8d2f850a5a
Allows to easily convert more callers of program_interrupt() and to easily introduce new exceptions without forgetting about the cpu state reset. Use s390_program_interrupt() in places where we already had the same pattern. We will later get rid of program_interrupt(). RA != 0 checks are already done behind the scenes. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20171130162744.25442-2-david@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* s390x crypto helpers
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*
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* Copyright (c) 2017 Red Hat Inc
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*
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* Authors:
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* David Hildenbrand <david@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu/main-loop.h"
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#include "internal.h"
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#include "exec/helper-proto.h"
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#include "exec/exec-all.h"
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#include "exec/cpu_ldst.h"
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uint32_t HELPER(msa)(CPUS390XState *env, uint32_t r1, uint32_t r2, uint32_t r3,
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uint32_t type)
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{
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const uintptr_t ra = GETPC();
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const uint8_t mod = env->regs[0] & 0x80ULL;
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const uint8_t fc = env->regs[0] & 0x7fULL;
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uint8_t subfunc[16] = { 0 };
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uint64_t param_addr;
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int i;
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switch (type) {
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case S390_FEAT_TYPE_KMAC:
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case S390_FEAT_TYPE_KIMD:
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case S390_FEAT_TYPE_KLMD:
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case S390_FEAT_TYPE_PCKMO:
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case S390_FEAT_TYPE_PCC:
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if (mod) {
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s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
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return 0;
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}
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break;
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}
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s390_get_feat_block(type, subfunc);
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if (!test_be_bit(fc, subfunc)) {
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s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
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return 0;
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}
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switch (fc) {
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case 0: /* query subfunction */
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for (i = 0; i < 16; i++) {
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param_addr = wrap_address(env, env->regs[1] + i);
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cpu_stb_data_ra(env, param_addr, subfunc[i], ra);
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}
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break;
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default:
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/* we don't implement any other subfunction yet */
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g_assert_not_reached();
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}
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return 0;
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}
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