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| author |   Paolo Bonzini <pbonzini@redhat.com> | 2019-02-22 17:44:23 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-02-22 17:44:23 +0100 |
| commit | 8f060f53554cf58dcb28c85ff05d03ed8b02f4b2 (patch) | |
| tree | bba474bccdc99e46fe11e3867f2ddbde7353d69f /drivers | |
| parent | KVM: Minor cleanups for kvm_main.c (diff) | |
| parent | KVM: s390: add debug logging for cpu model subfunctions (diff) | |
| download | linux-dev-8f060f53554cf58dcb28c85ff05d03ed8b02f4b2.tar.xz linux-dev-8f060f53554cf58dcb28c85ff05d03ed8b02f4b2.zip | |
Merge tag 'kvm-s390-next-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-next
KVM: s390: Features for 5.1
- Clarify KVM related kernel messages
- Interrupt cleanup
- Introduction of the Guest Information Block (GIB)
- Preparation for processor subfunctions in cpu model
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/cio/chsc.c | 37 | ||||
| -rw-r--r-- | drivers/s390/cio/chsc.h | 1 |
2 files changed, 38 insertions, 0 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index a0baee25134c..4159c63a5fd2 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -1382,3 +1382,40 @@ int chsc_pnso_brinfo(struct subchannel_id schid, return chsc_error_from_response(brinfo_area->response.code); } EXPORT_SYMBOL_GPL(chsc_pnso_brinfo); + +int chsc_sgib(u32 origin) +{ + struct { + struct chsc_header request; + u16 op; + u8 reserved01[2]; + u8 reserved02:4; + u8 fmt:4; + u8 reserved03[7]; + /* operation data area begin */ + u8 reserved04[4]; + u32 gib_origin; + u8 reserved05[10]; + u8 aix; + u8 reserved06[4029]; + struct chsc_header response; + u8 reserved07[4]; + } *sgib_area; + int ret; + + spin_lock_irq(&chsc_page_lock); + memset(chsc_page, 0, PAGE_SIZE); + sgib_area = chsc_page; + sgib_area->request.length = 0x0fe0; + sgib_area->request.code = 0x0021; + sgib_area->op = 0x1; + sgib_area->gib_origin = origin; + + ret = chsc(sgib_area); + if (ret == 0) + ret = chsc_error_from_response(sgib_area->response.code); + spin_unlock_irq(&chsc_page_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(chsc_sgib); diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h index 78aba8d94eec..e57d68e325a3 100644 --- a/drivers/s390/cio/chsc.h +++ b/drivers/s390/cio/chsc.h @@ -164,6 +164,7 @@ int chsc_get_channel_measurement_chars(struct channel_path *chp); int chsc_ssqd(struct subchannel_id schid, struct chsc_ssqd_area *ssqd); int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc, u64 summary_indicator_addr, u64 subchannel_indicator_addr); +int chsc_sgib(u32 origin); int chsc_error_from_response(int response); int chsc_siosl(struct subchannel_id schid); |