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s390x/ioinst: pass the retaddr to all IO instructions

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TCG needs the retaddr when injecting an interrupt. Let's just pass it
along and use RA_IGNORED for KVM. The value will be completely ignored for
KVM.

Convert program_interrupt() to s390_program_interrupt() directly, making
use of the passed address.

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: <20171130162744.25442-5-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2017-11-30 17:27:32 +01:00 committed by Cornelia Huck
parent fc21eb6bd9
commit 1b98fb99d3
5 changed files with 75 additions and 69 deletions
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1
target/s390x/cpu.h
View File

@ -720,6 +720,7 @@ void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr,
/* automatically detect the instruction length */
#define ILEN_AUTO 0xff
void program_interrupt(CPUS390XState *env, uint32_t code, int ilen);
#define RA_IGNORED 0
void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen,
uintptr_t ra);
/* service interrupts are floating therefore we must not pass an cpustate */

29
target/s390x/internal.h
View File

@ -379,20 +379,23 @@ void cpu_inject_stop(S390CPU *cpu);
/* ioinst.c */
void ioinst_handle_xsch(S390CPU *cpu, uint64_t reg1);
void ioinst_handle_csch(S390CPU *cpu, uint64_t reg1);
void ioinst_handle_hsch(S390CPU *cpu, uint64_t reg1);
void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb);
void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb);
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);
void ioinst_handle_xsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra);
void ioinst_handle_csch(S390CPU *cpu, uint64_t reg1, uintptr_t ra);
void ioinst_handle_hsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra);
void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb,
uintptr_t ra);
void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb,
uintptr_t ra);
void ioinst_handle_stcrw(S390CPU *cpu, uint32_t ipb, uintptr_t ra);
void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb,
uintptr_t ra);
int ioinst_handle_tsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, uintptr_t ra);
void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb, uintptr_t ra);
void ioinst_handle_schm(S390CPU *cpu, uint64_t reg1, uint64_t reg2,
uint32_t ipb);
void ioinst_handle_rsch(S390CPU *cpu, uint64_t reg1);
void ioinst_handle_rchp(S390CPU *cpu, uint64_t reg1);
void ioinst_handle_sal(S390CPU *cpu, uint64_t reg1);
uint32_t ipb, uintptr_t ra);
void ioinst_handle_rsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra);
void ioinst_handle_rchp(S390CPU *cpu, uint64_t reg1, uintptr_t ra);
void ioinst_handle_sal(S390CPU *cpu, uint64_t reg1, uintptr_t ra);
/* mem_helper.c */

