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s390x/tcg: rip out dead tpi code

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It is broken and not even wired up. We'll add a new handler soon, but
that will live somewhere else.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171130162744.25442-4-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2017-11-30 17:27:31 +01:00 committed by Cornelia Huck
parent 7693f77a7f
commit fc21eb6bd9
4 changed files with 0 additions and 34 deletions
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6
hw/s390x/css.c
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@ -1723,12 +1723,6 @@ void css_undo_stcrw(CRW *crw)
QTAILQ_INSERT_HEAD(&channel_subsys.pending_crws, crw_cont, sibling);
}
int css_do_tpi(IOIntCode *int_code, int lowcore)
{
/* No pending interrupts for !KVM. */
return 0;
}
int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid, uint8_t l_chpid,
int rfmt, void *buf)
{

1
include/hw/s390x/css.h
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@ -248,7 +248,6 @@ int css_do_tsch_get_irb(SubchDev *sch, IRB *irb, int *irb_len);
void css_do_tsch_update_subch(SubchDev *sch);
int css_do_stcrw(CRW *crw);
void css_undo_stcrw(CRW *crw);
int css_do_tpi(IOIntCode *int_code, int lowcore);
int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid, uint8_t l_chpid,
int rfmt, void *buf);
void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo);

1
target/s390x/internal.h
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@ -388,7 +388,6 @@ void ioinst_handle_stcrw(S390CPU *cpu, uint32_t ipb);
void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb);
int ioinst_handle_tsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb);
void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb);
int ioinst_handle_tpi(S390CPU *cpu, uint32_t ipb);
void ioinst_handle_schm(S390CPU *cpu, uint64_t reg1, uint64_t reg2,
uint32_t ipb);
void ioinst_handle_rsch(S390CPU *cpu, uint64_t reg1);

26
target/s390x/ioinst.c
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@ -647,32 +647,6 @@ void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb)
}
}
int ioinst_handle_tpi(S390CPU *cpu, uint32_t ipb)
{
CPUS390XState *env = &cpu->env;
uint64_t addr;
int lowcore;
IOIntCode int_code;
hwaddr len;
int ret;
uint8_t ar;
trace_ioinst("tpi");
addr = decode_basedisp_s(env, ipb, &ar);
if (addr & 3) {
program_interrupt(env, PGM_SPECIFICATION, 4);
return -EIO;
}
lowcore = addr ? 0 : 1;
len = lowcore ? 8 /* two words */ : 12 /* three words */;
ret = css_do_tpi(&int_code, lowcore);
if (ret == 1) {
s390_cpu_virt_mem_write(cpu, lowcore ? 184 : addr, ar, &int_code, len);
}
return ret;
}
#define SCHM_REG1_RES(_reg) (_reg & 0x000000000ffffffc)
#define SCHM_REG1_MBK(_reg) ((_reg & 0x00000000f0000000) >> 28)
#define SCHM_REG1_UPD(_reg) ((_reg & 0x0000000000000002) >> 1)