Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm into next

Pull KVM updates from Paolo Bonzini:
 "At over 200 commits, covering almost all supported architectures, this
  was a pretty active cycle for KVM.  Changes include:

   - a lot of s390 changes: optimizations, support for migration, GDB
     support and more

   - ARM changes are pretty small: support for the PSCI 0.2 hypercall
     interface on both the guest and the host (the latter acked by
     Catalin)

   - initial POWER8 and little-endian host support

   - support for running u-boot on embedded POWER targets

   - pretty large changes to MIPS too, completing the userspace
     interface and improving the handling of virtualized timer hardware

   - for x86, a larger set of changes is scheduled for 3.17.  Still, we
     have a few emulator bugfixes and support for running nested
     fully-virtualized Xen guests (para-virtualized Xen guests have
     always worked).  And some optimizations too.

  The only missing architecture here is ia64.  It's not a coincidence
  that support for KVM on ia64 is scheduled for removal in 3.17"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (203 commits)
  KVM: add missing cleanup_srcu_struct
  KVM: PPC: Book3S PR: Rework SLB switching code
  KVM: PPC: Book3S PR: Use SLB entry 0
  KVM: PPC: Book3S HV: Fix machine check delivery to guest
  KVM: PPC: Book3S HV: Work around POWER8 performance monitor bugs
  KVM: PPC: Book3S HV: Make sure we don't miss dirty pages
  KVM: PPC: Book3S HV: Fix dirty map for hugepages
  KVM: PPC: Book3S HV: Put huge-page HPTEs in rmap chain for base address
  KVM: PPC: Book3S HV: Fix check for running inside guest in global_invalidates()
  KVM: PPC: Book3S: Move KVM_REG_PPC_WORT to an unused register number
  KVM: PPC: Book3S: Add ONE_REG register names that were missed
  KVM: PPC: Add CAP to indicate hcall fixes
  KVM: PPC: MPIC: Reset IRQ source private members
  KVM: PPC: Graciously fail broken LE hypercalls
  PPC: ePAPR: Fix hypercall on LE guest
  KVM: PPC: BOOK3S: Remove open coded make_dsisr in alignment handler
  KVM: PPC: BOOK3S: Always use the saved DAR value
  PPC: KVM: Make NX bit available with magic page
  KVM: PPC: Disable NX for old magic page using guests
  KVM: PPC: BOOK3S: HV: Add mixed page-size support for guest
  ...

1 files changed, 32 insertions, 2 deletions

diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 14196ea0fdf3..1918d9dff45d 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -22,11 +22,14 @@ struct read_info_sccb {
         u8      rnsize;                 /* 10 */
         u8      _reserved0[16 - 11];    /* 11-15 */
         u16     ncpurl;                 /* 16-17 */
-        u8      _reserved7[24 - 18];    /* 18-23 */
+        u16     cpuoff;                 /* 18-19 */
+        u8      _reserved7[24 - 20];    /* 20-23 */
         u8      loadparm[8];            /* 24-31 */
         u8      _reserved1[48 - 32];    /* 32-47 */
         u64     facilities;             /* 48-55 */
-        u8      _reserved2[84 - 56];    /* 56-83 */
+        u8      _reserved2a[76 - 56];   /* 56-75 */
+        u32     ibc;                    /* 76-79 */
+        u8      _reserved2b[84 - 80];   /* 80-83 */
         u8      fac84;                  /* 84 */
         u8      fac85;                  /* 85 */
         u8      _reserved3[91 - 86];    /* 86-90 */
@@ -45,6 +48,8 @@ static unsigned int sclp_con_has_linemode __initdata;
 static unsigned long sclp_hsa_size;
 static unsigned int sclp_max_cpu;
 static struct sclp_ipl_info sclp_ipl_info;
+static unsigned char sclp_siif;
+static u32 sclp_ibc;
 
 u64 sclp_facilities;
 u8 sclp_fac84;
@@ -96,6 +101,9 @@ static int __init sclp_read_info_early(struct read_info_sccb *sccb)
 
 static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
 {
+        struct sclp_cpu_entry *cpue;
+        u16 boot_cpu_address, cpu;
+
         if (sclp_read_info_early(sccb))
                 return;
 
@@ -106,6 +114,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
         sclp_rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
         sclp_rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
         sclp_rzm <<= 20;
+        sclp_ibc = sccb->ibc;
 
         if (!sccb->hcpua) {
                 if (MACHINE_IS_VM)
@@ -116,6 +125,15 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
                 sclp_max_cpu = sccb->hcpua + 1;
         }
 
+        boot_cpu_address = stap();
+        cpue = (void *)sccb + sccb->cpuoff;
+        for (cpu = 0; cpu < sccb->ncpurl; cpue++, cpu++) {
+                if (boot_cpu_address != cpue->address)
+                        continue;
+                sclp_siif = cpue->siif;
+                break;
+        }
+
         /* Save IPL information */
         sclp_ipl_info.is_valid = 1;
         if (sccb->flags & 0x2)
@@ -148,6 +166,18 @@ unsigned int sclp_get_max_cpu(void)
         return sclp_max_cpu;
 }
 
+int sclp_has_siif(void)
+{
+        return sclp_siif;
+}
+EXPORT_SYMBOL(sclp_has_siif);
+
+unsigned int sclp_get_ibc(void)
+{
+        return sclp_ibc;
+}
+EXPORT_SYMBOL(sclp_get_ibc);
+
 /*
  * This function will be called after sclp_facilities_detect(), which gets
  * called from early.c code. The sclp_facilities_detect() function retrieves