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authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 15:47:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 15:47:52 -0700
commitd3f12d36f148f101c568bdbce795e41cd9ceadf3 (patch)
tree4d58ff7605a530fb052c95378d507e2350755825 /arch/s390
parent39b566eedbe9e35d38502cc5e62ef7abf1aff9c9 (diff)
parent16175a796d061833aacfbd9672235f2d2725df65 (diff)
downloadlwn-d3f12d36f148f101c568bdbce795e41cd9ceadf3.tar.gz
lwn-d3f12d36f148f101c568bdbce795e41cd9ceadf3.zip
Merge branch 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (113 commits) KVM: VMX: Don't allow uninhibited access to EFER on i386 KVM: Correct deassign device ioctl to IOW KVM: ppc: e500: Fix the bug that KVM is unstable in SMP KVM: ppc: e500: Fix the bug that mas0 update to wrong value when read TLB entry KVM: Fix missing smp tlb flush in invlpg KVM: Get support IRQ routing entry counts KVM: fix sparse warnings: Should it be static? KVM: fix sparse warnings: context imbalance KVM: is_long_mode() should check for EFER.LMA KVM: VMX: Update necessary state when guest enters long mode KVM: ia64: Fix the build errors due to lack of macros related to MSI. ia64: Move the macro definitions related to MSI to one header file. KVM: fix kvm_vm_ioctl_deassign_device KVM: define KVM_CAP_DEVICE_DEASSIGNMENT KVM: ppc: Add emulation of E500 register mmucsr0 KVM: Report IRQ injection status for MSI delivered interrupts KVM: MMU: Fix another largepage memory leak KVM: SVM: set accessed bit for VMCB segment selectors KVM: Report IRQ injection status to userspace. KVM: MMU: remove assertion in kvm_mmu_alloc_page ...
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/kvm.h7
-rw-r--r--arch/s390/include/asm/kvm_host.h3
-rw-r--r--arch/s390/kvm/Kconfig3
-rw-r--r--arch/s390/kvm/intercept.c2
-rw-r--r--arch/s390/kvm/interrupt.c7
-rw-r--r--arch/s390/kvm/kvm-s390.c4
-rw-r--r--arch/s390/kvm/kvm-s390.h2
-rw-r--r--arch/s390/kvm/priv.c18
-rw-r--r--arch/s390/kvm/sigp.c2
9 files changed, 35 insertions, 13 deletions
diff --git a/arch/s390/include/asm/kvm.h b/arch/s390/include/asm/kvm.h
index e1f54654e3ae..0b2f829f6d50 100644
--- a/arch/s390/include/asm/kvm.h
+++ b/arch/s390/include/asm/kvm.h
@@ -42,4 +42,11 @@ struct kvm_fpu {
__u64 fprs[16];
};
+struct kvm_debug_exit_arch {
+};
+
+/* for KVM_SET_GUEST_DEBUG */
+struct kvm_guest_debug_arch {
+};
+
#endif
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 3c55e4107dcc..c6e674f5fca9 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -21,9 +21,6 @@
/* memory slots that does not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 4
-struct kvm_guest_debug {
-};
-
struct sca_entry {
atomic_t scn;
__u64 reserved;
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index e051cad1f1e0..3e260b7e37b2 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -4,6 +4,9 @@
config HAVE_KVM
bool
+config HAVE_KVM_IRQCHIP
+ bool
+
menuconfig VIRTUALIZATION
bool "Virtualization"
default y
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 61236102203e..9d19803111ba 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -103,7 +103,7 @@ static int handle_lctl(struct kvm_vcpu *vcpu)
static intercept_handler_t instruction_handlers[256] = {
[0x83] = kvm_s390_handle_diag,
[0xae] = kvm_s390_handle_sigp,
- [0xb2] = kvm_s390_handle_priv,
+ [0xb2] = kvm_s390_handle_b2,
[0xb7] = handle_lctl,
[0xeb] = handle_lctlg,
};
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index f4fe28a2521a..0189356fe209 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -555,9 +555,14 @@ int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
VCPU_EVENT(vcpu, 3, "inject: program check %d (from user)",
s390int->parm);
break;
+ case KVM_S390_SIGP_SET_PREFIX:
+ inti->prefix.address = s390int->parm;
+ inti->type = s390int->type;
+ VCPU_EVENT(vcpu, 3, "inject: set prefix to %x (from user)",
+ s390int->parm);
+ break;
case KVM_S390_SIGP_STOP:
case KVM_S390_RESTART:
- case KVM_S390_SIGP_SET_PREFIX:
case KVM_S390_INT_EMERGENCY:
VCPU_EVENT(vcpu, 3, "inject: type %x", s390int->type);
inti->type = s390int->type;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 0d33893e1e89..cbfe91e10120 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -422,8 +422,8 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
return -EINVAL; /* not implemented yet */
}
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
- struct kvm_debug_guest *dbg)
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+ struct kvm_guest_debug *dbg)
{
return -EINVAL; /* not implemented yet */
}
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index 3893cf12eacf..00bbe69b78da 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -50,7 +50,7 @@ int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code);
/* implemented in priv.c */
-int kvm_s390_handle_priv(struct kvm_vcpu *vcpu);
+int kvm_s390_handle_b2(struct kvm_vcpu *vcpu);
/* implemented in sigp.c */
int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 3605df45dd41..4b88834b8dd8 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -304,12 +304,24 @@ static intercept_handler_t priv_handlers[256] = {
[0xb1] = handle_stfl,
};
-int kvm_s390_handle_priv(struct kvm_vcpu *vcpu)
+int kvm_s390_handle_b2(struct kvm_vcpu *vcpu)
{
intercept_handler_t handler;
+ /*
+ * a lot of B2 instructions are priviledged. We first check for
+ * the priviledges ones, that we can handle in the kernel. If the
+ * kernel can handle this instruction, we check for the problem
+ * state bit and (a) handle the instruction or (b) send a code 2
+ * program check.
+ * Anything else goes to userspace.*/
handler = priv_handlers[vcpu->arch.sie_block->ipa & 0x00ff];
- if (handler)
- return handler(vcpu);
+ if (handler) {
+ if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
+ return kvm_s390_inject_program_int(vcpu,
+ PGM_PRIVILEGED_OPERATION);
+ else
+ return handler(vcpu);
+ }
return -ENOTSUPP;
}
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 2a01b9e02801..f27dbedf0866 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -153,8 +153,6 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
switch (parameter & 0xff) {
case 0:
- printk(KERN_WARNING "kvm: request to switch to ESA/390 mode"
- " not supported");
rc = 3; /* not operational */
break;
case 1: