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authorLinus Torvalds <torvalds@linux-foundation.org>2016-01-12 21:22:12 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-12 21:22:12 (GMT)
commit1baa5efbeb6eb75de697f7b5931094be33f12005 (patch)
tree30358fcebb950305929306c6654f8a585f1f5500 /arch/s390/kernel
parentc9bed1cf51011c815d88288b774865d013ca78a8 (diff)
parent45bdbcfdf241149642fb6c25ab0c209d59c371b7 (diff)
downloadlinux-1baa5efbeb6eb75de697f7b5931094be33f12005.tar.xz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini: "PPC changes will come next week. - s390: Support for runtime instrumentation within guests, support of 248 VCPUs. - ARM: rewrite of the arm64 world switch in C, support for 16-bit VM identifiers. Performance counter virtualization missed the boat. - x86: Support for more Hyper-V features (synthetic interrupt controller), MMU cleanups" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (115 commits) kvm: x86: Fix vmwrite to SECONDARY_VM_EXEC_CONTROL kvm/x86: Hyper-V SynIC timers tracepoints kvm/x86: Hyper-V SynIC tracepoints kvm/x86: Update SynIC timers on guest entry only kvm/x86: Skip SynIC vector check for QEMU side kvm/x86: Hyper-V fix SynIC timer disabling condition kvm/x86: Reorg stimer_expiration() to better control timer restart kvm/x86: Hyper-V unify stimer_start() and stimer_restart() kvm/x86: Drop stimer_stop() function kvm/x86: Hyper-V timers fix incorrect logical operation KVM: move architecture-dependent requests to arch/ KVM: renumber vcpu->request bits KVM: document which architecture uses each request bit KVM: Remove unused KVM_REQ_KICK to save a bit in vcpu->requests kvm: x86: Check kvm_write_guest return value in kvm_write_wall_clock KVM: s390: implement the RI support of guest kvm/s390: drop unpaired smp_mb kvm: x86: fix comment about {mmu,nested_mmu}.gva_to_gpa KVM: x86: MMU: Use clear_page() instead of init_shadow_page_table() arm/arm64: KVM: Detect vGIC presence at runtime ...
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/processor.c6
-rw-r--r--arch/s390/kernel/setup.c9
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 7ce00e7..647128d 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -61,6 +61,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
"esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp",
"edat", "etf3eh", "highgprs", "te", "vx"
};
+ static const char * const int_hwcap_str[] = {
+ "sie"
+ };
unsigned long n = (unsigned long) v - 1;
int i;
@@ -75,6 +78,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
for (i = 0; i < ARRAY_SIZE(hwcap_str); i++)
if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
seq_printf(m, "%s ", hwcap_str[i]);
+ for (i = 0; i < ARRAY_SIZE(int_hwcap_str); i++)
+ if (int_hwcap_str[i] && (int_hwcap & (1UL << i)))
+ seq_printf(m, "%s ", int_hwcap_str[i]);
seq_puts(m, "\n");
show_cacheinfo(m);
}
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index c837bca..dc83ae6 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -80,6 +80,8 @@ EXPORT_SYMBOL(console_irq);
unsigned long elf_hwcap __read_mostly = 0;
char elf_platform[ELF_PLATFORM_SIZE];
+unsigned long int_hwcap = 0;
+
int __initdata memory_end_set;
unsigned long __initdata memory_end;
unsigned long __initdata max_physmem_end;
@@ -793,6 +795,13 @@ static int __init setup_hwcaps(void)
strcpy(elf_platform, "z13");
break;
}
+
+ /*
+ * Virtualization support HWCAP_INT_SIE is bit 0.
+ */
+ if (sclp.has_sief2)
+ int_hwcap |= HWCAP_INT_SIE;
+
return 0;
}
arch_initcall(setup_hwcaps);