diff options
Diffstat (limited to 'arch/x86/hyperv')
| -rw-r--r-- | arch/x86/hyperv/Makefile | 1 | ||||
| -rw-r--r-- | arch/x86/hyperv/hv_apic.c | 5 | ||||
| -rw-r--r-- | arch/x86/hyperv/hv_spinlock.c | 2 |
3 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/hyperv/Makefile b/arch/x86/hyperv/Makefile index 1c11f9420a82..89b1f74d3225 100644 --- a/arch/x86/hyperv/Makefile +++ b/arch/x86/hyperv/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-y := hv_init.o mmu.o nested.o obj-$(CONFIG_X86_64) += hv_apic.o diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c index 8eb6fbee8e13..5c056b8aebef 100644 --- a/arch/x86/hyperv/hv_apic.c +++ b/arch/x86/hyperv/hv_apic.c @@ -86,6 +86,11 @@ static void hv_apic_write(u32 reg, u32 val) static void hv_apic_eoi_write(u32 reg, u32 val) { + struct hv_vp_assist_page *hvp = hv_vp_assist_page[smp_processor_id()]; + + if (hvp && (xchg(&hvp->apic_assist, 0) & 0x1)) + return; + wrmsr(HV_X64_MSR_EOI, val, 0); } diff --git a/arch/x86/hyperv/hv_spinlock.c b/arch/x86/hyperv/hv_spinlock.c index a861b0456b1a..07f21a06392f 100644 --- a/arch/x86/hyperv/hv_spinlock.c +++ b/arch/x86/hyperv/hv_spinlock.c @@ -56,7 +56,7 @@ static void hv_qlock_wait(u8 *byte, u8 val) /* * Hyper-V does not support this so far. */ -bool hv_vcpu_is_preempted(int vcpu) +__visible bool hv_vcpu_is_preempted(int vcpu) { return false; } |