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Merge branch 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

Browse source 
* 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: LAPIC: ignore pending timers if LVTT is disabled
  KVM: Update MAINTAINERS for new mailing lists
  KVM: Fix kvm_vcpu_block() task state race
  KVM: ia64: Set KVM_IOAPIC_NUM_PINS to 48
  KVM: ia64: fix GVMM module including position-dependent objects
  KVM: ia64: Define new kvm_fpreg struture to replace ia64_fpreg
  KVM: PIT: take inject_pending into account when emulating hlt
  s390: KVM guest: fix compile error
  KVM: x86 emulator: fix writes to registers with modrm encodings
This commit is contained in:
Linus Torvalds 2008-05-19 13:53:21 -07:00
commit 88d53766bd
11 changed files with 63 additions and 45 deletions
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14
MAINTAINERS
View file

@ -2352,24 +2352,24 @@ S: Supported
KERNEL VIRTUAL MACHINE (KVM)
P: Avi Kivity
M: avi@qumranet.com
L: kvm-devel@lists.sourceforge.net
W: kvm.sourceforge.net
L: kvm@vger.kernel.org
W: http://kvm.qumranet.com
S: Supported
KERNEL VIRTUAL MACHINE (KVM) FOR POWERPC
P: Hollis Blanchard
M: hollisb@us.ibm.com
L: kvm-ppc-devel@lists.sourceforge.net
W: kvm.sourceforge.net
L: kvm-ppc@vger.kernel.org
W: http://kvm.qumranet.com
S: Supported
KERNEL VIRTUAL MACHINE For Itanium(KVM/IA64)
KERNEL VIRTUAL MACHINE For Itanium (KVM/IA64)
P: Anthony Xu
M: anthony.xu@intel.com
P: Xiantao Zhang
M: xiantao.zhang@intel.com
L: kvm-ia64-devel@lists.sourceforge.net
W: kvm.sourceforge.net
L: kvm-ia64@vger.kernel.org
W: http://kvm.qumranet.com
S: Supported
KERNEL VIRTUAL MACHINE for s390 (KVM/s390)

3
arch/ia64/kvm/Makefile
View file

@ -7,7 +7,6 @@ offsets-file := asm-offsets.h
always := $(offsets-file)
targets := $(offsets-file)
targets += arch/ia64/kvm/asm-offsets.s
clean-files := $(addprefix $(objtree)/,$(targets) $(obj)/memcpy.S $(obj)/memset.S)
# Default sed regexp - multiline due to syntax constraints
define sed-y
@ -54,5 +53,5 @@ EXTRA_CFLAGS_vcpu.o += -mfixed-range=f2-f5,f12-f127
kvm-intel-objs = vmm.o vmm_ivt.o trampoline.o vcpu.o optvfault.o mmio.o \
vtlb.o process.o
#Add link memcpy and memset to avoid possible structure assignment error
kvm-intel-objs += ../lib/memset.o ../lib/memcpy.o
kvm-intel-objs += memcpy.o memset.o
obj-$(CONFIG_KVM_INTEL) += kvm-intel.o

1
arch/ia64/kvm/memcpy.S Normal file
View file

@ -0,0 +1 @@
#include "../lib/memcpy.S"

1
arch/ia64/kvm/memset.S Normal file
View file

@ -0,0 +1 @@
#include "../lib/memset.S"

2
arch/x86/kvm/i8254.c
View file

@ -216,7 +216,7 @@ int pit_has_pending_timer(struct kvm_vcpu *vcpu)
{
struct kvm_pit *pit = vcpu->kvm->arch.vpit;
if (pit && vcpu->vcpu_id == 0)
if (pit && vcpu->vcpu_id == 0 && pit->pit_state.inject_pending)
return atomic_read(&pit->pit_state.pit_timer.pending);
return 0;

2
arch/x86/kvm/lapic.c
View file

@ -957,7 +957,7 @@ int apic_has_pending_timer(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *lapic = vcpu->arch.apic;
if (lapic)
if (lapic && apic_enabled(lapic) && apic_lvt_enabled(lapic, APIC_LVTT))
return atomic_read(&lapic->timer.pending);
return 0;

7
arch/x86/kvm/x86_emulate.c
View file

@ -677,8 +677,9 @@ static int decode_modrm(struct x86_emulate_ctxt *ctxt,
c->use_modrm_ea = 1;
if (c->modrm_mod == 3) {
c->modrm_val = *(unsigned long *)
decode_register(c->modrm_rm, c->regs, c->d & ByteOp);
c->modrm_ptr = decode_register(c->modrm_rm,
c->regs, c->d & ByteOp);
c->modrm_val = *(unsigned long *)c->modrm_ptr;
return rc;
}
@ -1005,6 +1006,7 @@ x86_decode_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
if ((c->d & ModRM) && c->modrm_mod == 3) {
c->src.type = OP_REG;
c->src.val = c->modrm_val;
c->src.ptr = c->modrm_ptr;
break;
}
c->src.type = OP_MEM;
@ -1049,6 +1051,7 @@ x86_decode_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
if ((c->d & ModRM) && c->modrm_mod == 3) {
c->dst.type = OP_REG;
c->dst.val = c->dst.orig_val = c->modrm_val;
c->dst.ptr = c->modrm_ptr;
break;
}
c->dst.type = OP_MEM;

