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Diffstat (limited to 'ANDROID_3.4.5/arch/s390/kvm/diag.c')
-rw-r--r--ANDROID_3.4.5/arch/s390/kvm/diag.c97
1 files changed, 0 insertions, 97 deletions
diff --git a/ANDROID_3.4.5/arch/s390/kvm/diag.c b/ANDROID_3.4.5/arch/s390/kvm/diag.c
deleted file mode 100644
index a353f0ea..00000000
--- a/ANDROID_3.4.5/arch/s390/kvm/diag.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * diag.c - handling diagnose instructions
- *
- * Copyright IBM Corp. 2008,2011
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * Author(s): Carsten Otte <cotte@de.ibm.com>
- * Christian Borntraeger <borntraeger@de.ibm.com>
- */
-
-#include <linux/kvm.h>
-#include <linux/kvm_host.h>
-#include "kvm-s390.h"
-
-static int diag_release_pages(struct kvm_vcpu *vcpu)
-{
- unsigned long start, end;
- unsigned long prefix = vcpu->arch.sie_block->prefix;
-
- start = vcpu->run->s.regs.gprs[(vcpu->arch.sie_block->ipa & 0xf0) >> 4];
- end = vcpu->run->s.regs.gprs[vcpu->arch.sie_block->ipa & 0xf] + 4096;
-
- if (start & ~PAGE_MASK || end & ~PAGE_MASK || start > end
- || start < 2 * PAGE_SIZE)
- return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-
- VCPU_EVENT(vcpu, 5, "diag release pages %lX %lX", start, end);
- vcpu->stat.diagnose_10++;
-
- /* we checked for start > end above */
- if (end < prefix || start >= prefix + 2 * PAGE_SIZE) {
- gmap_discard(start, end, vcpu->arch.gmap);
- } else {
- if (start < prefix)
- gmap_discard(start, prefix, vcpu->arch.gmap);
- if (end >= prefix)
- gmap_discard(prefix + 2 * PAGE_SIZE,
- end, vcpu->arch.gmap);
- }
- return 0;
-}
-
-static int __diag_time_slice_end(struct kvm_vcpu *vcpu)
-{
- VCPU_EVENT(vcpu, 5, "%s", "diag time slice end");
- vcpu->stat.diagnose_44++;
- vcpu_put(vcpu);
- yield();
- vcpu_load(vcpu);
- return 0;
-}
-
-static int __diag_ipl_functions(struct kvm_vcpu *vcpu)
-{
- unsigned int reg = vcpu->arch.sie_block->ipa & 0xf;
- unsigned long subcode = vcpu->run->s.regs.gprs[reg] & 0xffff;
-
- VCPU_EVENT(vcpu, 5, "diag ipl functions, subcode %lx", subcode);
- switch (subcode) {
- case 3:
- vcpu->run->s390_reset_flags = KVM_S390_RESET_CLEAR;
- break;
- case 4:
- vcpu->run->s390_reset_flags = 0;
- break;
- default:
- return -EOPNOTSUPP;
- }
-
- atomic_set_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags);
- vcpu->run->s390_reset_flags |= KVM_S390_RESET_SUBSYSTEM;
- vcpu->run->s390_reset_flags |= KVM_S390_RESET_IPL;
- vcpu->run->s390_reset_flags |= KVM_S390_RESET_CPU_INIT;
- vcpu->run->exit_reason = KVM_EXIT_S390_RESET;
- VCPU_EVENT(vcpu, 3, "requesting userspace resets %llx",
- vcpu->run->s390_reset_flags);
- return -EREMOTE;
-}
-
-int kvm_s390_handle_diag(struct kvm_vcpu *vcpu)
-{
- int code = (vcpu->arch.sie_block->ipb & 0xfff0000) >> 16;
-
- switch (code) {
- case 0x10:
- return diag_release_pages(vcpu);
- case 0x44:
- return __diag_time_slice_end(vcpu);
- case 0x308:
- return __diag_ipl_functions(vcpu);
- default:
- return -EOPNOTSUPP;
- }
-}