67
target/s390x/ioinst.c
View File

@ -38,13 +38,13 @@ int ioinst_disassemble_sch_ident(uint32_t value, int *m, int *cssid, int *ssid,
return 0;
}
void ioinst_handle_xsch(S390CPU *cpu, uint64_t reg1)
void ioinst_handle_xsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra)
{
int cssid, ssid, schid, m;
SubchDev *sch;
if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) {
program_interrupt(&cpu->env, PGM_OPERAND, 4);
s390_program_interrupt(&cpu->env, PGM_OPERAND, 4, ra);
return;
}
trace_ioinst_sch_id("xsch", cssid, ssid, schid);
@ -56,13 +56,13 @@ void ioinst_handle_xsch(S390CPU *cpu, uint64_t reg1)
setcc(cpu, css_do_xsch(sch));
}
void ioinst_handle_csch(S390CPU *cpu, uint64_t reg1)
void ioinst_handle_csch(S390CPU *cpu, uint64_t reg1, uintptr_t ra)
{
int cssid, ssid, schid, m;
SubchDev *sch;
if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) {
program_interrupt(&cpu->env, PGM_OPERAND, 4);
s390_program_interrupt(&cpu->env, PGM_OPERAND, 4, ra);
return;
}
trace_ioinst_sch_id("csch", cssid, ssid, schid);
@ -74,13 +74,13 @@ void ioinst_handle_csch(S390CPU *cpu, uint64_t reg1)
setcc(cpu, css_do_csch(sch));
}
void ioinst_handle_hsch(S390CPU *cpu, uint64_t reg1)
void ioinst_handle_hsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra)
{
int cssid, ssid, schid, m;
SubchDev *sch;
if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) {
program_interrupt(&cpu->env, PGM_OPERAND, 4);
s390_program_interrupt(&cpu->env, PGM_OPERAND, 4, ra);
return;
}
trace_ioinst_sch_id("hsch", cssid, ssid, schid);
@ -105,7 +105,7 @@ static int ioinst_schib_valid(SCHIB *schib)
return 1;
}
void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, uintptr_t ra)
{
int cssid, ssid, schid, m;
SubchDev *sch;
@ -116,7 +116,7 @@ void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
addr = decode_basedisp_s(env, ipb, &ar);
if (addr & 3) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
return;
}
if (s390_cpu_virt_mem_read(cpu, addr, ar, &schib, sizeof(schib))) {
@ -124,7 +124,7 @@ void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
}
if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid) ||
!ioinst_schib_valid(&schib)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return;
}
trace_ioinst_sch_id("msch", cssid, ssid, schid);
@ -161,7 +161,7 @@ static int ioinst_orb_valid(ORB *orb)
return 1;
}
void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, uintptr_t ra)
{
int cssid, ssid, schid, m;
SubchDev *sch;
@ -172,7 +172,7 @@ void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
addr = decode_basedisp_s(env, ipb, &ar);
if (addr & 3) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
return;
}
if (s390_cpu_virt_mem_read(cpu, addr, ar, &orig_orb, sizeof(orb))) {
@ -181,7 +181,7 @@ void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
copy_orb_from_guest(&orb, &orig_orb);
if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid) ||
!ioinst_orb_valid(&orb)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return;
}
trace_ioinst_sch_id("ssch", cssid, ssid, schid);
@ -193,7 +193,7 @@ void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
setcc(cpu, css_do_ssch(sch, &orb));
}
void ioinst_handle_stcrw(S390CPU *cpu, uint32_t ipb)
void ioinst_handle_stcrw(S390CPU *cpu, uint32_t ipb, uintptr_t ra)
{
CRW crw;
uint64_t addr;
@ -203,7 +203,7 @@ void ioinst_handle_stcrw(S390CPU *cpu, uint32_t ipb)
addr = decode_basedisp_s(env, ipb, &ar);
if (addr & 3) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
return;
}
@ -218,7 +218,8 @@ void ioinst_handle_stcrw(S390CPU *cpu, uint32_t ipb)
}
}
void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb,
uintptr_t ra)
{
int cssid, ssid, schid, m;
SubchDev *sch;
@ -230,7 +231,7 @@ void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
addr = decode_basedisp_s(env, ipb, &ar);
if (addr & 3) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
return;
}
@ -241,7 +242,7 @@ void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
* access execption if it is not) first.
*/
if (!s390_cpu_virt_mem_check_write(cpu, addr, ar, sizeof(schib))) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
}
return;
}
@ -278,7 +279,7 @@ void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
setcc(cpu, cc);
}
int ioinst_handle_tsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
int ioinst_handle_tsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, uintptr_t ra)
{
CPUS390XState *env = &cpu->env;
int cssid, ssid, schid, m;
@ -289,13 +290,13 @@ int ioinst_handle_tsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb)
uint8_t ar;
if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return -EIO;
}
trace_ioinst_sch_id("tsch", cssid, ssid, schid);
addr = decode_basedisp_s(env, ipb, &ar);
if (addr & 3) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
return -EIO;
}
@ -585,7 +586,7 @@ static void ioinst_handle_chsc_unimplemented(ChscResp *res)
res->param = 0;
}
void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb)
void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb, uintptr_t ra)
{
ChscReq *req;
ChscResp *res;
@ -601,7 +602,7 @@ void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb)
addr = env->regs[reg];
/* Page boundary? */
if (addr & 0xfff) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
return;
}
/*
@ -616,7 +617,7 @@ void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb)
len = be16_to_cpu(req->len);
/* Length field valid? */
if ((len < 16) || (len > 4088) || (len & 7)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return;
}
memset((char *)req + len, 0, TARGET_PAGE_SIZE - len);
@ -653,7 +654,7 @@ void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb)
#define SCHM_REG1_DCT(_reg) (_reg & 0x0000000000000001)
void ioinst_handle_schm(S390CPU *cpu, uint64_t reg1, uint64_t reg2,
uint32_t ipb)
uint32_t ipb, uintptr_t ra)
{
uint8_t mbk;
int update;
@ -663,7 +664,7 @@ void ioinst_handle_schm(S390CPU *cpu, uint64_t reg1, uint64_t reg2,
trace_ioinst("schm");
if (SCHM_REG1_RES(reg1)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return;
}
@ -672,20 +673,20 @@ void ioinst_handle_schm(S390CPU *cpu, uint64_t reg1, uint64_t reg2,
dct = SCHM_REG1_DCT(reg1);
if (update && (reg2 & 0x000000000000001f)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return;
}
css_do_schm(mbk, update, dct, update ? reg2 : 0);
}
void ioinst_handle_rsch(S390CPU *cpu, uint64_t reg1)
void ioinst_handle_rsch(S390CPU *cpu, uint64_t reg1, uintptr_t ra)
{
int cssid, ssid, schid, m;
SubchDev *sch;
if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) {
program_interrupt(&cpu->env, PGM_OPERAND, 4);
s390_program_interrupt(&cpu->env, PGM_OPERAND, 4, ra);
return;
}
trace_ioinst_sch_id("rsch", cssid, ssid, schid);
@ -700,7 +701,7 @@ void ioinst_handle_rsch(S390CPU *cpu, uint64_t reg1)
#define RCHP_REG1_RES(_reg) (_reg & 0x00000000ff00ff00)
#define RCHP_REG1_CSSID(_reg) ((_reg & 0x0000000000ff0000) >> 16)
#define RCHP_REG1_CHPID(_reg) (_reg & 0x00000000000000ff)
void ioinst_handle_rchp(S390CPU *cpu, uint64_t reg1)
void ioinst_handle_rchp(S390CPU *cpu, uint64_t reg1, uintptr_t ra)
{
int cc;
uint8_t cssid;
@ -709,7 +710,7 @@ void ioinst_handle_rchp(S390CPU *cpu, uint64_t reg1)
CPUS390XState *env = &cpu->env;
if (RCHP_REG1_RES(reg1)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return;
}
@ -732,17 +733,17 @@ void ioinst_handle_rchp(S390CPU *cpu, uint64_t reg1)
break;
default:
/* Invalid channel subsystem. */
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return;
}
setcc(cpu, cc);
}
#define SAL_REG1_INVALID(_reg) (_reg & 0x0000000080000000)
void ioinst_handle_sal(S390CPU *cpu, uint64_t reg1)
void ioinst_handle_sal(S390CPU *cpu, uint64_t reg1, uintptr_t ra)
{
/* We do not provide address limit checking, so let's suppress it. */
if (SAL_REG1_INVALID(reg1) || reg1 & 0x000000000000ffff) {
program_interrupt(&cpu->env, PGM_OPERAND, 4);
s390_program_interrupt(&cpu->env, PGM_OPERAND, 4, ra);
}
}

27
target/s390x/kvm.c
View File

@ -1124,32 +1124,32 @@ static int handle_b2(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)
switch (ipa1) {
case PRIV_B2_XSCH:
ioinst_handle_xsch(cpu, env->regs[1]);
ioinst_handle_xsch(cpu, env->regs[1], RA_IGNORED);
break;
case PRIV_B2_CSCH:
ioinst_handle_csch(cpu, env->regs[1]);
ioinst_handle_csch(cpu, env->regs[1], RA_IGNORED);
break;
case PRIV_B2_HSCH:
ioinst_handle_hsch(cpu, env->regs[1]);
ioinst_handle_hsch(cpu, env->regs[1], RA_IGNORED);
break;
case PRIV_B2_MSCH:
ioinst_handle_msch(cpu, env->regs[1], run->s390_sieic.ipb);
ioinst_handle_msch(cpu, env->regs[1], run->s390_sieic.ipb, RA_IGNORED);
break;
case PRIV_B2_SSCH:
ioinst_handle_ssch(cpu, env->regs[1], run->s390_sieic.ipb);
ioinst_handle_ssch(cpu, env->regs[1], run->s390_sieic.ipb, RA_IGNORED);
break;
case PRIV_B2_STCRW:
ioinst_handle_stcrw(cpu, run->s390_sieic.ipb);
ioinst_handle_stcrw(cpu, run->s390_sieic.ipb, RA_IGNORED);
break;
case PRIV_B2_STSCH:
ioinst_handle_stsch(cpu, env->regs[1], run->s390_sieic.ipb);
ioinst_handle_stsch(cpu, env->regs[1], run->s390_sieic.ipb, RA_IGNORED);
break;
case PRIV_B2_TSCH:
/* We should only get tsch via KVM_EXIT_S390_TSCH. */
fprintf(stderr, "Spurious tsch intercept\n");
break;
case PRIV_B2_CHSC:
ioinst_handle_chsc(cpu, run->s390_sieic.ipb);
ioinst_handle_chsc(cpu, run->s390_sieic.ipb, RA_IGNORED);
break;
case PRIV_B2_TPI:
/* This should have been handled by kvm already. */
@ -1157,19 +1157,19 @@ static int handle_b2(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)
break;
case PRIV_B2_SCHM:
ioinst_handle_schm(cpu, env->regs[1], env->regs[2],
run->s390_sieic.ipb);
run->s390_sieic.ipb, RA_IGNORED);
break;
case PRIV_B2_RSCH:
ioinst_handle_rsch(cpu, env->regs[1]);
ioinst_handle_rsch(cpu, env->regs[1], RA_IGNORED);
break;
case PRIV_B2_RCHP:
ioinst_handle_rchp(cpu, env->regs[1]);
ioinst_handle_rchp(cpu, env->regs[1], RA_IGNORED);
break;
case PRIV_B2_STCPS:
/* We do not provide this instruction, it is suppressed. */
break;
case PRIV_B2_SAL:
ioinst_handle_sal(cpu, env->regs[1]);
ioinst_handle_sal(cpu, env->regs[1], RA_IGNORED);
break;
case PRIV_B2_SIGA:
/* Not provided, set CC = 3 for subchannel not operational */
@ -1673,7 +1673,8 @@ static int handle_tsch(S390CPU *cpu)
cpu_synchronize_state(cs);
ret = ioinst_handle_tsch(cpu, cpu->env.regs[1], run->s390_tsch.ipb);
ret = ioinst_handle_tsch(cpu, cpu->env.regs[1], run->s390_tsch.ipb,
RA_IGNORED);
if (ret < 0) {
/*
* Failure.

20
target/s390x/misc_helper.c
View File

@ -323,7 +323,7 @@ void HELPER(xsch)(CPUS390XState *env, uint64_t r1)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_xsch(cpu, r1);
ioinst_handle_xsch(cpu, r1, GETPC());
qemu_mutex_unlock_iothread();
}
@ -331,7 +331,7 @@ void HELPER(csch)(CPUS390XState *env, uint64_t r1)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_csch(cpu, r1);
ioinst_handle_csch(cpu, r1, GETPC());
qemu_mutex_unlock_iothread();
}
@ -339,7 +339,7 @@ void HELPER(hsch)(CPUS390XState *env, uint64_t r1)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_hsch(cpu, r1);
ioinst_handle_hsch(cpu, r1, GETPC());
qemu_mutex_unlock_iothread();
}
@ -347,7 +347,7 @@ void HELPER(msch)(CPUS390XState *env, uint64_t r1, uint64_t inst)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_msch(cpu, r1, inst >> 16);
ioinst_handle_msch(cpu, r1, inst >> 16, GETPC());
qemu_mutex_unlock_iothread();
}
@ -355,7 +355,7 @@ void HELPER(rchp)(CPUS390XState *env, uint64_t r1)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_rchp(cpu, r1);
ioinst_handle_rchp(cpu, r1, GETPC());
qemu_mutex_unlock_iothread();
}
@ -363,7 +363,7 @@ void HELPER(rsch)(CPUS390XState *env, uint64_t r1)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_rsch(cpu, r1);
ioinst_handle_rsch(cpu, r1, GETPC());
qemu_mutex_unlock_iothread();
}
@ -371,7 +371,7 @@ void HELPER(ssch)(CPUS390XState *env, uint64_t r1, uint64_t inst)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_ssch(cpu, r1, inst >> 16);
ioinst_handle_ssch(cpu, r1, inst >> 16, GETPC());
qemu_mutex_unlock_iothread();
}
@ -379,7 +379,7 @@ void HELPER(stsch)(CPUS390XState *env, uint64_t r1, uint64_t inst)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_stsch(cpu, r1, inst >> 16);
ioinst_handle_stsch(cpu, r1, inst >> 16, GETPC());
qemu_mutex_unlock_iothread();
}
@ -387,7 +387,7 @@ void HELPER(tsch)(CPUS390XState *env, uint64_t r1, uint64_t inst)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_tsch(cpu, r1, inst >> 16);
ioinst_handle_tsch(cpu, r1, inst >> 16, GETPC());
qemu_mutex_unlock_iothread();
}
@ -395,7 +395,7 @@ void HELPER(chsc)(CPUS390XState *env, uint64_t inst)
{
S390CPU *cpu = s390_env_get_cpu(env);
qemu_mutex_lock_iothread();
ioinst_handle_chsc(cpu, inst >> 16);
ioinst_handle_chsc(cpu, inst >> 16, GETPC());
qemu_mutex_unlock_iothread();
}
#endif