40
drivers/s390/kvm/kvm_virtio.c
View file

@ -78,27 +78,32 @@ static unsigned desc_size(const struct kvm_device_desc *desc)
+ desc->config_len;
}
/*
* This tests (and acknowleges) a feature bit.
*/
static bool kvm_feature(struct virtio_device *vdev, unsigned fbit)
/* This gets the device's feature bits. */
static u32 kvm_get_features(struct virtio_device *vdev)
{
unsigned int i;
u32 features = 0;
struct kvm_device_desc *desc = to_kvmdev(vdev)->desc;
u8 *features;
u8 *in_features = kvm_vq_features(desc);
if (fbit / 8 > desc->feature_len)
return false;
for (i = 0; i < min(desc->feature_len * 8, 32); i++)
if (in_features[i / 8] & (1 << (i % 8)))
features |= (1 << i);
return features;
}
features = kvm_vq_features(desc);
if (!(features[fbit / 8] & (1 << (fbit % 8))))
return false;
static void kvm_set_features(struct virtio_device *vdev, u32 features)
{
unsigned int i;
struct kvm_device_desc *desc = to_kvmdev(vdev)->desc;
/* Second half of bitmap is features we accept. */
u8 *out_features = kvm_vq_features(desc) + desc->feature_len;
/*
* We set the matching bit in the other half of the bitmap to tell the
* Host we want to use this feature.
*/
features[desc->feature_len + fbit / 8] |= (1 << (fbit % 8));
return true;
memset(out_features, 0, desc->feature_len);
for (i = 0; i < min(desc->feature_len * 8, 32); i++) {
if (features & (1 << i))
out_features[i / 8] |= (1 << (i % 8));
}
}
/*
@ -221,7 +226,8 @@ static void kvm_del_vq(struct virtqueue *vq)
* The config ops structure as defined by virtio config
*/
static struct virtio_config_ops kvm_vq_configspace_ops = {
.feature = kvm_feature,
.get_features = kvm_get_features,
.set_features = kvm_set_features,
.get = kvm_get,
.set = kvm_set,
.get_status = kvm_get_status,

12
include/asm-ia64/kvm.h
View file

@ -22,14 +22,13 @@
*/
#include <asm/types.h>
#include <asm/fpu.h>
#include <linux/ioctl.h>
/* Architectural interrupt line count. */
#define KVM_NR_INTERRUPTS 256
#define KVM_IOAPIC_NUM_PINS 24
#define KVM_IOAPIC_NUM_PINS 48
struct kvm_ioapic_state {
__u64 base_address;
@ -61,6 +60,13 @@ struct kvm_ioapic_state {
#define KVM_CONTEXT_SIZE 8*1024
struct kvm_fpreg {
union {
unsigned long bits[2];
long double __dummy; /* force 16-byte alignment */
} u;
};
union context {
/* 8K size */
char dummy[KVM_CONTEXT_SIZE];
@ -77,7 +83,7 @@ union context {
unsigned long ibr[8];
unsigned long dbr[8];
unsigned long pkr[8];
struct ia64_fpreg fr[128];
struct kvm_fpreg fr[128];
};
};

1
include/asm-x86/kvm_x86_emulate.h
View file

@ -135,6 +135,7 @@ struct decode_cache {
u8 modrm_rm;
u8 use_modrm_ea;
unsigned long modrm_ea;
void *modrm_ptr;
unsigned long modrm_val;
struct fetch_cache fetch;
};

25
virt/kvm/kvm_main.c
View file

@ -758,25 +758,26 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
*/
void kvm_vcpu_block(struct kvm_vcpu *vcpu)
{
DECLARE_WAITQUEUE(wait, current);
DEFINE_WAIT(wait);
add_wait_queue(&vcpu->wq, &wait);
for (;;) {
prepare_to_wait(&vcpu->wq, &wait, TASK_INTERRUPTIBLE);
if (kvm_cpu_has_interrupt(vcpu))
break;
if (kvm_cpu_has_pending_timer(vcpu))
break;
if (kvm_arch_vcpu_runnable(vcpu))
break;
if (signal_pending(current))
break;
/*
* We will block until either an interrupt or a signal wakes us up
*/
while (!kvm_cpu_has_interrupt(vcpu)
&& !kvm_cpu_has_pending_timer(vcpu)
&& !signal_pending(current)
&& !kvm_arch_vcpu_runnable(vcpu)) {
set_current_state(TASK_INTERRUPTIBLE);
vcpu_put(vcpu);
schedule();
vcpu_load(vcpu);
}
__set_current_state(TASK_RUNNING);
remove_wait_queue(&vcpu->wq, &wait);
finish_wait(&vcpu->wq, &wait);
}
void kvm_resched(struct kvm_vcpu *vcpu)