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s390x/pci: pass the retaddr to all PCI instructions

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Once we wire up TCG, we will need the retaddr to correctly inject
program interrupts. As we want to get rid of the function
program_interrupt(), convert PCI code too.

For KVM, we can simply use RA_IGNORED.

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: <20171130162744.25442-6-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2017-11-30 17:27:33 +01:00 committed by Cornelia Huck
parent 1b98fb99d3
commit 468a93898a
3 changed files with 59 additions and 54 deletions
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83
hw/s390x/s390-pci-inst.c
View File

@ -142,7 +142,7 @@ out:
return rc;
}
int clp_service_call(S390CPU *cpu, uint8_t r2)
int clp_service_call(S390CPU *cpu, uint8_t r2, uintptr_t ra)
{
ClpReqHdr *reqh;
ClpRspHdr *resh;
@ -158,7 +158,7 @@ int clp_service_call(S390CPU *cpu, uint8_t r2)
cpu_synchronize_state(CPU(cpu));
if (env->psw.mask & PSW_MASK_PSTATE) {
program_interrupt(env, PGM_PRIVILEGED, 4);
s390_program_interrupt(env, PGM_PRIVILEGED, 4, ra);
return 0;
}
@ -168,7 +168,7 @@ int clp_service_call(S390CPU *cpu, uint8_t r2)
reqh = (ClpReqHdr *)buffer;
req_len = lduw_p(&reqh->len);
if (req_len < 16 || req_len > 8184 || (req_len % 8 != 0)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
@ -179,11 +179,11 @@ int clp_service_call(S390CPU *cpu, uint8_t r2)
resh = (ClpRspHdr *)(buffer + req_len);
res_len = lduw_p(&resh->len);
if (res_len < 8 || res_len > 8176 || (res_len % 8 != 0)) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
if ((req_len + res_len) > 8192) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
@ -314,7 +314,7 @@ out:
return 0;
}
int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra)
{
CPUS390XState *env = &cpu->env;
S390PCIBusDevice *pbdev;
@ -329,12 +329,12 @@ int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
cpu_synchronize_state(CPU(cpu));
if (env->psw.mask & PSW_MASK_PSTATE) {
program_interrupt(env, PGM_PRIVILEGED, 4);
s390_program_interrupt(env, PGM_PRIVILEGED, 4, ra);
return 0;
}
if (r2 & 0x1) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
return 0;
}
@ -367,19 +367,19 @@ int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
if (pcias < 6) {
if ((8 - (offset & 0x7)) < len) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
mr = pbdev->pdev->io_regions[pcias].memory;
result = memory_region_dispatch_read(mr, offset, &data, len,
MEMTXATTRS_UNSPECIFIED);
if (result != MEMTX_OK) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
} else if (pcias == 15) {
if ((4 - (offset & 0x3)) < len) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
data = pci_host_config_read_common(
@ -398,7 +398,7 @@ int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
data = bswap64(data);
break;
default:
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
} else {
@ -425,7 +425,7 @@ static int trap_msix(S390PCIBusDevice *pbdev, uint64_t offset, uint8_t pcias)
}
}
int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra)
{
CPUS390XState *env = &cpu->env;
uint64_t offset, data;
@ -439,12 +439,12 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
cpu_synchronize_state(CPU(cpu));
if (env->psw.mask & PSW_MASK_PSTATE) {
program_interrupt(env, PGM_PRIVILEGED, 4);
s390_program_interrupt(env, PGM_PRIVILEGED, 4, ra);
return 0;
}
if (r2 & 0x1) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
return 0;
}
@ -478,7 +478,7 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
data = env->regs[r1];
if (pcias < 6) {
if ((8 - (offset & 0x7)) < len) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
@ -492,12 +492,12 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
result = memory_region_dispatch_write(mr, offset, data, len,
MEMTXATTRS_UNSPECIFIED);
if (result != MEMTX_OK) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
} else if (pcias == 15) {
if ((4 - (offset & 0x3)) < len) {
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
switch (len) {
@ -513,7 +513,7 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
data = bswap64(data);
break;
default:
program_interrupt(env, PGM_OPERAND, 4);
s390_program_interrupt(env, PGM_OPERAND, 4, ra);
return 0;
}
@ -531,7 +531,7 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
return 0;
}
int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra)
{
CPUS390XState *env = &cpu->env;
uint32_t fh;
@ -545,12 +545,12 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
cpu_synchronize_state(CPU(cpu));
if (env->psw.mask & PSW_MASK_PSTATE) {
program_interrupt(env, PGM_PRIVILEGED, 4);
s390_program_interrupt(env, PGM_PRIVILEGED, 4, ra);
goto out;
}
if (r2 & 0x1) {
program_interrupt(env, PGM_SPECIFICATION, 4);
s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra);
goto out;
}
@ -624,7 +624,7 @@ out:
}
int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
uint8_t ar)
uint8_t ar, uintptr_t ra)
{
CPUS390XState *env = &cpu->env;
S390PCIBusDevice *pbdev;
@ -637,7 +637,7 @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
uint8_t buffer[128];
if (env->psw.mask & PSW_MASK_PSTATE) {
program_interrupt(env, PGM_PRIVILEGED, 6);
s390_program_interrupt(env, PGM_PRIVILEGED, 6, ra);
return 0;
}
@ -659,7 +659,7 @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
case 128:
break;
default:
program_interrupt(env, PGM_SPECIFICATION, 6);
s390_program_interrupt(env, PGM_SPECIFICATION, 6, ra);
return 0;
}
@ -687,7 +687,7 @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
mr = pbdev->pdev->io_regions[pcias].memory;
if (!memory_region_access_valid(mr, env->regs[r3], len, true)) {
program_interrupt(env, PGM_OPERAND, 6);
s390_program_interrupt(env, PGM_OPERAND, 6, ra);
return 0;
}
@ -700,7 +700,7 @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
ldq_p(buffer + i * 8), 8,
MEMTXATTRS_UNSPECIFIED);
if (result != MEMTX_OK) {
program_interrupt(env, PGM_OPERAND, 6);
s390_program_interrupt(env, PGM_OPERAND, 6, ra);
return 0;
}
}
@ -767,7 +767,8 @@ int pci_dereg_irqs(S390PCIBusDevice *pbdev)
return 0;
}
static int reg_ioat(CPUS390XState *env, S390PCIIOMMU *iommu, ZpciFib fib)
static int reg_ioat(CPUS390XState *env, S390PCIIOMMU *iommu, ZpciFib fib,
uintptr_t ra)
{
uint64_t pba = ldq_p(&fib.pba);
uint64_t pal = ldq_p(&fib.pal);
@ -776,14 +777,14 @@ static int reg_ioat(CPUS390XState *env, S390PCIIOMMU *iommu, ZpciFib fib)
uint8_t t = (g_iota >> 11) & 0x1;
if (pba > pal || pba < ZPCI_SDMA_ADDR || pal > ZPCI_EDMA_ADDR) {
program_interrupt(env, PGM_OPERAND, 6);
s390_program_interrupt(env, PGM_OPERAND, 6, ra);
return -EINVAL;
}
/* currently we only support designation type 1 with translation */
if (!(dt == ZPCI_IOTA_RTTO && t)) {
error_report("unsupported ioat dt %d t %d", dt, t);
program_interrupt(env, PGM_OPERAND, 6);
s390_program_interrupt(env, PGM_OPERAND, 6, ra);
return -EINVAL;
}
@ -804,7 +805,8 @@ void pci_dereg_ioat(S390PCIIOMMU *iommu)
iommu->g_iota = 0;
}
int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
uintptr_t ra)
{
CPUS390XState *env = &cpu->env;
uint8_t oc, dmaas;
@ -814,7 +816,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
uint64_t cc = ZPCI_PCI_LS_OK;
if (env->psw.mask & PSW_MASK_PSTATE) {
program_interrupt(env, PGM_PRIVILEGED, 6);
s390_program_interrupt(env, PGM_PRIVILEGED, 6, ra);
return 0;
}
@ -823,7 +825,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
fh = env->regs[r1] >> 32;
if (fiba & 0x7) {
program_interrupt(env, PGM_SPECIFICATION, 6);
s390_program_interrupt(env, PGM_SPECIFICATION, 6, ra);
return 0;
}
@ -850,7 +852,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
}
if (fib.fmt != 0) {
program_interrupt(env, PGM_OPERAND, 6);
s390_program_interrupt(env, PGM_OPERAND, 6, ra);
return 0;
}
@ -879,7 +881,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
} else if (pbdev->iommu->enabled) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE);
} else if (reg_ioat(env, pbdev->iommu, fib)) {
} else if (reg_ioat(env, pbdev->iommu, fib, ra)) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_INSUF_RES);
}
@ -904,7 +906,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE);
} else {
pci_dereg_ioat(pbdev->iommu);
if (reg_ioat(env, pbdev->iommu, fib)) {
if (reg_ioat(env, pbdev->iommu, fib, ra)) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_INSUF_RES);
}
@ -935,7 +937,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
pbdev->fmb_addr = ldq_p(&fib.fmb_addr);
break;
default:
program_interrupt(&cpu->env, PGM_OPERAND, 6);
s390_program_interrupt(&cpu->env, PGM_OPERAND, 6, ra);
cc = ZPCI_PCI_LS_ERR;
}
@ -943,7 +945,8 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
return 0;
}
int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
uintptr_t ra)
{
CPUS390XState *env = &cpu->env;
uint8_t dmaas;
@ -954,7 +957,7 @@ int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
uint64_t cc = ZPCI_PCI_LS_OK;
if (env->psw.mask & PSW_MASK_PSTATE) {
program_interrupt(env, PGM_PRIVILEGED, 6);
s390_program_interrupt(env, PGM_PRIVILEGED, 6, ra);
return 0;
}
@ -968,7 +971,7 @@ int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
}
if (fiba & 0x7) {
program_interrupt(env, PGM_SPECIFICATION, 6);
s390_program_interrupt(env, PGM_SPECIFICATION, 6, ra);
return 0;
}

16
hw/s390x/s390-pci-inst.h
View File

@ -293,13 +293,15 @@ typedef struct ZpciFib {
int pci_dereg_irqs(S390PCIBusDevice *pbdev);
void pci_dereg_ioat(S390PCIIOMMU *iommu);
int clp_service_call(S390CPU *cpu, uint8_t r2);
int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2);
int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2);
int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2);
int clp_service_call(S390CPU *cpu, uint8_t r2, uintptr_t ra);
int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra);
int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra);
int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra);
int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
uint8_t ar);
int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar);
int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar);
uint8_t ar, uintptr_t ra);
int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
uintptr_t ra);
int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
uintptr_t ra);
#endif

14
target/s390x/kvm.c
View File

@ -1230,7 +1230,7 @@ static int kvm_clp_service_call(S390CPU *cpu, struct kvm_run *run)
uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16;
if (s390_has_feat(S390_FEAT_ZPCI)) {
return clp_service_call(cpu, r2);
return clp_service_call(cpu, r2, RA_IGNORED);
} else {
return -1;
}
@ -1242,7 +1242,7 @@ static int kvm_pcilg_service_call(S390CPU *cpu, struct kvm_run *run)
uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16;
if (s390_has_feat(S390_FEAT_ZPCI)) {
return pcilg_service_call(cpu, r1, r2);
return pcilg_service_call(cpu, r1, r2, RA_IGNORED);
} else {
return -1;
}
@ -1254,7 +1254,7 @@ static int kvm_pcistg_service_call(S390CPU *cpu, struct kvm_run *run)
uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16;
if (s390_has_feat(S390_FEAT_ZPCI)) {
return pcistg_service_call(cpu, r1, r2);
return pcistg_service_call(cpu, r1, r2, RA_IGNORED);
} else {
return -1;
}
@ -1270,7 +1270,7 @@ static int kvm_stpcifc_service_call(S390CPU *cpu, struct kvm_run *run)
cpu_synchronize_state(CPU(cpu));
fiba = get_base_disp_rxy(cpu, run, &ar);
return stpcifc_service_call(cpu, r1, fiba, ar);
return stpcifc_service_call(cpu, r1, fiba, ar, RA_IGNORED);
} else {
return -1;
}
@ -1302,7 +1302,7 @@ static int kvm_rpcit_service_call(S390CPU *cpu, struct kvm_run *run)
uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16;
if (s390_has_feat(S390_FEAT_ZPCI)) {
return rpcit_service_call(cpu, r1, r2);
return rpcit_service_call(cpu, r1, r2, RA_IGNORED);
} else {
return -1;
}
@ -1319,7 +1319,7 @@ static int kvm_pcistb_service_call(S390CPU *cpu, struct kvm_run *run)
cpu_synchronize_state(CPU(cpu));
gaddr = get_base_disp_rsy(cpu, run, &ar);
return pcistb_service_call(cpu, r1, r3, gaddr, ar);
return pcistb_service_call(cpu, r1, r3, gaddr, ar, RA_IGNORED);
} else {
return -1;
}
@ -1335,7 +1335,7 @@ static int kvm_mpcifc_service_call(S390CPU *cpu, struct kvm_run *run)
cpu_synchronize_state(CPU(cpu));
fiba = get_base_disp_rxy(cpu, run, &ar);
return mpcifc_service_call(cpu, r1, fiba, ar);
return mpcifc_service_call(cpu, r1, fiba, ar, RA_IGNORED);
} else {
return -1;
}