github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 16:44:58 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

LoongArch: KVM: Move LSX capability check in exception handler

Browse Source 
Like FPU exception handler, check LSX capability in the LSX exception
handler rather than function kvm_own_lsx(). Since LSX capability in
the function kvm_guest_has_lsx() implies FPU capability, only checking
kvm_guest_has_lsx() is OK here.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Bibo Mao 2026-02-06 09:27:47 +08:00 committed by Huacai Chen
parent c5cb12b81a
commit 89b5dc5397
2 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/loongarch/kvm/exit.c
View File

@ -792,8 +792,10 @@ static long kvm_save_notify(struct kvm_vcpu *vcpu)
*/
static int kvm_handle_lsx_disabled(struct kvm_vcpu *vcpu, int ecode)
{
if (kvm_own_lsx(vcpu))
if (!kvm_guest_has_lsx(&vcpu->arch))
kvm_queue_exception(vcpu, EXCCODE_INE, 0);
else
kvm_own_lsx(vcpu);
return RESUME_GUEST;
}

3
arch/loongarch/kvm/vcpu.c
View File

@ -1376,9 +1376,6 @@ void kvm_own_fpu(struct kvm_vcpu *vcpu)
/* Enable LSX and restore context */
int kvm_own_lsx(struct kvm_vcpu *vcpu)
{
if (!kvm_guest_has_fpu(&vcpu->arch) || !kvm_guest_has_lsx(&vcpu->arch))
return -EINVAL;
preempt_disable();
/* Enable LSX for guest */