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author | Janosch Frank <frankja@linux.ibm.com> | 2022-10-17 08:38:21 +0000 |
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committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2022-10-26 12:54:59 +0400 |
commit | 753ca06f4706cd6e57750a606afb08c5c5299643 (patch) | |
tree | fb34b482ce473c3a056adb83ca99538db8c81775 /hw/s390x | |
parent | 5433669c7a1884cc0394c360148965edf7519884 (diff) | |
download | qemu-753ca06f4706cd6e57750a606afb08c5c5299643.zip qemu-753ca06f4706cd6e57750a606afb08c5c5299643.tar.gz qemu-753ca06f4706cd6e57750a606afb08c5c5299643.tar.bz2 |
s390x: Add KVM PV dump interface
Let's add a few bits of code which hide the new KVM PV dump API from
us via new functions.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
[ Marc-André: fix up for compilation issue ]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221017083822.43118-10-frankja@linux.ibm.com>
Diffstat (limited to 'hw/s390x')
-rw-r--r-- | hw/s390x/pv.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/hw/s390x/pv.c b/hw/s390x/pv.c index 4c012f2..728ba24 100644 --- a/hw/s390x/pv.c +++ b/hw/s390x/pv.c @@ -175,6 +175,57 @@ bool kvm_s390_pv_info_basic_valid(void) return info_valid; } +static int s390_pv_dump_cmd(uint64_t subcmd, uint64_t uaddr, uint64_t gaddr, + uint64_t len) +{ + struct kvm_s390_pv_dmp dmp = { + .subcmd = subcmd, + .buff_addr = uaddr, + .buff_len = len, + .gaddr = gaddr, + }; + int ret; + + ret = s390_pv_cmd(KVM_PV_DUMP, (void *)&dmp); + if (ret) { + error_report("KVM DUMP command %ld failed", subcmd); + } + return ret; +} + +int kvm_s390_dump_cpu(S390CPU *cpu, void *buff) +{ + struct kvm_s390_pv_dmp dmp = { + .subcmd = KVM_PV_DUMP_CPU, + .buff_addr = (uint64_t)buff, + .gaddr = 0, + .buff_len = info_dump.dump_cpu_buffer_len, + }; + struct kvm_pv_cmd pv = { + .cmd = KVM_PV_DUMP, + .data = (uint64_t)&dmp, + }; + + return kvm_vcpu_ioctl(CPU(cpu), KVM_S390_PV_CPU_COMMAND, &pv); +} + +int kvm_s390_dump_init(void) +{ + return s390_pv_dump_cmd(KVM_PV_DUMP_INIT, 0, 0, 0); +} + +int kvm_s390_dump_mem_state(uint64_t gaddr, size_t len, void *dest) +{ + return s390_pv_dump_cmd(KVM_PV_DUMP_CONFIG_STOR_STATE, (uint64_t)dest, + gaddr, len); +} + +int kvm_s390_dump_completion_data(void *buff) +{ + return s390_pv_dump_cmd(KVM_PV_DUMP_COMPLETE, (uint64_t)buff, 0, + info_dump.dump_config_finalize_len); +} + #define TYPE_S390_PV_GUEST "s390-pv-guest" OBJECT_DECLARE_SIMPLE_TYPE(S390PVGuest, S390_PV_GUEST) |