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At over 200 commits, covering almost all supported architectures, this

Browse source 
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.
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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
  ...
This commit is contained in:
Linus Torvalds 2014-06-04 08:47:12 -07:00
commit b05d59dfce
133 changed files with 7181 additions and 1749 deletions
Download patch file Download diff file Expand all files Collapse all files

34
drivers/s390/char/sclp_early.c
View file

@ -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