lkml.org 
[lkml]   [2021]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 3/3] KVM: X86: Let's harden the ipi fastpath condition edge-trigger mode
From
Date
On 07/06/21 09:19, Wanpeng Li wrote:
> From: Wanpeng Li <wanpengli@tencent.com>
>
> Let's harden the ipi fastpath condition edge-trigger mode.

This is not a good commit message... And if it's a bug, it needs a
kvm-unit-tests testcase.

Paolo

> Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
> ---
> arch/x86/kvm/x86.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index b594275..dbd3e9d 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -1922,6 +1922,7 @@ static int handle_fastpath_set_x2apic_icr_irqoff(struct kvm_vcpu *vcpu, u64 data
> return 1;
>
> if (((data & APIC_SHORT_MASK) == APIC_DEST_NOSHORT) &&
> + ((data & APIC_INT_LEVELTRIG) == 0) &&
> ((data & APIC_DEST_MASK) == APIC_DEST_PHYSICAL) &&
> ((data & APIC_MODE_MASK) == APIC_DM_FIXED) &&
> ((u32)(data >> 32) != X2APIC_BROADCAST)) {
>

\
 
 \ /
  Last update: 2021-06-08 18:29    [W:0.068 / U:0.492 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site