KVM: s390: vsie: initial support for nested virtualization

[linux.git] / arch / s390 / include / asm / kvm_host.h

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 96bef30e2e33f4dff17b19537a7d88f810aec8da..255609c86901139501cb4338dffe9c2a4db73da7 100644 (file)
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -145,7 +145,7 @@ struct kvm_s390_sie_block {
        __u64   cputm;                  /* 0x0028 */
        __u64   ckc;                    /* 0x0030 */
        __u64   epoch;                  /* 0x0038 */
-       __u8    reserved40[4];          /* 0x0040 */
+       __u32   svcc;                   /* 0x0040 */
 #define LCTL_CR0       0x8000
 #define LCTL_CR6       0x0200
 #define LCTL_CR9       0x0040
@@ -167,6 +167,9 @@ struct kvm_s390_sie_block {
 #define ICPT_INST      0x04
 #define ICPT_PROGI     0x08
 #define ICPT_INSTPROGI 0x0C
+#define ICPT_EXTINT    0x14
+#define ICPT_VALIDITY  0x20
+#define ICPT_STOP      0x28
 #define ICPT_OPEREXC   0x2C
 #define ICPT_PARTEXEC  0x38
 #define ICPT_IOINST    0x40
@@ -281,6 +284,7 @@ struct kvm_vcpu_stat {
        u32 instruction_stsi;
        u32 instruction_stfl;
        u32 instruction_tprot;
+       u32 instruction_sie;
        u32 instruction_essa;
        u32 instruction_sthyi;
        u32 instruction_sigp_sense;
@@ -637,6 +641,14 @@ struct sie_page2 {
        u8 reserved900[0x1000 - 0x900];                 /* 0x0900 */
 } __packed;
 
+struct kvm_s390_vsie {
+       struct mutex mutex;
+       struct radix_tree_root addr_to_page;
+       int page_count;
+       int next;
+       struct page *pages[KVM_MAX_VCPUS];
+};
+
 struct kvm_arch{
        void *sca;
        int use_esca;
@@ -661,6 +673,7 @@ struct kvm_arch{
        struct sie_page2 *sie_page2;
        struct kvm_s390_cpu_model model;
        struct kvm_s390_crypto crypto;
+       struct kvm_s390_vsie vsie;
        u64 epoch;
        /* subset of available cpu features enabled by user space */
        DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS);