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From 33d4e21cfd236aecd9e4dbe8228d058fd1f22400 Mon Sep 17 00:00:00 2001
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From: Thomas Huth <thuth@redhat.com>
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Date: Fri, 29 May 2020 05:54:12 -0400
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Subject: [PATCH 30/42] s390x: protvirt: Move diag 308 data over SIDA
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RH-Author: Thomas Huth <thuth@redhat.com>
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Message-id: <20200529055420.16855-31-thuth@redhat.com>
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Patchwork-id: 97048
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O-Subject: [RHEL-8.3.0 qemu-kvm PATCH v2 30/38] s390x: protvirt: Move diag 308 data over SIDA
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Bugzilla: 1828317
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RH-Acked-by: Claudio Imbrenda <cimbrend@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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From: Janosch Frank <frankja@linux.ibm.com>
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For protected guests the IPIB is written/read to/from the SIDA, so we
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need those accesses to go through s390_cpu_pv_mem_read/write().
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Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
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Reviewed-by: David Hildenbrand <david@redhat.com>
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Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
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Reviewed-by: Cornelia Huck <cohuck@redhat.com>
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Message-Id: <20200319131921.2367-12-frankja@linux.ibm.com>
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Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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(cherry picked from commit 9c61e11238cfa8f70e3eb90aac5d3e5646e5432f)
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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target/s390x/diag.c | 25 ++++++++++++++++++++-----
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1 file changed, 20 insertions(+), 5 deletions(-)
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diff --git a/target/s390x/diag.c b/target/s390x/diag.c
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index b2cbefb8cf..1a48429564 100644
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--- a/target/s390x/diag.c
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+++ b/target/s390x/diag.c
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@@ -75,6 +75,7 @@ void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3, uintptr_t ra)
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{
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bool valid;
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CPUState *cs = env_cpu(env);
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+ S390CPU *cpu = S390_CPU(cs);
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uint64_t addr = env->regs[r1];
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uint64_t subcode = env->regs[r3];
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IplParameterBlock *iplb;
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@@ -111,13 +112,22 @@ void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3, uintptr_t ra)
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return;
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}
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iplb = g_new0(IplParameterBlock, 1);
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- cpu_physical_memory_read(addr, iplb, sizeof(iplb->len));
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+ if (!s390_is_pv()) {
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+ cpu_physical_memory_read(addr, iplb, sizeof(iplb->len));
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+ } else {
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+ s390_cpu_pv_mem_read(cpu, 0, iplb, sizeof(iplb->len));
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+ }
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+
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if (!iplb_valid_len(iplb)) {
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env->regs[r1 + 1] = DIAG_308_RC_INVALID;
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goto out;
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}
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- cpu_physical_memory_read(addr, iplb, be32_to_cpu(iplb->len));
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+ if (!s390_is_pv()) {
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+ cpu_physical_memory_read(addr, iplb, be32_to_cpu(iplb->len));
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+ } else {
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+ s390_cpu_pv_mem_read(cpu, 0, iplb, be32_to_cpu(iplb->len));
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+ }
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valid = subcode == DIAG308_PV_SET ? iplb_valid_pv(iplb) : iplb_valid(iplb);
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if (!valid) {
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@@ -140,12 +150,17 @@ out:
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} else {
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iplb = s390_ipl_get_iplb();
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}
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- if (iplb) {
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+ if (!iplb) {
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+ env->regs[r1 + 1] = DIAG_308_RC_NO_CONF;
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+ return;
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+ }
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+
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+ if (!s390_is_pv()) {
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cpu_physical_memory_write(addr, iplb, be32_to_cpu(iplb->len));
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- env->regs[r1 + 1] = DIAG_308_RC_OK;
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} else {
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- env->regs[r1 + 1] = DIAG_308_RC_NO_CONF;
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+ s390_cpu_pv_mem_write(cpu, 0, iplb, be32_to_cpu(iplb->len));
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}
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+ env->regs[r1 + 1] = DIAG_308_RC_OK;
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return;
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case DIAG308_PV_START:
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iplb = s390_ipl_get_iplb_pv();
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--
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2.27.0
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