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[Qemu-devel] [PATCH 02/10] s390x/kvm: sync fprs via kvm_run
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [PATCH 02/10] s390x/kvm: sync fprs via kvm_run |
Date: |
Tue, 23 Feb 2016 12:19:02 +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) {
--
2.7.1
- [Qemu-devel] [PATCH 00/10] s390x: pending patches, Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 04/10] s390x: remove {kvm_}s390_virtio_irq(), Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 10/10] s390x/css: Use static initialization for channel_subsys fields, Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 06/10] s390x/virtio: old machine leftovers, Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 02/10] s390x/kvm: sync fprs via kvm_run,
Cornelia Huck <=
- [Qemu-devel] [PATCH 01/10] linux-headers: update against kvm/next, Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 07/10] s390x/css: introduce indicator refcounting interfaces, Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 09/10] s390x/css: Allocate channel_subsys statically, Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 03/10] s390x: fix debug statement in trigger_page_fault(), Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 05/10] watchdog/diag288: avoid race condition on expired watchdog, Cornelia Huck, 2016/02/23
- [Qemu-devel] [PATCH 08/10] s390x/pci: fix reg/dereg irq functions, Cornelia Huck, 2016/02/23
- Re: [Qemu-devel] [PATCH 00/10] s390x: pending patches, Cornelia Huck, 2016/02/29