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author | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-25 10:50:11 -0400 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-25 10:50:11 -0400 |
commit | 79b1e56509beb8d53b2b92f27555cd2175c67b8a (patch) | |
tree | dc51792278abe09d70d382750269a04225197fb7 /arch | |
parent | a01b45e9d34d278129296daf91c4771143fa9dd9 (diff) | |
parent | 1f703d2cf20464338c3d5279dddfb65ac79b8782 (diff) | |
download | linux-79b1e56509beb8d53b2b92f27555cd2175c67b8a.tar.bz2 |
Merge tag 'kvm-s390-next-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: s390: Features for 5.14
- new HW facilities for guests
- make inline assembly more robust with KASAN and co
Diffstat (limited to 'arch')
-rw-r--r-- | arch/s390/kvm/kvm-s390.c | 22 | ||||
-rw-r--r-- | arch/s390/tools/gen_facilities.c | 4 |
2 files changed, 17 insertions, 9 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 1695f0ced5ba..f9fb1e1d960d 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -349,31 +349,31 @@ static void allow_cpu_feat(unsigned long nr) static inline int plo_test_bit(unsigned char nr) { - register unsigned long r0 asm("0") = (unsigned long) nr | 0x100; + unsigned long function = (unsigned long)nr | 0x100; int cc; asm volatile( + " lgr 0,%[function]\n" /* Parameter registers are ignored for "test bit" */ " plo 0,0,0,0(0)\n" " ipm %0\n" " srl %0,28\n" : "=d" (cc) - : "d" (r0) - : "cc"); + : [function] "d" (function) + : "cc", "0"); return cc == 0; } static __always_inline void __insn32_query(unsigned int opcode, u8 *query) { - register unsigned long r0 asm("0") = 0; /* query function */ - register unsigned long r1 asm("1") = (unsigned long) query; - asm volatile( - /* Parameter regs are ignored */ + " lghi 0,0\n" + " lgr 1,%[query]\n" + /* Parameter registers are ignored */ " .insn rrf,%[opc] << 16,2,4,6,0\n" : - : "d" (r0), "a" (r1), [opc] "i" (opcode) - : "cc", "memory"); + : [query] "d" ((unsigned long)query), [opc] "i" (opcode) + : "cc", "memory", "0", "1"); } #define INSN_SORTL 0xb938 @@ -733,6 +733,10 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap) set_kvm_facility(kvm->arch.model.fac_mask, 152); set_kvm_facility(kvm->arch.model.fac_list, 152); } + if (test_facility(192)) { + set_kvm_facility(kvm->arch.model.fac_mask, 192); + set_kvm_facility(kvm->arch.model.fac_list, 192); + } r = 0; } else r = -EINVAL; diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c index 61ce5b59b828..606324e56e4e 100644 --- a/arch/s390/tools/gen_facilities.c +++ b/arch/s390/tools/gen_facilities.c @@ -115,6 +115,10 @@ static struct facility_def facility_defs[] = { 12, /* AP Query Configuration Information */ 15, /* AP Facilities Test */ 156, /* etoken facility */ + 165, /* nnpa facility */ + 193, /* bear enhancement facility */ + 194, /* rdp enhancement facility */ + 196, /* processor activity instrumentation facility */ -1 /* END */ } }, |