [RFC PATCH v1 42/42] kvm: planes: reconcile core plane state, UAPI and hypercall exit Sriram Nambakam
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