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| author | David Hildenbrand <david@redhat.com> | 2017-09-28 22:36:52 +0200 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2017-10-20 13:32:10 +0200 |
| commit | f875cb0c2180e182585dc00151e2cf74d20e7c8c (patch) | |
| tree | 6c61ac8c3f7a9507d09149f344c06b1fc01aeea2 /target/s390x/helper.c | |
| parent | cf729baaec3fceff31ea8f41e34fbc7e2475916d (diff) | |
| download | qemu-f875cb0c2180e182585dc00151e2cf74d20e7c8c.tar.gz | |
s390x/kvm: factor out storing of adtl CPU status
Called from SIGP code to be factored out, so let's move it. Add a
FIXME for TCG code in the future.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170928203708.9376-15-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/helper.c')
| -rw-r--r-- | target/s390x/helper.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/s390x/helper.c b/target/s390x/helper.c index 4c11822074..2505f3aec0 100644 --- a/target/s390x/helper.c +++ b/target/s390x/helper.c @@ -305,6 +305,35 @@ int s390_store_status(S390CPU *cpu, hwaddr addr, bool store_arch) return 0; } + +#define ADTL_GS_OFFSET 1024 /* offset of GS data in adtl save area */ +#define ADTL_GS_MIN_SIZE 2048 /* minimal size of adtl save area for GS */ +int s390_store_adtl_status(S390CPU *cpu, hwaddr addr, hwaddr len) +{ + hwaddr save = len; + void *mem; + + mem = cpu_physical_memory_map(addr, &save, 1); + if (!mem) { + return -EFAULT; + } + if (save != len) { + cpu_physical_memory_unmap(mem, len, 1, 0); + return -EFAULT; + } + + /* FIXME: as soon as TCG supports these features, convert cpu->be */ + if (s390_has_feat(S390_FEAT_VECTOR)) { + memcpy(mem, &cpu->env.vregs, 512); + } + if (s390_has_feat(S390_FEAT_GUARDED_STORAGE) && len >= ADTL_GS_MIN_SIZE) { + memcpy(mem + ADTL_GS_OFFSET, &cpu->env.gscb, 32); + } + + cpu_physical_memory_unmap(mem, len, 1, len); + + return 0; +} #endif /* CONFIG_USER_ONLY */ void s390_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf, |