Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* virtio-blk: remove SCSI passthrough functionality
* require x86-64-v2 baseline ISA
* SEV-SNP host support
* fix xsave.flat with TCG
* fixes for CPUID checks done by TCG

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# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
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# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (46 commits)
  hw/i386: Add support for loading BIOS using guest_memfd
  hw/i386/sev: Use guest_memfd for legacy ROMs
  memory: Introduce memory_region_init_ram_guest_memfd()
  i386/sev: Allow measured direct kernel boot on SNP
  i386/sev: Reorder struct declarations
  i386/sev: Extract build_kernel_loader_hashes
  i386/sev: Enable KVM_HC_MAP_GPA_RANGE hcall for SNP guests
  i386/kvm: Add KVM_EXIT_HYPERCALL handling for KVM_HC_MAP_GPA_RANGE
  i386/sev: Invoke launch_updata_data() for SNP class
  i386/sev: Invoke launch_updata_data() for SEV class
  hw/i386/sev: Add support to encrypt BIOS when SEV-SNP is enabled
  i386/sev: Add support for SNP CPUID validation
  i386/sev: Add support for populating OVMF metadata pages
  hw/i386/sev: Add function to get SEV metadata from OVMF header
  i386/sev: Set CPU state to protected once SNP guest payload is finalized
  i386/sev: Add handling to encrypt/finalize guest launch data
  i386/sev: Add the SNP launch start context
  i386/sev: Update query-sev QAPI format to handle SEV-SNP
  i386/sev: Add a class method to determine KVM VM type for SNP guests
  i386/sev: Don't return launch measurements for SEV-SNP guests
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 51 insertions, 1 deletions

diff --git a/linux-headers/asm-x86/kvm.h b/linux-headers/asm-x86/kvm.h
index 31c95c2dfe..1c8f918234 100644
--- a/linux-headers/asm-x86/kvm.h
+++ b/linux-headers/asm-x86/kvm.h
@@ -695,6 +695,11 @@ enum sev_cmd_id {
 	/* Second time is the charm; improved versions of the above ioctls.  */
 	KVM_SEV_INIT2,
 
+	/* SNP-specific commands */
+	KVM_SEV_SNP_LAUNCH_START = 100,
+	KVM_SEV_SNP_LAUNCH_UPDATE,
+	KVM_SEV_SNP_LAUNCH_FINISH,
+
 	KVM_SEV_NR_MAX,
 };
 
@@ -709,7 +714,9 @@ struct kvm_sev_cmd {
 struct kvm_sev_init {
 	__u64 vmsa_features;
 	__u32 flags;
-	__u32 pad[9];
+	__u16 ghcb_version;
+	__u16 pad1;
+	__u32 pad2[8];
 };
 
 struct kvm_sev_launch_start {
@@ -820,6 +827,48 @@ struct kvm_sev_receive_update_data {
 	__u32 pad2;
 };
 
+struct kvm_sev_snp_launch_start {
+	__u64 policy;
+	__u8 gosvw[16];
+	__u16 flags;
+	__u8 pad0[6];
+	__u64 pad1[4];
+};
+
+/* Kept in sync with firmware values for simplicity. */
+#define KVM_SEV_SNP_PAGE_TYPE_NORMAL		0x1
+#define KVM_SEV_SNP_PAGE_TYPE_ZERO		0x3
+#define KVM_SEV_SNP_PAGE_TYPE_UNMEASURED	0x4
+#define KVM_SEV_SNP_PAGE_TYPE_SECRETS		0x5
+#define KVM_SEV_SNP_PAGE_TYPE_CPUID		0x6
+
+struct kvm_sev_snp_launch_update {
+	__u64 gfn_start;
+	__u64 uaddr;
+	__u64 len;
+	__u8 type;
+	__u8 pad0;
+	__u16 flags;
+	__u32 pad1;
+	__u64 pad2[4];
+};
+
+#define KVM_SEV_SNP_ID_BLOCK_SIZE	96
+#define KVM_SEV_SNP_ID_AUTH_SIZE	4096
+#define KVM_SEV_SNP_FINISH_DATA_SIZE	32
+
+struct kvm_sev_snp_launch_finish {
+	__u64 id_block_uaddr;
+	__u64 id_auth_uaddr;
+	__u8 id_block_en;
+	__u8 auth_key_en;
+	__u8 vcek_disabled;
+	__u8 host_data[KVM_SEV_SNP_FINISH_DATA_SIZE];
+	__u8 pad0[3];
+	__u16 flags;
+	__u64 pad1[4];
+};
+
 #define KVM_X2APIC_API_USE_32BIT_IDS            (1ULL << 0)
 #define KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK  (1ULL << 1)
 
@@ -870,5 +919,6 @@ struct kvm_hyperv_eventfd {
 #define KVM_X86_SW_PROTECTED_VM	1
 #define KVM_X86_SEV_VM		2
 #define KVM_X86_SEV_ES_VM	3
+#define KVM_X86_SNP_VM		4
 
 #endif /* _ASM_X86_KVM_H */