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[Qemu-devel] [PULL 02/14] s390x/kvm: sync fprs via kvm_run
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [PULL 02/14] s390x/kvm: sync fprs via kvm_run |
Date: |
Tue, 1 Mar 2016 12:52:51 +0100 |
From: David Hildenbrand <address@hidden>
We can now also sync the fprs via kvm_run, avoiding one ioctl.
Reviewed-by: Christian Borntraeger <address@hidden>
Signed-off-by: David Hildenbrand <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
---
target-s390x/kvm.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
index 9b21b96..6763656 100644
--- a/target-s390x/kvm.c
+++ b/target-s390x/kvm.c
@@ -342,6 +342,12 @@ int kvm_arch_put_registers(CPUState *cs, int level)
}
cs->kvm_run->s.regs.fpc = env->fpc;
cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_VRS;
+ } else if (can_sync_regs(cs, KVM_SYNC_FPRS)) {
+ for (i = 0; i < 16; i++) {
+ cs->kvm_run->s.regs.fprs[i] = get_freg(env, i)->ll;
+ }
+ cs->kvm_run->s.regs.fpc = env->fpc;
+ cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_FPRS;
} else {
/* Floating point */
for (i = 0; i < 16; i++) {
@@ -482,6 +488,11 @@ int kvm_arch_get_registers(CPUState *cs)
env->vregs[i][1].ll = cs->kvm_run->s.regs.vrs[i][1];
}
env->fpc = cs->kvm_run->s.regs.fpc;
+ } else if (can_sync_regs(cs, KVM_SYNC_FPRS)) {
+ for (i = 0; i < 16; i++) {
+ get_freg(env, i)->ll = cs->kvm_run->s.regs.fprs[i];
+ }
+ env->fpc = cs->kvm_run->s.regs.fpc;
} else {
r = kvm_vcpu_ioctl(cs, KVM_GET_FPU, &fpu);
if (r < 0) {
--
2.7.2
- [Qemu-devel] [PULL 00/14] s390x patches, Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 02/14] s390x/kvm: sync fprs via kvm_run,
Cornelia Huck <=
- [Qemu-devel] [PULL 03/14] s390x: fix debug statement in trigger_page_fault(), Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 05/14] watchdog/diag288: avoid race condition on expired watchdog, Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 08/14] s390x/pci: fix reg/dereg irq functions, Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 09/14] s390x/css: Allocate channel_subsys statically, Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 11/14] s390x/pci: use PCI_MSIX_FLAGS on retrieving the MSIX entries, Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 13/14] MAINTAINERS: Remove entry for hw/s390x/s390-virtio-bus.[ch], Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 04/14] s390x: remove {kvm_}s390_virtio_irq(), Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 14/14] s390x/css: only suspend when enabled by orb, Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 06/14] s390x/virtio: old machine leftovers, Cornelia Huck, 2016/03/01
- [Qemu-devel] [PULL 01/14] linux-headers: update against kvm/next, Cornelia Huck, 2016/03/01