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authorLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 16:11:27 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 16:11:27 -0400
commit221bb8a46e230b9824204ae86537183d9991ff2a (patch)
tree92510d72285b2285be7cb87288bf088cb28af4c1 /drivers
parentf7b32e4c021fd788f13f6785e17efbc3eb05b351 (diff)
parent23528bb21ee2c9b27f3feddd77a2a3351a8df148 (diff)
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini: - ARM: GICv3 ITS emulation and various fixes. Removal of the old VGIC implementation. - s390: support for trapping software breakpoints, nested virtualization (vSIE), the STHYI opcode, initial extensions for CPU model support. - MIPS: support for MIPS64 hosts (32-bit guests only) and lots of cleanups, preliminary to this and the upcoming support for hardware virtualization extensions. - x86: support for execute-only mappings in nested EPT; reduced vmexit latency for TSC deadline timer (by about 30%) on Intel hosts; support for more than 255 vCPUs. - PPC: bugfixes. * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (302 commits) KVM: PPC: Introduce KVM_CAP_PPC_HTM MIPS: Select HAVE_KVM for MIPS64_R{2,6} MIPS: KVM: Reset CP0_PageMask during host TLB flush MIPS: KVM: Fix ptr->int cast via KVM_GUEST_KSEGX() MIPS: KVM: Sign extend MFC0/RDHWR results MIPS: KVM: Fix 64-bit big endian dynamic translation MIPS: KVM: Fail if ebase doesn't fit in CP0_EBase MIPS: KVM: Use 64-bit CP0_EBase when appropriate MIPS: KVM: Set CP0_Status.KX on MIPS64 MIPS: KVM: Make entry code MIPS64 friendly MIPS: KVM: Use kmap instead of CKSEG0ADDR() MIPS: KVM: Use virt_to_phys() to get commpage PFN MIPS: Fix definition of KSEGX() for 64-bit KVM: VMX: Add VMCS to CPU's loaded VMCSs before VMPTRLD kvm: x86: nVMX: maintain internal copy of current VMCS KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures KVM: arm64: vgic-its: Simplify MAPI error handling KVM: arm64: vgic-its: Make vgic_its_cmd_handle_mapi similar to other handlers KVM: arm64: vgic-its: Turn device_id validation into generic ID validation ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/char/sclp_early.c12
-rw-r--r--drivers/s390/char/sclp_ocf.c23
2 files changed, 26 insertions, 9 deletions
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 0ac520dd1b21..c71df0c7dedc 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -46,7 +46,8 @@ struct read_info_sccb {
u64 rnmax2; /* 104-111 */
u8 _pad_112[116 - 112]; /* 112-115 */
u8 fac116; /* 116 */
- u8 _pad_117[119 - 117]; /* 117-118 */
+ u8 fac117; /* 117 */
+ u8 _pad_118; /* 118 */
u8 fac119; /* 119 */
u16 hcpua; /* 120-121 */
u8 _pad_122[124 - 122]; /* 122-123 */
@@ -114,7 +115,12 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp.facilities = sccb->facilities;
sclp.has_sprp = !!(sccb->fac84 & 0x02);
sclp.has_core_type = !!(sccb->fac84 & 0x01);
+ sclp.has_gsls = !!(sccb->fac85 & 0x80);
+ sclp.has_64bscao = !!(sccb->fac116 & 0x80);
+ sclp.has_cmma = !!(sccb->fac116 & 0x40);
sclp.has_esca = !!(sccb->fac116 & 0x08);
+ sclp.has_pfmfi = !!(sccb->fac117 & 0x40);
+ sclp.has_ibs = !!(sccb->fac117 & 0x20);
sclp.has_hvs = !!(sccb->fac119 & 0x80);
if (sccb->fac85 & 0x02)
S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
@@ -145,6 +151,10 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp.has_siif = cpue->siif;
sclp.has_sigpif = cpue->sigpif;
sclp.has_sief2 = cpue->sief2;
+ sclp.has_gpere = cpue->gpere;
+ sclp.has_ib = cpue->ib;
+ sclp.has_cei = cpue->cei;
+ sclp.has_skey = cpue->skey;
break;
}
diff --git a/drivers/s390/char/sclp_ocf.c b/drivers/s390/char/sclp_ocf.c
index 2553db0fdb52..f59b71776bbd 100644
--- a/drivers/s390/char/sclp_ocf.c
+++ b/drivers/s390/char/sclp_ocf.c
@@ -26,7 +26,7 @@
#define OCF_LENGTH_CPC_NAME 8UL
static char hmc_network[OCF_LENGTH_HMC_NETWORK + 1];
-static char cpc_name[OCF_LENGTH_CPC_NAME + 1];
+static char cpc_name[OCF_LENGTH_CPC_NAME]; /* in EBCDIC */
static DEFINE_SPINLOCK(sclp_ocf_lock);
static struct work_struct sclp_ocf_change_work;
@@ -72,9 +72,8 @@ static void sclp_ocf_handler(struct evbuf_header *evbuf)
}
if (cpc) {
size = min(OCF_LENGTH_CPC_NAME, (size_t) cpc->length);
+ memset(cpc_name, 0, OCF_LENGTH_CPC_NAME);
memcpy(cpc_name, cpc + 1, size);
- EBCASC(cpc_name, size);
- cpc_name[size] = 0;
}
spin_unlock(&sclp_ocf_lock);
schedule_work(&sclp_ocf_change_work);
@@ -85,15 +84,23 @@ static struct sclp_register sclp_ocf_event = {
.receiver_fn = sclp_ocf_handler,
};
+void sclp_ocf_cpc_name_copy(char *dst)
+{
+ spin_lock_irq(&sclp_ocf_lock);
+ memcpy(dst, cpc_name, OCF_LENGTH_CPC_NAME);
+ spin_unlock_irq(&sclp_ocf_lock);
+}
+EXPORT_SYMBOL(sclp_ocf_cpc_name_copy);
+
static ssize_t cpc_name_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)
{
- int rc;
+ char name[OCF_LENGTH_CPC_NAME + 1];
- spin_lock_irq(&sclp_ocf_lock);
- rc = snprintf(page, PAGE_SIZE, "%s\n", cpc_name);
- spin_unlock_irq(&sclp_ocf_lock);
- return rc;
+ sclp_ocf_cpc_name_copy(name);
+ name[OCF_LENGTH_CPC_NAME] = 0;
+ EBCASC(name, OCF_LENGTH_CPC_NAME);
+ return snprintf(page, PAGE_SIZE, "%s\n", name);
}
static struct kobj_attribute cpc_name_attr =