public inbox for kvm@vger.kernel.org
 help / color / mirror / Atom feed
From: James Sullivan <sullivan.james.f@gmail.com>
To: kvm@vger.kernel.org
Cc: gleb@kernel.org, pbonzini@redhat.com,
	James Sullivan <sullivan.james.f@gmail.com>
Subject: [PATCH 6/9] Deliver to only low-prio cpu in kvm_irq_delivery_to_apic_fast when MSI RH=1
Date: Sat, 14 Mar 2015 18:00:21 -0600	[thread overview]
Message-ID: <1426377624-2046-7-git-send-email-sullivan.james.f@gmail.com> (raw)
In-Reply-To: <1426377624-2046-1-git-send-email-sullivan.james.f@gmail.com>

Signed-off-by: James Sullivan <sullivan.james.f@gmail.com>
---
 arch/x86/kvm/lapic.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index c26afc9..c946470 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -702,7 +702,8 @@ bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
 
 		bitmap = apic_logical_id(map, mda);
 
-		if (irq->delivery_mode == APIC_DM_LOWEST) {
+		if (irq->delivery_mode == APIC_DM_LOWEST ||
+				irq->msi_redir_hint) {
 			int l = -1;
 			for_each_set_bit(i, &bitmap, 16) {
 				if (!dst[i])
-- 
2.3.1


  parent reply	other threads:[~2015-03-15  0:03 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-15  0:00 [PATCH RFC 0/9] Implement handling of RH=1 for MSI delivery in KVM James Sullivan
2015-03-15  0:00 ` [PATCH 1/9] Extended kvm_lapic_irq struct with 'bool redir_hint' for MSI delivery James Sullivan
2015-03-15  0:00 ` [PATCH 2/9] Set irq->msi_redir_hint = 1 in kvm_set_msi_irq if RH=1 James Sullivan
2015-03-15  0:00 ` [PATCH 3/9] Set default value for msi_redir_hint=false in ioapic_service James Sullivan
2015-03-15  0:00 ` [PATCH 4/9] Set default value for msi_redir_hint=false in apic_send_ipi James Sullivan
2015-03-15  0:00 ` [PATCH 5/9] Set default value for msi_redir_hint=false in kvm_pv_kick_cpu_op James Sullivan
2015-03-15  0:00 ` James Sullivan [this message]
2015-03-15  0:00 ` [PATCH 7/9] Prevent delivery to non-lowest priority vcpus in kvm_irq_delivery_to_apic James Sullivan
2015-03-15  0:00 ` [PATCH 8/9] Removed TODO in kvm_set_msi_irq James Sullivan
2015-03-15  0:00 ` [PATCH 9/9] Print value of msi_redir_hint in debug dump of irq in apic_send_ipi James Sullivan
2015-03-16 15:30 ` [PATCH RFC 0/9] Implement handling of RH=1 for MSI delivery in KVM Radim Krčmář
2015-03-17  1:11 ` Marcelo Tosatti

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1426377624-2046-7-git-send-email-sullivan.james.f@gmail.com \
    --to=sullivan.james.f@gmail.com \
    --cc=gleb@kernel.org \
    --cc=kvm@vger.kernel.org \
    --cc=pbonzini@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox